WO2024139967A1 - 输送器和输送系统 - Google Patents

输送器和输送系统 Download PDF

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Publication number
WO2024139967A1
WO2024139967A1 PCT/CN2023/135060 CN2023135060W WO2024139967A1 WO 2024139967 A1 WO2024139967 A1 WO 2024139967A1 CN 2023135060 W CN2023135060 W CN 2023135060W WO 2024139967 A1 WO2024139967 A1 WO 2024139967A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheath
connector
elastic seal
distal end
state
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/CN2023/135060
Other languages
English (en)
French (fr)
Inventor
王宇
刘建勇
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.)
Lifetech Scientific Shenzhen Co Ltd
Original Assignee
Lifetech Scientific Shenzhen Co Ltd
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 Lifetech Scientific Shenzhen Co Ltd filed Critical Lifetech Scientific Shenzhen Co Ltd
Priority to EP23909897.3A priority Critical patent/EP4643787A4/en
Publication of WO2024139967A1 publication Critical patent/WO2024139967A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0043—Catheters; Hollow probes characterised by structural features
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M39/0613—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof with means for adjusting the seal opening or pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M39/0693—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof including means for seal penetration
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00526—Methods of manufacturing
    • A61B2017/0053—Loading magazines or sutures into applying tools
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
    • A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
    • A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
    • A61B2017/00623—Introducing or retrieving devices therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/062—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof used with a catheter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/0626—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof used with other surgical instruments, e.g. endoscope, trocar
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/0633—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof the seal being a passive seal made of a resilient material with or without an opening
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/0633—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof the seal being a passive seal made of a resilient material with or without an opening
    • A61M2039/064—Slit-valve

Definitions

  • the present invention relates to the technical field of interventional medical equipment, and in particular to a conveyor and a conveying system.
  • the current common treatment method for cardiovascular diseases is to use catheter technology to intervene. Specifically, it refers to the use of catheter interventional treatment methods to place various materials and instruments into the heart, arteries, veins and other parts of the human body to treat cardiovascular diseases.
  • interventional medical devices are placed through catheter intervention, such as atrial septal defect (ASD) occluders, ventricular septal defect (VSD) occluders, patent ductus arteriosus (PDA) occluders, patent foramen ovale (PFO) occluders, etc., to reach the defect site of the heart and block the defect to treat congenital heart disease.
  • ASD atrial septal defect
  • VSD ventricular septal defect
  • PDA patent ductus arteriosus
  • PFO patent foramen ovale
  • the existing delivery system includes a loader, a hemostatic valve, a delivery sheath, a delivery cable, etc.
  • the hemostatic valve is assembled with the loader or the hemostatic valve is assembled with the delivery sheath for use according to actual needs.
  • the operation steps when using the traditional delivery system during surgery are as follows: after the delivery sheath enters the human body, a hemostatic valve will be connected to the tail of the delivery sheath for hemostasis; then another hemostatic valve will be assembled with the loader, and after the assembly is completed, the medical device will be stored in the loader and the exhaust operation will be performed; the hemostatic valve at the tail of the delivery sheath will be detached, the head of the loader will be inserted into the tail of the delivery sheath, the connecting thread will be tightened, the cable will be pushed, the medical device in the loader will be pushed into the delivery sheath and implanted in the human body.
  • the existing delivery system increases the surgical procedure steps and operation time by disassembling and assembling the hemostatic valve and the delivery sheath multiple times during the intervention process, and there is a risk that the loader will loosen and fall off after being assembled with the delivery sheath, causing leakage.
  • the present invention aims to at least provide a delivery device and a delivery system that does not require the removal of a hemostatic valve during surgery.
  • the conveyor comprises:
  • a hemostatic valve comprising a valve seat, an elastic seal and a sheath tube connector, the elastic seal being arranged in the valve seat, the elastic seal having a first state and a second state, the distal end of the sheath tube connector extending into the valve seat and being axially movable in the valve seat, the valve seat, the elastic seal and the sheath tube connector jointly defining a delivery channel, the delivery channel being communicated with the delivery sheath tube;
  • An adjusting nut is rotatably sleeved on the sheath tube joint, and the adjusting nut drives the sheath tube joint to move axially;
  • the sheath tube connector squeezes the elastic seal within the moving stroke to switch it between the first state and the second state.
  • the delivery channel In the first state, the delivery channel is in a conducting state, and in the second state, the delivery channel is in a closed state.
  • the above-mentioned conveyor can achieve the connection or closure of the conveying channel by axially moving the sheath joint in the hemostatic valve during the interventional surgery, without the need to assemble and disassemble the hemostatic valve, the conveying sheath and the loader, thus reducing the steps of the surgical procedure and shortening the surgical time, and avoiding the risk of leakage caused by the loose fit between the conveying sheath and the hemostatic valve due to on-site manual assembly factors.
  • the adjusting nut cannot drive the sheath joint to rotate circumferentially, and the adjusting nut can only drive the sheath joint to move axially, thereby avoiding the sheath joint rotating circumferentially when the adjusting nut adjusts the position of the sheath joint, causing other devices or instruments connected to the sheath joint to fall off, resulting in surgical failure.
  • the proximal end of the adjusting nut is rotatably connected to the sheath tube joint, and the adjusting nut is sleeved on the valve seat. Rotating the adjusting nut causes the adjusting nut to move axially, thereby driving the sheath tube joint to move axially.
  • the elastic seal is provided with a slit running through the proximal and distal ends of the elastic seal; in the first state, the sheath connector is inserted into the slit, and the distal end of the sheath connector extends from the distal end of the slit; in the second state, the proximal end of the sheath connector is located outside the slit, and the slit is closed to seal the delivery channel.
  • the conveyor also includes: an expander, the expander includes a connecting piece and a through tube connected to the connecting piece, the connecting piece is detachably connected to the sheath tube connector, the through tube is sleeved in the sheath tube connector, and the distal end of the through tube extends from the distal end of the sheath tube connector.
  • the conveyor further comprises: an annular fixing member disposed in the valve seat, wherein the annular fixing member is located at a proximal side of the elastic sealing member and presses the elastic sealing member against the valve seat.
  • the elastic sealing member protrudes from the proximal end to the distal end; and/or the proximal opening of the slit is smaller than the distal opening of the slit.
  • the elastic seal has an annular structure, and has a first opening that passes through the proximal end and the distal end of the elastic seal; in the first state, the first opening is connected to the sheath tube connector; in the second state, at least part of the inner wall of the first opening is deformed toward the axis of the elastic seal to close the first opening to seal the delivery channel.
  • the conveyor further comprises: a silicone tube, the proximal end of the silicone tube is connected to the distal end of the sheath tube connector, and the silicone tube is arranged in the first opening.
  • proximal opening of the silicone tube and the distal opening of the sheath tube connector are of the same size and are butted against each other.
  • the conveyor further comprises: an auxiliary gasket, wherein the auxiliary gasket is arranged between the elastic sealing component and the sheath tube joint; wherein the auxiliary gasket is a self-lubricating component.
