WO2023005245A1 - 压缩介入器械的压握器及介入器械的装载方法 - Google Patents

压缩介入器械的压握器及介入器械的装载方法 Download PDF

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Publication number
WO2023005245A1
WO2023005245A1 PCT/CN2022/083448 CN2022083448W WO2023005245A1 WO 2023005245 A1 WO2023005245 A1 WO 2023005245A1 CN 2022083448 W CN2022083448 W CN 2022083448W WO 2023005245 A1 WO2023005245 A1 WO 2023005245A1
Authority
WO
WIPO (PCT)
Prior art keywords
gear
compressing
crimping device
interventional
ring gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/083448
Other languages
English (en)
French (fr)
Inventor
王健
王翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Venus Medtech Hangzhou Inc
Original Assignee
Venus Medtech Hangzhou Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Venus Medtech Hangzhou Inc filed Critical Venus Medtech Hangzhou Inc
Priority to EP22847865.7A priority Critical patent/EP4378422A4/en
Priority to CN202280048527.4A priority patent/CN117615736A/zh
Priority to CN202411854520.9A priority patent/CN119732772A/zh
Publication of WO2023005245A1 publication Critical patent/WO2023005245A1/zh
Priority to US18/408,543 priority patent/US20240148528A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/9522—Means for mounting a stent or stent-graft onto or into a placement instrument
    • A61F2/9524—Iris-type crimpers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2427—Devices for manipulating or deploying heart valves during implantation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/9522—Means for mounting a stent or stent-graft onto or into a placement instrument
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2412—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with soft flexible valve members, e.g. tissue valves shaped like natural valves
    • A61F2/2418—Scaffolds therefor, e.g. support stents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2427—Devices for manipulating or deploying heart valves during implantation
    • A61F2/2436—Deployment by retracting a sheath
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve

Definitions

  • the present application relates to the technical field of medical devices, in particular to a crimping device for compressing interventional devices.
  • the crimping device In order to facilitate the delivery of interventional instruments in the body, the crimping device needs to be used for radial compression before the operation to obtain a smaller radial size. After compression, it is loaded into the delivery system and sent to the treatment site in the body in a compressed state, and finally at the desired position expanded to functional size.
  • the crimping device in the prior art includes a plurality of force-applying parts acting on the interventional instrument, and the relative movement of each force-applying part can radially compress the interventional device, for example, in a crimping device disclosed in the prior art
  • a crimping device for compressing interventional instruments including:
  • each force applying block is distributed around the instrument channel.
  • the multiple force applying blocks have relative gathering states and separated states, and are in the switching state The corresponding retractable instrument channel during the process;
  • a ring gear the ring gear is rotatably matched with the housing, and the ring gear synchronously drives a plurality of force applying blocks to switch states.
  • each optional way can be carried out independently for the above-mentioned overall scheme
  • Combination can also be a combination of multiple options.
  • the ring gear synchronously drives a plurality of force applying blocks to switch between the gathered state and the separated state by way of meshing transmission.
  • the crimping device further includes a transmission mechanism, and the transmission mechanism is transmission-connected between the ring gear and each force applying block.
  • the transmission mechanism includes:
  • the rack is arranged on each force applying block
  • the transmission gear is rotatably installed in the housing, and each rack and the ring gear are meshed and driven by one or more transmission gears.
  • the rotation axis of the ring gear is parallel to the extension direction of the instrument channel.
  • the rotation axis of the transmission gear and the rotation axis of the ring gear are parallel to each other.
  • the ring gear includes an annular portion, and driving teeth distributed on the annular portion and drivingly matched with the force applying block, and the driving teeth are arranged in at least one of the following manners:
  • the driving teeth are internal teeth distributed on the inner edge of the annular part
  • the driving teeth are outer teeth distributed on the outer edge of the annular part
  • the driving teeth are side teeth distributed on the axial end surface of the annular part.
  • the number of the driving teeth is an integer multiple of the number of the force applying blocks.
  • the number of the driving teeth is 8 times the number of the force applying blocks.
  • the annular portion is provided with a plurality of weight reducing grooves.
  • the ring gear surrounds the periphery of a plurality of force applying blocks.
  • the rack and the ring gear are arranged in a misaligned manner.
  • two racks fixed on the same force applying block are arranged side by side, and each rack is respectively located on both sides of the ring gear along the extension direction of the instrument channel.
  • the transmission gear adopts 1-3 stages of gear transmission, and according to the transmission sequence, the first stage meshes with the ring gear, and the last stage meshes with the rack.
  • the transmission gear includes multiple sets, and each set corresponds to a force applying block.
  • each set of transmission gears includes a first gear and a second gear fixedly arranged coaxially with the first gear, the first gear meshes with the ring gear, and the second gear and the corresponding force applying block gears on the gear mesh.
  • a second gear is configured for each rack, or the same second gear is configured for all the racks.
  • the diameter of the pitch circle of the first gear is D1
  • the diameter of the pitch circle of the second gear is D2
  • the axial length of the first gear is L1
  • the axial length of the second gear is L2
  • it satisfies, L1:L2 (3 ⁇ 6):1.
  • the range of transmission ratio between the first gear and the ring gear is 1: (5-15);
  • the range of transmission ratio between the second gear and the ring gear is 1:(5-15).
  • the transmission ratio between the first gear and the ring gear is 1:9.6;
  • the transmission ratio of the second gear to the ring gear is 1:9.6.
  • the transmission ratio of the first gear to the ring gear is 3:26;
  • the transmission ratio of the second gear to the ring gear is 3:26.
  • the rack and the force applying block are integrally or separately arranged.
  • the interventional device is an artificial heart valve.
  • the crimping device further includes a driving mechanism for driving the ring gear to rotate.
  • the drive mechanism includes at least one of the following methods:
  • the drive mechanism is a drive handle indirectly or directly connected to the ring gear
  • the driving mechanism is an electric part that is in transmission connection with the ring gear.
  • the electric element is mounted on the housing to drive the ring gear to rotate relative to the housing.
  • the electric part is a motor.
  • the housing is provided with an operation window, at least a part of the ring gear is exposed to the operation window, and this part is connected with the driving handle.
  • At least a part of the ring gear is a connection part exposed to the operation window, and the driving handle is detachably fixed to the connection part.
  • the angle between the center of the circle corresponding to the stroke of the driving handle is 30°-120°.
  • the angle between the center of the circle corresponding to the stroke of the driving handle is 30°-60°.
  • the angle between the centers of the circles corresponding to the stroke of the driving handle is 40 degrees.
  • the driving handle includes a gripping portion and a locking portion, and the ring gear is provided with a locking slot matching the locking portion.
  • the driving handle is a rod-shaped structure, one end of the driving handle is connected to the ring gear, and the other end extends away from the instrument channel.
  • one end of the force applying block facing the instrument channel has a bent portion
  • the bending portion has a first edge surface on the outside and a second edge surface on the inside;
  • the inner wall of the instrument channel is surrounded by the intersection of the first edge surface and the second edge surface of each force applying block.
  • the first edge surface of one force applying block is in contact with the second edge surface of the other force applying block.
  • the second edge surface shielding plate divides the first edge surface, and the part of the first edge surface exposed to the instrument channel is Action surface;
  • both the first edge surface and the second edge surface connect with other adjacent parts of the force applying block through an arc-shaped transition surface.
  • the included angle between the first edge surface and the second edge surface along the circumference of the instrument channel is 30 degrees.
  • the included angle between the moving direction of the force applying block and the second edge is 105 degrees, and the included angle between the moving direction of the force applying block and the first edge is 75 degrees.
  • the angle between the moving directions of two adjacent force applying blocks is 30 degrees.
  • the housing is in the shape of a hollow disc, the instrument passage runs through the axis of the disc, the interior of the housing is an installation chamber, and the ring gear and the force block are located in the installation room.
  • the application also provides a loading method for interventional instruments, including:
  • the ring gear drives a plurality of force applying blocks to move synchronously to compress the interventional instrument
  • the compressed interventional device is transferred into the tube for loading the interventional device.
  • the tube is pre-positioned and aligned with the instrument channel.
  • a stepwise compression method is adopted according to the radial dimensions of different positions of the interventional device.
  • the interventional instrument includes a first section and a second section along its axial direction, and the radial dimension of the first section is larger than the radial dimension of the second section;
  • the step-by-step compression methods include:
  • the first tube of the delivery system is passed through the interventional device, the interventional device is compressed to fit the first tube, and the compressed interventional device is pushed to the delivery system. in the second pipe.
  • the crimping device disclosed in the application drives the movement of the force application block through the ring gear, which reduces the number of parts of the crimping device, can better control the cost of mold opening and the size of parts, and achieves simple assembly and no cumbersome fixed assembly The effect of form.
  • the present application also provides a crimping device for compressing interventional instruments, including:
  • the housing is hollow and has a through instrument channel
  • a plurality of force application blocks each force application block is movably installed in the housing, and distributed around the instrument channel, a plurality of force application blocks can be relatively gathered and separated, and correspondingly retract the instrument channel; at least one force application
  • the block is provided with an indication mark, and the housing is provided with a window corresponding to the position of the indication mark.
  • the ring gear is used to configure the drive mechanism to synchronously drive multiple force application blocks .
  • the indicator mark and the force applying block are integrally structured or fixed separately, and are located on one side of the force applying block along the axial direction of the housing (ie, the extension direction of the instrument channel).
  • the separate fixing method is plugging and/or bonding.
  • one of the indicator mark and the force application block is provided with a socket, and the other is provided with a slot matching the socket.
  • the window is bar-shaped and extends along the movement direction of the force applying block where the indicator is located.
  • the movement direction of the force applying block with the indication mark is parallel to the bottom surface of the crimping device.
  • the window is hollowed out in the housing, and a transparent cover is provided at the hollowed out part.
  • the transparent cover is fastened to the hollow part of the housing.
  • the ends of the indication marks protrude from the window to form an indication portion, and the width of the indication portion is greater than the width of the window.
  • the casing has a recessed area surrounding the viewing window, and the indicator is placed in the recessed area;
  • the transparent cover is fastened to the recessed area and is at the same height as the peripheral portion of the housing.
  • the at least two indication marks are respectively located on two opposite sides of the housing along the axial direction of the housing.
  • the indicating part has a color different from that of the casing.
  • the housing and/or the transparent cover is provided with a reference scale corresponding to the displacement of the indicator mark.
  • the present application also provides a crimping device for compressing interventional instruments, including:
  • the housing is hollow and has a through instrument channel
  • each force application block is movably installed in the housing, and distributed around the instrument channel, a plurality of force application blocks can be relatively gathered and separated, and correspondingly retract the instrument channel;
  • a ring gear the ring gear is rotatably installed in the housing and is located on the periphery of the instrument channel, the ring gear is connected to each of the force applying blocks, and synchronously drives a plurality of force applying blocks;
  • At least a part of the drive shaft is located in the housing and linked with the ring gear, and at least a part is used to connect to a power source.
  • the rotation axis of the drive shaft is parallel to the rotation axis of the ring gear.
  • the power source is a knob and/or a motor
  • knob is exposed to the housing, and the knob and the drive shaft are in an integral or separate structure;
  • the motor is inside the casing.
  • the crimping device has opposite fronts and backs, the knob is located on the front of the housing, and a bracket is installed on the front of the housing.
  • At least a part of the knob is located outside the housing, and an elastic gasket is pressed between this part and the outer wall of the housing.
  • the elastic gasket is ring-shaped, the elastic gasket is sleeved on the knob, and one axial side of the elastic gasket is in contact with the housing, and the other side is in contact with the The knobs are snug.
  • the outer wall of the housing has an indented area corresponding to the position of the knob, and the elastic gasket is placed in the indented area.
  • the drive shaft is located outside the ring gear.
  • the drive shaft and the ring gear are directly driven or driven through a linkage assembly
  • the linkage assembly is driven by a gear set or a worm gear.
  • the gear set includes a plurality of gears engaged in transmission, and the rotation axis of each gear is parallel to the drive shaft.
  • the number of said gears is 2-5.
  • the gear set includes:
  • the third gear is fixedly arranged coaxially with the drive shaft;
  • a fourth gear, the fourth gear is rotatably matched with the housing, and the fourth gear is meshed and driven between the third gear and the ring gear.
  • the ring gear includes an annular portion, and driving teeth meshed with the linkage assembly are distributed on the outer periphery of the annular portion.
  • both the third gear and the fourth gear are located in the housing, and along the radial direction of the ring gear, the third gear and the fourth gear are both located outside the ring gear .
  • the fourth gear includes at least a first unit tooth and a second unit tooth arranged coaxially, meshing with the third gear and the driving tooth respectively;
  • the tooth thickness ratio of the first unit teeth and the second unit teeth is 1:0.7 ⁇ 1.5.
  • the outer periphery of the ring gear is partially offset to form an offset area, and the driving teeth are located in the offset area;
  • the ring gear forms an avoidance area on the front of the offset area, and the avoidance area accommodates the first unit teeth or the second unit teeth.
  • the present application also provides a crimping device for compressing interventional instruments, including:
  • the housing is hollow and has a through instrument channel
  • each force application block is movably installed in the housing, and distributed around the instrument channel, a plurality of force application blocks can be relatively gathered and separated, and correspondingly retract the instrument channel;
  • the ring gear is rotatably installed in the housing and is located on the periphery of the instrument channel.
  • the ring gear is connected to each of the force applying blocks and synchronously drives a plurality of force applying blocks.
  • the gear The ring is provided with multiple limiting structures, and the multiple limiting structures have different circumferential positions of the ring gear;
  • a shift member the shift member is movably installed relative to the housing, the shift member has a plurality of working positions, and cooperates with a corresponding limiting structure in each working position to limit the rotation of the ring gear.
  • the radial positions of each limiting structure of the ring gear are different; the shift member moves to a corresponding working position along the radial direction of the ring gear.
  • the limiting structure is a limiting step arranged on the ring gear, and the gear member is in the working position to abut against the corresponding limiting step along the circumferential direction of the ring gear for limiting.
  • the crimping device further includes a driving mechanism for driving the shift member, and the driving mechanism includes:
  • the operation button is rotatably mounted on the housing;
  • the transmission part is linked with the operation button, and can drive the shift part to switch between the working positions;
  • the elastic member acts on the shift member to keep the shift member at the working position.
  • the transmission member is a cam
  • the rotation axis of the cam is perpendicular to the moving direction of the shift member.
  • the operation button is located on the front of the casing, and is arranged on both sides of the operation channel with the windows on the same side.
  • the shift member at least includes a driving part abutting against the outer peripheral side of the cam, a locking part cooperating with the limiting structure, and a transmission part connected with the elastic part;
  • the driving part and the locking part are located on two opposite sides of the gear member.
  • the elastic member is a compression spring, and the elastic member is pressed between the transmission part and the inner wall of the housing, and exerts force on the radially inner side of the shift member.
  • the shifting member is block-shaped, and the shifting member is located between the inner wall of the housing and the ring gear.
  • the driving portion faces radially outward of the shift member
  • the orientation of the locking portion is perpendicular to the orientation of the position member.
  • the shift member has a first groove structure and a second groove structure on two opposite sides along the axial direction of the ring gear, the first groove structure accommodates part of the ring gear structure, and the second groove structure The cam is accommodated, and one of the inner walls of the second groove structure is the driving part.
  • the radial inner side of the shift member has a third groove structure, and the bottom wall of the third groove structure is the transmission part;
  • the shift member also has a cylinder fixed in the third groove structure, and the end of the elastic member is sleeved on the outside of the cylinder.
  • the shift member has an opposite top surface and a bottom surface, and the locking portion is located on the top surface of the shift member and between the first groove structure and the third groove structure.
  • the operation button and the cam are transmitted through a plurality of intermeshing transmission gears, and the rotation axis of the operation button, the rotation axis of the cam, and the rotation axes of each transmission gear are parallel;
  • the first transmission gear is arranged coaxially with the operation button, and the last transmission gear is arranged coaxially with the cam.
  • the shifting member is located between two adjacent force applying blocks, and the moving path of the shifting member avoids each force applying block.
  • the crimping device further includes a locking member for locking the shift member in a corresponding working position, and the locking member directly or indirectly interferes with at least one of the following moving parts:
  • the inner wall of the housing has a plurality of engaging slots cooperating with the locking member, and the plurality of engaging slots are sequentially arranged along the rotation or moving direction of the moving part.
  • the lock includes:
  • a lock tongue, the lock tongue is matched with the card slot
  • a connecting arm, the connecting arm is connected between the lock tongue and the moving part, and can be deformed.
  • the extension direction of the connecting arm is arc-shaped, both ends of the connecting arm are respectively connected to the moving parts, and the locking tongue is located at the top of the arc of the connecting arm.
  • the crimping device also includes a shrapnel mounted on the housing;
  • the ring gear is provided with a plurality of locking teeth that cooperate with the elastic pieces along its circumference, and the elastic pieces can pass over the locking teeth and vibrate or make sound.
  • Fig. 1 is a schematic structural view of a crimping device in an embodiment provided by the present application
  • Fig. 2 is a structural schematic diagram of another viewing angle of the crimping device in Fig. 1;
  • Fig. 3 is a schematic diagram of an exploded structure of the crimping device in Fig. 1;
  • Fig. 4 is a schematic diagram of a partial exploded structure of the crimping device in Fig. 1;
  • Fig. 5 is a structural schematic view omitting the transparent cover plate in Fig. 4;
  • Fig. 6 is a structural schematic diagram of the indicating mark and the force applying block in Fig. 3;
  • Fig. 7 is a schematic diagram of the decomposed structure of the indicating mark and the force applying block in Fig. 6;
  • Fig. 8 is a structural schematic diagram of the omitted part of the shell of the crimping device in Fig. 1;
  • Fig. 9 is a structural schematic diagram of part of the housing in Fig. 8.
  • Fig. 10 is a partial sectional view of the housing in Fig. 9;
  • Fig. 11 is a schematic structural view of the force block and the ring gear in Fig. 8;
  • Fig. 12 is a schematic structural view of the force block and the ring gear in Fig. 8;
  • Fig. 13 is a schematic structural view of the ring gear in Fig. 11;
  • Fig. 14 is a schematic structural view of the force block and the transmission mechanism in Fig. 11;
  • Fig. 15 is a schematic structural view of the transmission mechanism in Fig. 14;
  • Fig. 16 is a schematic diagram of an exploded structure of the transmission mechanism in Fig. 15;
  • Fig. 17 is a partial structural schematic diagram of the crimping device in Fig. 1;
  • Fig. 18 is a schematic diagram of an exploded structure of the knob and the rotating shaft in Fig. 17;
  • Fig. 19 is a schematic structural view of the crimping device in an embodiment provided by the present application.
  • Fig. 20 is a partial structural schematic diagram of the gear member and the housing in Fig. 19;
  • Fig. 21 is a schematic structural view of the housing in Fig. 20;
  • Fig. 22 is a structural schematic diagram of the gear member and the ring gear
  • Fig. 23 is a structural schematic diagram of another perspective of the gear member and the ring gear
  • Fig. 24 is a schematic structural view of the gear member in Fig. 20;
  • Fig. 25 is a schematic structural view of the first transmission gear in Fig. 22;
  • Fig. 26 is a schematic structural view of the second transmission gear in Fig. 22;
  • Fig. 27 is a schematic diagram of an exploded structure of the crimping device and the bracket in Fig. 19;
  • Fig. 28 is a schematic diagram of an exploded structure of the crimping device and the bracket in Fig. 27;
  • Fig. 29 is a schematic diagram of an exploded structure of the bracket in Fig. 27;
  • Fig. 30 is a schematic structural view of the first half cylinder of the bracket in Fig. 29;
  • Fig. 31 is a schematic structural view of the second half cylinder of the bracket in Fig. 29;
  • Fig. 32 is a schematic diagram of an exploded structure of the shell and the base in the crimping device
  • Figure 33 is a schematic structural view of the base in Figure 32;
  • Fig. 34 is a schematic structural diagram of an interventional device in an embodiment provided by the present application.
  • Fig. 35 is a schematic structural view of the interventional device in Fig. 34 after being compressed;
  • Figure 36 is a schematic structural view of the crimping device in an embodiment provided by the present application.
  • Figure 37 is a schematic structural view of the crimping device in an embodiment provided by the present application.
  • Fig. 38 is a structural schematic diagram of the part of the shell omitted from the crimping device in Fig. 36;
  • Fig. 39 is a structural schematic diagram of the part of the shell omitted from the crimping device in Fig. 36;
  • Fig. 40 is a schematic diagram of an exploded structure of the crimping device in Fig. 36;
  • Fig. 41 is a schematic structural view of the ring gear and the force applying block in Fig. 38;
  • Fig. 42 is a schematic structural view of the ring gear and the force applying block in Fig. 38;
  • Fig. 43 is a schematic structural view of the ring gear in Fig. 41;
  • Fig. 44 is a schematic structural view of the transmission mechanism in Fig. 41;
  • Fig. 45 is a schematic structural view of the transmission mechanism in Fig. 42;
  • Fig. 46 is a schematic structural view of the force block in Fig. 41;
  • Fig. 47 is a schematic diagram of the connection structure between the drive handle and the housing
  • Fig. 48 is a schematic diagram of an exploded structure of the driving handle and the housing in Fig. 47;
  • Fig. 49 is a schematic diagram of an exploded structure of the housing in Fig. 36;
  • Fig. 50 is a partial structural schematic diagram of the housing in Fig. 49;
  • Figure 51 is a schematic structural view of the body in Figure 49;
  • Figure 52 is a schematic structural view of the crimping device
  • Figure 53 is a schematic structural view of the crimping device
  • Fig. 54 is a schematic diagram of an exploded structure of the crimping device in Fig. 53;
  • Fig. 55 is a flow chart of a loading method of an interventional instrument according to an embodiment of the present application.
  • Figure 56 is a schematic structural view of an interventional device
  • Figure 57 is a schematic structural view of an interventional device
  • Fig. 58 is a schematic structural view of loading an interventional instrument into the delivery system.
  • 40 ring gear; 41, annular part; 411, driving teeth; 42, internal teeth; 43, transmission mechanism; 431, rack; 432, transmission gear; 433, fifth gear; 434, sixth gear; 435, rotating shaft ; 436, the second block; 437, the second slot; 438, the hole; 44, the locking tooth; 441, the first guide tooth surface; 442, the second guide tooth surface; Bit steps; 452, transitional surface; 46, offset area; 47, avoidance area;
  • bracket bracket; 81, first half cylinder; 811, second half cylinder; 812, bearing bracket; 813, rotation groove; 814, limit tooth; 815, fixed shaft; 816, engaging block; 817, operation Ear; 818, guide surface; 819, locking surface; 82, elastic liner; 83, fitting part; 831, clamping block; 832, clamping groove; 84, transition section;
  • Interventional devices 201. Stents;
  • 9100 crimping device
  • 9101 instrument channel
  • 9103 delivery system
  • 9104 first pipe fitting
  • 9105 second pipe fitting
  • 9106 guide head
  • 9107 installation head
  • driving mechanism 951, driving handle; 9511, grip part; 9512, clamping part; 952, shielding plate;
  • bracket bracket; 981, bearing bracket; 9811, block; 982, elastic liner; 9821, groove; 983, supporting part; 984, supporting part; , fitting part; 988, flaring section; 989, half-tube structure;
  • interventional device 991, bracket; 992, connecting ear; 993, first paragraph; 994, second paragraph.
  • a component when a component is said to be “connected” to another component, it may be directly connected to the other component or intervening components may also exist. When a component is said to be “set on” another component, it may be set directly on the other component or there may be an intervening component at the same time.
  • first, second and so on are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the quantity and order of the indicated technical features. Thus, a feature defined as “first” and “second” may explicitly or implicitly include one or more of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise specifically defined.
  • the present application provides a crimping device 100 for compressing an interventional instrument 200, including:
  • housing 10 the housing 10 is hollow and has a through instrument channel 11;
  • a plurality of force applying blocks 20 are movably installed in the casing 10 and distributed around the instrument channel 11 .
  • the plurality of force applying blocks 20 can be relatively gathered and separated, and the instrument channel 11 can be retracted accordingly.
  • the interventional device 200 needs to be radially compressed with the crimping device 100 before the operation to obtain a smaller radial size. Expand to functional size at desired location.
  • the plurality of force applying blocks 20 are in a relatively separated state. After the interventional instrument 200 enters the instrument channel 11, the multiple force applying blocks 20 gradually switch from separation to gathering. During this process, the multiple force applying blocks 20 will shrink the instrument channel 11, and the inner wall of the instrument channel 11 will squeeze the interventional instrument. 200 , the inner wall of the instrument channel 11 uniformly reduces the size of the interventional instrument 200 .
  • the shapes of the force application blocks 20 are the same; during the installation process of the force application blocks 20 , there is no need to identify the type of the force application blocks 20 , which simplifies the assembly method of the force application blocks 20 .
  • the crimping device 100 has opposite fronts 101 and backs 102; the crimping device 100 has a bottom surface (such as A in FIG. in B). Wherein, two ends of the instrument channel 11 are respectively opened to the front 101 and the back 102 of the crimping device 100 .
  • each force application block 20 is movably arranged in the installation chamber.
  • the shape of the casing 10 is not strictly limited, for example, the casing 10 is roughly cylindrical in the figure.
  • a split structure can be adopted, that is, the housing 10 includes two half-shells that are interlocked with each other.
  • the housing 10 includes two half-shells that are interlocked with each other.
  • it can also be divided into more parts.
  • multiple methods such as buckles and screws can be used.
  • the shell 10 has an axial direction in space, and the two ends of the shell 10 along the axial direction correspond to the front 101 and the back 102 of the crimper 100 respectively.
  • the instrument channel 11 extends along the axial direction of the housing 10 .
  • Each half-shell is respectively provided with a window 13, and each window 13 is connected with the installation chamber, and the two axial ends of the instrument channel 11 are respectively opened to the two windows 13. Wherein, each force application block 20 is exposed at the corresponding window 13 when the interventional instrument 200 is crimped.
  • the inner wall of the instrument channel 11 is composed of force applying blocks 20 cooperating with each other. It needs to be explained that gathering and separation of multiple force applying blocks 20 is a relative concept; separation corresponds to: each force applying block 20 is radially outward and has a tendency to move away from each other; when multiple force applying blocks 20 are gathered, they will The interventional instrument 200 is compressed.
  • the instrument channel 11 has a central axis, and the central axis passes through the geometric center of the instrument channel 11. During the process of each force applying block 20 retracting the instrument channel 11, the position of the central axis of the instrument channel 11 will not change, so as to avoid affecting the Compression of the interventional device 200 .
  • the interventional device 200 (such as an artificial heart valve, only the stent part is shown in the figure) is an example, the interventional device 200 includes a cylindrical stent 201, and the stent 201 can generally be cut or braided. Formed, in order to achieve radial deformation, it is mostly a grid structure.
  • the stent 201 is provided with leaflets (generally two or three, which cooperate with each other to control blood flow), and can be set to stick to the inner wall of the stent 201 or The covering of the outer wall.
  • a crimping device 100 for indicating the degree of compression of an interventional instrument 200 including:
  • housing 10 the housing 10 is hollow and has a through instrument channel 11;
  • a plurality of force application blocks 20, each force application block 20 is movably installed in the housing 10, and distributed around the instrument channel 11, the plurality of force application blocks 20 can be relatively gathered and separated, and the instrument channel 11 is retracted accordingly;
  • At least one force application block 20 is provided with an indicator mark 30
  • the casing 10 is provided with a window 14 corresponding to the position of the indicator mark 30 .
  • the indicator mark 30 can indicate the position of the force application block 20; the force application block 20 will drive the indicator mark 30 to move during the movement; observe the position of the indicator mark 30 through the window 14 to determine the movement position of the force application block 20, so as to be able to It is convenient to determine the scaling degree of the instrument channel 11 .
  • the specific shape of the indicator mark 30 is not strictly limited (for example, the indicator mark 30 in the figure is rod-shaped), at least it is convenient for the operator to observe.
  • the indicator mark 30 may protrude from the outer surface of the force applying block 20 ; or the indicator mark 30 is a part of the force applying block 20 , but its color is different from that of other parts of the force applying block 20 .
  • the indicator mark 30 is located on one side of the force applying block 20, and the window 14 is located on the corresponding side of the housing 10, so as to shorten the distance between the window 14 and the indicator mark 30, and the corresponding window 14 is a bar shape, and extend along the movement direction of the force application block 20 where the indicator mark 30 is located.
  • the indicator mark 30 and the force applying block 20 are fixed separately, and the separate fixing method is plug-in and/or bonding.
  • the indicator mark 30 and the force applying block 20 may be integrally structured.
  • one of the indicator mark 30 and the force applying block 20 is provided with a plugging portion 31 , and the other is provided with a slot 21 matching with the plugging portion 31 .
  • the insertion part 31 is columnar and fixed on the end of the indicator 30 facing the force application block 20 , and the side wall of the force application block 20 is provided with a slot 21 roughly consistent with the outline of the insertion part 31 .
  • the movement direction of the force applying block 20 with the indicator mark 30 is parallel to the bottom surface of the crimping device 100, and the bottom surface is generally horizontal during use, and the horizontal movement of the indicator mark 30 is beneficial to eliminate visual errors relative to the oblique movement.
  • the window 14 is hollowed out in the housing 10, and a transparent cover 141 is fastened on the hollowed out part.
  • the transparent cover 141 is provided with a first block 142
  • the housing 10 is provided with a first card that matches the first block 142.
  • the groove 143 and the transparent cover plate 141 can seal the window 14 without interfering with the observation indicator 30 .