  • a trumpet-shaped opening structure is provided at the distal end of the sheath tube connector, and an inner wall of the opening structure has a guiding slope, and the guiding slope is used to squeeze the outer peripheral surface of the elastic seal to radially compress the elastic seal.
  • valve seat is provided with a first guide structure extending in the axial direction
  • sheath tube joint is provided with a second guide structure slidingly matched with the first guide structure to limit the sheath tube joint from rotating in the circumferential direction.
  • the conveyor further comprises a handle assembly, and the proximal end of the hemostatic valve is inserted into the handle assembly.
  • a conveying system comprising any of the above-mentioned conveyors and a loader, wherein the conveyor is connected to the loader.
  • the loader comprises a connecting element and a loading sheath connected to the connecting element, the connecting element is detachably connected to the distal end of the sheath connector, and the loading sheath is communicated with the sheath connector.
  • FIG1 schematically shows a schematic structural diagram of a conveyor according to an embodiment of the present invention
  • FIG2 schematically shows an exploded schematic diagram of parts of a conveying system according to Embodiment 1 of the present invention
  • FIG3 schematically shows a cross-sectional view of a partial structure of a conveying system according to Embodiment 1 of the present invention
  • FIG4 schematically shows a partial structural diagram of a conveying system according to an embodiment of the present invention
  • FIG5 schematically shows a cross-sectional view of a partial structure of a conveying system according to a second embodiment of the present invention
  • FIG6 schematically shows an exploded schematic diagram of parts of a conveying system according to Embodiment 2 of the present invention.
  • FIG7 schematically shows a schematic structural diagram of an elastic sealing member and an annular fixing member according to a second embodiment of the present invention
  • FIG8 schematically shows a schematic structural diagram of an elastic sealing member according to a second embodiment of the present invention.
  • FIG9 schematically shows a schematic structural diagram of a valve seat according to a second embodiment of the present invention.
  • FIG10 schematically shows a schematic structural diagram of an elastic sealing member according to an exemplary embodiment of the second embodiment of the present invention.
  • FIG11 schematically shows another perspective structural diagram of an elastic sealing member according to an exemplary embodiment of the second embodiment of the present invention.
  • FIG12 schematically shows a cross-sectional view of an elastic sealing member according to another embodiment of the present invention.
  • FIG. 13 schematically shows an exploded view of parts of a conveying system according to an exemplary embodiment of Embodiment 3 of the present invention
  • FIG14 schematically shows a cross-sectional structural diagram of a conveying system according to an exemplary embodiment of Embodiment 3 of the present invention.
  • FIG. 15 schematically shows a schematic structural diagram of an elastic sealing member according to an exemplary embodiment of Embodiment 3 of the present invention.
  • FIG. 16 schematically shows an exploded view of parts of a conveying system according to an exemplary embodiment of Embodiment 3 of the present invention
  • FIG. 17 schematically shows a schematic structural diagram of an elastic seal and a sheath tube connector according to an exemplary embodiment of Embodiment 3 of the present invention
  • FIG18 schematically shows a cross-sectional structural diagram of a conveying system according to an exemplary embodiment of Embodiment 3 of the present invention.
  • FIG. 19 schematically shows an exploded view of parts of a conveying system according to an exemplary embodiment of Embodiment 3 of the present invention.
  • FIG20 schematically shows a cross-sectional structural diagram of a conveying system according to an exemplary embodiment of Embodiment 3 of the present invention
  • FIG21 schematically shows a schematic structural diagram of a sheath tube connector and a loader according to a fourth embodiment of the present invention
  • FIG22 schematically shows a schematic structural diagram of a sheath tube connector and a loader according to Embodiment 5 of the present invention
  • FIG. 23 schematically shows a schematic structural diagram of a conveying system according to a sixth embodiment of the present invention.
  • FIG. 24 schematically shows a cross-sectional structural diagram of a conveying system according to Embodiment 6 of the present invention.
  • first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as “first”, “second” and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.
  • spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as “inside”, “outside”, “inner side”, “outer side”, “below”, “below”, “above”, “above”, etc.
  • Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as “below other elements or features” or “below other elements or features” will subsequently be oriented as “above other elements or features" or “above other elements or features”. Therefore, the example term “below" can include both upper and lower orientations.
  • the device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.
  • distal and proximal are used as directional terms, which are commonly used terms in the field of interventional medical devices, where “distal” refers to the end away from the operator during surgery, and “proximal” refers to the end close to the operator during surgery.
  • Axial refers to the direction parallel to the line connecting the distal center and the proximal center of the medical device; radial refers to the direction perpendicular to the above axial direction.
  • a conveyor 100 is provided.
  • the delivery device 100 includes a hemostatic valve 10 and a delivery sheath 30.
  • the hemostatic valve 10 includes a valve seat 11, an elastic seal 12 and a sheath connector 13.
  • the elastic seal 12 is arranged in the valve seat 11.
  • the sheath connector 13 is generally tubular. The distal end of the sheath connector 13 extends into the valve seat 11 and can move axially in the valve seat 11.
  • valve seat 11, the elastic seal 12 and the sheath connector 13 are arranged in sequence, and
  • the valve seat 11, the elastic seal 12 and the sheath connector 13 jointly define an axially extending delivery channel, that is, the delivery channel includes at least three segments connected in sequence, and the delivery channel of each segment is respectively located on the valve seat 11, the elastic seal 12 and the sheath connector 13.
  • the two ends of the delivery channel are respectively connected to the delivery sheath 30 and the proximal end of the sheath connector 13.
  • the sheath connector 13 squeezes the elastic seal 12 within the moving stroke to convert it between the first state and the second state.
  • the delivery channel In the first state, the delivery channel is in a conducting state to connect the delivery channel so that medical devices or drugs can be delivered to the treatment site through the delivery channel and the delivery sheath 30; in the second state, the delivery channel is in a closed state to prevent blood leakage.
  • connection or closure of the delivery channel can be achieved by axially moving the sheath connector 13 in the hemostatic valve 10, without the need to assemble and disassemble the hemostatic valve 10, the delivery sheath 30, and the medical device or loader, which reduces the surgical operation steps and shortens the operation time, and avoids the risk of leakage caused by the loose fit between the delivery sheath 30 and the hemostatic valve 10 due to on-site manual assembly factors.
  • the conveyor 100 further includes: an adjusting nut 20.
  • the valve seat 11 includes a first channel 111 and a receiving chamber 112 which are connected to each other.
  • the first channel 111 is located at one side of the distal end relative to the receiving chamber 112.
  • the diameter of the receiving chamber 112 is larger than the diameter of the first channel 111.
  • the proximal end of the first channel 111 forms a conveying opening 1111 on the wall surface of the distal end of the receiving chamber 112 (please refer to FIG. 8 ).
  • the distal end of the first channel 111 is connected to the conveying sheath 30.
  • the elastic seal 12 is disposed in the receiving chamber 112 and abuts against the wall surface of the distal end of the receiving chamber 112.
  • the elastic seal 12 is blocked at the position of the conveying opening 1111 to open or close the conveying opening 1111.
  • the sheath connector 13 is arranged on the side of the elastic seal 12 away from the first channel 111.
  • the distal end of the sheath connector 13 is axially movable in the accommodating cavity 112 and abuts against the elastic seal 12.
  • the proximal end of the sheath connector 13 extends out of the accommodating cavity 112 and can be connected to a medical device or a loader.
  • the first channel 111 constitutes the distal segment of the delivery channel
  • the elastic seal 12 constitutes the middle segment of the delivery channel
  • the inner cavity of the sheath connector 13 constitutes the proximal segment of the delivery channel.
  • the elastic seal 12 is a columnar structure, and the outer peripheral surface contour of the elastic seal 12 matches the inner peripheral surface contour of the accommodating cavity 112, so that the outer peripheral surface contour of the elastic seal 12 can match the inner peripheral surface contour of the accommodating cavity 112.
  • the inner circumference profile of the cavity 112 fits closely.
  • the elastic seal 12 is provided with a cross slit 121 that runs through the proximal end and the distal end of the elastic seal 12.
  • the cross slit 121 can be a cross slit formed by the intersection of two straight slits, or a cross slit formed by a plurality of straight slits, or a straight slit.
  • the cross slit 121 stretches freely and closes, thereby blocking the delivery opening 1111.
  • the distal end of the sheath connector 13 is configured to be a conical structure that is convenient for inserting and squeezing the cross slit 121.
  • the elastic seal 12 is in the second state, and the cross slit 121 is closed to close the delivery opening 1111, thereby closing the delivery channel.
  • the distal end of the sheath connector 13 When the sheath connector 13 moves toward one side of the distal end, the distal end of the sheath connector 13 is inserted into the cross slit 121 and squeezes the cross slit 121, so that the elastic seal 12 at the cross slit is deformed toward the side away from the axial direction, until the distal end of the sheath connector 13 passes through the distal end of the cross slit, the inner cavity of the sheath connector 13 is directly connected to the first channel 111, so that the entire delivery channel is in a connected state.
  • the elastic seal 12 is a silicone member made of silicone material. Under the action of external force, the silicone member has a high elastic deformation ability and has a good elastic recovery performance, thereby ensuring that the elastic seal 12 can be switched between the first state and the second state.
  • the elastic seal 12 can also be made of latex or polyurethane and other materials, which are chemically stable and elastic.
  • the adjusting nut 20 is rotatably sleeved on the outside of the sheath connector 13, and the adjusting nut 20 drives the sheath connector 13 to move axially.
  • the proximal end of the adjusting nut 20 is rotatably connected to the sheath connector 13, and the adjusting nut 20 is sleeved on the valve seat 11. The adjusting nut 20 is rotated to make the adjusting nut 20 move axially, driving the sheath connector 13 to move axially.
  • a first external thread 113 is provided on the side of the outer peripheral surface of the valve seat 11 close to the proximal end, and a first internal thread 21 cooperating with the first external thread 113 is provided on the inner wall of the adjusting nut 20 along the circumferential direction, so that the adjusting nut 20 can be movably connected to the valve seat 11 by screwing in.
  • a first annular protrusion 22 is circumferentially provided on one side of the inner wall surface of the adjusting nut 20 close to the proximal end, and a first annular groove 1322 is circumferentially provided on the outer circumferential surface of the sheath connector 13. The first annular protrusion 22 is rotatably provided in the first annular groove 1322.
  • the sheath connector 13 When the adjusting nut 20 is rotated to move relative to the valve seat 11 in the axial direction, the sheath connector 13 is driven to move in the axial direction through the cooperation between the first annular protrusion 22 and the side wall of the first annular groove 1322. That is, by rotating the adjusting nut forward or backward, the delivery channel can be closed or connected, but the sheath connector 13 will not be driven to rotate circumferentially.
  • the adjusting nut 20 By arranging the adjusting nut 20 to be rotatably sleeved on the outside of the sheath connector 13, the adjusting nut 20 does not The adjusting nut 20 can drive the sheath connector 13 to rotate circumferentially, and the adjusting nut 20 can only drive the sheath connector 13 to move axially, so as to avoid the sheath connector 13 rotating circumferentially when the adjusting nut 20 adjusts the position of the sheath connector 13, causing other devices or instruments connected to the sheath connector 13 to fall off, resulting in surgical failure.
  • the sheath tube connector 13 includes a tube body 131 and a sliding fitting portion 132 provided on the outer peripheral surface of the tube body 131.
  • the outer peripheral surface of the sliding fitting portion 132 is slidably fitted with the circumferential inner wall of the accommodating cavity 112.
  • the sliding fitting portion 132 is slidably fitted with the accommodating cavity 112, so that the sheath tube connector 13 can move in the axial direction.
  • a convex ring 1311 is also provided on the outer peripheral surface of the tube body 131. In the axial direction, the convex ring 1311 is spaced apart from the sliding fitting portion 132 and is located on one side of the proximal end of the sliding fitting portion 132.
  • a first annular groove 1322 is defined between the convex ring 1311 and the sliding fitting portion 132.
  • the adjusting nut is rotatably sleeved on the outside of the valve seat and the sheath tube connector
  • the inner wall of the adjusting nut is provided with a first internal thread in the circumferential direction
  • the inner wall surface of the adjusting nut is provided with a first annular protrusion arranged in the circumferential direction on the side close to the distal end
  • the outer circumferential surface of the valve seat is provided with a first annular groove in the circumferential direction
  • the first annular protrusion is rotatably arranged in the first annular groove
  • the outer circumferential surface of the sheath tube connector is provided with a first external thread that cooperates with the first internal thread.
  • the adjusting nut When the adjusting nut is rotated, the adjusting nut is stationary relative to the valve seat in the axial direction through the cooperation between the first annular protrusion and the side wall of the first annular groove, and the sheath tube connector is driven to move in the axial direction relative to the adjusting nut and the valve seat through the cooperation between the first internal thread and the first external thread, so as to realize the closure or connection of the delivery channel.
  • This embodiment requires further provision of a device for limiting circumferential movement, such as the first guide structure 1121 and the second guide structure 1321 in FIG. 6, to prevent the sheath tube connector from circumferential movement.
  • the valve seat 11 can also be provided with a first guide structure 1121 extending axially, and the sheath tube connector 13 is provided with a second guide structure 1321 that slides with the first guide structure 1121.
  • the sheath tube connector 13 Under the guiding action of the first guide structure 1121 and the second guide structure 1321, the sheath tube connector 13 can move in the axial direction relative to the valve seat 11, and limit the circumferential rotation of the sheath tube connector 13 relative to the valve seat 11, thereby further enabling the delivery sheath tube 30 and the loader 40 to maintain the stability of the circumferential position, thereby making the operation of the delivery system more convenient.
  • the second guide structure 1321 is disposed on the outer circumferential surface of the sheath tube connector 13, specifically, the second guide structure 1321 is disposed on the outer circumferential surface of the sheath tube connector 13,
  • the guide structure 1321 is a guide groove arranged on the outer peripheral surface of the sliding fitting part 132, and the length direction of the guide groove extends along the axial direction, and a plurality of guide grooves are arranged on the outer peripheral surface of the sliding fitting part 132 in sequence and at intervals along the circumferential direction, each guide groove corresponds to a guide protrusion, and the guide protrusion can be slidably arranged in the guide groove along the axial direction to limit the rotation of the sheath tube connector 13 relative to the valve seat 11 along the circumferential direction through the cooperation between the guide protrusion and the guide groove.