  • the casing 10 has a recessed area 144 surrounding the window 14, and the indicator 32 is placed in the recessed area 144; the transparent cover 141 is fastened to the recessed area 144, and is at the same height as the peripheral part of the casing 10, that is, the transparent cover 141 and Both outer surfaces of the casing 10 are substantially flush with each other.
  • the housing 10 and/or the transparent cover 141 may be provided with reference scales for knowing the displacement of the indicator marks 30 , the reference scales are arranged in sequence along the movement direction of the indicator marks 30 and are adjacent to the indicator marks 30 for comparison.
  • the end portion of the indicator mark 30 protrudes from the window 14 to form an indicating portion 32.
  • the width of the indicating portion 32 is greater than the width of the viewing window 14 (it can be understood as the height direction in FIG. 10 Different colors can be configured for distinction.
  • Multiple indication marks 30 can be configured, for example, two are located on two opposite sides in the axial direction of the housing 10 , and the operator can observe the indication marks 30 from different sides of the crimping device 100 .
  • the two indication signs 30 can also be fixed on the same force application block 20 to ensure precise synchronization of indications.
  • Each force application block 20 can be driven in various ways, one embodiment provides an improved way, as shown in Figure 8 to Figure 16, the crimping device 100 also includes a ring gear 40, the ring gear 40 and the housing 10 rotate Cooperating, the ring gear 40 synchronously drives a plurality of force applying blocks 20 .
  • the ring gear 40 is rotated to drive a plurality of force application blocks 20 to separate or gather relatively.
  • the synchronous movement can be understood as that each force application block 20 moves at the same time, and the moving speed is the same.
  • the number of parts of the crimping device 100 is reduced, the cost of mold opening and the size of the parts can be better controlled, and the assembly is simple without cumbersome fixed assembly forms.
  • the rotation axis of the ring gear 40 is parallel to the extension direction of the instrument channel 11 ; the rotation axis of the ring gear 40 is perpendicular to the movement direction of the force applying block 20 .
  • the ring gear 40 includes an annular portion 41 (such as a circular ring in the figure), and internal teeth 42 distributed on the inner edge of the annular portion 41 and drivingly matched with the force applying block 20 .
  • the ring gear 40 can synchronously drive multiple force applying blocks 20 through the internal teeth 42 in a meshing transmission manner, so as to improve the stability and precision of the ring gear 40 driving the multiple force applying blocks 20 .
  • annular portion 41 there is a certain space in the annular portion 41, and the annular portion 41 surrounds the periphery of the plurality of force applying blocks 20, so that the structure of the crimping device 100 is more compact, and the size of the crimping device is reduced.
  • each rack 431 is meshed with the internal teeth 42 on the ring gear 40 through one or more transmission gears 432 for transmission.
  • the gear racks 431 are synchronously driven by the transmission gear 432 to drive the force applying block 20 to move.
  • the ring gear 40 , the transmission gear 432 and the rack 431 adopt a meshing transmission mode, so that the ring gear 40 can stably drive the force applying block 20 to move.
  • the ring gear 40 surrounds the periphery of the transmission gear 432; the rotation axis of the transmission gear 432 is parallel to the rotation axis of the ring gear 40; along the extension direction of the instrument channel 11, the rack 431 and the ring gear 40 are misaligned to reduce interference and allow
  • the rack 431 has a larger stroke.
  • the transmission gear 432 includes multiple sets, each set corresponds to a force applying block 20, and each set of transmission gear 432 adopts 1 to 3 stages of gear transmission; wherein the first stage transmission gear meshes with the ring gear 40, and the last stage The transmission gear meshes with the rack 431 .
  • the shapes of the transmission gears 432 are the same; during the installation of the transmission gears 432 , there is no need to identify the type of the transmission gears 432 , which simplifies the assembly of the transmission gears 432 .
  • Each set of transmission gears 432 includes a fifth gear 433 and a sixth gear 434 coaxially fixed with the fifth gear 433, the fifth gear 433 meshes with the ring gear 40, and the sixth gear 434 is in contact with the corresponding force applying block 20.
  • the racks 431 are meshed.
  • the force applying block 20 when the force applying block 20 is running, the force applying block 20 avoids the fifth gear 433 and the sixth gear 434 .
  • two racks 431 fixed on the same force applying block 20 are arranged side by side, and each rack 431 is located on both sides of the ring gear 40 along the extension direction of the instrument channel 11 .
  • the transmission gear 432 drives the force application block 20 to move by driving the two racks 431.
  • the arrangement of the two racks 431 can increase the force application points acting on the force application block 20 along the direction of the instrument channel 11, so that the operation of the force application block 20 is stable.
  • the slot 21 is located on one side of the rack 431 .
  • each set of transmission gears 432 includes two sixth gears 434, the two sixth gears 434 are respectively located on both sides of the fifth gear 433, and the sixth gear 434 is at least partially located on both sides of the ring gear 40 , and the local position is engaged with the corresponding rack 431 .
  • the transmission gear 432 is rotatably engaged with the casing 10 through a rotating shaft 435 .
  • Each of the fifth gear 433 and each of the sixth gears 434 has a through hole 438 through which the rotating shaft 435 passes.
  • the sixth gear 434 and the fifth gear 433 can adopt an integrated structure, and the fifth gear 433 and at least one sixth gear 434 can also be arranged separately, so as to facilitate the demoulding process of the transmission gear 432 .
  • one of the end surfaces is provided with a second locking block 436
  • the other end surface is provided with a second locking slot 437 matching with the second locking block 436 .
  • the connection strength can be further strengthened by means of bonding or the like.
  • the sixth gear 434 and the rotating shaft 435 can also be connected in a manner similar to the sixth gear 434 and the fifth gear 433, and adopt an integral or separate structure.
  • the number of internal teeth 42 is an integral multiple (for example, 8 times) of the number of force applying blocks 20 , so that the three phases of the ring gear 40 , the transmission gear 432 and the rack 431 are synchronized, thereby ensuring that the force applying blocks 20 move synchronously.
  • the number of internal teeth 42 is 96, and the number of force applying blocks 20 is 12; the number of internal teeth 42 is 104, and the number of force applying blocks 20 is 8.
  • the transmission ratio range between the fifth gear 433 and the ring gear 40 is 1: (5-15);
  • the range of transmission ratio between the six gears 434 and the ring gear 40 is 1:(5-15).
  • the number of teeth of the fifth gear 433 and the number of teeth of the sixth gear 434 are 10; the number of teeth of the ring gear 40 is 96, and the transmission ratio of the fifth gear 433 and the ring gear 40 is 1:9.6;
  • the transmission ratio of the ring gear 40 is 1:9.6.
  • the number of teeth of the fifth gear 433 and the number of teeth of the sixth gear 434 are both 12; the number of teeth of the ring gear 40 is 104, and the transmission ratio of the fifth gear 433 and the ring gear 40 is 3:26; the sixth gear 434 and the ring gear The 40 has a gear ratio of 3:26.
  • the fifth gear 433 and the sixth gear 434 can also be combined with the related descriptions about the first gear 9421 and the second gear 9422 in the following embodiments.
  • the force application block 20 has a bent portion 22 (approximately hook-shaped) at one end of the instrument channel 11; along the circumferential direction of the instrument channel 11, the bent portion 22 has a The outer first edge surface 221 and the inner second edge surface 222 ; the inner wall of the instrument channel 11 is surrounded by the intersection of the first edge surface 221 and the second edge surface 222 of each force applying block 20 .
  • the rack 431 is connected to an end of the force applying block 20 facing away from the bending portion 22 .
  • the first edge surface 221 of one force applying block 20 is in contact with the second edge surface 222 of the other force applying block 20 .
  • the second edge surface 222 covers part of the first edge surface 221, and the part of the first edge surface 221 exposed to the instrument channel 11 is the active surface; the force applying block 20 When switching from gathering to separating, the length of the active surface along the circumferential direction of the instrument channel 11 increases gradually.
  • both the first edge surface 221 and the second edge surface 222 smoothly transition to other adjacent parts of the force applying block 20 through the arc transition surface 223; the first edge surface 221 and the second edge surface 222
  • the included angle in the circumferential direction of the instrument channel 11 is 30 degrees; the included angle between the moving direction of the force applying block 20 and the second edge surface 222 is 105 degrees, and the included angle with the first edge surface 221 is 75 degrees; In the circumferential direction of the channel 11 , the included angle between the moving directions of two adjacent force applying blocks 20 is 30 degrees.
  • the inner wall of the housing 10 is provided with a guide groove 19, and part of the structure of the force application block 20 is placed in the guide groove 19, and can be moved along the guide groove. 19 slides.
  • the opening in the guide groove 19 faces the force applying block 20 , and the opening has a flared opening 191 , which can guide the force applying block 20 into the guide groove 19 .
  • a part of the guide groove 19 expands outwards to form an escape area 193 for avoiding the sixth gear 434 .
  • the inner wall of the casing 10 is integrally provided with two oppositely arranged guide plates 192 , and the guide groove 19 is formed between the two guide plates 192 .
  • the guide groove 19 is formed between the two guide plates 192 .
  • two opposite sides of the force applying block 20 are attached to the corresponding guide plates 192 to avoid shaking of the force applying block 20 in the circumferential direction of the instrument channel 11 .
  • the crimping device 100 also includes a shrapnel 70 mounted on the housing 10; the ring gear 40 is provided with a plurality of locking teeth 44 matching with the shrapnel 70 along its circumference, and the shrapnel 70 It can pass over the latch 44 and vibrate or make a sound.
  • One end of the elastic piece 70 is a connecting portion 71 fixedly connected with the housing 10, and the other end is a triggering portion 72 matched with the bayonet 44.
  • the triggering portion 72 extends to the outer wall of the ring gear 40 and is connected to the outer wall of the ring gear 40. gap fit between them.
  • the connecting part 71 is roughly cylindrical; the inner wall of the housing 10 is provided with a fixing column 16, the connecting part 71 is sleeved on the fixing column 16, and fixed to the fixing column 16, and the axis of the fixing column 16 is parallel to the axial direction of the housing 10 set up.
  • the outer wall of the fixing column 16 has a locking block, and the connecting portion 71 has a locking slot matching with the locking block.
  • the triggering portion 72 is sheet-shaped and bent into a roughly C-shape; the triggering portion 72 is fixed to the side wall of the connecting portion 71 and integrally arranged with the connecting portion 71 ; at least the triggering portion 72 of the elastic sheet 70 is made of elastic material.
  • locking teeth 44 there are multiple locking teeth 44 (for example, three in the figure), and are disposed on the outer periphery of the ring gear 40 .
  • the two sides of the locking tooth 44 respectively have a first guide tooth surface 441 and a second guide tooth surface 442, and the first guide tooth surface 441 and the second guide tooth surface 442 are on the side facing away from the The sides converge to form tooth tips, and the trigger piece 72 will vibrate or make a sound when it passes over the tooth tips.
  • the housing 10 includes:
  • the first half-shell 12 and the second half-shell 121 are interlocked with each other, and an installation room is enclosed between the first half-shell 12 and the second half-shell 121;
  • the decorative plate 122 is fastened to the first half shell 12 or the second half shell 121 , and the decorative plate 122 covers the back of the casing 10 .
  • the first half-shell 12 is roughly cylindrical (such as a cylinder in the figure); one axial end of the first half-shell 12 is closed, and the other end is open. Wherein, the closed end of the first half-shell faces the front of the casing 10 , and the open end faces the back of the casing 10 .
  • the second half shell 121 is plate-shaped, and fastened to the opening of the first half shell 12 ; the second half shell 121 and the first half shell 12 can be connected by screws. Wherein, the decorative plate 122 is fastened to the second half shell 121 .
  • the part of the outer periphery of the housing 10 other than the connection with the base 90 is the upper middle part, and the outer periphery of the upper middle part is closed, and the components inside the housing 10 will not protrude radially outward from the upper middle part. Further, the outer periphery of the middle and upper part extends smoothly, so as to make the appearance of the casing 10 more concise and avoid unnecessary scratches.
  • a crimping device 100 applied to an interventional instrument 200 including:
  • housing 10 the housing 10 is hollow and has a through instrument channel 11;
  • a plurality of force application blocks 20, each force application block 20 is movably installed in the housing 10, and distributed around the instrument channel 11, the plurality of force application blocks 20 can be relatively gathered and separated, and the instrument channel 11 is retracted accordingly;
  • the ring gear 40, the ring gear 40 is rotatably installed in the housing 10 and is located on the periphery of the instrument channel 11, the ring gear 40 is transmission connected to each force applying block 20, and drives a plurality of force applying blocks 20 synchronously;
  • the drive shaft 50 at least a part of the drive shaft 50 is located in the housing 10 and linked with the ring gear 40 , at least a part of which is used to connect to the power source 51 .
  • the power source 51 provides power for the drive shaft 50, and the drive shaft 50 only needs to drive the ring gear 40 to rotate to drive the force applying blocks 20 to separate or gather, so as to reduce the difficulty of alignment between the drive shaft 50 and the ring gear 40 , and at the same time, it can also reduce the difficulty of assembling the drive shaft 50 and the ring gear 40 .
  • the drive shaft 50 is a component that can transmit at least torque.
  • the power source 51 can select electric components or manual drive components in the prior art. When the motion mode directly output by the power source 51 is inconsistent with the motion mode of the drive shaft 50, appropriate transmission components can be used to transfer and transmit the motion form.
  • the power source 51 is a knob 52 and/or a motor; at least a part of the knob 52 is exposed to the housing 10 , and the motor is inside the housing 10 . The following embodiments are described with the power source 51 as the knob 52 .
  • the knob 52 and the driving shaft 50 are in an integral or separate structure; in the case of a separate structure, the knob 52 and the driving shaft 50 are directly or indirectly connected.
  • the knob 52 has a fitting groove 521 , and one axial end of the drive shaft 50 extends into the fitting groove 521 and engages with the fitting groove 521 so that the driving shaft 50 can rotate synchronously with the knob 52 .
  • the cross section of the matching groove 521 is non-circular, and the outer contour of the driving shaft 50 is substantially the same as that of the matching groove 521 to ensure synchronous rotation between the driving shaft 50 and the knob 52 .
  • the knob 52 includes a casing 522 and a connecting piece 523 nested in the casing 522 and engaged with the casing 522 .
  • the matching groove 521 is defined in the connecting piece 523 . The operator drives the drive shaft 50 to move through the connecting piece 523 by holding the outer wall of the housing 522 .
  • the shell 522 and the connecting member 523 are substantially cylindrical. One axial end of the casing 522 is closed, and the other end is open. The outer edge of the opening of the casing 522 fits the side wall of the housing 10; one axial end of the connector 523 extends into the casing 522, and the other end into the housing 10.
  • the outer wall of the connector 523 is provided with a third block 524, and the inner wall of the housing 522 is provided with a third slot 525 matched with the third block 524, so as to connect the housing 522 with the connector 423.
  • the outer periphery of the shell 522 is provided with a plurality of depressions 526 .
  • the knob 52 is located at the front of the housing 10 in the extending direction of the instrument channel 11 . At least a part of the knob 52 is outside the housing 10, and an elastic gasket is arranged between this part and the outer wall of the housing 10, and the elastic gasket can increase the friction between the knob 52 and the housing 10, and the knob 52 position is locked.
  • the outer wall of the housing has an inner concave area 123 corresponding to the position of the knob 52 , and the elastic gasket is placed in the inner concave area 123 and is at the same height as the peripheral part of the housing 10 .
  • the elastic gasket is ring-shaped, and the elastic gasket is sleeved on the knob 52 (connector 523), and one axial side of the elastic gasket is in close contact with the housing 10, and the other side is in contact with the knob 52 (the outer shell 522 faces the shell). body 10) against each other.
  • the drive shaft 50 has an axis in space, and the knob 52 can drive the drive shaft 50 to rotate around its own axis.
  • the axis of the drive shaft 50 can be understood as the rotation axis of the drive shaft 50 .
  • the axis of rotation of the drive shaft 50 is parallel to the axis of rotation of the ring gear 40; along the radial direction of the ring gear 40, the drive shaft 50 is located outside the ring gear 40, so as to avoid increasing the size of the crimping device 100 in the extending direction of the instrument channel 11 , so that the structure of the crimping device 100 is more compact.
  • the drive shaft 50 and the ring gear 40 are directly transmitted or transmitted through a linkage assembly 53 .
  • the outer circumference of the annular portion 41 is distributed with driving teeth 411 engaged with the linkage assembly 53 .
  • the radial direction of the housing 10 protrudes outward, and the protruding part transitions with other parts of the housing 10 through a circular arc surface, and the protruding part can increase the internal space of the housing 10, which is convenient for the drive shaft 50 and the linkage assembly 53. assembly.
  • the linkage assembly 53 transmits the output of the drive shaft 50 to the ring gear 40 to make the ring gear 40 rotate.
  • the linkage assembly 53 can adopt various transmission modes in the prior art according to the installation position and motion form of the drive shaft 50 and the ring gear 40 , and change the direction and speed of motion to adapt to the working characteristics of the drive shaft and ring gear.
  • the linkage assembly 53 is driven by a gear set or a worm gear. The following embodiments are illustrated by using a gear set in the linkage assembly 53 .
  • the gear set includes a plurality of gears for meshing transmission, and the rotation axis of each gear is parallel to the drive shaft.
  • the number of gears is 2 to 5, for example, the number of gears in the figure is 2.
  • the gear set includes a third gear 531 and a fourth gear 532, the third gear 531 is coaxially fixed with the drive shaft 50, the fourth gear 532 is in rotation with the housing 10, and the fourth gear 532 meshes with the third gear 531 and the ring gear 40.
  • both the third gear 531 and the fourth gear 532 are located in the housing, and along the radial direction of the ring gear 40 , the third gear 531 and the fourth gear 532 are both located outside the ring gear 40 .
  • the fourth gear 532 includes at least a first unit tooth 533 and a second unit tooth 534 coaxially arranged, the first unit tooth 533 meshes with the third gear 531 , and the second unit tooth 534 meshes with the driving tooth 411 .
  • the tooth thickness ratio of the first unit teeth 533 and the second unit teeth 534 is 1:0.7 ⁇ 1.5, so as to enhance the structural strength between the first unit teeth 533 and the second unit teeth 534 .
  • the outer periphery of the ring gear 40 is partially offset to form an offset area 46, and the driving teeth 411 are located in the offset area 46; ) form the avoidance area 47, and the avoidance area 47 accommodates the first unit teeth 533.
  • the inner wall of the housing 10 is provided with a mounting post 15, and the mounting post 15 is a double-layer structure nested inside and outside.
  • the double-layer structure of the shaft hole 151 can enhance the connection strength between the mounting post 15 and the casing 10 and provide stable support for the wheel shaft 536 .
  • the installation column 15 is integrally arranged with the housing.
  • the mounting column 15 includes an inner cylinder 152, an outer cylinder 153 and a sealing plate 154.
  • the inner cylinder 152 has a shaft hole 151.
  • the outer cylinder of the outer cylinder 153 is sleeved on the outside of the inner cylinder 152.
  • the sealing plate 154 is ring-shaped, and the inner periphery of the sealing plate 154 It is connected to the end of the inner cylinder 152 , and the outer peripheral edge is connected to the end of the outer cylinder 153 .
  • the installation column 15 also includes a reinforcing rib plate, which is fixed between the inner cylinder 152 and the outer cylinder 153 and extends along the axial direction of the installation column 15 . Wherein, there are multiple reinforcing ribs, and the multiple reinforcing ribs are arranged along the axial direction of the inner cylinder 152 .
  • a first alignment mark 54 is provided between the drive shaft 50 and the housing 10 to indicate the predetermined orientation of the knob 52 and determine the installation position of the knob 52 .
  • the first alignment marks 54 are set in pairs, one of the first alignment marks 54 is set on the inner wall of the housing 10 , and the other first alignment mark 54 is set on the drive shaft 50 .
  • the specific shape of the first alignment mark 54 is not strictly limited.
  • the first alignment mark 54 is a triangle, a square, etc.
  • the predetermined direction of the knob 52 may be oriented through a direction indicator provided on the knob 52, or the shape of the knob 52 (for example, the knob 52 is in the shape of a bar in the figure).
  • a crimping device 100 applied to an interventional instrument 200 including:
  • housing 10 the housing 10 is hollow and has a through instrument channel 11;
  • a plurality of force application blocks 20, each force application block 20 is movably installed in the housing 10, and distributed around the instrument channel 11, the plurality of force application blocks 20 can be relatively gathered and separated, and the instrument channel 11 is retracted accordingly;
  • the ring gear 40, the ring gear 40 is rotatably installed in the housing 10 and is located on the periphery of the instrument channel 11.
  • the ring gear 40 is connected to the ring gear 40 in transmission and drives a plurality of force applying blocks 20 synchronously.
  • the ring gear 40 is provided in multiple places Limiting structure 45, a plurality of limiting structures 45 have different circumferential positions on the ring gear 29;
  • the shift member 60 is movably installed relative to the housing 10 .
  • the shift member 60 has a plurality of working positions, and cooperates with the corresponding limiting structure 45 in each working position to limit the rotation of the ring gear 40 .
  • Ring gear 40 is in the process of rotating, and each limit structure 45 can rotate synchronously with ring gear 40;
  • the position of the force block 20 is fixed to limit the compression of the interventional instrument 200 by the force block 20; during the rotation of the ring gear 40, different limiting structures 45 will cooperate with the gear 60 to realize the compression of the interventional instrument. 200 progressive compression effects.
  • each limiting structure 45 on the ring gear 40 The radial positions of each limiting structure 45 on the ring gear 40 are different; the shift member 60 moves to the corresponding working position along the radial direction of the ring gear 40 .
  • the limit structure 45 is a limit step 451 provided on the ring gear 40 , and the gear member 60 is in the working position to abut against the corresponding limit step 451 along the circumferential direction of the ring gear 40 .
  • Each limiting step 451 is set along the inner peripheral edge of the ring gear 40.
  • the gear member 60 is switched between the two adjacent limiting steps 451. , the shift member 60 avoids the transition surface 452 .
  • the shift member 60 is located between two adjacent force application blocks 20 , and the movement path of the shift member 60 avoids each force application block 20 .
  • the crimping device 100 also includes a drive mechanism 61 for driving the shift member 60;
  • the drive mechanism 61 includes an operation button 611, a transmission member and an elastic member 613, and the operation button 611 is rotatably mounted on the housing 10;
  • the piece is linked with the operation button 611 and can drive the gear piece 60 to switch between the working positions; the elastic piece 613 acts on the gear piece 60 to keep the gear piece 60 in the working position.
  • the operation button 611 is located on the front of the housing 10 .
  • the operation button 611 and the window 14 on the same side are respectively arranged on two opposite sides of the instrument channel 11 .
  • the transmission part is a cam 612 , and the rotation axis of the cam 612 is perpendicular to the movement direction of the shift member 60 ; the movement direction of the shift member 60 is parallel to the bottom surface of the crimping device 100 .
  • the outer peripheral side of the cam 612 is a continuous curved surface, and the shift member 60 can abut against the outer peripheral side of the cam 612. When the shift member 60 abuts against the outer peripheral side of the cam 612 at different positions, the operation of the shift member 60 can be changed. bit.
  • a second alignment mark 64 is provided between the cam 612 and the housing 10 , and the second alignment mark 64 is used to indicate the cam 612 and make the shift member 60 in a non-working position.
  • the non-working position of the shift member 60 is understood as a state other than the working position.
  • the outer side of the cam 612 is furthest away from the rotation axis and fits with the locking portion 651 of the shift member 60 .
  • the second alignment marks 64 are arranged in pairs, one of the second alignment marks 64 is placed on the inner wall of the housing 10 , and the other second alignment mark 64 is arranged on the side wall of the cam 612 .
  • the specific shape of the second alignment mark 64 is not strictly limited.
  • the second alignment mark 64 is a triangle, a square, or the like.
  • the operation button 611 and the cam 612 are transmitted through a plurality of intermeshing transmission gears 62 , and the rotation axis of the operation button 611 , the rotation axis of the cam 612 and the rotation axes of each transmission gear 62 are parallel.
  • there are two transmission gears 62 which are respectively the first transmission gear 621 and the second transmission gear 622.
  • the first transmission gear 621 is coaxially arranged with the operation button 611, and the second transmission gear 622 is coaxial with the cam 612. Set, the first transmission gear 621 is meshed with the second transmission gear 622 for transmission.
  • the inner wall of the housing 10 is provided with a guide groove 194, and part of the structure of the shift member 60 is placed in the guide groove 194, and can slide along the guide groove 194.
  • there are two guide slots 194 and each guide slot 194 is located on two opposite sides of the shift member 60 along the axial direction of the casing 10 .
  • the shift member 60 at least includes a driving part 65 abutting against the outer peripheral side of the cam 612, a locking part 651 cooperating with the limiting structure 45, and a transmission part 652 connected with the elastic part 613;
  • the driving portion 65 and the locking portion 651 are located on two opposite sides of the shifting member 60 .
  • the driving portion 65 faces radially outward of the shift member 60 ; the orientation of the locking portion 651 is perpendicular to the orientation of the shift member 60 .
  • the shift member 60 is roughly block-shaped (such as a rectangular body in the figure), and has opposite top and bottom surfaces; the shift member 60 is located between the inner wall of the housing 10 and the ring gear 40 .
  • the shift member 60 has a first groove structure 653 and a second groove structure 654 along the axial direction of the ring gear 40, and a third groove structure 655 on the radial inner side; wherein, the first groove structure 653 accommodates part of the structure of the ring gear 40;
  • the second groove structure 654 accommodates the cam 612, and one of the inner walls of the second groove structure 654 is the driving part 65, and is an arc-shaped surface; the bottom wall of the third groove structure 655 is the transmission part 652, and the elastic member 613 presses against the second The bottom wall of the three-slot structure 655 ; the locking portion 651 is located on the top surface of the shift member 60 and between the first slot structure 653 and the third slot structure 655 .
  • the elastic member 613 is a compression spring, and the elastic member 613 is pressed between the transmission part 652 and the inner wall of the housing 10 (the groove wall on the inner side of the guide groove 194 in the radial direction), and is pressed against the diameter of the gear member 60 . Apply pressure inward.
  • a cylinder 656 is disposed in the third groove structure 655 , and the end of the elastic member 613 is sleeved on the outside of the cylinder 656 to fix the elastic member 613 .
  • the crimping device 100 also includes a locking member 63 for locking the shift member 60 in the corresponding working position, and the locking member 63 directly or indirectly interferes with at least one of the following moving parts: the shift member 60; the operation Button 611; Cam 612; Transmission gear 62.
  • the inner wall of the housing 10 has a plurality of locking grooves 632 that cooperate with the locking member 63 , and the plurality of locking grooves 632 are sequentially arranged along the rotation or movement direction of the moving part.
  • the locking member 63 is disposed on the first transmission gear 621 , and the housing 10 is provided with a plurality of lock grooves 632 arranged along the circumferential direction of the first transmission gear 621 .
  • the locking part 63 includes a dead bolt 631 and a connecting arm 633, the connecting arm 633 is connected between the dead bolt 631 and the moving parts, the extension trend of the connecting arm 633 is arc-shaped, and the two ends of the connecting arm 633 are connected with the moving parts, the lock
  • the tongue is located at the arc top of the connecting portion.
  • the two ends of the connecting arm 633 are respectively connected to the first transmission gear 621, and the arc-shaped opening of the connecting arm 633 faces the rotation axis of the first transmission gear 621; The rotation axis of the first transmission gear 621 is set.
  • the lock tongue 631 will be inserted into the corresponding lock groove 632 to limit the rotation of the first transmission gear 621, and the connecting arm 633 can be deformed to adapt the lock tongue 631 to enter and exit the corresponding lock groove. 632.
  • the compressed interventional instrument 200 needs to be loaded into the tube.
  • the tube in this embodiment, as shown in FIGS. It is detachably mounted on the housing 10 in a suitable manner, and has a support position corresponding to the position of the instrument channel 11.
  • the channel in the tube is arranged opposite to the instrument channel 11, so that the interventional instrument 200 can enter the channel in the tube.
  • the inside of the bracket 80 serves as a bearing bracket 812 for a supporting position.
  • the bracket 80 has a cylindrical structure.
  • the bracket 80 includes two radially split first half cylinders 81 and second half cylinders 811.
  • the space enclosed between the first half cylinders 81 and the second half cylinders 811 is a bearing bracket. 812.
  • the first half cylinder 81 is engaged with the second half cylinder 811 .
  • the first half cylinder 81 is located below the second half cylinder 811, one side of the first half cylinder 81 has a semi-open rotation groove 813, and the opposite side is provided with a limit tooth 814, the second half cylinder 811
  • One side is provided with a fixed shaft 815 matching with the rotation slot 813
  • the opposite side is provided with an engaging block 816 matched with a stop tooth 814 .
  • the limit tooth 814 protrudes from the outer side wall of the first half cylinder 81; the engaging block 816 has a guide surface 818 and a locking surface 819, and the limit tooth 814 passes over the engaging block 816 by the guide surface 818 and locks with it. Face 819 offsets the limit.
  • the side wall of the second half cylinder 811 has an operating ear 817 , and the engaging block 816 is located at the operating ear 817 , and the operating ear 817 can be deformed when the engaging block 816 passes over the limit tooth 814 .
  • the operating ear 817 protrudes from the second half cylinder 811 and smoothly transitions with the second half cylinder 811 .
  • the side of the first half cylinder 81 facing the housing 10 is also provided with a bonding portion 83, the bonding portion 83 is provided with a plurality of clamping blocks 831, and the housing 10 is provided with a plurality of clamping grooves 832 matched with each clamping block 831 .