  • the first guide structure may be a guide groove
  • the second guide structure may be a guide protrusion
  • the delivery device 100 further includes: a dilator 50.
  • the dilator 50 includes a connecting member 51 and a through tube 52 connected to each other, specifically, the connecting member 51 is sleeved outside the through tube 52 and can rotate relative to the through tube 52 in a circumferential direction, the through tube 52 is sleeved in the sheath tube connector 13, and the distal end of the through tube 52 extends from the distal end of the sheath tube connector 13.
  • the outer circumferential surface of the through-tube 52 is provided with a second annular protrusion along the circumferential direction
  • the circumferential inner wall of the connecting member 51 is provided with a boss structure that cooperates with the second annular protrusion (not shown in the figure) on one side of the proximal end of the second annular protrusion, so that the connecting member 51 and the through-tube 52 can rotate relative to each other in the circumferential direction
  • the circumferential inner wall of the connecting member 51 is provided with a third internal thread 510 that cooperates with the second external thread 134 on one side near the distal end.
  • the second external thread 134 cooperates with the third internal thread 510 to enable the connecting member 51 to move axially relative to the sheath connector 13, and to push the through-tube 52 to move distally relative to the sheath connector 13, and to enable the distal end of the through-tube 52 to penetrate and expand the cross-slit 121, while the connecting member 51 does not drive the through-tube 52 to rotate circumferentially.
  • the distal end of the through-tube 52 is set to a tapered structure to facilitate the insertion of the distal end of the through-tube 52 into the cross-slit 121.
  • the dilator 50 needs to be removed from the sheath connector 13 , and then the sheath connector 13 is connected to other instruments.
  • this embodiment further provides a conveying system 200 , which includes a conveyor 100 and a loader 40 , wherein the conveyor 100 is connected to the loader 40 .
  • the loader 40 includes a connecting element 41 and a loading sheath 42 connected to the connecting element 41.
  • the outer peripheral surface of the sheath connector 13 near the proximal end is provided with a second external thread 134.
  • the connecting element 41 is sleeved on the outside of the sheath connector 13, and the inner wall surface of the connecting element 41 is provided with a second internal thread (not shown in the figure) that cooperates with the second external thread 134.
  • the connecting element 41 and the sheath connector 13 are detachably connected through the threaded cooperation between the second external thread 134 and the second internal thread, and the loading sheath 42 is connected to the sheath connector 13, so that the medical device stored in the loader 40 can be moved to the delivery sheath 30 through the sheath connector 13 and the first channel 111 under the push of the delivery cable.
  • the structures of the delivery sheath 30, loader 40 and sheath connector 13 in this embodiment are basically the same as the structures of the delivery sheath 30, loader 40 and sheath connector 13 in embodiment one, and the difference lies in the structure of the valve seat 11 and the elastic seal 12. The differences between embodiment two and embodiment one will be described below, and the similarities or similarities between embodiment two and embodiment one will not be repeated here.
  • the conveyor 100 further includes an annular fixing member 14, which is disposed in the accommodating chamber 112 and fixedly connected to the valve seat 11.
  • the annular fixing member 14 is located on the proximal side of the elastic seal 12 and presses the elastic seal 12 against the distal wall of the accommodating chamber 112.
  • the main function of the annular fixing member 14 is to fix and press the elastic seal 12 against the distal wall of the accommodating chamber 112, thereby improving the wall adhesion effect of the elastic seal 12, so as to better seal the conveying opening 1111 and prevent blood leakage.
  • the annular fixing member 14 can be a material with a self-lubricating effect, such as polyamide (PA), polyoxymethylene (POM), etc., which can reduce the force of the sheath connector 13 entering the elastic seal 12, and facilitate the sheath connector 13 to enter the elastic seal 12.
  • PA polyamide
  • POM polyoxymethylene
  • a plurality of clamping columns 1123 are provided on the distal wall of the accommodating chamber 112, the clamping columns 1123 are columnar, and the axis of the clamping columns 1123 extends axially.
  • the plurality of clamping columns are arranged in sequence and spaced around the delivery opening 1111.
  • the elastic seal 12 is provided with a plurality of through holes 125, and the through holes 125 pass through the proximal end and the distal end of the elastic seal 12, and each through hole 125 corresponds to a clamping column 1123, so that the clamping column 1123 can pass through the through hole 125 and extend from the proximal end of the through hole 125.
  • the annular fixing member 14 is provided with a plurality of clamping holes 142, and each clamping hole 142 corresponds to a clamping column 1123, and the clamping column 1123 is inserted into the clamping hole 142 to realize the annular fixing.
  • the fixing member 14 is fixedly connected to the valve seat 11.
  • the clamping column 1123 and the clamping hole 142 are interference-fitted, so that the annular fixing member 14 is more firmly connected to the valve seat 11, and the elastic sealing member 12 is prevented from being loosened when the sheath tube connector 13 squeezes the elastic sealing member 12.
  • each clamping column 1123 corresponds to a guide protrusion, so that under the guiding action of the guide protrusion and the guide groove, the clamping column 1123 can be accurately aligned with the through hole 125, and during the installation process, the clamping column 1123 can smoothly pass through the through hole 125.
  • the clamping column 1123 is inserted into the through hole 125, which can also prevent the elastic seal 12 from rotating relative to the valve seat 11 in the circumferential direction, and prevent the sheath tube connector 13 from squeezing the elastic seal 12, causing the sealing of the elastic seal 12 to be weakened.
  • a first annular convex rib 1122 is provided on the distal wall of the accommodating cavity 112, and a plurality of clamping columns 1123 are provided on the first annular convex rib 1122, and the first annular convex rib 1122 is provided around the delivery opening 1111.
  • a first annular matching groove 122 is provided on the distal surface of the elastic seal 12, and the first annular matching groove 122 is provided around the cross slit 121, and the contour of the first annular convex rib 1122 matches the contour of the first annular matching groove 122.
  • the first annular convex rib 1122 extends into the first annular matching groove 122. It should be noted that, by providing the first annular rib 1122 and the first annular matching groove 122, a plurality of continuous sealing surfaces are formed between the distal end surface of the elastic seal 12 and the distal wall surface of the accommodating cavity 112, and the sealing surfaces are not coplanar, so that when the sheath tube connector 13 is passed through the cross slit 121 and squeezes the elastic seal 12 to deform the elastic seal 12, at least one sealing surface remains in a sealed state to avoid blood leakage.
  • a plurality of non-coplanar sealing surfaces can improve the sealing performance between the elastic seal 12 and the distal end surface of the accommodating cavity 112. It should also be noted that when the elastic seal 12 is pressed against the distal wall of the accommodating cavity 112, the first annular rib 1122 is arranged outside the cross slit 121.
  • the first annular rib 1122 is made of a rigid material.