  • the number of clamping blocks 831 is two, and the two clamping blocks 831 are arranged on the fitting part 83 and are located on both radial sides of the instrument channel 11; correspondingly, the number of clamping slots 832 is two, two The slots 832 are located in the casing 10 , and the openings of the two slots 832 have different orientations.
  • the fitting portion 83 is fan-shaped, and the central angle corresponding to the fitting portion 83 is 120°-180°, and the fitting portion 83 is located in the lower half of the instrument channel 11 .
  • the housing 10 has an installation area 17 around the instrument channel 11 , the installation area 17 is recessed, and when the fitting part 83 is placed in the installation area 17 , the outer surface of the fitting part 83 is flush with the outer surface of the housing 10 .
  • the bracket 80 also includes a transition section 84 fixedly connected between the first half cylinder 81 and the fitting part 83.
  • the passage in the transition section 84 is from the first half cylinder 81 to the housing 10. gradually increase to form a large mouth end and a small mouth end at both ends of the transition section 84 .
  • the small opening end of the transition section 84 transitions smoothly with the first half cylinder 81 , and the large opening end transitions smoothly with the bonding portion 83 .
  • the transition section 84 is semi-cylindrical, and the section of the transition section 84 along the radial direction of the instrument channel 11 is U-shaped.
  • the top of the transition section 84 is open when the crimping device 100 is in use. Wherein, the top surface of the transition section 84 is substantially flush with the top surface of the first half cylinder 81 .
  • the bearing bracket 812 is provided with an elastic liner 82 , the elastic liner 82 is installed on the inner wall of the bearing bracket 812 , and the elastic liner 82 can increase the friction between the pipe fittings.
  • the elastic gasket 82 is made of silicone.
  • the inner wall of the bearing bracket 812 may also be made of silicone material, and in this case, the arrangement of the elastic gasket 82 may be omitted.
  • the elastic pad 82 has a cylindrical structure, and the side wall of the elastic pad 82 is in close contact with the inner wall of the bearing bracket 812 .
  • the elastic liner 82 includes two radially split unit pads, and a passage for the pipe body to pass is formed between the two unit pads.
  • the crimping device 100 also includes a base 90, the base 90 has a mounting groove 911, and the outer wall of the housing 10 has a fixing part 18, and the fixing part 18 can extend into into the installation groove 911 to fix the casing 10 on the base 90 .
  • the base 90 is roughly plate-shaped, and the middle part of the base 90 has a boss 91 protruding upwards, and the mounting groove 911 is located on the boss 91 .
  • the top surface of the installation groove 911 is open to the end surface of the boss 91 , when the fixing part 18 is placed in the installation groove 911 , the end surface of the boss 91 is in close contact with the side surface of the housing 10 .
  • the fixing portion 18 is substantially cylindrical.
  • the fixing portion 18 has an axial direction in space.
  • One axial end of the fixing portion 18 is connected to the housing 10 , and the other end extends toward the base 90 and is open.
  • a positioning component 92 is provided between the base 90 and the housing 10 , so that the fixing portion 18 and the installation groove 911 have a unique matching relationship in the circumferential direction, and the positioning component 92 can determine the installation position between the base 90 and the housing 10 .
  • the positioning assembly 92 includes a fool-proof rib 921 and a fool-proof groove 922 matched with the fool-proof rib 921, and the fool-proof rib 921 is arranged in both the groove wall of the installation groove 911 and the side wall of the fixing part 18 One of them, the foolproof groove 922 is defined in the other of the groove wall of the installation groove 911 and the side wall of the fixing portion 18 .
  • the only matching relationship can be understood as: the fixing part 18 and the installation groove 911 have only a unique position to match the fixing part 18 and the installation groove 911 during 360 degrees of rotation.
  • the fool-proof groove 922 is disposed on the sidewall of the fixing portion 18 and extends along the axial direction of the fixing portion 18 , and the bottom of the fool-proof groove 922 is open.
  • the bottom of the fool-proof groove 922 has a flared opening 923 for guiding the fool-proof rib 921 to enter.
  • the fixing part 18 has a snap tongue 181 , and the groove wall of the installation groove 911 is provided with a locking groove 912 matching with the snap tongue 181 .
  • Each tab 181 is connected to the bottom of the fixing portion 18 through the cantilever 182 , and the locking slot 912 is located at the bottom wall of the installation slot 911 .
  • the cantilever 182 extends from the bottom of the fixing portion 18 to the base 90 , and the cantilever 182 can be deformed to adapt to the installation of the tab 181 .
  • an embodiment of the present application discloses a crimping device 9100 for compressing interventional instruments, including:
  • housing 910 has a through instrument channel 9101;
  • Each force application block 920 is distributed around the instrument channel 9101.
  • a plurality of force application blocks 920 have a relative gathering state (for example, each force application block in FIG. 38 The state in the force block 920) or the separated state (such as the state in each force block 920 in Figure 39), and the corresponding retractable instrument channel 9101 during the switching state;
  • the ring gear 930 , the ring gear 930 is rotatably matched with the casing 910 , and the ring gear 930 synchronously drives a plurality of force applying blocks 920 to switch states.
  • the interventional instrument 990 needs to be radially compressed with the crimping device 9100 before the operation to obtain a smaller radial size. Expand to functional size at desired location.
  • This embodiment also discloses a driving mechanism 950 , and the driving mechanism 950 includes a driving handle 951 indirectly or directly connected with the ring gear 930 .
  • the operator holds the driving handle 951 and pulls the driving handle 951 to make the ring gear 930 rotate relative to the casing 910 .
  • the plurality of force applying blocks 920 are in a separated state.
  • the ring gear 930 is rotated to synchronously drive the multiple force application blocks 920 to gradually switch from the separated state to the gathered state.
  • the multiple force application blocks The force block 920 shrinks the instrument channel 9101 , the inner wall of the instrument channel 9101 presses the interventional instrument 990 , and the inner wall of the instrument channel 9101 uniformly reduces the size of the interventional instrument 990 until a plurality of force applying blocks 920 are in a gathered state.
  • the synchronous movement of multiple force applying blocks 920 refers to: all force applying blocks 920 move at the same time, and all force applying blocks 920 move at the same speed.
  • the housing 910 is provided with correspondingly arranged windows 914, each window 914 is connected with the installation chamber 912, and an instrument channel 9101 is formed between the two windows 914; each force application block 920 is exposed to the Corresponding to window 914.
  • the force applying block 920 is driven by the ring gear 930 to reduce the number of components of the crimping device 9100, which can better control the cost of mold opening and the size of the parts, so that the assembly is simple and there is no cumbersome fixed assembly The effect of form.
  • the inner wall of the instrument channel 9101 is composed of force applying blocks 920 cooperating with each other. It should be explained that the gathered state and the separated state of multiple force applying blocks 920 are relative concepts, and the separated state corresponds to: each force applying block 920 is radially outward and has a tendency to move away from each other. When the plurality of force application blocks 920 are in the gathered state, for example, the inner diameter of the instrument channel 9101 is at a minimum value; when the plurality of force application blocks 920 move radially outward from the gathered state, the multiple force application blocks 920 are in the separated state.
  • the specific shape of the interventional instrument 990 is not strictly limited.
  • it may include a bracket 991 with a connecting ear 992 at one axial end of the bracket 991 .
  • the connecting ear 992 may have an expansion head at the end.
  • the stent 991 is a radially compressible or expandable structure, generally a mesh-like structure formed by cutting or weaving.
  • the interventional device 990 is an artificial heart valve.
  • the ring gear 930 synchronously drives a plurality of force application blocks 920 to switch between the gathered state and the separated state by way of meshing transmission.
  • the way of meshing transmission can improve the stability and precision of driving the plurality of force applying blocks 920 by the ring gear 930 .
  • the ring gear 930 synchronously drives the plurality of force application blocks 920 to switch states, please refer to the specific description of the transmission mechanism 940 below, which will not be expanded here.
  • the crimping device 9100 further includes a transmission mechanism 940 , and the transmission mechanism 940 is in transmission connection between the ring gear 930 and each force applying block 920 .
  • the transmission mechanism 940 is to transmit the output of the ring gear 930 to each force application block 920, so that each force application block 920 moves synchronously.
  • the existing technology can be adopted.
  • the transmission mechanism 940 at least guarantees the necessary mechanical strength and a good and precise matching method, so as to ensure the movement trajectory, speed and response time of each force applying block 920 .
  • the transmission mechanism 940 includes a rack 941 and a transmission gear 942, the rack 941 is arranged on each force application block 920, and the transmission gear 942 is rotatably installed in the housing 910, each Between the rack 941 and the ring gear 930 , one or more transmission gears 942 mesh with the ring gear 930 for transmission.
  • the transmission gear 942 synchronously drives the racks 941 to move, so as to drive the force applying block 920 to move.
  • the ring gear 930 , the transmission gear 942 and the rack 941 adopt a meshing transmission mode, so that the ring gear 930 can stably drive the force applying block 920 to move.
  • the transmission gear 942 has a rotation axis, which is the axis when the transmission gear 942 rotates around its own geometric center.
  • the ring gear 930 has a rotation axis, which is the axis when the ring gear 930 rotates around its own geometric center.
  • the transmission gear 942 includes multiple sets, and each set corresponds to a force applying block 920 .
  • the shapes of the transmission gears 942 are the same, which is convenient for mass production; during the installation process of the transmission gears 942 , there is no need to identify the type of the transmission gears 942 , which simplifies the assembly method of the transmission gears 942 .
  • the ring gear 930 includes an annular portion 931, and driving teeth distributed on the annular portion 931 and drivingly matched with the force applying block 920.
  • the arrangement of the driving teeth 932 The method is at least one of the following methods:
  • the driving teeth 932 are internal teeth distributed on the inner edge of the annular portion
  • the driving teeth 932 are external teeth distributed on the outer edge of the ring portion 931;
  • the driving teeth 932 are side teeth distributed on the axial end surface of the annular portion 931 .
  • the driving teeth 932 are internal teeth distributed on the inner edge of the annular portion 931 , and the following embodiments will be described on this basis.
  • the ring portion 931 defines a plurality of weight reducing grooves 933 along the circumferential direction of the ring gear 930 .
  • the ring gear 930 surrounds the periphery of a plurality of force applying blocks 920 . Similarly, the ring gear 930 also surrounds the periphery of each transmission gear 942 .
  • the rotation axis of the ring gear 930 and the extension direction of the instrument channel 9101 are parallel to each other.
  • the instrument channel 9101 has a central axis, and the central axis passes through the geometric center of the instrument channel 9101, and the position of the central axis of the instrument channel 9101 will not change during the process of retracting and retracting the instrument channel 9101 by each force applying block 920.
  • the central axis of the instrument channel 9101 is roughly consistent with the rotation axis of the ring gear 930 (in this embodiment, the central axis of the instrument channel 9101 is consistent with the rotation axis of the ring gear 930 ).
  • the rotation axis of the transmission gear 942 and the rotation axis of the ring gear 930 are parallel to each other.
  • the movement path of the rack 941 does not avoid the ring gear 930, the movement path of the force applying block 920 will be shortened, thereby affecting the retraction of the instrument channel 9101.
  • the rack 941 and the ring gear 930 are arranged in a misaligned manner.
  • two racks 941 fixed on the same force applying block 920 are arranged side by side. 930 sides.
  • the transmission gear 942 drives the force application block 920 to move by driving the two racks 941.
  • the arrangement of the two racks 941 can increase the force application points acting on the force application block 920 along the channel extension direction, so that the operation of the force application block 920 is stable.
  • the rack 941 and the force applying block 920 are integrally arranged so as to increase the structural strength between the rack 941 and the force applying block 920 and reduce the processing of the rack 941 and the force applying block 920 craft.
  • the rack 941 and the force applying block 920 may also be arranged separately, and the rack 941 may be fixed on the force applying block 920 by bonding or welding.
  • the number of driving teeth 932 is an integral multiple of the number of force applying blocks 920 , so that the phases of the ring gear 930 , the transmission gear 942 and the rack 941 are synchronized, thereby ensuring that the force applying blocks 920 move synchronously.
  • the number of teeth on the driving teeth 932 is 8 times the number of the force applying blocks 920 .
  • the number of driving teeth 932 is 96, and the number of force applying blocks 920 is 12.
  • the number of driving teeth 932 is 104, and the number of force applying blocks 920 is 8.
  • each set of transmission gears 942 includes a first gear 9421 and a second gear 9422 coaxially fixed with the first gear 9421, the first gear 9421 meshes with the ring gear 930, and the second gear 9422 is engaged with the rack 941 on the corresponding force applying block 920 .
  • each rack 941 faces away from a second gear 9422 of the force application block 920; when the force application block 920 is in the extreme position of the separated state, each rack 941 is adjacent to the inner wall of the housing 910 .
  • the force applying block 920 avoids the first gear 9421 and the second gear 9422 to prevent the first gear 9421 and the second gear 9422 from interfering with the movement of the force applying block 920 .
  • each set of transmission gears 942 includes two second gears 9422 .
  • the two second gears 9422 are respectively located on both sides of the first gear 9421 , and are rotationally matched with the casing 910 through a rotating shaft.
  • the second gear 9422 is at least partially located on both sides of the ring gear 930 , and this partial position is meshed with the corresponding rack 941 .
  • all the racks 941 are configured with the same second gear 9422 .
  • the axial length of the first gear 9421 is L1
  • the axial length of the first gear 9421 and the axial length of the second gear 9422 are adjusted according to: the pitch circle diameter of the first gear 9421 , the pitch circle diameter of the second gear 9422 and the circumferential length of the ring gear 930 .
  • each force-applying block 920 is equipped with a transmission gear 942, when a plurality of transmission gears 942 are in the annular portion 931 of the ring gear 930, in order to avoid mutual interference between the transmission gears 942, the reference circle diameter of the transmission gears 942
  • the diameter of the pitch circle of the first gear 9421 is D1
  • the diameter of the pitch circle of the second gear 9422 is D2
  • D1:D2 1:(0.3-0.7).
  • D1:D2 1:(0.4 ⁇ 0.6).
  • the transmission ratio range between the first gear 9421 and the ring gear 930 is 1: (5-15 ); the range of transmission ratio between the second gear 9422 and the ring gear 930 is 1:(5-15).
  • the number of teeth of the first gear 9421 and the number of teeth of the second gear 9422 are both 10; the number of teeth of the ring gear 930 is 96, and the transmission ratio of the first gear 9421 and the ring gear 930 is 1:9.6; the second gear 9422 and The transmission ratio of the ring gear 930 is 1:9.6.
  • the number of teeth of the first gear 9421 and the number of teeth of the second gear 9422 are both 12; the number of teeth of the ring gear 930 is 104, and the transmission ratio of the first gear 9421 and the ring gear 30 is 3:26; the second gear 9422 and the ring gear The 930 has a gear ratio of 3:26.
  • the crimping device 9100 further includes a driving mechanism 950 for driving the ring gear 930 to rotate.
  • the driving mechanism 950 is mainly to drive the ring gear 930 to rotate along the central direction of the instrument channel 9101. In order to realize its basic functions, motors, air cylinders, hydraulic cylinders and even manual driving components can be selected in the prior art. When the driving mechanism 950 directly outputs When the motion mode of the ring gear 930 is inconsistent with that of the ring gear 930, appropriate transmission components can be used to switch and transmit the motion mode.
  • the specific structure of the driving handle 951 referring to one of the embodiments, the driving handle 951 is a rod-shaped structure, and one end of the driving handle 951 is connected to the ring gear 930, The other end extends away from the instrument channel 9101 .
  • the casing 910 is provided with an operation window 911 , at least a part of the ring gear 930 is exposed to the operation window 911 , and this part is connected to the driving handle 951 .
  • the operation window 911 is arranged opposite to the outer edge of the ring gear 930
  • the driving handle 951 is connected with the outer periphery of the ring gear 930, and extends away from the ring gear 930
  • the extension direction of the driving wrench extends radially along the instrument channel 9101, so as to facilitate The operator manipulates the drive handle 951 .
  • the connecting part 934 is mainly used for installing the driving handle 951.
  • the connecting part 934 can be a groove structure or a raised structure, and the driving handle 951 can be fixed on the connecting part 934 by bolts, pins, etc. .
  • the driving handle 951 includes a gripping portion 9511 and a snapping portion 9512, and the ring gear 930 is provided with a snapping groove 935 matched with the snapping portion 9512. The part 9512 is snapped into the slot 935 to fix the driving handle 951 .
  • the engaging portion 9512 is block-shaped, and the outer contour of the engaging portion 9512 is roughly consistent with the contour of the engaging groove 935 , so that the engaging portion 9512 fits tightly when placed in the engaging groove 935 .
  • at least one side of the slot 935 is open, so that the locking portion 9512 enters into the slot 935 .
  • the driving mechanism 950 further includes a shielding plate 952, and the shielding plate 952 is fixed to the ring gear 930 by clamping, bonding or bolts, etc.
  • the blocking plate 952 cooperates with the ring gear 930 to limit the opening size of the slot 935 facing away from the instrument channel 9101 .
  • the stroke of the driving handle 951 corresponds to an included angle of 30 degrees to 120 degrees, and the stroke of the driving handle 951 is determined according to the retractable degree of the driving channel.
  • the included angle between the centers of the circles corresponding to the travel of the driving handle 951 is 30 degrees to 60 degrees.
  • the angle between the center of the circle corresponding to the stroke of the driving handle 951 is 45 degrees.
  • the driving mechanism 950 includes an electric element that is drivingly connected with the ring gear 930 .
  • the electric part can automatically drive the ring gear 930 to rotate, so as to realize the automatic operation of the crimping device 9100 .
  • the electric element is installed on the casing 910 , and the driving ring gear 930 rotates relative to the casing 910 .
  • the motor is a motor.
  • the motor has an output shaft, and the output shaft is equipped with a driving gear.
  • the outer edge of the annular portion 931 or the axial end surface of the annular portion 931 is provided with driving teeth, the driving mechanism 950 also includes a driving gear meshed with the driving teeth, and the electric element drives the ring gear 930 through the driving gear.
  • the force application blocks 920 cooperate with each other to form the inner wall of the instrument channel 9101.
  • the force application blocks 920 are switched from the gathered state to the separated state, along the circumferential direction of the instrument channel 9101 , two adjacent force application blocks 920 always abut against each other.
  • the end of the force application block 920 facing the instrument channel 9101 has a bent portion 921 (roughly hook-shaped); along the circumference of the instrument channel 9101, In the direction, the bending portion 921 has a first edge surface 9211 on the outside and a second edge surface 9212 on the inside; The intersection is surrounded.
  • the rack 941 is connected to the end of the force application block 920 facing away from the bending part 921; along the extension direction of the instrument channel 9101, two opposite sides of the force application block 920 are respectively flush with the outer surface of the rack 941; along the instrument channel 9101 In the circumferential direction, two opposite sides of the force applying block 920 (excluding the bent portion 921 ) are flush with the outer surface of the rack 941 .
  • the first edge surface 9211 of one of the force applying blocks 920 and the other force applying block The second edge surface 9212 of 920 is in contact with each other.
  • the second edge surface 9212 shielding plate is divided into the first edge surface 9211, and the first edge surface 9211 is exposed to the instrument channel
  • the part of 9101 is the action surface; when the force applying block 920 switches from the gathered state to the separated state, the length of the action surface along the circumferential direction of the instrument channel 9101 increases gradually.
  • both the first edge surface 9211 and the second edge surface 9212 connect with other adjacent parts of the force applying block 920 through the arc-shaped transition surface 9213, so that the first edge surface 9211 and the second edge surface 9212 There is a smooth transition with other adjacent parts on the force applying block 920 .
  • the included angle between the first edge surface 9211 and the second edge surface 9212 along the circumference of the instrument channel 9101 is 30 degrees.
  • the angle between the moving direction of the force applying block 920 and the second edge is 105 degrees, and the included angle between the moving direction of the force applying block 920 and the first edge is 75 degrees.
  • the angle between the moving directions of two adjacent force applying blocks 920 is 30 degrees.
  • each force application block 920 is the same, which is convenient for mass production; during the installation process of the force application block 920 , there is no need to identify the type of the force application block 920 , which simplifies the assembly method of the force application block 920 .
  • the housing 910 is in the shape of a hollow disc
  • the instrument channel 9101 runs through the axis of the disc
  • the interior of the housing 910 is the installation chamber 912
  • the ring gear 930 and the force applying block 920 are both in the installation position.
  • the instrument channel 9101 is located at the center of the housing 910 .
  • the present application discloses a guide unit 913 , which is used to limit the movement direction of the force application block 920 .
  • the guide unit 913 is a guide rail arranged along a predetermined direction. There are no strict restrictions on the shape and structure of the guide rail. Components on the outer surface of the surface, such as baffles arranged in a predetermined direction, etc.
  • the force applying block 920 has a sliding seat corresponding to the shape of the guide unit 913.
  • the corresponding sliding seat can be a sliding sleeve sleeved on the guide rod.
  • the corresponding sliding seat can be a support block or a support bar embedded in the bar-shaped groove.
  • the present application discloses a guide unit 913, the guide unit 913 includes a guide groove 9132 and a guide block, the guide groove 9132 is opened in one of the housing 910 and the force applying block 920; the guide block is arranged on The other one of the housing 910 and the force applying block 920 is matched with the guide groove 9132 .
  • the guide groove 9132 can define the running path of the force applying block 920, so that the force applying block 920 can move along the preset path.
  • the guide groove 9132 is opened on the inner wall of the housing 910 , and the guide block is disposed on the force applying block 920 .
  • the number of guide units 913 is two sets, and each guide unit 913 is located at the extension of the force application block 920 along the instrument channel 9101. opposite sides of the direction.
  • the guide groove 9132 is formed by two guide plates 9131 fixed on the inner wall of the casing 910 , and the guide groove 9132 is formed between the two guide plates 9131 .
  • the guide plate 9131 and the housing 910 are integrally arranged to strengthen the connection strength between the guide plate 9131 and the housing 910 , and at the same time reduce the processing difficulty of the guide plate 9131 and the housing 910 .
  • the two guide plates 9131 are arranged in parallel, and along the circumferential direction of the instrument channel 9101, the two opposite sides of the guide block are respectively attached to the inner walls of the guide groove 9132, so as to prevent the force applying block 920 from moving along the instrument channel 9101. Circumferential shaking occurs.
  • the guide block and the force applying block 920 are integrally arranged, and the guide block is part of the structure of the force applying block 920, which can strengthen the connection strength between the guide plate 9131 and the housing 910, and can also lower the guide plate 9131. Difficulty in processing the housing 910 .
  • the guide block and the force applying block 920 are arranged as separate bodies, and the guide block is fixed on the casing 910 by means of welding or bonding.
  • the opening of the guide groove 9132 faces the force applying block 920, and the opening has a flaring, which can guide the guide block to enter the guide groove 9132 Inside.
  • the structure of the second gear 9422 is located in the guide groove 9132 .
  • the guide groove 9132 is partially expanded to form an avoidance area 9133 for avoiding the second gear 9422; the addendum circle of the second gear 9422 is smaller than the width of the guide groove 9132 At this time, part of the structure of the second gear 9422 can be directly placed in the guide groove 9132 .
  • the crimping device 9100 further includes a transmission mechanism 940 , the transmission mechanism 940 is located in the installation chamber 912 and is in transmission connection between the ring gear 930 and each of the force applying blocks 920 .
  • the crimping device 9100 further includes a driving mechanism 950 for driving the ring gear 930 to rotate.
  • the driving mechanism 950 is completely inside the installation chamber 912 , or at least a part of the driving mechanism 950 is outside the installation chamber 912 .
  • the housing 910 is a split fastening structure, and the split fastening structure has at least two parts, and each part is arranged along the axial direction of the housing 910 .
  • Each fastening part includes a main body 915 with an opening and a cover plate 916 fastened to the opening of the main body 915.
  • the main body 915 has a cavity, and the ring gear 930, each force applying block 920 and each transmission mechanism 940 are located in the cavity.
  • the channel 9101 passes through the cover plate 916 and the body 915 in sequence.
  • the crimping device 9100 further includes a base 960 , and the housing 910 is detachably mounted on the base 960 .
  • the crimping device 9100 is fixed on the supporting platform through the base 960 .
  • the crimping device 9100 has a bottom surface (for example, A in FIG. 52 ) matched with the supporting table, and a top surface (for example, B in FIG. 52 ) opposite to the bottom surface. Under the premise of no special instructions, the bottom surface of the crimping device 9100 should be understood as the bottom surface of the base 960. Since the crimping device 9100 can be placed at various angles, at different placement angles, the vertically downward side may be the A side or It may not be side A, so the bottom side in this application does not refer to the side facing down in actual use.
  • the crimping device 9100 further includes a clamping structure 961 , and the housing 910 is detachably mounted on the base 960 through the clamping structure 961 .
  • the clamping structure 961 is to fix the housing 910 on the base 960, and at the same time facilitate the disassembly of the housing 910 relative to the base 960.
  • various clamping methods in the prior art can be adopted. For example: nuts and bolts, bonding, etc.
  • the present application discloses a clamping structure 961.
  • the clamping structure 961 includes a tab 9611 and a slot 9612 matched with the tab 9611.
  • the tab 9611 is arranged in both the base 960 and the housing 910. One; the slot 9612 is opened in the other of the base 960 and the casing 910 .
  • the housing 910 is installed at the predetermined position of the base 960, the tab 9611 and the slot 9612 are snapped and fixed to fix the housing 910 on the base 960; when the housing 910 is disassembled from the base 960, only the tab 9611
  • the casing 910 can be disassembled from the base 960 by separating from the slot 9612 .
  • the base 960 has a mounting groove 962 matched with the housing 910 , and the engaging structure 961 is located between the groove wall of the mounting groove 962 and the housing 910 .
  • the installation groove 962 is open to the bottom surface of the base 960, and the housing 910 enters through the opening of the installation groove 962 until the tongue 9611 and the groove 9612 are engaged and fixed with each other.
  • the two axial ends of the housing 910 are respectively attached to the two opposite sides corresponding to the installation groove 962; the bottom wall of the installation groove 962 is in contact with the housing 910 (In this embodiment, the bottom wall of the installation groove 962 is arc-shaped to match the housing 910).
  • the tab 9611 is integrally formed with the inner wall of the installation groove 962 to strengthen the connection strength between the tab 9611 and the housing 910 and reduce the processing technology between the tab 9611 and the housing 910 .
  • the tab 9611 and/or the slot 9612 has a guide slope, and the guide slope can guide the tab 9611 to enter the slot 9612 .
  • the housing 910 there are at least two sets of snapping structures 961 , and the two sets of snapping structures 961 are respectively located on opposite sides of the shell 910 in the axial direction. In other embodiments, on the same side of the housing 910 , multiple sets of locking structures 961 are also provided.
  • the lowest point and the highest point of the stroke of the driving handle 951 are located on the same side of the longitudinal section of the housing 910 (as shown in X in Figure 52 ), and the longitudinal section is on the same side as the bottom surface of the base 960. perpendicular to and passing through the axis of the casing 910 .
  • the central angle corresponding to the highest point of the stroke of the driving wrench and the highest point of the casing 910 is 40 degrees to 60 degrees.
  • the central angle corresponding to the highest point of the stroke of the driving wrench and the highest point of the casing 910 is 40 degrees.
  • the crimping device 9100 also includes a limiting component 970, and the limiting component 970 directly or indirectly interferes with at least one of the following: ring gear 930; force applying block 920; transmission mechanism 940; driving mechanism 950 .
  • the limiting component 970 is mainly used to limit the retracted state of each force applying block 920 , so the shape and specific structure of the limiting component 970 are not strictly limited.
  • lock pins, frame structures or solid parts can be used.
  • the general principle is that they should at least have sufficient mechanical strength and ensure a firm connection with the above components.
  • the specific setting of the limiting component 970 please refer to the specific description of the limiting component 970 below, which will not be expanded here.
  • the compressed interventional instrument 990 needs to be loaded into the tube.
  • FIG. body 910 or base 960 In order to support the tube, refer to FIG. body 910 or base 960, and has a support position corresponding to the position of the instrument channel 9101.
  • the channel in the tube is arranged opposite to the instrument channel, so that the interventional instrument 990 can enter the channel in the tube.
  • the bracket 980 For the specific setting of the bracket 980, please refer to the specific description of the bracket 980 below, which will not be expanded here.
  • crimping device 9100 including:
  • housing 910 has a through instrument channel 9101;
  • Each force application block 920 is distributed around the instrument channel 9101.
  • a plurality of force application blocks 920 have a relative gathering state (for example, each force application block in FIG. 38 The state in the force block 920) or the separated state (such as the state in each force block 920 in Figure 39), and the corresponding retractable instrument channel 9101 during the switching state;
  • the driving handle 951 is linked with the force applying block 920 to synchronously drive a plurality of force applying blocks 920 to switch states;
  • the limiting component 970 includes a fixing part 971 connected to the housing 910, and an adjusting part 972 that movably cooperates with the fixing part 971.
  • the adjusting part 972 is limited against the driving handle 951 moved to the limit position, and corresponds to the force applying block 920 the gathering state of .
  • the plurality of force applying blocks 920 are in a separated state.
  • the driving handle 951 drives the multiple force applying blocks 920 to gradually switch from the separated state to the gathered state.
  • the multiple force applying blocks 920 will Shrink the instrument channel 9101, the inner wall of the instrument channel 9101 squeezes the interventional instrument 990, and the inner wall of the instrument channel 9101 evenly reduces the size of the interventional instrument 990 until the driving handle 951 is in contact with the adjustment part 972.
  • the crimping device 9100 is completed for the interventional instrument 990 compression.
  • the gathering state of the force applying block 920 needs to be adjusted, the stroke of the driving handle 951 will change, and at this time, the position between the adjusting part 972 and the fixing part 971 can be adjusted.
  • the crimping device 9100 further includes a base 960 , and the housing 910 is detachably mounted on the base 960 .
  • the fixing portion 971 of the limiting component 970 is mounted on the base 960 .
  • the crimping device 9100 is fixed on the supporting platform through the base 960 .
  • the crimping device 9100 has a bottom surface (for example, A in FIG. 52 ) matched with the supporting table, and a top surface (for example, B in FIG. 52 ) opposite to the bottom surface.
  • the adjustment path of the limiting component 970 When the adjustment path of the limiting component 970 is not perpendicular to the bottom surface of the base 960, the force exerted by the driving handle 951 on the limiting component 970 will fall outside the connection position between the limiting component 970 and the base 960, thereby increasing the limit.
  • the bottom surface of the base 960 is the support surface in the use state, and the adjustment movement path of the limiting component 970 is in the same shape as the support surface. vertical set.
  • the limit part 970 is made of a rod, and the rod can reduce the weight and other reasons, and the pipe can be used, but no matter whether the pipe or the solid rod, it is to play a supporting role, so the rod in this article is not strictly limited to solid or solid.
  • the hollow structure can be a straight rod or partially curved according to its spatial direction, and the cross-sectional shape is not strictly limited.
  • the limiting component 970 has a length direction, and the length of the limiting component 970 along its own length direction is adjustable. So that the limit part 970 can be quickly adjusted in place.
  • the fixing part 971 and the adjusting part 972 are inserted into each other and can be slidably matched.
  • the fixing part 971 can be plugged into the inside of the adjusting part 972 , or the adjusting part 972 can be plugged into the inside of the fixing part 971 , so as to reduce the length of the limiting part 970 in the radial direction.
  • one is a tubular structure, and the other is passed through the lumen of the tubular structure.
  • the tubular structure has its own inner cavity.
  • the tubular structure not only has a certain supporting strength, but also has the effect of reducing weight.
  • the fixing part 971 is provided with a limiting groove along its own axis, and the adjusting part 972 forms a limiting part matched with the limiting groove through its own local indentation;
  • both the inner cavity of the fixing part 971 and the radial section of the adjusting part 972 are non-circular.
  • the limiting component 970 further includes a locking mechanism 973 for maintaining the relative positions of the fixing part 971 and the adjusting part 972 .
  • the locking mechanism 973 is to fix the adjusting part 972 on the fixing part 971, and at the same time enable the adjusting part 972 to move along the fixing part 971, and various locking methods in the prior art can be adopted.
  • the locking mechanism 973 includes a screw connection, and the screw connection is arranged on one of the fixing part 971 and the adjustment part 972, and can be connected with the other. One abuts against each other to maintain the relative position of the fixing portion 971 and the adjusting portion 972 .
  • the screw connection includes a stud 9731 and an operating part 9732 fixed at the end of the stud 9731.
  • the fixed part 971 is provided with a threaded hole 9733 communicating with the interior of the fixed part 971.
  • the stud 9731 is screwed into the threaded hole 9733, and
  • the stud 9731 is manipulated by the manipulation part 9732 .
  • the adjustment part 972 moves to a preset setting, the operator holds and rotates the operation part 9732 to screw the stud 9731 into the threaded hole 9733 until the end of the stud 9731 facing away from the operation part 9732 abuts against the adjustment part 972 .
  • one end of the adjustment part 972 has a supporting groove 9721 , and the driving handle 951 is abutted against and limited by the supporting groove 9721 .
  • the receiving groove 9721 can increase the contact surface between the adjustment part 972 and the driving handle 951 .
  • the supporting groove 9721 is roughly U-shaped, and the opening of the U-shaped is facing the driving handle 951 .
  • the driving handle 951 is linked with the force application block 920 through the following components:
  • the ring gear 930, the ring gear 930 and the casing 910 rotate and cooperate, the ring gear 930 synchronously drives a plurality of force applying blocks 920 to switch states, and the driving handle 951 is indirectly or directly connected to the ring gear 930;
  • the rack 941 is fixed on each force applying block 920;
  • the transmission gear 942 is rotatably installed in the housing 910 , and each rack 941 and the ring gear 930 are engaged and driven by one or more transmission gears 942 .
  • the ring gear 930 synchronously drives the plurality of force applying blocks 920 to switch between the gathered state and the separated state by way of meshing transmission.
  • the way of meshing transmission can improve the stability and precision of driving the plurality of force applying blocks 920 by the ring gear 930 .
  • the transmission gear 942 synchronously drives the rack 941 to move, so as to drive the force applying block 920 to move.
  • the ring gear 930 , the transmission gear 942 and the rack 941 adopt a meshing transmission mode, so that the ring gear 930 can stably drive the force applying block 920 to move.
  • the transmission gear 942 includes multiple sets, and each set corresponds to a force applying block 920 .
  • the shapes of the transmission gears 942 are the same, which is convenient for mass production; during the installation process of the transmission gears 942 , there is no need to identify the type of the transmission gears 942 , which simplifies the assembly method of the transmission gears 942 .
  • crimping device 9100 including:
  • housing 910 has a through instrument channel 9101;
  • Each force application block 920 is distributed around the instrument channel 9101.
  • the multiple force application blocks 920 have a relative gathered state and a separated state, and are switched Corresponding retractable instrument channel 9101 in the state process;
  • Bracket 980 The bracket 980 includes a supporting part 983 and a supporting part 984 connected to each other.
  • the supporting part 983 cooperates with the housing 910 .
  • the supporting part 984 has a supporting position corresponding to the position of the instrument channel 9101 .
  • the interventional instrument 990 When the interventional instrument 990 does not enter the instrument channel 9101, the plurality of force applying blocks 920 are in a separated state. After the interventional instrument 990 enters the instrument channel 9101, it drives a plurality of force application blocks 920 to gradually switch from the separated state to the gathered state. During the switching process of the multiple force application blocks 920, the instrument channel 9101 will be shrunk, and the inner wall of the instrument channel 9101 will be squeezed. The interventional instrument 990 is pressed, and the inner wall of the instrument channel 9101 uniformly reduces the size of the interventional instrument 990 until the compression of the interventional instrument 990 by the crimping device 9100 is completed.
  • the crimping device 9100 After the crimping device 9100 finishes compressing the interventional instrument 990 , it drives the plurality of force applying blocks 920 to switch from the gathered state to the separated state, and then moves the interventional instrument 990 into the tube on the bracket 980 .
  • the channel in the tube When the tube is placed at the supporting position, the channel in the tube is arranged opposite to the instrument channel, so that the interventional instrument 990 can enter the channel in the tube.
  • the crimping device 9100 further includes a base 960 , and the housing 910 is detachably mounted on the base 960 . Wherein, the supporting part 983 can also be inserted into the base 960 .
  • the crimping device 9100 is fixed on the supporting platform through the base 960 .
  • the crimping device 9100 has a bottom surface (for example, A in FIG. 52 ) matched with the supporting table, and a top surface (for example, B in FIG. 52 ) opposite to the bottom surface.
  • a slot extending along a straight line is provided on the outer wall of the housing 910, and the supporting portion 983 is slidably fitted in the slot, so that the moving direction of the supporting portion 983 after being inserted into the slot is arranged in a straight line.
  • one end of the slot is used as an inlet end and is adjacent to the instrument channel 9101 , and the other end of the slot extends toward the base 960 .
  • the extension direction of the slot is the radial direction of the instrument channel, and the entrance of the slot is aligned with the instrument channel 9101 .
  • the slot is located below the instrument channel 9101 .
  • the supporting portion 983 and the supporting portion 984 are integrally arranged to enhance the structural strength of the supporting portion 983 and the supporting portion 984 and reduce the difficulty of the process of the bracket 980 .
  • the supporting portion 983 and the supporting portion 984 may also be arranged as separate bodies, and the supporting portion 983 and the supporting portion 984 may be fixed by bolts or welding.
  • the supporting position extends along the direction of the instrument channel 9101 and forms a bearing bracket 981 docked with the instrument channel 9101 .
  • the top of the bracket 980 is a half-tube structure with a U-shaped cross section, the top surface of the half-tube structure is open, and the inside As a bearing bracket 981.
  • an elastic liner 982 is provided inside the bearing bracket 981 , and the elastic liner 982 is installed on the inner wall of the bearing bracket 981 .
  • the elastic pad 982 is made of silica gel.
  • the inner wall of the bearing bracket 981 can also be made of silicone material, and in this case, the arrangement of the elastic gasket 982 can be omitted.
  • one of them is provided with a groove 9821
  • the other is provided with a locking block 9811 matching with the groove 9821 .
  • the support portion 983 is plate-shaped and leans against the outer wall of the casing 910 .
  • the supporting portion 983 has a lengthwise direction, one end of the supporting portion 983 along the lengthwise direction fits with the slot, and the other end is connected with the supporting portion 984 .
  • a reinforcing rib is fixed between the bottom of the semi-cylindrical structure and the supporting part.
  • the reinforcing rib is in the shape of a plate, and the extension direction of the half-tube structure is perpendicular to the extending direction of the support part. The structure and the support part are fit and fixed.
  • the crimping device 9100 also includes:
  • the ring gear 930, the ring gear 930 and the housing 910 rotate and cooperate, and the ring gear 930 synchronously drives a plurality of force applying blocks 920 to switch states;
  • the rack 941 is fixed on each force applying block 920;
  • the transmission gear 942 is rotatably installed in the housing 910 , and each rack 941 and the ring gear 930 are engaged and driven by one or more transmission gears 942 .
  • the ring gear 930 synchronously drives the plurality of force applying blocks 920 to switch between the gathered state and the separated state by way of meshing transmission.
  • the way of meshing transmission can improve the stability and precision of driving the plurality of force applying blocks 920 by the ring gear 930 .
  • the transmission gear 942 synchronously drives the rack 941 to move, so as to drive the force applying block 920 to move.
  • the ring gear 930 , the transmission gear 942 and the rack 941 adopt a meshing transmission mode, so that the ring gear 930 can stably drive the force applying block 920 to move.
  • the transmission gear 942 includes multiple sets, and each set corresponds to a force applying block 920 .
  • the shapes of the transmission gears 942 are the same, which is convenient for mass production; during the installation process of the transmission gears 942 , there is no need to identify the type of the transmission gears 942 , which simplifies the assembly method of the transmission gears 942 .
  • crimping device 9100 including:
  • housing 910 has a through instrument channel 9101;
  • Each force application block 920 is distributed around the instrument channel 9101.
  • the multiple force application blocks 920 have a relative gathered state and a separated state, and are switched Corresponding retractable instrument channel 9101 in the state process;
  • Bracket 980 is detachably mounted on the housing 910 in a magnetic attraction manner, and has a support position corresponding to the position of the instrument channel 9101 .
  • one of the bracket 980 and the housing 910 is provided with a magnetic attraction 985 , and the other is provided with a fitting 986 magnetically coupled with the magnetic attraction 985 .
  • One end of the bracket 980 facing the housing 910 is attached to the housing 910 , and the magnetic attraction member 985 is disposed on a joint surface of the bracket 980 and the housing 910 .
  • the matching part 986 is made of ferromagnetic material.
  • the bracket 980 fixed on the housing 910 more firmly, in this embodiment, there are multiple magnetic pieces 985, and at least two magnetic pieces 985 are arranged in a misaligned circumferential direction of the instrument channel. Further, in this embodiment, the magnetic attractors 985 are sequentially arranged along the circumferential direction of the instrument channel.
  • the end faces of the bracket 980 and the casing 910 have installation positions, and the magnetic attraction part 985 and the matching part 986 are fixed at the corresponding installation positions.
  • the installation position is a groove structure, and the magnetic attraction part 985 or the matching part 986 is embedded in the corresponding groove structure, so that the bracket 980 can The end face abuts against the outer surface of the housing 910 .
  • the supporting position extends along the direction of the instrument channel 9101 and forms a bearing bracket 981 docked with the instrument channel 9101 .
  • the magnetic attractor 985 is installed on the bracket 980
  • the matching member 986 is installed on the housing 910
  • the magnetic attractor 985 protrudes from the end surface of the bracket 980
  • the engaging member 986 is embedded in the bottom of the groove structure.
  • bracket 980 includes:
  • the bonding part 987 is attached to and fixed with the housing 910 in a magnetic attraction manner, and the bonding part 987 is located at the periphery of the instrument channel 9101 and extends along the circumferential direction of the instrument channel 9101;
  • the flaring section 988 fixedly connected between the semi-cylindrical structure 989 and the fitting part 987, along the axial direction of the instrument channel, the small opening end of the flaring section 988 is connected to the middle part of the semi-cylindrical structure 989, and the large opening end is connected to the fitting part 987 .
  • the half-tube structure 989 has a U-shaped cross section along the radial direction of the instrument channel; when the crimping device 9100 is in use, the U-shaped opening is set upward, so that the top surface of the half-tube structure 989 is open.
  • the installation position is located on the side of the fitting part 987 facing the housing 910.
  • the size of the fitting part 987 is greater than the wall thickness of the semi-cylindrical structure 989 and the wall thickness of the flaring section 988, so as to increase the support.
  • the central angle corresponding to the bonding portion 987 is 120°-180°, and the bonding portion 987 is located in the lower half of the instrument channel 9101 .
  • the bonding part 987 is plate-shaped, and the bonding part 987 and the half-tube structure 989 are integrally arranged.
  • the flared section 988 is semi-cylindrical, and the section along the radial direction of the instrument channel is U-shaped.
  • the top of the flared section 988 is open when the crimping device 9100 is in use.
  • the channel in the flaring section 988 gradually increases from the middle of the half-tube structure 989 to the housing 910 to form a large-mouth end and a small-mouth end at both ends of the flared section 988 .
  • the small mouth end of the flaring section 988 is arranged circumferentially around the semi-cylindrical structure 989 and is connected to the outer wall of the semi-cylindrical structure. There is a certain gap between the large mouth end of the flaring section 988 and the semi-cylindrical structure 989 .
  • the top surface of the semi-cylindrical structure 989 is substantially flush with the top surface of the flaring section 988 , so that part of the structure of the semi-cylindrical structure 989 is located in the flaring section 988 .
  • the semi-cylindrical structure 989 is located in the middle of the instrument channel 9101 , and there is an avoidance gap between it and the fitting part 987 .
  • an elastic liner 982 is provided inside the bearing bracket 981 , and the elastic liner 982 is installed on the inner wall of the bearing bracket 981 .
  • the elastic pad 982 is made of silica gel.
  • the inner wall of the bearing bracket 981 can also be made of silicone material, and in this case, the arrangement of the elastic gasket 982 can be omitted.
  • the elastic liner 982 is installed in the bearing bracket 981 by buckling, bonding or fasteners, so as to facilitate elastic Assembly and disassembly of liner 982 and bearing bracket 981.
  • one of them is provided with a groove 9821
  • the other is provided with a locking block 9811 matching with the groove 9821 .
  • there are multiple clamping blocks 9811 and grooves 9821 and each clamping block 9811 is clamped in the corresponding groove 9821 respectively.
  • the crimping device 9100 also includes:
  • the ring gear 930, the ring gear 930 and the housing 910 rotate and cooperate, and the ring gear 930 synchronously drives a plurality of force applying blocks 920 to switch states;
  • the rack 941 is fixed on each force applying block 920;
  • the transmission gear 942 is rotatably installed in the housing 910 , and each rack 941 and the ring gear 930 are engaged and driven by one or more transmission gears 942 .
  • the ring gear 930 synchronously drives the plurality of force applying blocks 920 to switch between the gathered state and the separated state by way of meshing transmission.
  • the way of meshing transmission can improve the stability and precision of driving the plurality of force applying blocks 920 by the ring gear 930 .
  • the transmission gear 942 synchronously drives the rack 941 to move, so as to drive the force applying block 920 to move.
  • the ring gear 930 , the transmission gear 942 and the rack 941 adopt a meshing transmission mode, so that the ring gear 930 can stably drive the force applying block 920 to move.
  • the transmission gear 942 includes multiple sets, and each set corresponds to a force applying block 920 .
  • the shapes of the transmission gears 942 are the same, which is convenient for mass production; during the installation process of the transmission gears 942 , there is no need to identify the type of the transmission gears 942 , which simplifies the assembly method of the transmission gears 942 .
  • an embodiment of the present application also provides a loading method of an interventional instrument 990, including:
  • Rotate the ring gear 930, and the ring gear 930 drives a plurality of force applying blocks 920 to move synchronously to compress the interventional instrument 990;
  • the compressed interventional device 990 is transferred into the tube for loading the interventional device 990 .
  • the pipe fittings are pre-installed on the bracket 980, and each force application block 920 is in a separated state; after the interventional instrument 990 is placed in the instrument channel 9101, the driving handle 951 is pulled, and the driving handle 951 drives the ring gear 930 Rotate to drive a plurality of force application blocks 920 to switch to a folded state, at this time, a plurality of force application blocks 920 move synchronously to compress the interventional instrument 990 until the interventional instrument 990 is compressed in place. After the interventional instrument 990 is compressed in place, the interventional instrument 990 is pushed to transfer the compressed part of the interventional instrument 990 into the tube.
  • the tube is pre-positioned and aligned with the instrument channel 9101. The lumen of the tubing is aligned with the instrument channel 9101.
  • the specific shape of the interventional instrument 990 is not strictly limited.
  • it may include a bracket 991 with a connecting ear 992 at one axial end of the bracket 991 .
  • the connecting ear 992 may have an expansion head at the end.
  • the stent 991 is a radially compressible or expandable structure, generally a mesh-like structure formed by cutting or weaving.
  • the interventional device 990 is an artificial heart valve.
  • the interventional instrument 990 has an axial direction, and when the radial dimensions of the parts of the interventional instrument 990 along its own axial direction are different, referring to one of the embodiments, when the interventional instrument 990 is compressed, according to the radial dimensions of different positions of the interventional instrument 990, Step-by-step compression is used.
  • the interventional instrument 990 is divided into multiple sections according to different radial dimensions, and then each section of the interventional instrument 990 is separately compressed by the crimping device 9100 until the interventional instrument 990 can be loaded into the tube.
  • the interventional instrument 990 includes a first segment 993 and a second segment 994 along its axial direction, and the radial dimension of the first segment 993 is greater than that of the second segment 994 Size; the step-by-step compression method includes: inserting a mandrel through the interventional instrument 990 to compress the radial dimension of the first section 993 to be substantially equal to the radial dimension of the second section 994 .
  • the axis of the first segment 993 and the axis of the second segment 994 tend to coincide substantially.
  • the dry interventional instrument 990 Before compressing the interventional instrument 990, the dry interventional instrument 990 needs to be moistened.
  • the second section 994 of the interventional instrument 990 is clamped by the clamp, the first section 993 is placed in the instrument channel 9101, the clamp is pressed against the housing 910 to limit the position of the first section 993 in the instrument channel 9101, and then the interventional instrument 990 is adjusted , make the axis of the interventional instrument 990 collinear with the axis of the instrument channel 9101 , and finally compress the first section 993 .
  • the specific shape of the jig is not strictly limited, for example, the jig is in the shape of a cylinder, and the second segment 994 of the interventional instrument 990 is placed inside the jig.
  • the compressed interventional instrument 990 is disassembled from the fixture.
  • the step-by-step compression method also includes: piercing the mandrel in the interventional instrument, and then inserting the second The first segment 993 and the second segment 994 are compressed synchronously until the mandrel fits together.
  • a protective sheath is sheathed on the outside of the interventional instrument 990 , and the protective sheath can prevent the interventional instrument 990 from being damaged by the crimping device 9100 .
  • the specific shape of the mandrel is not strictly limited, for example, the mandrel is in the shape of a cylinder.
  • the compressed interventional device 990 is loaded into the delivery system 9103 .
  • the delivery system 9103 can be used to treat heart valves (eg, mitral valve, aortic valve, tricuspid valve, vena cava valve, pulmonary valve). This treatment may include, but is not limited to, valve replacement, valve repair, or other procedures that affect valve function.
  • heart valves eg, mitral valve, aortic valve, tricuspid valve, vena cava valve, pulmonary valve.
  • This treatment may include, but is not limited to, valve replacement, valve repair, or other procedures that affect valve function.
  • the delivery system 9103 includes two tubes arranged coaxially from the inside to the outside, and a control handle that drives the relative movement of the two tubes, and the distal ends of the tubes are used for mutual cooperation and intervention
  • the proximal end of each tube is connected to a control handle, and the relative movement of each tube is driven by a hydraulic method at the control handle.
  • hydraulically driving each pipe fitting at the control handle can realize the operation of the interventional device, such as releasing, cutting, rotating, grabbing or recovering, etc.
  • the entire hydraulic system is arranged at the proximal end, which is more convenient for on-site debugging or assembly Unexpected conditions are also easy to solve outside the body, but if a hydraulic mechanism is configured at the far end, more stringent requirements will be placed on the volume and safety of the equipment, and the form and direction of movement that can be adjusted are also limited due to equipment problems.
  • the two tubes are respectively the first tube 9104 and the second tube 9105 that slide and nest sequentially from inside to outside, the distal end of the first tube 9104 is used to place the interventional instrument 990, and the second tube 9105 is used to wrap or release the interventional instrument 990.
  • the farthest end of the first tube 9104 is a guide head 9106, and a mounting head 9107 is fixed adjacent to the proximal end of the guide head 9106.
  • the instrument 990 generally has a connecting ear 992 connected to the mounting head 9107 , and the connecting ear 992 cooperates with the mounting head 9107 to limit the axial position of the interventional instrument 990 during loading.
  • the first tube 9104 of the delivery system 9103 is passed through the interventional device 990 , the compressed interventional device 990 fits the first tube 9104 , and the compressed interventional device 990 is pushed to the second tube of the delivery system 9103 . inside the pipe fitting 9105.
  • the control handle drives the first tube 9104 to slide axially relative to the second tube 9105 Withdrawing, such that the interventional instrument 990 is placed within the second tube 9105 .
  • the interventional instrument 990 may be checked after a period of time (for example, 10 seconds) after compression.
  • the first tube 9104 and the second tube 9105 are commonly used plastic tubes or metal tubes in the field of interventional instruments 990 , such as cut hypotubes or metal braided tubes or mixed tubes of metal braided tubes and hypotubes.
  • the first pipe member 9104 and/or the second pipe member 9105 may also be a multi-layer composite pipe.