  • the inner wall of the first annular rib 1122 can provide a supporting force in the direction of the axis, thereby reducing the degree of overall deformation of the elastic seal 12 and allowing at least part of the sealing surface to remain in a sealed state, thereby preventing blood leakage due to poor sealing caused by the deformation of the elastic seal 12.
  • the distal end surface of the annular fixing member 14 is provided with a second annular rib 141
  • the proximal end surface of the elastic sealing member 12 is provided with a second annular matching groove 123.
  • the matching groove 123 is arranged outside the cross cut 121, and the contour of the second annular rib 141 matches the contour of the second annular matching groove 123.
  • the second annular rib 141 when the annular fixing member 14 is pressed against the proximal end face of the elastic seal 12, the second annular rib 141 is arranged outside the cross slit 121, and the second annular rib 141 has a certain support.
  • the inner wall of the second annular rib 141 can further provide a supporting force in the direction of the axis, thereby reducing the degree of overall deformation of the elastic seal 12, so that at least part of the sealing surface can maintain a sealed state, thereby preventing the occurrence of blood leakage due to poor sealing caused by the deformation of the elastic seal 12.
  • the proximal and distal ends of the elastic seal 12 are respectively recessed toward the center of the elastic seal 12 , and referring to FIG. 7 and FIG. 8 , the size of the cross slit 121 from the proximal end to the distal end remains unchanged.
  • the cross slit 121 of the elastic seal 12 protrudes from the proximal end to the distal end, thereby facilitating other instruments, such as a loader, to penetrate from the proximal end to the distal end, and at the same time, the inserted instrument is easily fixed at the cross slit 121 of the elastic seal 12, and is not easily withdrawn from the distal end to the proximal end, which can improve the stability and safety of the operation.
  • the proximal opening 121a of the cross slit 121 is smaller than the distal opening 121b, thereby improving the sealing performance.
  • the structures of the delivery sheath 30 and the loader 40 in this embodiment are basically the same as those of the delivery sheath 30 and the loader 40 in the first embodiment, and the difference lies in the structure of the elastic seal 12 and the sheath connector 13 in the hemostatic valve 10.
  • the differences between the third embodiment and the first or second embodiment will be described below, and the similarities or similarities between the third embodiment and the first or second embodiment will not be repeated here.
  • the elastic seal 12 is an annular structure, and the elastic seal 12 has a first opening 124 that runs through the proximal and distal ends of the elastic seal 12.
  • the elastic seal 12 is located between the first channel 111 and the sheath connector 13, and the first channel 111, the first opening 124 and the inner cavity of the sheath connector 13 are sequentially connected to form a delivery channel, that is, the first channel 111 constitutes a distal segment of the delivery channel, the first opening 124 constitutes a middle segment of the delivery channel, and the inner cavity of the sheath connector 13 constitutes a proximal segment of the delivery channel.
  • the distal end of the sheath connector 13 is configured to abut against the proximal end surface of the elastic seal 12 so as to squeeze the elastic seal 12 when the sheath connector 13 moves axially, thereby deforming the elastic seal 12.
  • the elastic seal 12 when the elastic seal 12 is in the first state, the first channel 111 is connected to the sheath connector 13 through the first opening 124.
  • the elastic seal 12 is in the second state, at least part of the inner wall of the first opening 124 is deformed toward the axis of the elastic seal 12, so that the first opening 124 is closed to close the delivery channel.
  • the hemostatic valve 10 in order to facilitate the sheath connector 13 to squeeze the elastic seal 12 and make the deformation process of the elastic seal 12 smoother, the hemostatic valve 10 further includes an auxiliary gasket 16, which is arranged between the elastic seal 12 and the sheath connector 13, and the auxiliary gasket 16 is connected to the distal end of the sheath connector 13 and abuts against the proximal end of the elastic seal gasket.
  • the sliding fitting portion 132 includes a first baffle portion 1323, a second baffle portion 1324 and at least one supporting rib 1325, the first baffle portion 1323 and the second baffle portion 1324 are arranged on the outer circumferential surface of the tube body portion 131 along the circumferential direction, and the first baffle portion 1323 and the second baffle portion 1324 are arranged at intervals along the axial direction, the first baffle portion 1323 is located on the distal side relative to the second baffle portion 1324, and the supporting rib 1325 extends along the axial direction and is connected to the first baffle portion 1323 and the second baffle portion 1324, respectively.
  • the auxiliary gasket 16 is sleeved outside the tube body 131 and is located between the elastic seal 12 and the first baffle portion 1323.
  • the auxiliary gasket 16 is made of a material with a self-lubricating effect, such as polyamide (PA), polyoxymethylene (POM) and other materials, so as to reduce the friction between the elastic seal 12 and the sheath tube connector 13 and the inner wall of the accommodating cavity 112 during the deformation process, thereby achieving the purpose of making the deformation process of the elastic seal 12 smoother.
  • a first annular groove 1322 is defined between the convex ring 1311 and the second baffle portion 1324.
  • the proximal and distal end surfaces of the elastic seal 12 are both set as tapered surfaces 126, the axis of the tapered surface 126 coincides with the axis of the first opening 124, the distal wall surface of the accommodating cavity 112 and the distal end surface of the auxiliary gasket 16 are both in contact with the tapered surface 126, and the guiding effect of the tapered surface 126 is more conducive to the axial alignment of the sheath tube connector 13 and the auxiliary gasket 16 with the elastic seal 12.
  • the proximal and distal end surfaces of the elastic seal 12 can also be set as planes.
  • the distal end surface of the first baffle portion 1323 abuts against the proximal end surface of the elastic seal 12, the distal end of the tube body portion 131 extends from the distal end surface of the first baffle portion 1323 and is inserted into the first opening 124, and the outer circumferential surface of the distal end of the tube body portion 131 abuts against the inner wall surface of the first opening 124.
  • a limiting convex ring 1124 is provided on the distal wall of the accommodating cavity 112 around the edge of the first opening 124, and a gap is provided between the limiting convex ring 1124 and the inner wall of the first opening 124 along the circumferential direction.
  • the distal end of the silicone tube 15 is inserted into the gap between the limiting convex ring 1124 and the inner wall of the first opening 124, and the proximal end of the silicone tube 15 is fixedly connected to the distal end of the tube body 131.
  • the adjusting nut 20 drives the sheath tube connector 13 to move axially by rotating the thread, and when moving toward the distal end, the elastic seal 12 is squeezed, and the elastic seal 12 then squeezes the silicone tube 15, and the elastic seal 12 and the silicone tube 15 move toward the axis and deform at the same time to achieve the closure of the pipeline.
  • the distal end of the sheath connector 13 is provided with a trumpet-shaped opening structure 133
  • the inner wall of the opening structure 133 has a guide bevel 1331
  • the guide bevel 1331 is used to squeeze the outer peripheral surface of the elastic seal 12 to radially compress the elastic seal 12
  • the elastic seal 12 is squeezed into the trumpet-shaped opening structure 133 to achieve radial compression, thereby closing the first opening 124.
  • the elastic seal 12 includes a tubular gasket body 127 and a plurality of support portions 128 arranged around the outer circumference of the gasket body 127.