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Abstract

一种压缩介入器械(200)的压握器(100)及介入器械(200)的装载方法,压握器(100)包括:壳体(10),壳体(10)带有贯通的器械通道(11);施力块(20),施力块(20)有多个且活动安装在壳体(10)内,各施力块(20)绕器械通道(11)分布,多个施力块(20)具有相对的聚拢状态和分离状态,并在切换状态过程中相应的收放器械通道(11);齿圈(40),齿圈(40)与壳体(10)转动配合,齿圈(40)同步驱动多个施力块(20)切换状态。

Description

压缩介入器械的压握器及介入器械的装载方法 技术领域
本申请涉及医疗器械技术领域,特别是涉及一种压缩介入器械的压握器。
背景技术
介入器械为了便于在体内输送,手术前需要利用压握器进行径向压缩,以获得较小的径向尺寸,压缩后装载至输送系统,并以压缩状态送至体内治疗部位,最后在期望位置处扩张至功能尺寸。
现有技术中的压握器包括多个作用于介入器械的施力部件,各施力部件的相对运动,可对介入器械进行径向压缩,例如现有技术中公开的一种压握器中配置有多个作为施力部件的滑块,但由于受结构限制,各滑块的形状不同,在组装时存在对位繁琐,效率较低的问题。
发明内容
为了解决上述技术问题,本申请公开了压缩介入器械的压握器,包括:
壳体,所述壳体带有贯通的器械通道;
施力块,所述施力块有多个且活动安装在所述壳体内,各施力块绕所述器械通道分布,多个施力块具有相对的聚拢状态和分离状态,并在切换状态过程中相应的收放器械通道;
齿圈,所述齿圈与所述壳体转动配合,所述齿圈同步驱动多个施力块切换状态。
以下还提供了若干可选方式,但并不作为对上述总体方案的额外限定,仅仅是进一步的增补或优选,在没有技术或逻辑矛盾的前提下,各可选方式可单独针对上述总体方案进行组合,还可以是多个可选方式之间进行组合。可选的,所述齿圈采用啮合传动的方式同步驱动多个施力块在聚拢状态和分离状态之间切换。
可选的,所述压握器还包括传动机构,所述传动机构在所述齿圈和各施力块之间传动连接。
可选的,所述传动机构包括:
齿条,设置于各施力块;
传动齿轮,转动安装于所述壳体内,各齿条与所述齿圈之间通过一个或多个所述传动齿轮啮合传动。
可选的,所述齿圈的转动轴线与所述器械通道的延伸方向相互平行。
可选的,所述传动齿轮的转动轴线与所述齿圈的转动轴线相互平行。
可选的,所述齿圈包括环形部,以及分布在环形部上且与所述施力块传动配合的驱动齿,所述驱动齿的设置方式为以下方式中的至少一种:
所述驱动齿为分布在环形部内缘的内齿;
所述驱动齿为分布在环形部外缘的外齿;
所述驱动齿为分布在环形部轴向端面的侧齿。
可选的,所述驱动齿的数量是所述施力块的数量的整数倍。
可选的,所述驱动齿的数量是所述施力块的数量的8倍。
可选的,沿齿圈的周向,所述环形部开设有多个减重槽。
可选的,所述齿圈环绕在多个施力块的外围。
可选的,沿器械通道的延伸方向,所述齿条与所述齿圈呈错位设置。
可选的,同一施力块上所固定的齿条为并排布置的两根,沿器械通道的延伸方向,各齿条分别位于所述齿圈的两侧。
可选的,所述传动齿轮采用1~3级的齿轮传动,按照传动次序,其中首级与所述齿圈相啮合,末级与所述齿条相啮合。
可选的,所述传动齿轮包括多套,每套对应一施力块。
可选的,每套传动齿轮中包括第一齿轮以及与所述第一齿轮同轴固定设置的第二齿轮,所述第一齿轮与所述齿圈相啮合,第二齿轮与对应施力块上的齿条相啮合。
可选的,同一施力块上,针对每根齿条,分别配置一个第二齿轮,或所有齿条配置同一第二齿轮。
可选的,所述第一齿轮的分度圆直径为D1,所述第二齿轮的分度圆直径为D2,且满足D1:D2=1:(0.3~0.7)。
可选的,所述第一齿轮的轴向长度为L1,所述第二齿轮的轴向长度为L2,且满足,L1:L2=(3~6):1。
可选的,所述第一齿轮与所述齿圈的传动比范围为1:(5~15);
所述第二齿轮与所述齿圈的传动比范围为1:(5~15)。
可选的,所述第一齿轮与所述齿圈的传动比为1:9.6;
所述第二齿轮与所述齿圈的传动比为1:9.6。
可选的,所述第一齿轮与所述齿圈的传动比为3:26;
所述第二齿轮与所述齿圈的传动比为3:26。
可选的,所述齿条与所述施力块之间一体或分体设置。
可选的,所述介入器械为人工心脏瓣膜。
可选的,所述压握器还包括用以驱动所述齿圈转动的驱动机构。
可选的,所述驱动机构包括以下方式的至少一种:
方式A,所述驱动机构为与所述齿圈间接或直接连接的驱动把手;
方式B,所述驱动机构为与所述齿圈传动连接的电动件。
可选的,所述电动件安装于所述壳体,驱动所述齿圈相对于所述壳体转动。
可选的,所述电动件为电机。
可选的,所述壳体开设有操作窗,所述齿圈的至少一部分暴露于所述操作窗,且该部分与所述驱动把手连接。
可选的,所述齿圈的至少一部分为暴露于所述操作窗的连接部,所述驱动把手可拆卸的固定于所述连接部。
可选的,所述驱动把手的行程所对应的圆心夹角为30度~120度。
可选的,所述驱动把手的行程所对应的圆心夹角为30度~60度。
可选的,所述驱动把手的行程所对应的圆心夹角为40度。
可选的,所述驱动把手包括握持部与卡接部,所述齿圈开设有与所述卡接部相配合的卡槽。
可选的,所述驱动把手呈杆状结构,所述驱动把手的一端与所述齿圈连接,另一端朝远离器械通道的方向延伸。
可选的,所述施力块由聚拢状态切换至分离状态时,沿器械通道的周向,相邻两施力块之间始终相互抵靠。
可选的,所述施力块朝向所述器械通道的一端具有折弯部;
沿器械通道的周向,所述折弯部具有处于外侧的第一边缘面以及处在内侧的第二边缘面;
所述器械通道的内壁由各施力块的第一边缘面与第二边缘面的交汇处围成。
可选的,沿器械通道的周向,相邻两施力块中,其中一施力块的第一边缘面与另一施力块的第二边缘面相贴合。
可选的,沿器械通道的周向,相邻两施力块中,所述第二边缘面遮挡板分所述第一边缘面,所述第一边缘面暴露于所述器械通道的部分为作用面;
所述施力块由聚拢状态切换至分离状态时,所述作用面沿沿器械通道的周向的长度逐渐增加。
可选的,所述第一边缘面与所述第二边缘面均通过弧形过渡面与所述施力块上相邻的其他部位衔接。
可选的,针对同一施力块,所述第一边缘面与所述第二边缘面沿器械通道的周向的夹角为30度。
可选的,针对同一施力块,所述施力块的运动方向与所述第二边缘之间的夹角为105度,与所述第一边缘的夹角为75度。
可选的,沿器械通道的周向,相邻两施力块的运动方向之间的夹角为30度。
可选的,所述壳体为中空的圆盘状,所述器械通道贯通于所述圆盘状的轴线部位,所述壳体的内部为安装室,所述齿圈以及施力块均处在所述安装室内。
本申请还提供介入器械的装载方法,包括:
提供以上各实施例中的所述的压握器;
将介入器械放置在所述器械通道内;
旋转所述齿圈,所述齿圈驱动多个施力块同步运动压缩介入器械;
将压缩后的介入器械转移至用于装载介入器械的管件内。
可选的,所述管件预先定位,且位置与所述器械通道对正。
可选的,压缩介入器械时,根据介入器械不同位置的径向尺寸,采用逐级压缩方式。
可选的,所述介入器械沿自身的轴向包括第一段与第二段,所述第一段的径向尺寸大于第二段的径向尺寸;
所述逐级压缩方式包括:
向所述介入器械内穿设芯棒,将所述第一段的径向尺寸压缩至与所述第二段的径向尺寸大致相等;
再将所述第一段和所述第二段同步压缩至所述芯棒相贴合。
可选的,所述介入器械内穿设输送系统的第一管件,压缩所述介入器械至与所述第一管件相贴合,并将压缩后的所述介入器械推送至所述输送系统的第二管件内。
本申请公开的压握器通过齿圈驱动施力块运动,使压握器的零部件的数样减少,可以更好的控制开模成本以及零件尺寸,起到组装简单,无繁琐的固定装配形式的效果。
本申请还提供一种压缩介入器械的压握器,包括:
壳体,所述壳体呈中空设置,并带有贯通的器械通道;
多个施力块,各施力块活动安装于所述壳体内,并绕所述器械通道分布,多个施力块能够相对的聚拢和分离,并相应的收放器械通道;至少一施力块上带有指示标识,所述壳体开设有与所述指示标识位置相应的视窗。
本方案中多个施力块的结构特点以及驱动方式,既可以采用常规技术,还可以与本申请其他各实施例相结合,例如采用齿圈相应配置驱动机构,以同步驱动多个施力块。
可选的,所述指示标识与所述施力块为一体结构或分体固定,沿壳体轴向(即器械通道的延伸方向),所述指示标识位于所在施力块的一侧。
可选的,所述分体固定的方式为插接和/或粘结。
可选的,所述指示标识与所述施力块两者中,其中一者设置有插接部,另一者设置有与所述插接部相配合的插槽。
可选的,所述视窗为条形,且沿所述指示标识所在的施力块的运动方向延伸。
可选的,带有指示标识的施力块的运动方向与所述压握器的底面平行。
可选的,所述视窗镂空于所述壳体,且在镂空部位设置有透明盖板。
可选的,所述透明盖板扣合于所述壳体的镂空部位。
可选的,所述指示标识的端部伸出所述视窗形成指示部,所述指示部的宽度大于所述视窗的宽度。
可选的,所述壳体的具有环绕所述视窗的凹陷区,所述指示部置于所述凹陷区;
所述透明盖板扣合于所述凹陷区,并与所述壳体的周边部位等高。
可选的,所述指示标识至少具有两个,沿壳体轴向,至少两个指示标识分别位于所述壳体的两相对侧。
可选的,所述指示标识为两个,且固定于同一施力块。
可选的,所述指示部具有与所述壳体不同的颜色。
可选的,所述壳体和/或所述透明盖板上设有可与指示标识位移相对应的参照刻度。
本申请还提供一种压缩介入器械的压握器,包括:
壳体,所述壳体呈中空设置,并带有贯通的器械通道;
多个施力块,各施力块活动安装于所述壳体内,并绕所述器械通道分布,多个施力块能够相对的聚拢和分离,并相应的收放器械通道;
齿圈,所述齿圈转动安装于所述壳体内且处在所述器械通道的外围,所述齿圈传动连接于所述各施力块,并同步驱动多个施力块;
驱动轴,至少一部分处在所述壳体内并与所述齿圈联动,至少一部分用于连接动力源。
可选的,所述驱动轴的转动轴线与所述齿圈的转动轴线平行。
可选的,所述动力源为旋钮和/或电机;
其中所述旋钮的至少一部分暴露于所述壳体,所述旋钮与所述驱动轴为一体或分体结构;
所述电机处在壳体内部。
可选的,沿器械通道的延伸方向,所述压握器具有相对的正面和背面,所述旋钮处在所述壳体的正面,且所述壳体的正面还安装有托架。
可选的,所述旋钮的至少一部分处在所述壳体的外部,且该部分与所述壳体的外壁之间抵压有弹性垫片。
可选的,所述弹性垫片呈环形,所述弹性垫片套设于所述旋钮,且所述弹性垫片的轴向一侧与所述壳体相贴靠,另一侧与所述旋钮相贴靠。
可选的,所述壳体的外壁具有与所述旋钮位置对应内陷区,所述弹性垫片置于所述内陷区内。
可选的,沿所述齿圈的径向,所述驱动轴处在所述齿圈的外侧。
可选的,所述驱动轴与所述齿圈之间直接传动或通过联动组件传动;
所述联动组件采用齿轮组或蜗轮蜗杆的方式传动。
可选的,所述齿轮组包括啮合传动的多个齿轮,且各个齿轮的转动轴线均与所述驱动轴平行。
可选的,所述齿轮的数量的2~5个。
可选的,所述齿轮组包括:
第三齿轮,所述第三齿轮与所述驱动轴同轴线固定设置;
第四齿轮,所述第四齿轮与所述壳体转动配合,所述第四齿轮啮合传动于所述第三齿轮与所述齿圈之间。
可选的,所述齿圈包括环形部,所述环形部的外周分布有与所述联动组件啮合的驱动齿。
可选的,所述第三齿轮与所述第四齿轮均处于所述壳体内,沿所述齿圈的径向,所述第三齿轮与所述第四齿轮均处于所述齿圈的外侧。
可选的,所述第四齿轮包括至少同轴设置的第一单元齿和第二单元齿,分别与所述第三齿轮和所述驱动齿相啮合;
所述第一单元齿和第二单元齿的齿厚比为1:0.7~1.5。
可选的,沿齿圈的轴向,所述齿圈外周缘局部偏移、并形成偏移区,所述驱动齿位于所述偏移区;
所述齿圈在所述偏移区的正面形成避让区,所述避让区容纳所述第一单元齿或所述第二单元齿。
本申请还提供一种压缩介入器械的压握器,包括:
壳体,所述壳体呈中空设置,并带有贯通的器械通道;
多个施力块,各施力块活动安装于所述壳体内,并绕所述器械通道分布,多个施力块能够相对的聚拢和分离,并相应的收放器械通道;
齿圈,所述齿圈转动安装于所述壳体内且处在所述器械通道的外围,所述齿圈传动连接于所述各施力块,并同步驱动多个施力块,所述齿圈设置有多处限位结构,多处限位结构在所述齿圈的周向位置不同;
档位件,所述档位件相对于所述壳体活动安装,所述档位件具有多个工作位,在各工作位下与相应的限位结构配合、限制所述齿圈的转动。
可选的,各限位结构在所述齿圈的径向位置不同;所述档位件沿齿圈的径向运动至对应的工作位。
可选的,所述限位结构为设置在所述齿圈的限位台阶,所述档位件在工作位下与相应的限位台阶沿齿圈周向相抵限位。
可选的,所述压握器还包括用于驱动所述档位件的驱动机构,所述驱动机构包括:
操作钮,所述操作钮转动安装于所述壳体;
传动件,所述传动件与所述操作钮联动,并能够驱使所述档位件在各工作位切换;
弹性件,所述弹性件作用于所述档位件,以保持所述档位件处于工作位。
可选的,所述传动件为凸轮,所述凸轮的转动轴线与所述档位件的运动方向垂直。
可选的,所述操作钮处在壳体的正面,并与处于同侧的视窗设置于所述操作通道的两侧。
可选的,所述档位件至少包括与所述凸轮的外周侧抵靠的驱动部,与所述限位结构配合的锁定部,以及与所述弹性件连接的传动部;
沿所述齿圈的轴向,所述驱动部与所述锁定部位于所述档位件的两相对侧。
可选的,所述弹性件为压簧,所述弹性件抵压在所述传动部与所述壳体的内壁之间,并对所述档位件的径向内侧施力。
可选的,所述档位件呈块状,所述档位件位于所述壳体内壁与所述齿圈之间。
可选的,所述驱动部朝向所述档位件的径向外侧;
所述锁定部的朝向与档位件的朝向呈垂直设置。
可选的,所述档位件沿齿圈轴向的两相对侧具有第一槽结构与第二槽结构,所述第一槽结构容纳所述齿圈的部分结构,所述第二槽结构容纳所述凸轮,且所述第二槽结构的其中一内壁为所述驱动部。
可选的,所述档位件的径向内侧具有第三槽结构,所述第三槽结构的底壁为所述传动部;
所述档位件还带有固定于所述第三槽结构内的柱体,所述弹性件的端部套设于所述柱体的外侧。
可选的,所述档位件具有相对的顶面与底面,所述锁定部位于所述档位件的顶面,并位于所述第一槽结构与所述第三槽结构之间。
可选的,所述操作钮与所述凸轮之间通过多个相互啮合的传动齿轮传动,且所述操作钮的转动轴线、凸轮的转动轴线以及各传动齿轮的转动轴线平行;
按照传动次序,首个传动齿轮与所述操作钮同轴设置,末个传动齿轮与所述凸轮同轴设置。
可选的,沿器械通道的周向,所述档位件位于相邻两施力块之间,且所述档位件的运动路径避让各施力块。
可选的,所述压握器还包括用以将所述档位件锁定在对应工作位的锁紧件,所述锁紧件直接或间接干涉以下至少一个运动部件:
所述档位件;
所述操作钮;
所述凸轮;
所述传动齿轮。
可选的,所述壳体的内壁具有与所述锁紧件相互配合的多个卡槽,多个卡槽沿所述运动部件的转动或运动方向依次设置。
可选的,所述锁紧件包括:
锁舌,所述锁舌与所述卡槽相配合;
连接臂,所述连接臂连接于所述锁舌与所述运动部件之间,且能够形变。
可选的,所述连接臂的延伸方向呈弧形,所述连接臂的两端分别与所述运动部件连接,所述锁舌位于所述连接臂的弧顶。
可选的,所述压握器还包括安装于所述壳体的弹片;
所述齿圈沿自身周向设置有多个与所述弹片相配合的卡齿,所述弹片能够越过所述卡齿、并振动或发出声音。
具体的有益技术效果将在具体实施方式中结合具体结构或步骤进一步阐释。
附图说明
图1为本申请提供的一实施例中压握器的结构示意图;
图2为图1中压握器另一视角的结构示意图;
图3为图1中压握器的分解结构示意图;
图4为图1中压握器的局部分解结构示意图;
图5为图4中省略透明盖板的结构示意图;
图6为图3中指示标识与施力块的结构示意图;
图7为图6中指示标识与施力块的分解结构示意图;
图8为图1中压握器省略部分壳体的结构示意图;
图9为图8中部分壳体的结构示意图;
图10为图9中壳体的局部剖视图;
图11为图8中施力块与齿圈的结构示意图;
图12为图8中施力块与齿圈的结构示意图;
图13为图11中齿圈的结构示意图;
图14为图11中施力块与传动机构的结构示意图;
图15为图14中传动机构的结构示意图;
图16为图15中传动机构的分解结构示意图;
图17为图1中压握器的部分结构示意图;
图18为图17中旋钮与转轴的分解结构示意图;
图19为本申请提供的一实施例中压握器的结构示意图;
图20为图19中档位件与壳体的局部结构示意图;
图21为图20中壳体的结构示意图;
图22为档位件与齿圈的结构示意图;
图23为档位件与齿圈的另一视角的结构示意图;
图24为图20中档位件的结构示意图;
图25为图22中第一传动齿轮的结构示意图;
图26为图22中第二传动齿轮的结构示意图;
图27为图19中压握器与托架的分解结构示意图;
图28为图27中压握器与托架的分解结构示意图;
图29为图27中托架的分解结构示意图;
图30为图29中托架的第一半筒的结构示意图;
图31为图29中托架的第二半筒的结构示意图;
图32为压握器中壳体与底座的分解结构示意图;
图33为图32中底座的结构示意图;
图34为本申请提供的一实施例中介入器械的结构示意图;
图35为图34中介入器械压缩后的结构示意图;
图36为本申请提供的一实施例中压握器的结构示意图;
图37为本申请提供的一实施例中压握器的结构示意图;
图38为图36中压握器省略部分壳体的结构示意图;
图39为图36中压握器省略部分壳体的结构示意图;
图40为图36中压握器的分解结构示意图;
图41为图38中齿圈与施力块的结构示意图;
图42为图38中齿圈与施力块的结构示意图;
图43为图41中齿圈的结构示意图;
图44为图41中传动机构的结构示意图;
图45为图42中传动机构的结构示意图;
图46为图41中施力块的结构示意图;
图47为驱动把手与壳体的连接结构示意图;
图48为图47中驱动把手与壳体的分解结构示意图;
图49为图36中壳体的分解结构示意图;
图50为图49中壳体的部分结构示意图;
图51为图49中本体的结构示意图;
图52为压握器的结构示意图;
图53为压握器的结构示意图;
图54为图53中压握器的分解结构示意图;
图55为本申请提供的一实施例介入器械的装载方法的流程图;
图56为介入器械的结构示意图;
图57为介入器械的结构示意图;
图58为介入器械装载至输送系统的结构示意图。
图中附图标记说明如下:
100、压握器;101、正面;102、背面;
10、壳体;11、器械通道;12、第一半壳;121、第二半壳;122、装饰板;123、内凹区;13、窗口;14、视窗;141、透明盖板;142、第一卡块;143、第一卡槽;144、凹陷区;15、安装柱;151、轴孔;152、内筒;153、外筒;154、封板;16、固定柱;17、安装区;18、固定部;181、卡舌;182、悬臂;19、导向槽;191、扩口;192、导向板;193、让位区;194、引导槽;
20、施力块;21、插槽;22、折弯部;221、第一边缘面;222、第二边缘面;223、弧形过渡面;
30、指示标识;31、插接部;32、指示部;
40、齿圈;41、环形部;411、驱动齿;42、内齿;43、传动机构;431、齿条;432、传动齿轮;433、第五齿轮;434、第六齿轮;435、转轴;436、第二卡块;437、第二卡槽;438、过孔;44、卡齿;441、第一导向齿面;442、第二导向齿面;45、限位结构;451、限位台阶;452、过渡面;46、偏移区;47、避让区;
50、驱动轴;51、动力源;52、旋钮;521、配合槽;522、外壳;523、连接件;524、第三卡块;525、第三卡槽;526、凹陷;53、联动组件;531、第三齿轮;532、第四齿轮;533、第一单元齿;534、第二单元齿;535、轮轴;536、轮轴;54、第一对位标识;
60、档位件;61、驱动机构;611、操作钮;612、凸轮;613、弹性件;62、传动齿轮;621、第一传动齿轮;622、第二传动齿轮;63、锁紧件;631、锁舌;632、锁槽;633、连接臂;64、第二对位标识;65、驱动部;651、锁定部;652、传动部;653、第一槽结构;654、第二槽结构;655、第三槽结构;656、柱体;
70、弹片;71、连接部;72、触发部;
80、托架;81、第一半筒;811、第二半筒;812、承载托槽;813、转动槽;814、限位齿;815、固定轴;816、卡合块;817、操作耳;818、导向面;819、锁合面;82、弹性衬垫;83、贴合部;831、卡块;832、卡槽;84、过渡段;
90、底座;91、凸台;911、安装槽;912、锁合槽;92、定位组件;921、防呆凸棱;922、防呆凹槽;923、扩口;
200、介入器械;201、支架;
9100、压握器;9101、器械通道;9103、输送系统;9104、第一管件;9105、第二管件;9106、引导头;9107、安装头;
910、壳体;911、操作窗;912、安装室;913、导向单元;9131、导向板;9132、导向槽;9133、避让区;914、窗口;915、本体;916、盖板;
920、施力块;921、折弯部;9211、第一边缘面;9212、第二边缘面;9213、弧形过渡面;
930、齿圈;931、环形部;932、驱动齿;933、减重槽;934、连接部;935、卡槽;
940、传动机构;941、齿条;942、传动齿轮;9421、第一齿轮;9422、第二齿轮;
950、驱动机构;951、驱动把手;9511、握持部;9512、卡接部;952、遮挡板;
960、底座;961、卡接结构;9611、卡舌;9612、卡槽;962、安装槽;
970、限位部件;971、固定部;972、调节部;9721、承托槽;973、锁定机构;9731、螺柱;9732、操作部;9733、螺纹孔;
980、托架;981、承载托槽;9811、卡块;982、弹性衬垫;9821、凹槽;983、支撑部;984、承托部;985、磁吸件;986、配合件;987、贴合部;988、扩口段;989、半筒结构;
990、介入器械;991、支架;992、连接耳;993、第一段;994、第二段。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
需要说明的是,当组件被称为与另一个组件“连接”时,它可以直接与另一个组件连接或者也可以存在居中的组件。当一个组件被认为是“设置于”另一个组件,它可以是直接设置在另一个组件上或者可能同时存在居中组件。
除非另有定义,本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的,不是在于限制本申请。本文所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
本申请中,术语“第一”、“第二”等仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、次序。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中,“多个”的含义是至少两个,例如两个、三个等,除非另有明确具体的限定。
参考图1至3所示,本申请提供了一种压缩介入器械200的压握器100,包括:
壳体10,壳体10呈中空设置,并带有贯通的器械通道11;
多个施力块20,各施力块20活动安装于壳体10内,并绕器械通道11分布,多个施力块20能够相对的聚拢和分离,并相应的收放器械通道11。
介入器械200为了便于在体内输送,手术前需要利用压握器100进行径向压缩,以获得较小的径向尺寸,压缩后装载至输送系统,并以压缩状态送至体内治疗部位,最后在期望位置处扩张至功能尺寸。
介入器械200未进入到器械通道11内时,多个施力块20处于相对分离状态。介入器械200进入到器械通道11内后,多个施力块20由分离逐渐向聚拢切换,在此过程中,多个施力块20会收缩器械通道11,器械通道11的内壁挤压介入器械200,器械通道11的内壁将介入器械200均匀地缩小尺寸。
各施力块20的形状均相同;在施力块20安装的过程中,无需识别施力块20的类型,简化了施力块20的组装方式。
压握器100具有相对的正面101和背面102;压握器100具有与支撑台面(例如操作台)相配合的底面(例如图2中的A),以及与底面相对的顶面(例如图2中的B)。其中,器械通道11的两端分别开放于压握器100的正面101和背面102。
壳体10的内部形成安装室,各施力块20活动设置于安装室内。壳体10的形状并没有严格限制,例如图中壳体10大致呈圆筒状。为了便于装配其他部件,可采用分体结构,即壳体10包括相互扣合的两个半壳,当然为了便于局部的维护或操作,也可以分为更多部分。为了便于两个半壳之间相互固定,可采用卡扣、螺钉等多种方式。
壳体10在空间上具有一轴向,壳体10沿轴向的两端分别与压握器100的正面101以及背面102相对应。其中,器械通道11沿壳体10的轴向延伸。
各半壳分别设置有窗口13,各窗口13均与安装室相连通,器械通道11的轴向两端分别开放于两窗口13。其中,各施力块20在压握介入器械200时,各施力块20暴露在对应窗口13处。
器械通道11的内壁由各施力块20相互配合构成。需要解释的是,多个施力块20处于聚拢与分离是一个相对概念;分离对应:各施力块20径向向外、具有相互远离的趋势;多个施力块20处于聚拢时,会对介入器械200进行压缩。
器械通道11具有一中心轴线,该中心轴线穿过器械通道11的几何中心,各施力块20收放器械通道11的过程中,器械通道11的中心轴线位置不会发生改变,以避免影响对介入器械200的压缩。
例如附图34至附图35中,介入器械200(例如为人工心脏瓣膜,图中仅表达支架部分)为例,介入 器械200包括筒状的支架201,支架201一般可采用切割或编织的方式形成,为了实现径向可形变,多为网格结构,支架201内设有瓣叶(一般为两片或三片,相互配合控制血流),并可根据需要设置贴覆在支架201内壁或外壁的覆膜。
在本实施例中,如图4至图7所示,提供了一种用于指示介入器械200压缩程度的压握器100,包括:
壳体10,壳体10呈中空设置,并带有贯通的器械通道11;
多个施力块20,各施力块20活动安装于壳体10内,并绕器械通道11分布,多个施力块20能够相对的聚拢和分离,并相应的收放器械通道11;
至少一施力块20上带有指示标识30,壳体10开设有与指示标识30位置相应的视窗14。
指示标识30能够指示施力块20的位置;施力块20在运动的过程中,会带动指示标识30运动;通过视窗14观察指示标识30的位置,确定施力块20的运动位置,以能够便于确定器械通道11的缩放程度。
指示标识30的具体形状没有严格的限制(例如图中指示标识30为杆状),至少便于操作者进行观察。在不同的实施例中指示标识30可以是外凸于施力块20的外表面;或者指示标识30是施力块20的一部分,仅仅是颜色与施力块20的其它部分的颜色不同。
沿壳体10轴向,指示标识30位于所在施力块20的一侧,且视窗14位于壳体10对应侧,以便于缩短视窗14与指示标识30之间的距离,相应的视窗14为条形,且沿指示标识30所在的施力块20的运动方向延伸。
在本实施例中,指示标识30与施力块20为分体固定,分体固定方式为插接和/或粘结。当然,在其它实施方式中,指示标识30与施力块20可为一体结构。
插接配合时,指示标识30与施力块20两者中,其中一者设置有插接部31,另一者设置有与插接部31相配合的插槽21。例如图中,插接部31为柱状,且固定于指示标识30朝向施力块20的一端,施力块20的侧壁设置有与插接部31轮廓大致呈一致的插槽21。
带有指示标识30的施力块20的运动方向与压握器100的底面平行,使用过程中底面一般呈水平,指示标识30水平运动相对于斜向运动有利于消除视觉误差。
视窗14镂空于壳体10,且在镂空部位扣合有透明盖板141,例如透明盖板141设置有第一卡块142,壳体10设置有与第一卡块142相配合的第一卡槽143,透明盖板141即可密封视窗14又不干涉观察指示标识30。壳体10的具有环绕视窗14的凹陷区144,指示部32置于凹陷区144;透明盖板141扣合于凹陷区144,并与壳体10的周边部位等高,即透明盖板141与壳体10两者外侧面大致平齐。
壳体10和/或透明盖板141上可设有获知指示标识30位移的参照刻度,参照刻度沿指示标识30的运动方向依次排布,且临近指示标识30以便对照。
指示标识30的端部伸出视窗14形成指示部32,指示部32的宽度大于视窗14的宽度(可理解为图2中的高度方向),可兼顾防脱和醒目,指示部32与壳体10可配置不同的颜色,以便区分。
指示标识30可配置多个,例如有两个且分别位于壳体10轴向的两相对侧,操作者可从压握器100的不同侧观察指示标识30。两个指示标识30还可以固定于同一施力块20,以保证指示的精准同步。
各施力块20可采用多种方式驱动,其中一实施例提供一种改进的方式,如图8至图16所示,压握器100还包括齿圈40,齿圈40与壳体10转动配合,齿圈40同步驱动多个施力块20。
旋转齿圈40,以带动多个施力块20相对的分离或聚拢。其中,同步运动可以理解为各施力块20同时运动,且运动速度相同。
通过齿圈40驱动施力块20运动,使压握器100的零部件的数量减少,可以更好的控制开模成本以及零件尺寸,起到组装简单,无繁琐的固定装配形式的效果。
齿圈40的转动轴线与器械通道11的延伸方向相互平行;齿圈40的转动轴线与施力块20的运动方向呈垂直设置。齿圈40包括环形部41(如图中圆环),以及分布在环形部41内缘且与施力块20传动配合的内齿42。齿圈40通过内齿42可以采用啮合传动的方式同步驱动多个施力块20,以提高齿圈40驱动多个施力块20的稳定性以及精度。相应的,环形部41内具有一定的空间,环形部41环绕在多个施力块20的外围,使压握器100的结构更加紧凑,并减小压握器的尺寸。
在本实施例中,齿圈40通过传动机构43和各施力块20之间传动连接;传动机构43包括齿条431以及传动齿轮432,齿条431设置于各施力块20,传动齿轮432转动安装于壳体10内,各齿条431与齿圈40上的内齿42之间通过一个或多个传动齿轮432啮合传动。
齿圈40转动的过程中,会通过传动齿轮432同步带动各齿条431运动,以能够驱动施力块20运动。其中,齿圈40、传动齿轮432以及齿条431三者之间采用啮合传动的方式,能够使齿圈40稳定的驱动施力块20运动。
齿圈40环绕在传动齿轮432的外围;传动齿轮432的转动轴线与齿圈40的转动轴线相互平行;沿 器械通道11的延伸方向,齿条431与齿圈40呈错位设置可减少干涉,允许齿条431有更大的行程。
在本实施例中,传动齿轮432包括多套,每套对应一施力块20,每套传动齿轮432采用1~3级的齿轮传动;其中首级传动齿轮与齿圈40相啮合,末级传动齿轮与齿条431相啮合。各传动齿轮432的形状均相同;在传动齿轮432安装的过程中,无需识别传动齿轮432的类型,简化了传动齿轮432的组装方式。
每套传动齿轮432中包括第五齿轮433以及与第五齿轮433同轴固定设置的第六齿轮434,第五齿轮433与齿圈40相啮合,第六齿轮434与对应施力块20上的齿条431相啮合。
其中,在施力块20运行时,施力块20避让第五齿轮433以及第六齿轮434。
第五齿轮433的轴向长度为L1,第六齿轮434的轴向长度为L2,且满足,L1:L2=(3~6):1;第五齿轮433的分度圆直径为D1,第六齿轮434的分度圆直径为D2,且满足D1:D2=1:(0.3~0.7)。优选地,D1:D2=1:(0.4~0.6)。在本实施例中,同一施力块20上所固定的齿条431为并排布置的两根,沿器械通道11的延伸方向,各齿条431分别位于齿圈40的两侧。传动齿轮432通过驱动两齿条431带动施力块20运动,两齿条431的设置能够增加作用在施力块20沿器械通道11延伸方向的施力点,以使施力块20的运行稳定。其中,插槽21位于齿条431的一侧。
同一施力块20上,针对每根齿条431,分别配置一个第六齿轮434。沿器械通道11的延伸方向,每套传动齿轮432包括两个第六齿轮434,两个第六齿轮434分别位于第五齿轮433的两侧,第六齿轮434至少局部位于齿圈40的两侧,且该局部位置与对应齿条431啮合。
传动齿轮432通过一转轴435与壳体10转动配合。第五齿轮433以及各第六齿轮434均具有供转轴435穿过的过孔438。
第六齿轮434与第五齿轮433可以采用一体结构,另外第五齿轮433与至少一个第六齿轮434之间还可以呈分体设置,以便于传动齿轮432的脱模加工。例如,第五齿轮433与第六齿轮434两者之间,其中一者的端面设置有第二卡块436,另一者的端面设置有与第二卡块436配合的第二卡槽437。其中,第二卡块436置于第二卡槽437内时,可以通过粘接等方式进一步加强的连接强度。同理,第六齿轮434和转轴435也可以采用类似第六齿轮434与第五齿轮433的连接方式,采用一体或分体结构。
内齿42的数量是施力块20的数量的整数倍(例如8倍),以使齿圈40、传动齿轮432以及齿条431三者相位同步,从而保证施力块20同步运动。例如,内齿42的数量为96个,施力块20的数量为12个;内齿42的数量为104个,施力块20的数量为8个。
为了使齿圈40在较小的行程下,能够尽可能的驱使施力块20的行程,参考其中一实施第五齿轮433与齿圈40的传动比范围为1:(5~15);第六齿轮434与齿圈40的传动比范围为1:(5~15)。例如,第五齿轮433的齿数与第六齿轮434的齿数均为10个;齿圈40的齿数为96个,第五齿轮433与齿圈40的传动比为1:9.6;第六齿轮434与齿圈40的传动比为1:9.6。第五齿轮433的齿数与第六齿轮434的齿数均为12个;齿圈40的齿数为104个,第五齿轮433与齿圈40的传动比为3:26;第六齿轮434与齿圈40的传动比为3:26。
关于第五齿轮433以及第六齿轮434还可以结合下文各实施例中关于第一齿轮9421和第二齿轮9422的相关描述。
器械通道11在收放的过程中,为了使器械通道11在周向上保持连续性,本实施例中,施力块20运动时,沿器械通道11的周向,相邻两施力块20之间始终相互抵靠。
参考附图6至附图7,本实施例中,施力块20朝向器械通道11的一端具有折弯部22(大致为钩状);沿器械通道11的周向,折弯部22具有处于外侧的第一边缘面221以及处在内侧的第二边缘面222;器械通道11的内壁由各施力块20的第一边缘面221与第二边缘面222的交汇处围成。其中,齿条431与施力块20背向折弯部22的一端连接。
沿器械通道11的周向,相邻两施力块20中,其中一施力块20的第一边缘面221与另一施力块20的第二边缘面222相贴合。沿器械通道11的周向,相邻两施力块20中,第二边缘面222遮挡部分第一边缘面221,第一边缘面221暴露于器械通道11的部分为作用面;施力块20由聚拢切换至分离时,作用面沿器械通道11的周向的长度逐渐增加。
针对同一施力块,第一边缘面221与第二边缘面222均通过弧形过渡面223与施力块20上相邻的其他部位平滑过渡;第一边缘面221与第二边缘面222沿器械通道11的周向的夹角为30度;施力块20的运动方向与第二边缘面222之间的夹角为105度,与第一边缘面221的夹角为75度;沿器械通道11的周向,相邻两施力块20的运动方向之间的夹角为30度。
如图9,为了限制施力块20的运动,参考其中一实施例中,壳体10的内壁设置有导向槽19,施力块20的部分结构置于导向槽19内,并能够沿导向槽19滑动。例如,针对同一施力块20,导向槽19的数量为两个,各导向槽19分别位于施力块20沿器械通道11的延伸方向的两相对侧。其中,导向槽19 内的开口朝向施力块20,且开口处具有扩口191,扩口191能够引导施力块20进入到导向槽19内。导向槽19的局部外扩,以形成避让第六齿轮434的让位区193。
导向槽19的构成上,在本实施例中,壳体10的内壁一体设置有两相对布置的导向板192,两导向板192之间形成导向槽19。沿器械通道11的周向,施力块20的两相对侧分别与对应的导向板192贴合,以避免施力块20在器械通道11的周向发生晃动。
在本实施例中,如图8所示,压握器100还包括安装于壳体10的弹片70;齿圈40沿自身周向设置有多个与弹片70相配合的卡齿44,弹片70能够越过卡齿44、并振动或发出声音。
弹片70的一端为与壳体10固定连接的连接部71,另一端为与卡齿44相配合的触发部72,触发部72延伸至齿圈40的外侧壁、并与齿圈40的外侧壁之间呈间隙配合。
连接部71大致呈筒状;壳体10的内壁设置有固定柱16,连接部71套设于固定柱16,并固定于固定柱16,固定柱16的轴线与壳体10的轴向呈平行设置。例如固定柱16的外侧壁带有卡块,连接部71具有与卡块相配合的卡槽。
触发部72为片状,且折弯大致呈C形;触发部72固定于连接部71的侧壁、并与连接部71呈一体设置;弹片70至少触发部72由弹性材料制成。
卡齿44的数量为多个(例如图中三个)、并设置于齿圈40的外周缘。沿齿圈40的周向,卡齿44的两侧分别具有第一导向齿面441与第二导向齿面442,第一导向齿面441与第二导向齿面442在背向齿圈的一侧交汇形成齿尖,触发片72越过齿尖时会振动或发出声音。
结合图1~图3,在本实施例中,壳体10包括:
相互扣合的第一半壳12和第二半壳121,第一半壳12与第二半壳121之间围成安装室;
扣合于第一半壳12或第二半壳121的装饰板122,装饰板122遮蔽壳体10的背面。
第一半壳12大致呈筒状(例如图中的圆筒);第一半壳12的轴向一端呈封闭设置,另一端呈开口设置。其中,第一半壳的封闭端朝向壳体10的正面,开放端朝向壳体10的背面。
第二半壳121呈板状,并扣合于第一半壳12开口处;第二半壳121与第一半壳12之间可以采用螺钉进行连接。其中,装饰板122扣合于第二半壳121。
在本实施例中,壳体10的外周缘与底座90连接以外的部分为中上部,中上部外周为封闭设置,壳体10内部的部件不会从中上部的径向向外伸出。进一步地,中上部外周平滑延伸,以使壳体10的外观更加简洁避免不必要的刮擦。
在本实施例中,如图17至图18所示,提供了一种应用于介入器械200的压握器100,包括:
壳体10,壳体10呈中空设置,并带有贯通的器械通道11;
多个施力块20,各施力块20活动安装于壳体10内,并绕器械通道11分布,多个施力块20能够相对的聚拢和分离,并相应的收放器械通道11;
齿圈40,齿圈40转动安装于壳体10内且处在器械通道11的外围,齿圈40传动连接于各施力块20,并同步驱动多个施力块20;
驱动轴50,驱动轴50至少一部分处在壳体10内并与齿圈40联动,至少一部分用于连接动力源51。
动力源51为驱动轴50提供动力,驱动轴50只需驱动齿圈40转动,即可能够带动各施力块20分离或聚拢,以能够降低驱动轴50与齿圈40之间的对位难度,同时还能够降低驱动轴50与齿圈40的装配难度。
其中,齿圈40驱动施力块20的方式以及壳体10的结构可结合前文各实施例。
驱动轴50为至少可以传递扭矩的一部件。动力源51可以在现有技术中选取电动部件或者是手动驱动部件,当动力源51直接输出的运动方式与驱动轴50的运动方式不一致时,可以利用适当的传动部件对运动形式进行转行和传递。例如,动力源51为旋钮52和/或电机;旋钮52的至少一部分暴露于壳体10,电机处在壳体10内部。以下各实施例以动力源51为旋钮52进行阐述。
旋钮52与驱动轴50为一体或分体结构;分体结构时,旋钮52与驱动轴50之间直接或间接连接。例如图中,旋钮52具有配合槽521,驱动轴50的轴向一端伸入至配合槽521内,并与配合槽521相卡接,以使驱动轴50能够随旋钮52同步旋转。沿驱动轴50的径向,配合槽521的截面为非圆形,驱动轴50的外轮廓与配合槽521大致相同,以确保驱动轴50与旋钮52之间同步转动。
旋钮52的设置,参考其中一实施例中,旋钮52包括外壳522以及嵌套于外壳522内、并与外壳522相卡接的连接件523,配合槽521开设于连接件523。操作者通过握持外壳522的外侧壁,通过连接件523带动驱动轴50运动。
外壳522与连接件523大致呈筒状。外壳522的轴向一端呈封闭设置,另一端呈开口设置,外壳522开口处的外缘与壳体10的侧壁相贴合;连接件523的轴向一端伸入至外壳522内,另一端伸入至壳体10内。例如,连接件523的外侧壁设置有第三卡块524,外壳522的内侧壁设置有与第三卡块524相配合的 第三卡槽525,以将外壳522与连接件423之间进行连接。其中,为了便于握持,外壳522的外周设置有多个凹陷526。
在本实施例中,器械通道11的延伸方向,旋钮52处在壳体10的正面。旋钮52的至少一部分处在壳体10的外部,且该部分与壳体10的外壁之间设置有弹性垫片,弹性垫片能够增加旋钮52与壳体10之间的摩擦力,对旋钮52的位置进行锁定。壳体的外壁具有与旋钮52位置对应的具有内凹区123,弹性垫片置于内凹区123,并与壳体10的周边部位等高。例如,弹性垫片呈环形,弹性垫片套设于旋钮52(连接件523),且弹性垫片的轴向一侧与壳体10相贴靠,另一侧与旋钮52(外壳522朝向壳体10的一侧)相贴靠。
驱动轴50在空间上具有一轴线,旋钮52能够带动驱动轴50绕自身轴线自转,此时驱动轴50的轴线可以理解为驱动轴50的转动轴线。驱动轴50的转动轴线与齿圈40的转动轴线平行;沿齿圈40的径向,驱动轴50处在齿圈40的外侧,以能够避免增加压握器100在器械通道11延伸方向的尺寸,以使压握器100的结构更加紧凑。
驱动轴50与齿圈40之间直接传动或通过联动组件53传动。其中,环形部41的外周分布有与联动组件53啮合的驱动齿411。其中,壳体10的径向外凸,外凸部分与壳体10的其它部分通过圆弧面进行过渡,外凸部分能够增加壳体10的内部空间,便于对驱动轴50以及联动组件53进行装配。
联动组件53是将驱动轴50的输出传递至齿圈40,使齿圈40转动,联动组件53根据驱动轴50与齿圈40的安装位置和运动形式可以采用现有技术中的各类传动方式,并对运动的方向和速度进行改变以适应驱动轴与齿圈的工作特点。例如联动组件53采用齿轮组或蜗轮蜗杆的方式传动。以下各实施例以联动组件53采用齿轮组进行阐述。
齿轮组包括啮合传动的多个齿轮,且各个齿轮的转动轴线均与驱动轴平行。齿轮的数量的2~5个,例如图中齿轮的数量为2个。例如,齿轮组包括第三齿轮531与第四齿轮532,第三齿轮531与驱动轴50同轴线固定设置,第四齿轮532与壳体10转动配合,第四齿轮532啮合传动于第三齿轮531与齿圈40之间。其中,第三齿轮531与第四齿轮532均处于壳体内,沿齿圈40的径向,第三齿轮531与第四齿轮532均处于齿圈40的外侧。
第四齿轮532包括至少同轴设置的第一单元齿533和第二单元齿534,第一单元齿533与第三齿轮531相啮合,第二单元齿534与驱动齿411相啮合。第一单元齿533和第二单元齿534的齿厚比为1:0.7~1.5,以能够加强第一单元齿533与第二单元齿534之间结构强度。沿齿圈40的轴向,齿圈40外周缘局部偏移、并形成偏移区46,驱动齿411位于偏移区46;齿圈40在偏移区46的正面(朝向壳体10的正面)形成避让区47,避让区47容纳第一单元齿533。第一单元齿533的分度圆直径为D3,第二单元齿534的分度圆直径为D4,且满足D3:D4=1:(0.4~0.7)。
结合图3、图9、图10,壳体10的内壁设置有安装柱15,安装柱15呈内外嵌套的双层结构,双层结构的内部具有与第四齿轮532的轮轴536相配合的轴孔151,双层结构能够加强安装柱15与壳体10之间的连接强度以及对轮轴536的稳定支撑。其中,安装柱15与壳体之间呈一体设置。
安装柱15包括内筒152、外筒153以及封板154,内筒152带有轴孔151,外筒153外筒套设于内筒152外侧,封板154呈环形,封板154的内周缘与内筒152端部连接,外周缘与外筒153端部连接。
安装柱15还包括加强肋板,加强肋板固定于内筒152与外筒153之间,并沿安装柱15的轴向延伸。其中,加强肋板的数量为多个,多个加强肋板沿内筒152的轴向布置。
在本实施例中,驱动轴50与壳体10之间设置有第一对位标识54,用以指示旋钮52的预定指向,能够确定旋钮52的安装位置。其中,第一对位标识54成对设置,其中一第一对位标识54设置于壳体10的内壁,另一第一对位标识54设置于驱动轴50。
第一对位标识54的具体形状没有严格的限制。例如:第一对位标识54为三角、方块等。旋钮52的预定指向可以是通过设置在旋钮52上的指向标识,或者旋钮52(例如图中旋钮52呈条状)的自身形状进行指向。
在本实施例中,如图19至图26所示,提供了一种应用于介入器械200的压握器100,包括:
壳体10,壳体10呈中空设置,并带有贯通的器械通道11;
多个施力块20,各施力块20活动安装于壳体10内,并绕器械通道11分布,多个施力块20能够相对的聚拢和分离,并相应的收放器械通道11;
齿圈40,齿圈40转动安装于壳体10内且处在器械通道11的外围,齿圈40传动连接于齿圈40,并同步驱动多个施力块20,齿圈40设置有多处限位结构45,多个限位结构45在齿圈29的周向位置不同;
档位件60,档位件60相对于壳体10活动安装,档位件60具有多个工作位,在各工作位下与相应的限位结构45配合、限制齿圈40的转动。
齿圈40在转动的过程中,各限位结构45会随着齿圈40同步转动;档位件60与限位结构45进行配 合时,能够将齿圈40位置进行固定,此时能够对施力块20的位置进行固定,以限制施力块20对介入器械200压缩;在齿圈40转动的过程中,会使不同的限位结构45与档位件60配合,以能够实现对介入器械200逐级压缩的效果。
其中,齿圈40驱动施力块20的方式以及壳体10的结构可结合前文各实施例。
各限位结构45在齿圈40的径向位置不同;档位件60沿齿圈40的径向运动至对应的工作位。限位结构45为设置在齿圈40的限位台阶451,档位件60在工作位下与相应的限位台阶451沿齿圈40周向相抵限位。各限位台阶451为沿齿圈40内周缘阶梯设置,相邻两限位台阶451之间具有沿齿圈40周向延伸的过渡面452,档位件60在相邻两限位台阶451切换时,档位件60避让过渡面452。其中,沿器械通道11的周向,档位件60位于相邻两施力块20之间,且档位件60的运动路径避让各施力块20。
在本实施例中,压握器100还包括用于驱动档位件60的驱动机构61;驱动机构61包括操作钮611、传动件以及弹性件613,操作钮611转动安装于壳体10;传动件与操作钮611联动,并能够驱使档位件60在各工作位切换;弹性件613作用于档位件60,以保持档位件60处于工作位。
操作钮611处在壳体10的正面。例如图中,操作钮611与处于同侧的视窗14分别设置于器械通道11的两相对侧。
传动件为凸轮612,凸轮612的转动轴线与档位件60的运动方向垂直;档位件60的运动方向与压握器100的底面平行。凸轮612的外周侧为连续的曲面,档位件60能够与凸轮612的外周侧相抵靠,在档位件60与凸轮612的外周侧不同位置进行抵靠时,能够改变档位件60的工作位。
凸轮612与壳体10两者之间设置有第二对位标识64,第二对位标识64用以指示凸轮612、使档位件60处于非工作位。其中,档位件60的非工作理解为除工作位以外的状态。例如,凸轮612的外侧距转动轴线最远处与档位件60的锁定部651相贴合。
第二对位标识64成对设置,其中一第二对位标识64置于壳体10的内壁,另一第二对位标识64设置于凸轮612的侧壁。第二对位标识64的具体形状没有严格的限制。例如:第二对位标识64为三角、方块等。
操作钮611与凸轮612之间通过多个相互啮合的传动齿轮62传动,且操作钮611的转动轴线、凸轮612的转动轴线以及各传动齿轮62的转动轴线平行。例如图中,传动齿轮62的数量为两个,分别为第一传动齿轮621与第二传动齿轮622,第一传动齿轮621与操作钮611同轴设置,第二传动齿轮622与凸轮612同轴设置,第一传动齿轮621与第二传动齿轮622相啮合传动。
为了限制档位件60的运动,参考其中一实施例中,壳体10的内壁设置有引导槽194,档位件60的部分结构置于引导槽194内,并能够沿引导槽194滑动,用以限制档位件60运动路径。例如,引导槽194的数量为两个,各引导槽194分别位于档位件60沿壳体10轴向的两相对侧。
在本实施例中,档位件60至少包括与凸轮612的外周侧抵靠的驱动部65,与限位结构45配合的锁定部651,以及与弹性件613连接的传动部652;沿齿圈40的轴向,驱动部65与锁定部651位于档位件60的两相对侧。其中,驱动部65朝向档位件60的径向外侧;锁定部651的朝向与档位件60的朝向呈垂直设置。
档位件60大致呈块状(例如图中的矩形体),并具有相对的顶面与底面;档位件60位于壳体10内壁与齿圈40之间。档位件60沿齿圈40的轴向具有第一槽结构653与第二槽结构654,径向内侧具有第三槽结构655;其中,第一槽结构653容纳齿圈40的部分结构;第二槽结构654容纳凸轮612,且该第二槽结构654的其中一内壁为驱动部65,并为弧形面;第三槽结构655的底壁为传动部652,弹性件613抵压在第三槽结构655的底壁;锁定部651位于档位件60的顶面,并位于第一槽结构653与第三槽结构655之间。
在本实施例中,弹性件613为压簧,弹性件613抵压在传动部652与壳体10的内壁(引导槽194径向内侧的槽壁)之间,并对档位件60的径向内侧施力。其中,第三槽结构655内设置有柱体656,弹性件613的端部套设于柱体656的外侧,以能够对弹性件613进行固定。
在本实施例中,压握器100还包括用以将档位件60锁定在对应工作位的锁紧件63,锁紧件63直接或间接干涉以下至少一个运动部件:档位件60;操作钮611;凸轮612;传动齿轮62。
壳体10的内壁具有与锁紧件63相互配合的多个锁槽632,多个锁槽632沿运动部件的转动或运动方向依次设置。
锁紧件63设置于第一传动齿轮621,壳体10设置有多个沿第一传动齿轮621周向布置的多个锁槽632。例如图中,锁槽632的数量为3个。
锁紧件63包括锁舌631以及连接臂633,连接臂633连接于锁舌631与运动部件之间,连接臂633的延伸趋势呈弧形,连接臂633的两端均与运动部件连接,锁舌位于连接部弧顶处。如图中,连接臂633的两端分别与第一传动齿轮621连接,连接臂633的弧形开口朝向第一传动齿轮621的转动轴线;锁舌 631位于连接臂633的中间部位、且背向第一传动齿轮621的转动轴线设置。第一传动齿轮621转动的过程中,会使锁舌631卡入到对应的锁槽632内,以能够限制第一传动齿轮621的转动,连接臂633能够形变适应锁舌631进出对应的锁槽632。
压缩后的介入器械200需要装载到管件内,为了对管件进行支撑,在本实施例中,如图27至图31所示,壳体10的正面还安装有托架80,托架80以卡合方式可拆卸安装于壳体10,并具有与器械通道11位置相对应的支撑位。管件放置在支撑位处时,管件内的通道与器械通道11相对布置,以便于介入器械200进入到管件内的通道。
托架80的内部作为支撑位的承载托槽812。托架80呈筒状结构,托架80包括两个径向拼合第一半筒81与第二半筒811,第一半筒81与第二半筒811之间围成的空间为承载托槽812。
第一半筒81与第二半筒811相卡接。例如图中,第一半筒81位于第二半筒811的下方,第一半筒81的一侧具有半开放的转动槽813,相对的另一侧设置有限位齿814,第二半筒811的一侧设置有与转动槽813相配合的固定轴815,相对的另一侧设置有与限位齿814相配合的卡合块816。其中,限位齿814外凸于第一半筒81的外侧壁;卡合块816具有导向面818以及锁合面819,限位齿814由导向面818越过卡合块816后、与锁合面819相抵限位。
第二半筒811的侧壁带有操作耳817,卡合块816位于操作耳817处,在卡合块816越过限位齿814的过程中,操作耳817能够发生形变。其中,操作耳817外凸于第二半筒811,并与第二半筒811平滑过渡。
第一半筒81朝向壳体10的一侧还设置有贴合部83,贴合部83设置有多个卡块831,壳体10设置有与各卡块831相配合的多个卡槽832。例如图中,卡块831的数量为两个,两个卡块831设置于贴合部83、并位于器械通道11的径向两侧;相应的,卡槽832的数量为两个,两个卡槽832位于壳体10,且两个卡槽832的开口朝向不同。安装托架80时,通过旋转托架80,将各卡块831分别卡入到对应的卡槽832内,以能够将托架80固定在壳体10上。
贴合部83呈扇环状,贴合部83对应的圆心角为120度~180度,贴合部83处在器械通道11的下半部。壳体10具有绕器械通道11的安装区17,安装区17呈凹陷设置,贴合部83置于安装区17内时,贴合部83外表面与壳体10的外表面平齐设置。
托架80还包括固定连接在第一半筒81与贴合部83之间的过渡段84,沿器械通道11的延伸方向,过渡段84内的通道由第一半筒81向壳体10方向逐渐增大,以在过渡段84的两端形成大口端与小口端。过渡段84的小口端与第一半筒81平滑过渡,大口端与贴合部83平滑过渡。其中,过渡段84呈半筒状,过渡段84在沿器械通道11的径向的截面呈U形,过渡段84在压握器100在使用状态下的顶部呈开放。其中,过渡段84的顶面与第一半筒81的顶面大致平齐设置。
承载托槽812内设有弹性衬垫82,弹性衬垫82安装于承载托槽812的内壁,弹性衬垫82可以增加与管件之间摩擦力。例如,弹性衬垫82的材质为硅胶。当然,在其它一些实施例中,承载托槽812的内壁也可以由硅胶材质制成,此时可省略弹性衬垫82的设置。
弹性衬垫82呈筒状结构,弹性衬垫82的侧壁与承载托槽812的内壁相贴靠。弹性衬垫82包括两个径向拼合的单元垫,两单元垫之间形成供管体穿过的通道。
参考附图32及附图33,在本实施例中,压握器100还包括有底座90,底座90具有安装槽911,壳体10的外侧壁带有固定部18,固定部18能够伸入至安装槽911内,以将壳体10固定在底座90上。
底座90大致呈板状,底座90的中间部位具有向上凸出的凸台91,安装槽911位于凸台91。安装槽911的顶面开放于凸台91的端面,固定部18置于安装槽911内时,凸台91的端面与壳体10的侧面相贴靠。
固定部18大致呈筒状,固定部18在空间上具有一轴向,固定部18的轴向一端与壳体10连接,另一端向底座90延伸、并成开放设置。
底座90与壳体10之间设置有定位组件92,使固定部18与安装槽911在周向上有唯一的匹配关系,定位组件92能够确定底座90与壳体10之间的安装位置。例如,定位组件92包括防呆凸棱921以及与防呆凸棱921相配合的防呆凹槽922,防呆凸棱921设置于安装槽911的槽壁与固定部18的侧壁两者中的其中一者,防呆凹槽922开设于安装槽911的槽壁与固定部18的侧壁两者中的另一者。
唯一的匹配关系可理解为:固定部18与安装槽911在旋转360度中,只有唯一的位置使固定部18与安装槽911匹配。例如:防呆凸棱921的数量为1个,相应的防呆凹槽922的数量为1个。防呆凹槽922设置于固定部18的侧壁,并沿固定部18的轴向延伸,且防呆凹槽922的底部呈开放设置。其中,防呆凹槽922的底部具有引导防呆凸棱921进入的扩口923。
为了进一步加强固定部18与安装槽911的连接强度,固定部18的带有卡舌181,安装槽911的槽壁开设有与卡舌181相配合的锁合槽912。卡舌181的数量为多个,且沿固定部18的周向延伸。
各卡舌181均通过悬臂182连接于固定部18的底部,锁合槽912位于安装槽911的底壁。其中,悬臂182由固定部18的底部起,向底座90延伸,悬臂182能够形变、以适应卡舌181的安装就位。
参考图36至40所示,本申请一实施例中公开了一种压缩介入器械的压握器9100,包括:
壳体910,壳体910带有贯通的器械通道9101;
施力块920,施力块920有多个且活动安装在壳体910内,各施力块920绕器械通道9101分布,多个施力块920具有相对的聚拢状态(例如图38中各施力块920中的状态)或分离状态(例如图39中各施力块920中的状态),并在切换状态过程中相应的收放器械通道9101;
齿圈930,齿圈930与壳体910转动配合,齿圈930同步驱动多个施力块920切换状态。
介入器械990为了便于在体内输送,手术前需要利用压握器9100进行径向压缩,以获得较小的径向尺寸,压缩后装载至输送系统,并以压缩状态送至体内治疗部位,最后在期望位置处扩张至功能尺寸。
本实施例还公开了驱动机构950,驱动机构950包括与齿圈930间接或直接连接的驱动把手951。操作人员通过握持驱动把手951、并扳动驱动把手951,以使齿圈930相对于壳体910转动。
介入器械990未进入到器械通道9101内时,多个施力块920处于分离状态。介入器械990进入到器械通道9101内后,旋转齿圈930、以同步带动多个施力块920由分离状态逐渐向聚拢状态切换,在多个施力块920切换状态的过程中,多个施力块920会收缩器械通道9101,器械通道9101的内壁挤压介入器械990,器械通道9101的内壁将介入器械990均匀地缩小尺寸,直至多个施力块920处于聚拢状态。多个施力块920的同步运动是指:各施力块920同时运动,以及各施力块920运动速度相同。
壳体910开设有对应布置的窗口914,各窗口914均与安装室912相连通,且两窗口914之间形成器械通道9101;各施力块920在收拢状态下,各施力块920暴露在对应窗口914处。
本申请中,通过齿圈930驱动施力块920运动,使压握器9100的零部件的数样减少,可以更好的控制开模成本以及零件尺寸,起到组装简单,无繁琐的固定装配形式的效果。
器械通道9101的内壁由各施力块920相互配合构成。需要解释的是,多个施力块920处于聚拢状态与分离状态是一个相对概念,分离状体对应:各施力块920径向向外、具有相互远离的趋势。多个施力块920处于聚拢状态时,例如器械通道9101的内径处于最小值;多个施力块920由聚拢状态径向向外运动时,多个施力块920即处于分离状态。
参考附图56,介入器械990在具体形状上没有严格限制,例如可包括支架991,在支架991的轴向一端带有连接耳992,连接耳992可以是末端带有一膨胀头。支架991为径向可压缩或扩张结构,一般是采用切割或编制方式形成的网筒状结构。在本实施例中,介入器械990为人工心脏瓣膜。
在本实施例中,齿圈930采用啮合传动的方式同步驱动多个施力块920在聚拢状态和分离状态之间切换。啮合传动的方式可以提高齿圈930驱动多个施力块920的稳定性以及精度。关于齿圈930如何同步驱动多个施力块920切换状态详见下文中关于传动机构940的具体描述,在此不予以展开。
参考附图41至附图46,在本实施例中,压握器9100还包括传动机构940,传动机构940在齿圈930和各施力块920之间传动连接。传动机构940是为了将齿圈930的输出传递至各施力块920,使各施力块920同步运动,根据齿圈930与各施力块920的安装位置和运动形式可以采用现有技术中的各类传动方式,并对运动的方向和速度进行改变以适应各施力块920的工作特点。传动机构940至少保证必要的机械强度以及良好、精密的配合方式,以保证各施力块920运动轨迹、速度以及反应时间。
参考附图41至附图42,在本实施例中,传动机构940包括齿条941以及传动齿轮942,齿条941设置于各施力块920,传动齿轮942转动安装于壳体910内,各齿条941与齿圈930之间通过一个或多个传动齿轮942与齿圈930啮合传动。齿圈930转动的过程中,会通过传动齿轮942同步带动各齿条941运动,以能够驱动施力块920运动。本申请中齿圈930、传动齿轮942以及齿条941三者之间采用啮合传动的方式,能够使齿圈930稳定的驱动施力块920运动。
其中,传动齿轮942具有一转动轴线,该轴线为传动齿轮942绕自身的几何中心旋转时的轴线。齿圈930具有一转动轴线,该轴线为齿圈930绕自身的几何中心旋转时的轴线。
在本实施例中,传动齿轮942包括多套,每套对应一施力块920。各传动齿轮942的形状均相同,便于量产;在传动齿轮942安装的过程中,无需识别传动齿轮942的类型,简化了传动齿轮942的组装方式。
齿圈930的具体结构,参考附图43,在本实施例中,齿圈930包括环形部931,以及分布在环形部931上且与施力块920传动配合的驱动齿,驱动齿932的设置方式为以下方式中的至少一种:
驱动齿932为分布在环形部内缘的内齿;
驱动齿932为分布在环形部931外缘的外齿;
驱动齿932为分布在环形部931轴向端面的侧齿。
在本实施例中,驱动齿932为分布在环形部931内缘的内齿,以下各实施例均在此基础上进行阐述。
为了降低齿圈930的重量,参考其中一实施例中,沿齿圈930的周向,环形部931开设有多个减重槽933。