  • the plurality of support portions 128 are arranged in sequence and at intervals around the circumference of the gasket body 127.
  • One end of the support portion 128 away from the gasket body 127 is in contact with the inner wall of the accommodating cavity 112.
  • the sliding fitting portion 132 includes a plurality of support ribs 1325.
  • the plurality of support ribs 1325 are arranged in sequence and at intervals along the circumferential direction on the outer circumference of the tube body 131.
  • the length direction of the support ribs 1325 extends along the axial direction.
  • each support rib 1325 is provided with a first baffle portion 1323.
  • the proximal end of each support rib 1325 is provided with a first baffle portion 1323.
  • a second baffle portion 1324 is provided.
  • the first baffle portion 1323 is arranged at a preset angle with the axial direction of the tube body portion 131, and the distal end of the first baffle portion 1323 is away from the axis of the tube body portion 131 relative to the proximal end of the first baffle portion 1323, so that the plurality of first baffle portions 1323 form a trumpet-shaped opening structure 133, and the side surface of the first baffle portion 1323 facing the axis of the tube body portion 131 is a guiding inclined surface 1331 with a guiding function, and each first baffle portion 1323 corresponds to a support portion 128.
  • the guiding inclined surface 1331 squeezes the end surface of the support portion 128 away from the gasket body 127, so as to radially compress the elastic seal 12, so that the elastic seal 12 is squeezed into the trumpet opening structure 133, thereby closing the first opening 124 to achieve a closed delivery channel.
  • the number of the support portions 128 is the same as the number of the support ribs 1325 , and all the support portions 128 are evenly arranged around the circumference of the gasket body 127 . All the support ribs 1325 are evenly arranged around the circumference of the tube body 131 .
  • a plurality of limiting ribs 1125 are further provided in the accommodating cavity 112.
  • the limiting ribs 1125 are protruded from the distal wall of the accommodating cavity 112 along the axial direction toward the proximal side, and the plurality of limiting ribs 1125 are arranged in sequence and spaced around the circumference of the delivery opening 1111.
  • the plurality of limiting ribs 1125 and the circumferential inner wall of the accommodating cavity 112 jointly enclose a guide cavity 1126 for accommodating the elastic seal 12.
  • the inner wall contour of the guide cavity 1126 matches the contour of the outer peripheral surface of the elastic seal 12 to limit the position of the elastic seal 12.
  • the structures of the delivery sheath 30 and the hemostatic valve 10 in this embodiment are basically the same as those in embodiment one or embodiment two or embodiment three, and the difference lies in the structure of the sheath connector 13 and the loader 40 in the hemostatic valve 10.
  • the differences between embodiment four and embodiment one or embodiment two or embodiment three will be described below, and the same or similarities between embodiment two and embodiment one or embodiment two or embodiment three will not be repeated here.
  • the loader 40 includes a connecting element 41 and a loading sheath 42 fixedly connected to the connecting element 41.
  • a buckle 135 protruding from the inner wall of the sheath connector 13 is provided on the side close to the proximal end, and a slot 412 that engages with the buckle 135 is provided on the outer peripheral surface of the connecting element 41.
  • the connecting element 41 is inserted into the sheath connector 13 and a snap connection is achieved through the cooperation between the buckle 135 and the slot 412, so as to quickly complete the installation or disassembly of the conveying system.
  • At least one opening slot 136 is provided at the proximal end of the sheath tube connector 13.
  • the opening is located at the proximal end of the sheath connector 13.
  • the proximal end of the sheath connector 13 is more easily expanded and deformed by providing the opening groove 136, so that the connecting element 41 can be smoothly inserted into the sheath connector 13 to achieve a snap-on connection.
  • the proximal end of the sheath connector 13 is provided with a plurality of opening grooves 136, and the plurality of opening grooves 136 are evenly arranged around the axis of the sheath connector 13.
  • the loader 40 includes a connecting element 41 and a loading sheath 42 fixedly connected to the connecting element 41.
  • a buckle 135 protruding from the inner wall of the sheath connector 13 is provided on the side close to the proximal end, and a slot 412 that engages with the buckle 135 is provided on the outer peripheral surface of the connecting element 41.
  • the connecting element 41 is inserted into the sheath connector 13 and is snap-connected by the cooperation between the buckle 135 and the slot 412, so as to quickly complete the installation or disassembly of the conveying system.
  • the length direction of the slot 412 extends along the circumferential direction of the connecting element 41, and, along the length direction, the slot 412 includes a first end and a second end, and an inlet 4121 is provided on the side wall on the distal side of the first end.
  • the buckle 135 can enter the slot 412 through the inlet 4121.
  • the buckle 135 is provided with a buckle groove 1351, and a protrusion 4122 is also provided on the bottom wall of the slot 412 near the second end.
  • the loader 40 is rotated circumferentially to make the buckle 135 first abut against the protrusion 4122, and then the rotation is continued to make the buckle groove 1351 engage with the protrusion 4122.
  • one end of the buckle 135 abuts against the side wall 4123 of the second end of the slot 412, thereby realizing the engagement of the sheath connector 13 with the connecting element 41.
  • the loader 40 moves axially as a whole, the loader 40 is prevented from being loosened from the sheath tube connector 13 by the cooperation between the buckle 135 and the distal or proximal side wall of the slot 412 .
  • the delivery sheath 30 is directly connected to the hemostatic valve 10.
  • the delivery sheath 30 in this embodiment further includes a handle assembly 101, wherein the proximal end of the hemostatic valve 10 is inserted into the handle assembly 101, and the proximal end of the delivery sheath 30 passes through the handle assembly 101 and enters the hemostatic valve 10.
  • the handle assembly 101 can be provided with a bending adjustment assembly 102, which is a structure well known to those skilled in the art, for example, the slider is connected to the proximal end of the pull wire, the distal end of the pull wire is connected to the distal end of the delivery sheath 30, and the axial movement of the slider pulls the pull wire to move, thereby driving the distal end of the delivery sheath 30 to bend or not, and the specific structure is not repeated here.
  • Other structures can also be provided in the handle assembly 101.