环形部931内具有一定的空间,为了使压握器9100的结构更加紧凑,并减小压握器9100的尺寸,参考其中一实施例中,齿圈930环绕在多个施力块920的外围。同样的,齿圈930同样环绕在各传动齿轮942的外围。
在本实施例中,齿圈930的转动轴线与器械通道9101的延伸方向相互平行。器械通道9101具有一中心轴线,该中心轴线穿过器械通道9101的几何中心,各施力块920收放器械通道9101的过程中,器械通道9101的中心轴线位置不会发生改变。其中,器械通道9101的中心轴线与齿圈930的转动轴线大致呈一致(在本实施方式中,器械通道9101的中心轴线与齿圈930的转动轴线呈一致)。为了减小压握器9100在器械通道延伸方向的尺寸,参考其中一实施例中,传动齿轮942的转动轴线与齿圈930的转动轴线相互平行。
如果齿条941的运动路径不避让齿圈930,会缩短施力块920的运动路径,从而影响器械通道9101的收放,为了能够使齿条941的运动路径避让齿圈930,参考其中一实施例中,参考附图42,沿器械通道9101的延伸方向,齿条941与齿圈930呈错位设置。
参考附图44至附图46,在本实施例中,同一施力块920上所固定的齿条941为并排布置的两根,沿器械通道9101的延伸方向,各齿条941分别位于齿圈930的两侧。传动齿轮942通过驱动两齿条941带动施力块920运动,两齿条941的设置能够增加作用在施力块920沿通道延伸方向的施力点,以使施力块920的运行稳定。
在本实施例中,齿条941与施力块920之间一体设置,以能够增加齿条941与施力块920之间的结构强度,同时还能够降低齿条941与施力块920的加工工艺。当然,在其它实施例中,齿条941与施力块920之间也可以为分体设置,齿条941可以通过粘接或焊接等方式固定在施力块920。
在本实施例中,驱动齿932的数量是施力块920的数量的整数倍,以使齿圈930、传动齿轮942以及齿条941三者相位同步,从而保证施力块920同步运动。优选地,驱动齿932上齿的数量是施力块920的数量的8倍。在本实施方式中,驱动齿932的数量为96个,施力块920的数量为12个。当然,在其它实施例中,驱动齿932的数量为104个,施力块920的数量为8个。
参考附图44至附图45,在本实施例中,传动齿轮942采用1~3级的齿轮传动,其中首级与齿圈930相啮合,末级与齿条941相啮合。具体地,在本实施方式中,每套传动齿轮942中包括第一齿轮9421以及与第一齿轮9421同轴固定设置的第二齿轮9422,第一齿轮9421与齿圈930相啮合,第二齿轮9422与对应施力块920上的齿条941相啮合。
沿器械通道9101的径向,施力块920处于聚拢状态时,各齿条941背向施力块920的一临近第二齿轮9422;施力块920处于分离状态的极限位置时,各齿条941临近壳体910的内壁。在施力块920的运行时,施力块920避让第一齿轮9421以及第二齿轮9422,以避免第一齿轮9421以及第二齿轮9422干涉施力块920的运动。
参考附图44至附图46,在本实施例中,同一施力块920上,针对每根齿条941,分别配置一个第二齿轮9422。沿器械通道9101的延伸方向,每套传动齿轮942包括两第二齿轮9422,两第二齿轮9422分别位于第一齿轮9421的两侧,并分别通过一转轴与壳体910转动配合。两沿器械通道的延伸方向,第二齿轮9422至少局部位于齿圈930的两侧,且该局部位置与对应齿条941啮合。当然,在其它实施例中,同一施力块920上,针对每根齿条941,所有齿条941配置同一第二齿轮9422。
在本实施例中,第一齿轮9421的轴向长度为L1,第二齿轮9422的轴向长度为L2,且满足,L1:L2=(3~6):1。第一齿轮9421的轴向长度以及第二齿轮9422的轴向长度根据:第一齿轮9421的分度圆直径、第二齿轮9422的分度圆直径以及齿圈930的周向长度进行调整。
由于各施力块920均配置有一传动齿轮942,多个传动齿轮942均处于齿圈930的环形部931内时,为了避免各传动齿轮942之间相互干涉,对传动齿轮942的分度圆直径具有一定的限制,参考其中一实施例中,第一齿轮9421的分度圆直径为D1,第二齿轮9422的分度圆直径为D2,且满足D1:D2=1:(0.3~0.7)。优选地,D1:D2=1:(0.4~0.6)。
为了使齿圈930在较小的行程下,能够尽可能的驱使施力块920的行程,参考其中一实施例中,第一齿轮9421与齿圈930的传动比范围为1:(5~15);第二齿轮9422与齿圈930的传动比范围为1:(5~15)。例如,第一齿轮9421的齿数与第二齿轮9422的齿数均为10个;齿圈930的齿数为96个,第一齿轮9421与齿圈930的传动比为1:9.6;第二齿轮9422与齿圈930的传动比为1:9.6。第一齿轮9421的齿数与第二齿轮9422的齿数均为12个;齿圈930的齿数为104个,第一齿轮9421与齿圈30的传动比为3:26;第二齿轮9422与齿圈930的传动比为3:26。
参考附图36至附图40以及附图47及附图48,在本实施例中,压握器9100还包括用以驱动齿圈930 转动的驱动机构950。驱动机构950主要是为了带动齿圈930沿器械通道9101的中心方向转动运动,为了实现其基本功能可以在现有技术中选取电机、气缸、液压缸甚至是手动驱动部件,当驱动机构950直接输出的运动方式与齿圈930的运动方式不一致时,可以利用适当的传动部件对运动形式进行转行和传递。
参考附图36至附图40以及附图47及附图48,驱动把手951的具体结构,参考其中一实施例中,驱动把手951呈杆状结构,驱动把手951的一端与齿圈930连接,另一端朝远离器械通道9101的方向延伸。
在驱动把手951与齿圈930的连接方式上,参考其中一实施例中,壳体910开设有操作窗911,齿圈930的至少一部分暴露于操作窗911,且该部分与驱动把手951连接。其中,操作窗911与齿圈930的外缘相对布置,驱动把手951与齿圈930的外周连接,并背向齿圈930延伸,驱动扳手的延伸方向沿器械通道9101的径向延伸,以便于操作员操控驱动把手951。
在本实施例中,齿圈930的至少一部分为暴露于操作窗911的连接部934,驱动把手951可拆卸的固定于连接部934。连接部934主要是用于安装驱动把手951,为了实现其基本功能,连接部934可以是槽结构或凸起结构,驱动把手951可以采用螺栓、销钉等方式将驱动把手951固定在连接部934上。
参考附图47至附图48,在本实施例中,驱动把手951包括握持部9511与卡接部9512,齿圈930开设有与卡接部9512相配合的卡槽935,通过将卡接部9512卡接在卡槽935内,以将驱动把手951进行固定。
卡接部9512呈块状,卡接部9512的外轮廓与卡槽935的轮廓大致呈一致,以使卡接部9512置于卡槽935内时紧密配合。沿器械通道9101的的延伸方向,卡槽935的至少一侧呈开放设置,以便于卡接部9512进入到卡槽935内。
为了增加卡接部9512固定在卡槽935内牢固性,参考其中一实施例中,驱动机构950还包括遮挡板952,遮挡板952通过卡接、粘接或螺栓等方式固定在齿圈930,遮挡板952与齿圈930相互配合以限定卡槽935背向器械通道9101的开口大小。
沿延伸通道的周向,操作窗911的两相对侧能够限制驱动把手951的行程。在本实施例中,驱动把手951的行程所对应的圆心夹角为30度~120度,驱动把手951的行程根据驱动通道的收放程度所决定。优选地,驱动把手951的行程所对应的圆心夹角为30度~60度。在本实施方式中,驱动把手951的行程所对应的圆心夹角为45度。
当然,在其它实施例中,驱动机构950包括与齿圈930传动连接的电动件。电动件能够自动驱使齿圈930转动,以实现压握器9100自动化操作。电动件的设置上,参考其中一实施例中,电动件安装于壳体910,驱动齿圈930相对于壳体910转动。在本实施例中,电动件为电机。
电机具有一输出轴,输出轴安装有驱动齿轮。环形部931的外缘或环形部931轴向端面设置有驱动齿,驱动机构950还包括与驱动齿相啮合额的驱动齿轮,电动件通过驱动齿轮驱动齿圈930。
各施力块920相互配合构成器械通道9101的内壁,器械通道9101在收放的过程中,为了使器械通道9101在周向上保持连续性,参考附图44至附图46,本实施例中,施力块920由聚拢状态切换至分离状态时,沿器械通道9101的周向,相邻两施力块920之间始终相互抵靠。
施力块920的具体结构,参考附图44至附图46,本实施例中,施力块920朝向器械通道9101的一端具有折弯部921(大致为钩状);沿器械通道9101的周向,折弯部921具有处于外侧的第一边缘面9211以及处在内侧的第二边缘面9212;器械通道9101的内壁由各施力块920的第一边缘面9211与第二边缘面9212的交汇处围成。齿条941与施力块920背向折弯部921的一端连接;沿器械通道9101的延伸方向,施力块920的两相对侧分别与齿条941的外表面平齐设置;沿器械通道9101的周向,施力块920的两相对侧(不包括折弯部921)与齿条941外表面呈平齐设置。
参考附图44至附图46,在本实施例中,沿器械通道9101的周向,相邻两施力块920中,其中一施力块920的第一边缘面9211与另一施力块920的第二边缘面9212相贴合。具体地,参考其中一实施例中,沿器械通道9101的周向,相邻两施力块920中,第二边缘面9212遮挡板分第一边缘面9211,第一边缘面9211暴露于器械通道9101的部分为作用面;施力块920由聚拢状态切换至分离状态时,作用面沿沿器械通道9101的周向的长度逐渐增加。
在本实施例中,第一边缘面9211与第二边缘面9212均通过弧形过渡面9213与施力块920上相邻的其他部位衔接,以使第一边缘面9211与第二边缘面9212与施力块920上相邻的其他部位平滑过渡。
进一步地,施力块920的具体设置,参考其中一实施例中,针对同一施力块920,第一边缘面9211与第二边缘面9212沿器械通道9101的周向的夹角为30度。针对同一施力块920,施力块920的运动方向与第二边缘之间的夹角为105度,与第一边缘的夹角为75度。沿器械通道9101的周向,相邻两施力块920的运动方向之间的夹角为30度。
各施力块920的形状均相同,便于量产;在施力块920安装的过程中,无需识别施力块920的类型, 简化了施力块920的组装方式。
参考附图49至附图51,公开了壳体910的设置细节。参考一实施例中,壳体910为中空的圆盘状,器械通道9101贯通于圆盘状的轴线部位,壳体910的内部为安装室912,齿圈930以及施力块920均处在安装室912内。参考其中一实施例中,器械通道9101位于壳体910的中心位置。
为了限定施力块920的运动路径,参考附图50至附图51,本申请公开了导向单元913,导向单元913用以限制施力块920的运动方向。导向单元913是沿预定方向布置的导轨,对于导轨的形状和构造并没有严格限制,导轨可以是表面设有沿预定方向布置的槽或脊,也可以导向杆,或者是其他具有沿预定方向布置的外表面的部件,例如沿预定方向设置的挡板等。为了适应导向单元913,施力块920带有与导向单元913形状相应的滑动座,例如当导向单元913为导向杆时,对应的滑动座可以是套设在导向杆上的滑动套,当导向部件为条形槽时,对应的滑动座可以是嵌装在条形槽中的支撑块或支撑条。
参考附图50至附图51,本申请公开了导向单元913,导向单元913包括导向槽9132以及导向块,导向槽9132开设于壳体910与施力块920的其中一者;导向块设置于壳体910与施力块920的另一者,并与导向槽9132相配合。导向槽9132能够限定施力块920的运行路径,以使施力块920沿预设路径运动。在本实施方式中,导向槽9132开设于壳体910的内壁,导向块设置在施力块920。为了使施力块920的运行更加稳定,参考其中一实施例中,针对同一施力块920,导向单元913的数量为两套,各导向单元913分别位于施力块920沿器械通道9101的延伸方向的两相对侧。
参考附图50至附图51,在本实施例中,导向槽9132的形成方式为壳体910的内壁固定有两导向板9131,两导向板9131之间形成导向槽9132。导向板9131与壳体910之间呈一体设置,以能够加强导向板9131与壳体910的连接强度,同时还降低导向板9131与壳体910的加工工艺难度。
在本实施例中,两导向板9131呈平行设置,沿器械通道9101的周向,导向块的两相对侧分别与导向槽9132的内壁贴合,以避免施力块920在沿器械通道9101的周向发生晃动。
在本实施例中,导向块与施力块920之间呈一体设置,导向块为施力块920的部分结构,能够加强导向板9131与壳体910的连接强度,同时还能够降低导向板9131与壳体910的加工工艺难度。当然,在其它实施例中,导向块与施力块920之间呈分体设置,导向块通过焊接或粘接等方式固定在壳体910上。
导向块安装在导向槽9132内时,为了降低安装难度,参考其中一实施例,导向槽9132的开口朝向施力块920,且开口处具有扩口,扩口能够引导导向块进入到导向槽9132内。
在本实施例中,第二齿轮9422的至少部分结构位于导向槽9132内。第二齿轮9422的齿顶圆大于导向槽9132的宽度时,导向槽9132的局部外扩,以形成避让第二齿轮9422的避让区9133;第二齿轮9422的齿顶圆小于导向槽9132的宽度时,第二齿轮9422的部分结构可直接置于导向槽9132内。
在本实施例中,压握器9100还包括传动机构940,传动机构940位于安装室912内、且在齿圈930和各施力块920之间传动连接。在本实施例中,压握器9100还包括用以驱动齿圈930转动的驱动机构950,驱动机构950完全处在安装室912内,或驱动机构950的至少一部分处在安装室912外。
在本实施例中,壳体910为分体扣合结构,分体扣合结构为至少两部分,且各部分沿壳体910的轴向布置。各扣合部分包括呈开口设置的本体915以及扣合于本体915开口处的盖板916,本体915具有腔体,齿圈930、各施力块920以及各传动机构940均位于腔体内,器械通道9101依次贯通盖板916以及本体915。
参考附图40及附图52,在本实施例中,压握器9100还包括有底座960,壳体910可拆卸安装于底座960。压握器9100通过底座960固定在支撑台面上。压握器9100具有与支撑台面相配合的底面(例如图52中的A),以及与底面相对的顶面(例如图52中的B)。没有特殊说明的前提下,压握器9100的底面应理解为底座960的底面,由于压握器9100可以有多种放置角度,不同的放置角度时,竖直朝下的一面可能是A面也可能不是A面,因此本申请中的底面并非指实际使用中朝下的那一面。
壳体910固定在底座960上的形式,参考附图40,本实施例中,压握器9100还包括卡接结构961,壳体910通过卡接结构961可拆卸安装于底座960。卡接结构961是为了将壳体910固定在底座960,同时还能够便于壳体910相对底座960拆卸,根据壳体910与底座960的安装位置可以采用现有技术中的各类卡接方式,例如:螺母螺栓、粘接等。
参考附图40,本申请公开了卡接结构961,卡接结构961包括卡舌9611以及与卡舌9611相配合的卡槽9612,卡舌9611设置于底座960与壳体910两者中的其中一者;卡槽9612开设于底座960与壳体910两者中的另一者。壳体910安装在底座960的预定位置时,卡舌9611与卡槽9612相互卡接固定,以能够将壳体910固定在底座960;壳体910从底座960拆卸时,只需将卡舌9611与卡槽9612分离,即可将壳体910从底座960上拆卸。
参考附图40,本实施例中,底座960具有与壳体910相配合的安装槽962,卡接结构961位于安装 槽962的槽壁与壳体910之间。安装槽962背向底座960的底面开口,壳体910从安装槽962的开口进入,直至卡舌9611与卡槽9612相互卡接固定,此时壳体910的部分结构置于安装槽962内。
壳体910置于安装槽962内时:沿器械通道9101的延伸方向,壳体910的轴向两端分别与安装槽962对应的两相对侧贴合;安装槽962的底壁与壳体910的外缘相贴合(在本实施方式中,安装槽962的底壁为与壳体910相配合的弧形)。
卡舌9611与安装槽962的内壁一体成型,以加强卡舌9611与壳体910的连接强度,以及降低卡舌9611与壳体910之间的加工工艺。为了便于卡舌9611与卡槽9612卡接,卡舌9611和/或卡槽9612具有导向斜面,导向斜面能够引导卡舌9611进入到卡槽9612。
为了使壳体910稳定的固定在安装座上,参考其中一实施例中,卡接结构961至少为两组,两组卡接结构961分别位于壳体910轴向的两相对侧。在其它实施例中,处于壳体910同侧,卡接结构961同样设置有多组。
在本实施例中,压握器9100使用状态下,驱动把手951行程的最低点与最高点均位于壳体910纵剖面(如图52中的X)的同侧,纵剖面与底座960的底面垂直且过壳体910的轴线。参考其中一实施例中,压握器9100使用状态下,驱动板手行程的最高点与壳体910的最高点两者对应的圆心角为40度~60度。优选地,驱动板手行程的最高点与壳体910的最高点两者对应的圆心角为40度。
附图40,在本实施例中,压握器9100还包括限位部件970,限位部件970直接或间接干涉以下至少一者:齿圈930;施力块920;传动机构940;驱动机构950。
限位部件970主要是用限制各施力块920的收拢状态,因此对限位部件970的形状和具体结构并没有严格的限制。例如可以采用锁销、框架式结构或实心体部件,一般的原则是至少应有足够的力学强度,并保证与以上各部件之间的牢固连接。关于限位部件970的具体设置详见下文中关于限位部件970的具体描述,在此不予以展开。
压缩后的介入器械990需要装载到管件内,为了对管件进行支撑,参考附图40,本申请公开了托架980,托架980用于支撑介入器械990或输送系统,托架980安装于壳体910或底座960,并具有与器械通道9101位置相对应的支撑位。管件放置在支撑位处时,管件内的通道与器械通道相对布置,以便于介入器械990进入到管件内的通道。关于托架980的具体设置详见下文中关于托架980的具体描述,在此不予以展开。
参考附图36至附图40,本申请还提供一种压握器9100,包括:
壳体910,壳体910带有贯通的器械通道9101;
施力块920,施力块920有多个且活动安装在壳体910内,各施力块920绕器械通道9101分布,多个施力块920具有相对的聚拢状态(例如图38中各施力块920中的状态)或分离状态(例如图39中各施力块920中的状态),并在切换状态过程中相应的收放器械通道9101;
驱动把手951,与施力块920联动,用以同步驱动多个施力块920切换状态;
限位部件970,包括连接于壳体910的固定部971,以及与固定部971活动配合的调节部972,调节部972与运动至极限位置的驱动把手951相抵限位,且对应施力块920的聚拢状态。
介入器械990未进入到器械通道9101内时,多个施力块920处于分离状态。介入器械990进入到器械通道9101内后,驱动把手951驱动多个施力块920由分离状态逐渐向聚拢状态切换,在多个施力块920切换状态的过程中,多个施力块920会收缩器械通道9101,器械通道9101的内壁挤压介入器械990,器械通道9101的内壁将介入器械990均匀地缩小尺寸,直至驱动把手951与调节部972相抵,此时完成压握器9100对介入器械990的压缩。施力块920的聚拢状态需要调整时,驱动把手951的行程会发生改变,此时可对调节部972与固定部971的两者之间的位置进行调整。
参考附图40及附图52,在本实施例中,压握器9100还包括有底座960,壳体910可拆卸安装于底座960。其中,限位部件970的固定部971安装至底座960。压握器9100通过底座960固定在支撑台面上。压握器9100具有与支撑台面相配合的底面(例如图52中的A),以及与底面相对的顶面(例如图52中的B)。
限位部件970的调节路径与底座960的底面未处于垂直时,驱动把手951作用在限位部件970上的作用力会落在限位部件970与底座960的连接位置外,从而增大限位部件970与底座960的连接位置处的作用力,为了解决该技术问题,参考其中一实施例中,使用状态下,底座960的底面为支撑面,限位部件970的调节运动路径与支撑面呈垂直设置。
限位部件970采用杆件制成,杆件可以降低重量等原因可以选用管件,但是无论管件还是实心杆件,都是为了起到支撑作用,因此本文中的杆件并不严格的限定实心或空心结构,根据其空间走向可以是直杆或局部弯曲,同理截面形状也并不严格限制。
在本实施例中,限位部件970具有一长度方向,限位部件970沿自身长度方向的长度可调。以使限 位部件970快速调节到位。
为了使限位部件970的结构紧凑,在本实施例中,固定部971与调节部972相互插接,并能够滑动配合。固定部971可插接到调节部972的内部,或调节部972插接到固定部971的内部,以能够缩小限位部件970在径向方向的长度。
参考其中一实施例中,固定部971与调节部972两者中,其中一者为管状结构,另一者穿设在管状结构的内腔中。管状结构自带内腔,管状结构不仅具有一定支撑强度,同时还具有降低重量的效果。
为了防止调节部972在管状结构的内腔中自转,固定部971沿自身轴线设置有限位槽,调节部972通过自身局部内陷构成与限位槽相配合的限位部;
和/或,固定部971的内腔与调节部972的径向截面均呈非圆型。
在本实施例中,限位部件970还包括锁定机构973,用于保持固定部971和调节部972的相对位置。锁定机构973是为了将调节部972固定在固定部971,同时还能够时调节部972能够沿固定部971运动,可以采用现有技术中的各类锁紧方式。
锁定机构973的具体设置上,参考附图40,本实施例中,锁定机构973包括螺接件,螺接件设置在固定部971与调节部972两者中的其中一者,并能够与另一者相抵靠,用以保持固定部971和调节部972的相对位置。
螺接件包括螺柱9731以及固定在螺柱9731端部的操作部9732,固定部971上开设有与固定部971内部相连通的螺纹孔9733,螺柱9731螺接在螺纹孔9733内,并通过操作部9732操控螺柱9731。调节部972运动至预设设置时,操作人员握持并旋转操作部9732,将螺柱9731旋入到螺纹孔9733内,直至螺柱9731背向操作部9732的一端与调节部972相抵靠。
本实施例中,调节部972一端具有承托槽9721,并通过承托槽9721与驱动把手951相抵限位。承托槽9721能够增大调节部972与驱动把手951之间的接触面。承托槽9721大致呈U形,且U形的开口朝向驱动把手951。
驱动施力块920的方式可结合前文各实施例,例如,驱动把手951通过以下部件与施力块920联动:
齿圈930,齿圈930与壳体910转动配合,齿圈930同步驱动多个施力块920切换状态,驱动把手951与齿圈930间接或直接连接;
齿条941,固定于各施力块920;
传动齿轮942,转动安装于壳体910内,各齿条941与齿圈930之间通过一个或多个所述传动齿轮942啮合传动。
齿圈930采用啮合传动的方式同步驱动多个施力块920在聚拢状态和分离状态之间切换。啮合传动的方式可以提高齿圈930驱动多个施力块920的稳定性以及精度。齿圈930转动的过程中,会通过传动齿轮942同步带动齿条941运动,以能够驱动施力块920运动。本申请中齿圈930、传动齿轮942以及齿条941三者之间采用啮合传动的方式,能够使齿圈930稳定的驱动施力块920运动。
在本实施例中,传动齿轮942包括多套,每套对应一施力块920。各传动齿轮942的形状均相同,便于量产;在传动齿轮942安装的过程中,无需识别传动齿轮942的类型,简化了传动齿轮942的组装方式。
参考附图36至附图40,本申请还提供一种压握器9100,包括:
壳体910,壳体910带有贯通的器械通道9101;
施力块920,施力块920有多个且活动安装在壳体910内,各施力块920绕器械通道9101分布,多个施力块920具有相对的聚拢状态和分离状态,并在切换状态过程中相应的收放器械通道9101;
托架980,托架980包括相互连接的支撑部983以及承托部984,支撑部983与壳体910相配合,承托部984具有与器械通道9101位置相对应的支撑位。
介入器械990未进入到器械通道9101内时,多个施力块920处于分离状态。介入器械990进入到器械通道9101内后,驱动多个施力块920由分离状态逐渐向聚拢状态切换,在多个施力块920切换状态的过程会收缩器械通道9101,器械通道9101的内壁挤压介入器械990,器械通道9101的内壁将介入器械990均匀地缩小尺寸,直至完成压握器9100对介入器械990的压缩。
压握器9100完成对介入器械990的压缩后,驱使多个施力块920由聚拢状态向分离状态进行切换,然后将介入器械990移至位于托架980上的管件内。管件放置在支撑位处时,管件内的通道与器械通道相对布置,以便于介入器械990进入到管件内的通道。
参考附图40及附图52,在本实施例中,压握器9100还包括有底座960,壳体910可拆卸安装于底座960。其中,支撑部983也可以插接在底座960。压握器9100通过底座960固定在支撑台面上。压握器9100具有与支撑台面相配合的底面(例如图52中的A),以及与底面相对的顶面(例如图52中的B)。
在本实施例中,在壳体910的外壁设置有沿直线延伸的插槽,支撑部983滑动配合于插槽,以使支 撑部983的插入到插槽内后的运动方向呈直线设置。在其中一实施例中,插槽的一端作为入口端且临近器械通道9101,插槽的另一端向底座960方向延伸。
在本实施例中,插槽的延伸方向为器械通道的径向,插槽入口与器械通道9101对正。压握器9100在使用状态下,插槽位于器械通道9101的下方。
在本实施例中,支撑部983与承托部984之间呈一体设置,以能够加强支撑部983与承托部984的结构强度,以及降低托架980的工艺难度。当然,在其它实施例中,支撑部983与承托部984之间也可以呈分体设置,支撑部983与承托部984之间可通过螺栓或焊接等方式进行固定。
在本实施中,支撑位沿器械通道9101方向延伸,并形成与器械通道9101相对接承载托槽981。其中,为了便于观察支撑位处的管件,并能够及时对管件进行调整,参考其中一实施例中,托架980的顶部为截面呈U形的半筒结构,该半筒结构顶面开放,内部作为承载托槽981。
为了对管体进一步夹紧的外侧进行防护,参考附图40,在本实施例中,承载托槽981内设有弹性衬垫982,弹性衬垫982安装于承载托槽981的内壁。弹性衬垫982的材质为硅胶。当然,在其它一些实施例中,承载托槽981的内壁也可以由硅胶材质制成,此时可省略弹性衬垫982的设置。
弹性衬垫与承载托槽的固定形式上,参考附图40,在本实施例中,弹性衬垫982通过卡扣、粘结或紧固件的方式安装于承载托槽981内,以便于弹性衬垫982与承载托槽981的拆装。
在本实施例中,承载托槽981内壁与弹性衬垫982两者中,其中一者设置有凹槽9821,另一者设置有与凹槽9821配合的卡块9811。沿承载托槽的延伸方向,卡块9811以及凹槽9821设置有多个,各卡块9811分别卡接在对应的凹槽9821内。
参考附图40,在本实施例中,支撑部983为板状,且贴靠于壳体910的外壁。考附图40,在本实施例中,支撑部983具有一长度方向,支撑部983沿长度方向的一端与插槽配合,另一端与承托部984连接。
为了加强半筒结构与支撑部之间的连接强度,在本实施例中,在所述半筒结构的底部与所述支撑部之间固定有加强肋。加强肋呈板状,半筒结构的延伸方向与支撑部的延伸方向呈垂直设置,加强肋位于半筒结构与支撑部两者的连接处时,加强肋板的两个侧边分别与半筒结构以及支撑部贴合固定。
驱动施力块920的方式可结合前文各实施例,例如压握器9100还包括:
齿圈930,齿圈930与壳体910转动配合,齿圈930同步驱动多个施力块920切换状态;
齿条941,固定于各施力块920;
传动齿轮942,转动安装于壳体910内,各齿条941与齿圈930之间通过一个或多个所述传动齿轮942啮合传动。
齿圈930采用啮合传动的方式同步驱动多个施力块920在聚拢状态和分离状态之间切换。啮合传动的方式可以提高齿圈930驱动多个施力块920的稳定性以及精度。齿圈930转动的过程中,会通过传动齿轮942同步带动齿条941运动,以能够驱动施力块920运动。本申请中齿圈930、传动齿轮942以及齿条941三者之间采用啮合传动的方式,能够使齿圈930稳定的驱动施力块920运动。
在本实施例中,传动齿轮942包括多套,每套对应一施力块920。各传动齿轮942的形状均相同,便于量产;在传动齿轮942安装的过程中,无需识别传动齿轮942的类型,简化了传动齿轮942的组装方式。
参考附图36至附图40及附图53至附图54,本申请还提供一种压握器9100,包括:
壳体910,壳体910带有贯通的器械通道9101;
施力块920,施力块920有多个且活动安装在壳体910内,各施力块920绕器械通道9101分布,多个施力块920具有相对的聚拢状态和分离状态,并在切换状态过程中相应的收放器械通道9101;
托架980,托架980以磁吸方式可拆卸安装于壳体910,并具有与器械通道9101位置相对应的支撑位。
在本实施例中,托架980与壳体910两者中,其中一者设置有磁吸件985,另一者设置有与磁吸件985相磁吸配合的配合件986。托架980朝向壳体910的一端与壳体910贴合,磁吸件985设置在托架980与壳体910贴合的贴合面处。在本实施例中,配合件986为铁磁性材料。
为了使托架980固定在壳体910上更加牢固,在本实施例中,磁吸件985的数量为多个,至少两个磁吸件985在器械通道的周向上错位布置。进一步地,在本实施例中,各磁吸件985沿器械通道的周向依次布置。
在本实施例中,托架980与壳体910两者相贴合的端面均具有安装位,磁吸件985与配合件986固定在对应的安装位。为了降低托架980与壳体910之间的间隙,参考其中一实施例中,安装位为槽结构,磁吸件985或配合件986嵌装于对应的槽结构,以能够使托架980的端面与壳体910的外面相贴靠。在本实施方式中,支撑位沿器械通道9101方向延伸,并形成与器械通道9101相对接承载托槽981。