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Abstract

一种输送器（100）和输送系统（200），输送器（100）包括：输送鞘管（30）；止血阀（10），止血阀（10）包括阀座（11）、弹性密封件（12）和鞘管接头（13），弹性密封件（12）设置于阀座（11）内，弹性密封件（12）具有第一状态和第二状态，鞘管接头（13）的远端伸入阀座（11）内并可在阀座（11）内轴向移动，阀座（11）、弹性密封件（12）和鞘管接头（13）共同限定出输送通道，输送通道与输送鞘管（30）连通；调节螺母（20），可转动地套设于鞘管接头（13）外，调节螺母（20）带动鞘管接头（13）轴向移动；鞘管接头（13）在移动行程内挤压弹性密封件（12）使其在第一状态和第二状态之间转换，在第一状态下，输送通道处于导通状态，在第二状态下，输送通道处于封闭状态。输送器（100）在手术过程中无需拆卸止血阀（10）。

Description

输送器和输送系统 技术领域
本发明涉及介入医疗器械设备技术领域，尤其涉及一种输送器和输送系统。
背景技术
通过导管技术利用介入的方法进行治疗心血管疾病是目前常用的治疗方法。具体是指将各种材料、器械等通过导管介入的治疗方法放置到人体的心脏、动脉血管、静脉血管等部位治疗心血管疾病。
例如通过导管介入方法放置介入医疗器械，如：房间隔缺损(简称：ASD)封堵器、室间隔缺损(简称：VSD)封堵器、动脉导管未闭(简称：PDA)封堵器、卵圆孔未闭(简称：PFO)封堵器等，到达心脏的缺损部位，封堵缺损以治疗先天性心脏病。
现有输送系统包括装载器、止血阀、输送鞘管、输送钢缆等，在通过输送系统将上述介入医疗器械输送到人体的治疗位置中时，根据实际需求将止血阀与装载器或止血阀与输送鞘进行组装使用。手术中使用传统输送系统时的操作步骤如下：输送鞘进入人体后，会在输送鞘的尾部连接一个止血阀用于止血；之后将另一个止血阀与装载器组装，完成组装后将医疗器械收纳至装载器内，进行排气作业；脱开输送鞘尾部的止血阀，将装载器头部插入输送鞘尾部，旋紧连接螺纹，推动钢缆，将装载器内的医疗器械推入输送鞘并在人体中完成植入。现有输送系统在介入过程中对止血阀以及输送鞘的多次拆装增加了术式操作步骤和手术时间，且装载器有与输送鞘组装后有松开脱落，造成泄漏的风险。
发明内容
鉴于上述问题，本发明旨在至少提供一种手术过程中无需拆卸止血阀的输送器和输送系统。
该目的是通过以下技术方案实现的：
根据本发明的第一方面技术方案，提出了一种输送器，
所述输送器包括：
输送鞘管；
止血阀，所述止血阀包括阀座、弹性密封件和鞘管接头，所述弹性密封件设置于所述阀座内，所述弹性密封件具有第一状态和第二状态，所述鞘管接头的远端伸入所述阀座内并可在所述阀座内轴向移动，所述阀座、所述弹性密封件和所述鞘管接头共同限定出输送通道，所述输送通道与所述输送鞘管连通；
调节螺母，可转动地套设于所述鞘管接头外，所述调节螺母带动所述鞘管接头轴向移动；
所述鞘管接头在移动行程内挤压所述弹性密封件使其在所述第一状态和所述第二状态之间转换，在所述第一状态下，所述输送通道处于导通状态，在所述第二状态下，所述输送通道处于封闭状态。
上述输送器，在介入手术过程中，通过轴向移动止血阀中鞘管接头，即可实现输送通道的连通或封闭，无需对止血阀以及输送鞘管以及装载器进行组合拆装，减少了术式操作步骤并缩短手术时间，并且避免了由于现场人为组装因素使输送鞘管与止血阀、配合不紧密而产生泄露的风险。同时，通过设置调节螺母可转动地套设于鞘管接头外，调节螺母不能带动鞘管接头周向旋转运动，调节螺母只能带动鞘管接头轴向移动，避免调节螺母在调节鞘管接头的位置时，鞘管接头周向旋转导致连接在鞘管接头上的其他装置或器械的脱落，导致手术失败。
进一步地，所述调节螺母的近端与所述鞘管接头可转动连接，所述调节螺母套设在所述阀座上，旋动所述调节螺母使所述调节螺母轴向运动，带动所述鞘管接头轴向移动。
进一步地，所述弹性密封件设有贯穿所述弹性密封件的近端和远端的切缝；在所述第一状态下，所述鞘管接头穿设于所述切缝内，所述鞘管接头的远端自所述切缝的远端伸出；在所述第二状态下，所述鞘管接头的近端位于所述切缝外，所述切缝闭合以封闭所述输送通道。
进一步地，所述输送器还包括：扩张器，所述扩张器包括连接件以及与所述连接件相连的贯穿管，所述连接件可拆卸地与所述鞘管接头相连，所述贯穿管套设于所述鞘管接头内，且所述贯穿管的远端自所述鞘管接头的远端伸出。
进一步地，所述输送器还包括：环状固定件，设于所述阀座内，所述环状固定件位于所述弹性密封件的近端一侧并将所述弹性密封件压抵于所述阀座内。
进一步地，所述弹性密封件从近端向远端凸出；和/或，所述切缝的近端开口小于所述切缝的远端开口。
进一步地，所述弹性密封件呈环状结构，所述弹性密封件具有贯穿所述弹性密封件的近端和远端的第一开口；在所述第一状态下，所述第一开口与所述鞘管接头连通；在所述第二状态下，至少部分所述第一开口的内壁朝向所述弹性密封件的轴心形变使所述第一开口闭合以封闭所述输送通道。
进一步地，所述输送器还包括：硅胶管，所述硅胶管的近端与所述鞘管接头的远端相连，所述硅胶管设置于所述第一开口内。
进一步地，所述硅胶管的近端开口与所述鞘管接头的远端开口大小相同并相互对接。
进一步地，所述输送器还包括：辅助垫圈，所述辅助垫圈设于所述弹性密封件与所述鞘管接头之间；其中，所述辅助垫圈为自润滑件。
进一步地，所述鞘管接头的远端设有喇叭状开口结构，所述开口结构的内壁具有导向斜面，所述导向斜面用于挤压所述弹性密封件的外周面以径向压缩所述弹性密封件。
进一步地，所述阀座设有沿轴向延伸的第一导向结构，所述鞘管接头设有与所述第一导向结构滑动配合的第二导向结构，以限制所述鞘管接头沿周向转动。
进一步地，所述输送器还包括手柄组件，所述止血阀的近端插入所述手柄组件内。
根据本发明的第二方面技术方案，提出了一种输送系统，包括上述任一所述的输送器和装载器，所述输送器与所述装载器相连。
进一步地，所述装载器包括连接元件和与所述连接元件连接的装载鞘管，所述连接元件与所述鞘管接头的远端可拆卸地相连，且所述装载鞘管与所述鞘管接头连通。
附图说明
通过阅读下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本发明的限制。而且在整个附图中，用相同的附图标记表示相同的部件。在附图中：
图1示意性地示出了根据本发明实施方式的输送器的结构示意图；
图2示意性地示出了根据本发明实施方式一的输送系统的零件爆炸示意图；
图3示意性地示出了根据本发明实施方式一的输送系统的部分结构的剖面结构示意图；
图4示意性地示出了根据本发明实施方式的输送系统的部分结构示意图；
图5示意性地示出了根据本发明实施方式二的输送系统的部分结构的剖面结构示意图；
图6示意性地示出了根据本发明实施方式二的输送系统的零件爆炸示意图；
图7示意性地示出了根据本发明实施方式二的弹性密封件和环状固定件的结构示意图；
图8示意性地示出了根据本发明实施方式二的弹性密封件的结构示意图；