磁吸件985与配合件986两者中,其中一者外凸于安装位,另一者内嵌于槽结构的底部,外凸于安装位的部件能够伸入对应的槽结构内,并与位于槽结构内的部件吸和。在本实施方式中,磁吸件985安装于托架980,配合件986安装于壳体910,磁吸件985外凸于托架980的端面,配合件986嵌在槽结构底部。托架980安装在壳体910上时,托架980上的磁吸件985伸入到壳体910上的槽结构,并与槽结构内的配合件986相磁吸,以将托架980固定在壳体910上。
托架980的具体设置上,参考其中一实施例中,参考附图54,托架980包括:
截面呈U形的半筒结构989,该半筒结构989顶面开放,内部作为承载托槽981;
以磁吸方式与壳体910贴靠固定的贴合部987,贴合部987处在器械通道9101的外围且沿器械通道9101的周向延伸;
固定连接在半筒结构989与贴合部987之间的扩口段988,沿器械通道轴向,扩口段988的小口端连接至半筒结构989的中部,大口端连接至贴合部987。
半筒结构989在沿器械通道的径向的截面呈U形;压握器9100在使用状态下,该U形的开口朝上设置,以使半筒结构989的顶面开放。安装位置于贴合部987朝向壳体910的一侧,沿器械通道的径向,贴合部987的尺寸均大于半筒结构989壁厚与扩口段988的壁厚,以能够增大托架980与壳体910之间的接触面。参考其中一实施例中,贴合部987对应的圆心角为120度~180度,贴合部987处在器械通道9101的下半部。贴合部987呈板状,贴合部987与半筒结构989之间呈一体设置。
扩口段988呈半筒状,扩口段988在沿器械通道的径向的截面呈U形,扩口段988在压握器9100在使用状态下的顶部呈开放。沿器械通道的延伸方向,扩口段988内的通道由半筒结构989的中部向壳体910方向逐渐增大,以在扩口段988的两端形成大口端与小口端。
扩口段988的小口端绕半筒结构989周向设置,并与半筒结构的外侧壁相连,扩口段988的大口端与半筒结构989之间具有的一定间隙。半筒结构989的顶面与扩口段988的顶面大致平齐设置,以使半筒结构989的部分结构位于扩口段988内。参考其中一实施例中,沿器械通道径向,半筒结构989处在器械通道9101中部,且与贴合部987之间留有避让间隙。
为了对管体进一步夹紧的外侧进行防护,参考附图54,在本实施例中,承载托槽981内设有弹性衬垫982,弹性衬垫982安装于承载托槽981的内壁。弹性衬垫982的材质为硅胶。当然,在其它一些实施例中,承载托槽981的内壁也可以由硅胶材质制成,此时可省略弹性衬垫982的设置。
弹性衬垫与承载托槽的固定形式上,参考附图54,在本实施例中,弹性衬垫982通过卡扣、粘结或紧固件的方式安装于承载托槽981内,以便于弹性衬垫982与承载托槽981的拆装。
在本实施例中,承载托槽981内壁与弹性衬垫982两者中,其中一者设置有凹槽9821,另一者设置有与凹槽9821配合的卡块9811。沿承载托槽981的延伸方向,卡块9811以及凹槽9821设置有多个,各卡块9811分别卡接在对应的凹槽9821内。
驱动施力块920的方式可结合前文各实施例,例如,压握器9100还包括:
齿圈930,齿圈930与壳体910转动配合,齿圈930同步驱动多个施力块920切换状态;
齿条941,固定于各施力块920;
传动齿轮942,转动安装于壳体910内,各齿条941与齿圈930之间通过一个或多个所述传动齿轮942啮合传动。
齿圈930采用啮合传动的方式同步驱动多个施力块920在聚拢状态和分离状态之间切换。啮合传动的方式可以提高齿圈930驱动多个施力块920的稳定性以及精度。齿圈930转动的过程中,会通过传动齿轮942同步带动齿条941运动,以能够驱动施力块920运动。本申请中齿圈930、传动齿轮942以及齿条941三者之间采用啮合传动的方式,能够使齿圈930稳定的驱动施力块920运动。
在本实施例中,传动齿轮942包括多套,每套对应一施力块920。各传动齿轮942的形状均相同,便于量产;在传动齿轮942安装的过程中,无需识别传动齿轮942的类型,简化了传动齿轮942的组装方式。
参考附图55至附图58,本申请一实施例还提供一种介入器械990的装载方法,包括:
提供以上各实施例的压握器9100;
将介入器械990放置在器械通道9101内;
旋转齿圈930,齿圈930驱动多个施力块920同步运动压缩介入器械990;
将压缩后的介入器械990转移至用于装载介入器械990的管件内。
介入器械990装载前:管件预先安装在托架980处,各施力块920均处于分离状态;将介入器械990放置在器械通道9101内后,扳动驱动把手951,驱动把手951带动齿圈930旋转、以驱动多个施力块920向收拢状态切换,此时多个施力块920同步运动压缩介入器械990,直至将介入器械990压缩到位。介入器械990压缩到位后,推动介入器械990,以将介入器械990压缩部分转移至管件内。为了便于介入器械 990装载至管件内,参考其中一实施例中,管件预先定位,且位置与器械通道9101对正。管件的空腔与器械通道9101对正。
参考附图56,介入器械990在具体形状上没有严格限制,例如可包括支架991,在支架991的轴向一端带有连接耳992,连接耳992可以是末端带有一膨胀头。支架991为径向可压缩或扩张结构,一般是采用切割或编制方式形成的网筒状结构。在本实施例中,介入器械990为人工心脏瓣膜。
介入器械990具有一轴向,介入器械990沿自身的轴向的各部分的径向尺寸不同时,参考其中一实施例中,压缩介入器械990时,根据介入器械990不同位置的径向尺寸,采用逐级压缩方式。介入器械990根据径向尺寸的不同分为多段,然后通过压握器9100对介入器械990的各段分别压缩,直至介入器械990能够装载至管件内。
参考附图56至附图57,在本实施例中,介入器械990沿自身的轴向包括第一段993与第二段994,第一段993的径向尺寸大于第二段994的径向尺寸;逐级压缩方式包括:介入器械990内穿设芯棒,将第一段993的径向尺寸压缩至与第二段994的径向尺寸大致相等。其中,第一段993的轴线与第二段994的轴线大致趋于一致。
在对介入器械990进行压缩前,需要将干燥的介入器械990湿润。通过夹具夹持介入器械990的第二段994,将第一段993放置在器械通道9101内,夹具抵靠壳体910以限制第一段993在器械通道9101内的位置,然后调整介入器械990,使介入器械990的轴线与器械通道9101的轴线相共线,最后对第一段993进行压缩。夹具在具体形状上没有严格限制,例如夹具呈筒状,介入器械990的第二段994置于夹具的内部。
将压缩后的介入器械990从夹具上拆卸下来,为了能够减小介入器械990的径向尺寸,参考其中一实施例中,逐级压缩方式还包括:介入器械内穿设芯棒,再将第一段993和第二段994同步压缩至芯棒相贴合。介入器械990在被压缩前,在介入器械990的外侧套设保护套,保护套能够避免压握器9100对介入器械990的损伤。芯棒在具体形状上没有严格限制,例如芯棒呈筒状。
参考附图58,在本实施例中,压缩后的介入器械990装载至输送系统9103。输送系统9103可被用于治疗心脏瓣膜(例如,二尖瓣,主动脉瓣,三尖瓣、腔静脉瓣膜、肺动脉瓣)。该治疗可以包括,但不限于,瓣膜置换术,瓣膜修复或影响瓣膜功能的其他手术。
参考附图58,在本实施例中,输送系统9103包括由内而外同轴布置的两根管件,以及驱动两根管件相对运动的控制手柄,各管件远端用于相互配合操作介入器械990,各管件的近端连接至控制手柄,在控制手柄处采用液压方式驱动各管件相对运动。
本申请在控制手柄处采用液压方式驱动各管件可实现对介入器械的操作,例如释放、切割、旋转、抓取或回收等,整个液压系统配置在近端,更便于现场调试或组装,即使出现非预期状况,也便于体外解决,而若在远端配置液压机构则对设备体积和安全性提出更为苛刻的要求,能够调控的运动形式和方向也因设备问题而受限。
两根管件分别为由内而外依次滑动嵌套的第一管件9104和第二管件9105,第一管件9104的远端用于放置介入器械990,第二管件9105用于包裹或释放介入器械990。第一管件9104的最远端处为引导头9106,在邻近引导头9106近端处还固定有安装头9107,介入器械990装载时位于引导头9106和安装头9107之间且径向压缩,介入器械990一般均带有与安装头9107相连接的连接耳992,装载时连接耳992与安装头9107配合以限制介入器械990的轴向位置。
在本实施例中,介入器械990内穿设输送系统9103的第一管件9104,压缩介入器械990与第一管件9104相贴合,并将压缩后的介入器械990推送至输送系统9103的第二管件9105内。将介入器械990装配在第一管件9104,将第二管件9105放置在托架980上,并压缩介入器械990至预设尺寸后,控制手柄驱动第一管件9104相对于第二管件9105轴向滑动后撤,使得介入器械990置于第二管件9105内。在对介入器械990进行压缩时,可压缩一段时间(例如10秒)后,对介入器械990进行查看。
第一管件9104和第二管件9105为介入器械990领域常用塑料管,或金属管,比如切割海波管或金属编织管或金属编织管与海波管混合管材。第一管件9104和/或第二管件9105也可以是多层复合管。
以上实施例的各技术特征可以进行任意的组合,为使描述简洁,未对上述实施例中的各技术特征所有可能的组合都进行描述,然而,只要这些技术特征的组合不存在矛盾,都应当认为是本说明书记载的范围。不同实施例中的技术特征体现在同一附图中时,可视为该附图也同时披露了所涉及的各个实施例的组合例。
以上实施例仅表达了本申请的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对申请专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本申请构思的前提下,还可以做出若干变形和改进,这些都属于本申请的保护范围。

Claims (96)

  1. 压缩介入器械的压握器,其特征在于,包括:
    壳体,所述壳体带有贯通的器械通道;
    施力块,所述施力块有多个且活动安装在所述壳体内,各施力块绕所述器械通道分布,多个施力块具有相对的聚拢状态和分离状态,并在切换状态过程中相应的收放器械通道;
    齿圈,所述齿圈与所述壳体转动配合,所述齿圈同步驱动多个施力块切换状态。
  2. 如权利要求1所述压缩介入器械的压握器,其特征在于,所述压握器还包括传动机构,所述传动机构在所述齿圈和各施力块之间传动连接。
  3. 如权利要求2所述压缩介入器械的压握器,其特征在于,所述传动机构包括:
    齿条,设置于各施力块;
    传动齿轮,转动安装于所述壳体内,各齿条与所述齿圈之间通过一个或多个所述传动齿轮啮合传动。
  4. 如权利要求1所述压缩介入器械的压握器,其特征在于,所述齿圈的转动轴线与所述器械通道的延伸方向相互平行。
  5. 如权利要求3所述压缩介入器械的压握器,其特征在于,所述传动齿轮的转动轴线与所述齿圈的转动轴线相互平行。
  6. 如权利要求1所述压缩介入器械的压握器,其特征在于,所述齿圈包括环形部,以及分布在环形部上且与所述施力块传动配合的驱动齿,所述驱动齿的设置方式为以下方式中的至少一种:
    所述驱动齿为分布在环形部内缘的内齿;
    所述驱动齿为分布在环形部外缘的外齿;
    所述驱动齿为分布在环形部轴向端面的侧齿。
  7. 如权利要求6所述压缩介入器械的压握器,其特征在于,所述驱动齿的数量是所述施力块的数量的整数倍。
  8. 如权利要求7所述压缩介入器械的压握器,其特征在于,所述驱动齿的数量是所述施力块的数量的8倍。
  9. 如权利要求1所述压缩介入器械的压握器,其特征在于,所述齿圈包括环形部,沿齿圈的周向,所述环形部开设有多个减重槽。
  10. 如权利要求1所述压缩介入器械的压握器,其特征在于,所述齿圈环绕在多个施力块的外围。
  11. 如权利要求3所述压缩介入器械的压握器,其特征在于,沿器械通道的延伸方向,所述齿条与所述齿圈呈错位设置。
  12. 如权利要求3所述压缩介入器械的压握器,其特征在于,同一施力块上所固定的齿条为并排布置的两根,沿器械通道的延伸方向,各齿条分别位于所述齿圈的两侧。
  13. 如权利要求3所述压缩介入器械的压握器,其特征在于,所述传动齿轮采用1~3级的齿轮传动,按照传动次序,其中首级与所述齿圈相啮合,末级与所述齿条相啮合。
  14. 如权利要求3所述压缩介入器械的压握器,其特征在于,所述传动齿轮包括多套,每套对应一施力块。
  15. 如权利要求14所述压缩介入器械的压握器,其特征在于,每套传动齿轮中包括第一齿轮以及与所述第一齿轮同轴固定设置的第二齿轮,所述第一齿轮与所述齿圈相啮合,第二齿轮与对应施力块上的齿条相啮合。
  16. 如权利要求15所述压缩介入器械的压握器,其特征在于,同一施力块上,针对每根齿条,分别配置一个第二齿轮,或所有齿条配置同一第二齿轮。
  17. 如权利要求16所述压缩介入器械的压握器,其特征在于,所述第一齿轮的分度圆直径为D1,所述第二齿轮的分度圆直径为D2,且满足D1:D2=1:(0.3~0.7)。
  18. 如权利要求16所述压缩介入器械的压握器,其特征在于,所述第一齿轮的轴向长度为L1,所述第二齿轮的轴向长度为L2,且满足,L1:L2=(3~6):1。
  19. 如权利要求15所述压缩介入器械的压握器,其特征在于,所述第一齿轮与所述齿圈的传动比范围为1:(5~15);
    所述第二齿轮与所述齿圈的传动比范围为1:(5~15)。
  20. 如权利要求19所述压缩介入器械的压握器,其特征在于,所述第一齿轮与所述齿圈的传动比为1:9.6;
    所述第二齿轮与所述齿圈的传动比为1:9.6。
  21. 如权利要求19所述压缩介入器械的压握器,其特征在于,所述第一齿轮与所述齿圈的传动比为3: 26;
    所述第二齿轮与所述齿圈的传动比为3:26。
  22. 如权利要求3所述压缩介入器械的压握器,其特征在于,所述齿条与所述施力块之间一体或分体设置。
  23. 如权利要求1所述压缩介入器械的压握器,其特征在于,所述介入器械为人工心脏瓣膜。
  24. 如权利要求1所述压缩介入器械的压握器,其特征在于,所述压握器还包括用以驱动所述齿圈转动的驱动机构;所述驱动机构包括以下方式的至少一种:
    方式A,所述驱动机构为与所述齿圈间接或直接连接的驱动把手;
    方式B,所述驱动机构为与所述齿圈传动连接的电动件。
  25. 如权利要求24所述压缩介入器械的压握器,其特征在于,所述电动件安装于所述壳体,驱动所述齿圈相对于所述壳体转动。
  26. 如权利要求25所述压缩介入器械的压握器,其特征在于,所述电动件为电机。
  27. 如权利要求24所述压缩介入器械的压握器,其特征在于,所述壳体开设有操作窗,所述齿圈的至少一部分暴露于所述操作窗,且该部分与所述驱动把手连接。
  28. 如权利要求27所述压缩介入器械的压握器,其特征在于,所述齿圈的至少一部分为暴露于所述操作窗的连接部,所述驱动把手可拆卸的固定于所述连接部。
  29. 如权利要求24所述压缩介入器械的压握器,其特征在于,所述驱动把手的行程所对应的圆心夹角为30度~120度。
  30. 如权利要求29所述压缩介入器械的压握器,其特征在于,所述驱动把手的行程所对应的圆心夹角为30度~60度。
  31. 如权利要求30所述压缩介入器械的压握器,其特征在于,所述驱动把手的行程所对应的圆心夹角为40度。
  32. 如权利要求24所述压缩介入器械的压握器,其特征在于,所述驱动把手包括握持部与卡接部,所述齿圈开设有与所述卡接部相配合的卡槽。
  33. 如权利要求24所述压缩介入器械的压握器,其特征在于,所述驱动把手呈杆状结构,所述驱动把手的一端与所述齿圈连接,另一端朝远离器械通道的方向延伸。
  34. 如权利要求1所述压缩介入器械的压握器,其特征在于,所述施力块由聚拢状态切换至分离状态时,沿器械通道的周向,相邻两施力块之间始终相互抵靠。
  35. 如权利要求1所述压缩介入器械的压握器,其特征在于,所述施力块朝向所述器械通道的一端具有折弯部;
    沿器械通道的周向,所述折弯部具有处于外侧的第一边缘面以及处在内侧的第二边缘面;
    所述器械通道的内壁由各施力块的第一边缘面与第二边缘面的交汇处围成。
  36. 如权利要求35所述压缩介入器械的压握器,其特征在于,沿器械通道的周向,相邻两施力块中,其中一施力块的第一边缘面与另一施力块的第二边缘面相贴合。
  37. 如权利要求35所述压缩介入器械的压握器,其特征在于,沿器械通道的周向,相邻两施力块中,所述第二边缘面遮挡板分所述第一边缘面,所述第一边缘面暴露于所述器械通道的部分为作用面;
    所述施力块由聚拢状态切换至分离状态时,所述作用面沿沿器械通道的周向的长度逐渐增加。
  38. 如权利要求35所述压缩介入器械的压握器,其特征在于,所述第一边缘面与所述第二边缘面均通过弧形过渡面与所述施力块上相邻的其他部位衔接。
  39. 如权利要求35所述压缩介入器械的压握器,其特征在于,针对同一施力块,所述第一边缘面与所述第二边缘面沿器械通道的周向的夹角为30度,所述施力块的运动方向与所述第二边缘之间的夹角为105度,与所述第一边缘的夹角为75度。
  40. 如权利要求1所述压缩介入器械的压握器,其特征在于,沿器械通道的周向,相邻两施力块的运动方向之间的夹角为30度。
  41. 如权利要求1所述压缩介入器械的压握器,其特征在于,所述壳体为中空的圆盘状,所述器械通道贯通于所述圆盘状的轴线部位,所述壳体的内部为安装室,所述齿圈以及施力块均处在所述安装室内。
  42. 如权利要求1所述压缩介入器械的压握器,其特征在于,所述压握器还包括安装于所述壳体的弹片;
    所述齿圈沿自身周向设置有多个与所述弹片相配合的卡齿,所述弹片能够越过所述卡齿、并振动或发出声音。
  43. 如权利要求1所述压缩介入器械的压握器,其特征在于,至少一施力块上带有指示标识,所述壳体开设有与所述指示标识位置相应的视窗。
  44. 如权利要求43所述压缩介入器械的压握器,其特征在于,所述指示标识与所述施力块为一体结构或分体固定,沿壳体轴向,所述指示标识位于所在施力块的一侧。
  45. 如权利要求44所述压缩介入器械的压握器,其特征在于,所述分体固定的方式为插接和/或粘结。
  46. 如权利要求45所述压缩介入器械的压握器,其特征在于,所述指示标识与所述施力块两者中,其中一者设置有插接部,另一者设置有与所述插接部相配合的插槽。
  47. 如权利要求43所述压缩介入器械的压握器,其特征在于,所述视窗为条形,且沿所述指示标识所在的施力块的运动方向延伸。
  48. 如权利要求43所述压缩介入器械的压握器,其特征在于,带有指示标识的施力块的运动方向与所述压握器的底面平行。
  49. 如权利要求43所述压缩介入器械的压握器,其特征在于,所述视窗镂空于所述壳体,且在镂空部位设置有透明盖板。
  50. 如权利要求49所述压缩介入器械的压握器,其特征在于,所述透明盖板扣合于所述壳体的镂空部位。
  51. 如权利要求43所述压缩介入器械的压握器,其特征在于,所述指示标识的端部伸出所述视窗形成指示部,所述指示部的宽度大于所述视窗的宽度。
  52. 如权利要求51所述压缩介入器械的压握器,其特征在于,所述壳体的具有环绕所述视窗的凹陷区,所述指示部置于所述凹陷区;
    所述视窗镂空于所述壳体,且在镂空部位设置有透明盖板,所述透明盖板扣合于所述凹陷区,并与所述壳体的周边部位等高。
  53. 如权利要求43所述压缩介入器械的压握器,其特征在于,所述指示标识至少具有两个,沿壳体轴向,至少两个指示标识分别位于所述壳体的两相对侧。
  54. 如权利要求53所述压缩介入器械的压握器,其特征在于,所述指示标识为两个,且固定于同一施力块。
  55. 如权利要求51所述压缩介入器械的压握器,其特征在于,所述指示部具有与所述壳体不同的颜色。
  56. 如权利要求49所述压缩介入器械的压握器,其特征在于,所述壳体和/或所述透明盖板上设有可与指示标识位移相对应的参照刻度。
  57. 一种压缩介入器械的压握器,包括:
    壳体,所述壳体呈中空设置,并带有贯通的器械通道;
    多个施力块,各施力块活动安装于所述壳体内,并绕所述器械通道分布,多个施力块能够相对的聚拢和分离,并相应的收放器械通道;
    齿圈,所述齿圈转动安装于所述壳体内且处在所述器械通道的外围,所述齿圈传动连接于所述各施力块,并同步驱动多个施力块;
    驱动轴,至少一部分处在所述壳体内并与所述齿圈联动,至少一部分用于连接动力源。
  58. 如权利要求57所述压缩介入器械的压握器,其特征在于,所述驱动轴的转动轴线与所述齿圈的转动轴线平行。
  59. 如权利要求57所述压缩介入器械的压握器,其特征在于,所述动力源为旋钮和/或电机;
    其中所述旋钮的至少一部分暴露于所述壳体,所述旋钮与所述驱动轴为一体或分体结构;
    所述电机处在壳体内部。
  60. 如权利要求59所述压缩介入器械的压握器,其特征在于,沿器械通道的延伸方向,所述压握器具有相对的正面和背面,所述旋钮处在所述壳体的正面,且所述壳体的正面还安装有托架。
  61. 如权利要求59所述压缩介入器械的压握器,其特征在于,所述旋钮的至少一部分处在所述壳体的外部,且该部分与所述壳体的外壁之间抵压有弹性垫片。
  62. 如权利要求61所述压缩介入器械的压握器,其特征在于,所述弹性垫片呈环形,所述弹性垫片套设于所述旋钮,且所述弹性垫片的轴向一侧与所述壳体相贴靠,另一侧与所述旋钮相贴靠。
  63. 如权利要求62所述压缩介入器械的压握器,其特征在于,所述壳体的外壁具有与所述旋钮位置对应内陷区,所述弹性垫片置于所述内陷区内。
  64. 如权利要求57所述压缩介入器械的压握器,其特征在于,沿所述齿圈的径向,所述驱动轴处在所述齿圈的外侧。
  65. 如权利要求57所述压缩介入器械的压握器,其特征在于,所述驱动轴与所述齿圈之间直接传动或通过联动组件传动;
    所述联动组件采用齿轮组或蜗轮蜗杆的方式传动。
  66. 如权利要求65所述压缩介入器械的压握器,其特征在于,所述齿轮组包括啮合传动的多个齿轮, 且各个齿轮的转动轴线均与所述驱动轴平行。
  67. 如权利要求65所述压缩介入器械的压握器,其特征在于,所述齿圈包括环形部,所述环形部的外周分布有与所述联动组件啮合的驱动齿。
  68. 如权利要求66所述压缩介入器械的压握器,其特征在于,所述齿轮的数量的2~5个。
  69. 如权利要求65所述压缩介入器械的压握器,其特征在于,所述齿轮组包括:
    第三齿轮,所述第三齿轮与所述驱动轴同轴线固定设置;
    第四齿轮,所述第四齿轮与所述壳体转动配合,所述第四齿轮啮合传动于所述第三齿轮与所述齿圈之间。
  70. 如权利要求69所述压缩介入器械的压握器,其特征在于,所述第三齿轮与所述第四齿轮均处于所述壳体内,沿所述齿圈的径向,所述第三齿轮与所述第四齿轮均处于所述齿圈的外侧。
  71. 如权利要求69所述压缩介入器械的压握器,其特征在于,所述齿圈包括环形部,所述环形部的外周分布有与所述联动组件啮合的驱动齿;
    所述第四齿轮包括至少同轴设置的第一单元齿和第二单元齿,分别与所述第三齿轮和所述驱动齿相啮合;
    所述第一单元齿和第二单元齿的齿厚比为1:0.7~1.5。
  72. 如权利要求71所述压缩介入器械的压握器,其特征在于,沿齿圈的轴向,所述齿圈外周缘局部偏移、并形成偏移区,所述驱动齿位于所述偏移区;
    所述齿圈在所述偏移区的正面形成避让区,所述避让区容纳所述第一单元齿或所述第二单元齿。
  73. 一种压缩介入器械的压握器,其特征在于,包括:
    壳体,所述壳体呈中空设置,并带有贯通的器械通道;
    多个施力块,各施力块活动安装于所述壳体内,并绕所述器械通道分布,多个施力块能够相对的聚拢和分离,并相应的收放器械通道;
    齿圈,所述齿圈转动安装于所述壳体内且处在所述器械通道的外围,所述齿圈传动连接于所述各施力块,并同步驱动多个施力块,所述齿圈设置有多处限位结构,多处限位结构在所述齿圈的周向位置不同;
    档位件,所述档位件相对于所述壳体活动安装,所述档位件具有多个工作位,在各工作位下与相应的限位结构配合、限制所述齿圈的转动。
  74. 如权利要求73所述压缩介入器械的压握器,其特征在于,各限位结构在所述齿圈的径向位置不同;所述档位件沿齿圈的径向运动至对应的工作位。
  75. 如权利要求74所述压缩介入器械的压握器,其特征在于,所述限位结构为设置在所述齿圈的限位台阶,所述档位件在工作位下与相应的限位台阶沿齿圈周向相抵限位。
  76. 如权利要求73所述压缩介入器械的压握器,其特征在于,所述压握器还包括用于驱动所述档位件的驱动机构,所述驱动机构包括:
    操作钮,所述操作钮转动安装于所述壳体;
    传动件,所述传动件与所述操作钮联动,并能够驱使所述档位件在各工作位切换;
    弹性件,所述弹性件作用于所述档位件,以保持所述档位件处于工作位。
  77. 如权利要求76所述压缩介入器械的压握器,其特征在于,所述传动件为凸轮,所述凸轮的转动轴线与所述档位件的运动方向垂直。
  78. 如权利要求76所述压缩介入器械的压握器,其特征在于,所述操作钮处在壳体的正面,并与处于同侧的视窗设置于所述操作通道的两侧。
  79. 如权利要求76所述压缩介入器械的压握器,其特征在于,所述传动件为凸轮,所述档位件至少包括与所述凸轮的外周侧抵靠的驱动部,与所述限位结构配合的锁定部,以及与所述弹性件连接的传动部;
    沿所述齿圈的轴向,所述驱动部与所述锁定部位于所述档位件的两相对侧。
  80. 如权利要求79所述压缩介入器械的压握器,其特征在于,所述弹性件为压簧,所述弹性件抵压在所述传动部与所述壳体的内壁之间,并对所述档位件的径向内侧施力。
  81. 如权利要求80所述压缩介入器械的压握器,其特征在于,所述档位件呈块状,所述档位件位于所述壳体内壁与所述齿圈之间。
  82. 如权利要求81所述压缩介入器械的压握器,其特征在于,所述驱动部朝向所述档位件的径向外侧;
    所述锁定部的朝向与档位件的朝向呈垂直设置。
  83. 如权利要求81所述压缩介入器械的压握器,其特征在于,所述档位件沿齿圈轴向的两相对侧具有第一槽结构与第二槽结构,所述第一槽结构容纳所述齿圈的部分结构,所述第二槽结构容纳所述凸轮,且所述第二槽结构的其中一内壁为所述驱动部。
  84. 如权利要求83所述压缩介入器械的压握器,其特征在于,所述档位件的径向内侧具有第三槽结构,所述第三槽结构的底壁为所述传动部;
    所述档位件还带有固定于所述第三槽结构内的柱体,所述弹性件的端部套设于所述柱体的外侧。
  85. 如权利要求84所述压缩介入器械的压握器,其特征在于,所述档位件具有相对的顶面与底面,所述锁定部位于所述档位件的顶面,并位于所述第一槽结构与所述第三槽结构之间。
  86. 如权利要求76所述压缩介入器械的压握器,其特征在于,所述传动件为凸轮,所述操作钮与所述凸轮之间通过多个相互啮合的传动齿轮传动,且所述操作钮的转动轴线、凸轮的转动轴线以及各传动齿轮的转动轴线平行;
    按照传动次序,首个传动齿轮与所述操作钮同轴设置,末个传动齿轮与所述凸轮同轴设置。
  87. 如权利要求73所述压缩介入器械的压握器,其特征在于,沿器械通道的周向,所述档位件位于相邻两施力块之间,且所述档位件的运动路径避让各施力块。
  88. 如权利要求86所述压缩介入器械的压握器,其特征在于,所述压握器还包括用以将所述档位件锁定在对应工作位的锁紧件,所述锁紧件直接或间接干涉以下至少一个运动部件:
    所述档位件;
    所述操作钮;
    所述凸轮;
    所述传动齿轮。
  89. 如权利要求88所述压缩介入器械的压握器,其特征在于,所述壳体的内壁具有与所述锁紧件相互配合的多个卡槽,多个卡槽沿所述运动部件的转动或运动方向依次设置。
  90. 如权利要求89所述压缩介入器械的压握器,其特征在于,所述锁紧件包括:
    锁舌,所述锁舌与所述卡槽相配合;
    连接臂,所述连接臂连接于所述锁舌与所述运动部件之间,且能够形变。
  91. 如权利要求90所述压缩介入器械的压握器,其特征在于,所述连接臂的延伸方向呈弧形,所述连接臂的两端分别与所述运动部件连接,所述锁舌位于所述连接臂的弧顶。
  92. 介入器械的装载方法,其特征在于,包括:
    提供压握器,所述压握器包括:
    壳体,所述壳体带有贯通的器械通道;
    施力块,所述施力块有多个且活动安装在所述壳体内,各施力块绕所述器械通道分布,多个施力块具有相对的聚拢状态和分离状态,并在切换状态过程中相应的收放器械通道;
    齿圈,所述齿圈与所述壳体转动配合,所述齿圈同步驱动多个施力块切换状态;
    将介入器械放置在所述器械通道内;
    旋转所述齿圈,所述齿圈驱动多个施力块同步运动压缩介入器械;
    将压缩后的介入器械转移至用于装载介入器械的管件内。
  93. 如权利要求92所述的介入器械的装载方法,其特征在于,所述管件预先定位,且位置与所述器械通道对正。
  94. 如权利要求93所述的介入器械的装载方法,其特征在于,压缩介入器械时,根据介入器械不同位置的径向尺寸,采用逐级压缩方式。
  95. 如权利要求94所述的介入器械的装载方法,其特征在于,所述介入器械沿自身的轴向包括第一段与第二段,所述第一段的径向尺寸大于第二段的径向尺寸;
    所述逐级压缩方式包括:
    向所述介入器械内穿设芯棒,将所述第一段的径向尺寸压缩至与所述第二段的径向尺寸大致相等;
    再将所述第一段和所述第二段同步压缩至所述芯棒相贴合。
  96. 如权利要求95所述的介入器械的装载方法,其特征在于,所述介入器械内穿设输送系统的第一管件,压缩所述介入器械至与所述第一管件相贴合,并将压缩后的所述介入器械推送至所述输送系统的第二管件内。
PCT/CN2022/083448 2021-07-28 2022-03-28 压缩介入器械的压握器及介入器械的装载方法 Ceased WO2023005245A1 (zh)

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CN116327447B (zh) * 2023-05-24 2023-08-18 杭州启明医疗器械股份有限公司 具有拦截作用的介入系统
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