图9示意性地示出了根据本发明实施方式二的阀座的结构示意图；
图10示意性地示出了根据本发明实施方式二的一个示例性实施方式的弹性密封件的结构示意图；
图11示意性地示出了根据本发明实施方式二的一个示例性实施方式的弹性密封件的另一角度结构示意图；
图12示意性地示出了根据本发明另一实施例的弹性密封件的剖面结构示意图；
图13示意性地示出了根据本发明实施方式三中的一个示例性实施方式的输送系统的零件爆炸示意图；
图14示意性地示出了根据本发明实施方式三中的一个示例性实施方式的输送系统的剖面结构示意图；
图15示意性地示出了根据本发明实施方式三中的一个示例性实施方式的弹性密封件的结构示意图；
图16示意性地示出了根据本发明实施方式三中的一个示例性实施方式的输送系统的零件爆炸示意图；
图17示意性地示出了根据本发明实施方式三中的一个示例性实施方式的弹性密封件和鞘管接头的结构示意图；
图18示意性地示出了根据本发明实施方式三中的一个示例性实施方式的输送系统的剖面结构示意图；
图19示意性地示出了根据本发明实施方式三中的一个示例性实施方式的输送系统的零件爆炸示意图；
图20示意性地示出了根据本发明实施方式三中的一个示例性实施方式的输送系统的剖面结构示意图；
图21示意性地示出了根据本发明实施方式四的鞘管接头与装载器的结构示意图；
图22示意性地示出了根据本发明实施方式五的鞘管接头与装载器的结构示意图；
图23示意性地示出了根据本发明实施方式六的输送系统的结构示意图。
图24示意性地示出了根据本发明实施方式六的输送系统的剖面结构示意图。
具体实施方式
下面将参照附图更详细地描述本公开的示例性实施方式。虽然附图中显示了本公开的示例性实施方式，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施方式所限制。相反，提供这些实施方式是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
应理解的是，文中使用的术语仅出于描述特定示例实施方式的目的，而无意于进行限制。除非上下文另外明确地指出，否则如文中使用的单数形式“一”、“一个”以及“所述”也可以表示包括复数形式。术语“包括”、“包含”、“含有”以及“具有”是包含性的，并且因此指明所陈述的特征、步骤、操作、元 件和/或部件的存在，但并不排除存在或者添加一个或多个其它特征、步骤、操作、元件、部件、和/或它们的组合。文中描述的方法步骤、过程、以及操作不解释为必须要求它们以所描述或说明的特定顺序执行，除非明确指出执行顺序。还应当理解，可以使用另外或者替代的步骤。
尽管可以在文中使用术语第一、第二、第三等来描述多个元件、部件、区域、层和/或部段，但是，这些元件、部件、区域、层和/或部段不应被这些术语所限制。这些术语可以仅用来将一个元件、部件、区域、层或部段与另一区域、层或部段区分开。除非上下文明确地指出，否则诸如“第一”、“第二”之类的术语以及其它数字术语在文中使用时并不暗示顺序或者次序。因此，以下讨论的第一元件、部件、区域、层或部段在不脱离示例实施方式的教导的情况下可以被称作第二元件、部件、区域、层或部段。
为了便于描述，可以在文中使用空间相对关系术语来描述如图中示出的一个元件或者特征相对于另一元件或者特征的关系，这些相对关系术语例如为“内部”、“外部”、“内侧”、“外侧”、“下面”、“下方”、“上面”、“上方”等。这种空间相对关系术语意于包括除图中描绘的方位之外的在使用或者操作中装置的不同方位。例如，如果在图中的装置翻转，那么描述为“在其它元件或者特征下面”或者“在其它元件或者特征下方”的元件将随后定向为“在其它元件或者特征上面”或者“在其它元件或者特征上方”。因此，示例术语“在……下方”可以包括在上和在下的方位。装置可以另外定向(旋转90度或者在其它方向)并且文中使用的空间相对关系描述符相应地进行解释。
需要说明的是，采用“远端”、“近端”作为方位词，该方位词为介入医疗器械领域惯用术语，其中“远端”表示手术过程中远离操作者的一端，“近端”表示手术过程中靠近操作者的一端。轴向，指平行于医疗器械远端中心和近端中心连线的方向；径向，指垂直于上述轴向的方向。
请结合图1和图2所示，根据本发明的实施方式，提出了一种输送器100。
输送器100包括止血阀10和输送鞘管30。止血阀10包括阀座11、弹性密封件12和鞘管接头13，弹性密封件12设置于阀座11内，鞘管接头13大致呈管状，鞘管接头13的远端伸入阀座11内并可在阀座11内轴向移动。自远端至近端的方向，阀座11、弹性密封件12和鞘管接头13顺次设置，并且 阀座11、弹性密封件12和鞘管接头13共同限定出轴向延伸的输送通道，即输送通道包括至少三个依次连接的节段，各节段的输送通道分别位于阀座11、弹性密封件12和鞘管接头13上。输送通道的两端分别与输送鞘管30和鞘管接头13的近端连通。
本实施方式中提出的输送器100，鞘管接头13在移动行程内挤压弹性密封件12使其在第一状态和第二状态之间转换。在第一状态下，输送通道处于导通状态，以使输送通道连通，以便于医疗器械或者药物等能够通过输送通道和输送鞘管30被输送至治疗部位；在第二状态下，输送通道处于封闭状态，防止血液泄漏。可理解地，在介入手术过程中，通过轴向移动止血阀10中鞘管接头13，即可实现输送通道的连通或封闭，无需对止血阀10以及输送鞘管30以及医疗器械或装载器进行组合拆装，减少了术式操作步骤并缩短手术时间，并且避免了由于现场人为组装因素使输送鞘管30与止血阀10配合不紧密而产生泄露的风险。
以下将结合具体实施方式进一步详细说明本发明的技术方案。
实施方式一
本实施方式中，请结合图1、图2和图3所示，输送器100还包括：调节螺母20。具体地，阀座11包括相连通的第一通道111和容纳腔112，第一通道111相对于容纳腔112位于远端的一侧，容纳腔112的直径大于第一通道111的直径，第一通道111的近端在容纳腔112的远端的壁面上形成输送开口1111(请参考图8)，第一通道111的远端与输送鞘管30连通。弹性密封件12设于容纳腔112并与容纳腔112的远端的壁面相抵，弹性密封件12封堵在输送开口1111位置处，以用于开启或封闭输送开口1111。鞘管接头13设于弹性密封件12背离第一通道111的一侧，鞘管接头13的远端可沿轴向移动地设于容纳腔112并与弹性密封件12抵接，鞘管接头13的近端伸出容纳腔112，可以与医疗器械或者装载器相连。第一通道111构成输送通道的远端分段，弹性密封件12构成输送通道的中部分段，鞘管接头13的内腔构成输送通道的近端分段。
本实施方式中，弹性密封件12呈柱状结构，弹性密封件12的外周面轮廓与容纳腔112的内周面轮廓相匹配，使弹性密封件12的外周面轮廓能够与容 纳腔112的内周面轮廓紧密贴合。弹性密封件12设有贯穿弹性密封件12的近端和远端的交叉切缝121，交叉切缝121可以是由两条直线切缝交叉形成的十字切缝，也可以是由多条直线切缝形成的米字型切缝，还可以是一字切缝。在未受外力作用的情况下，交叉切缝121自由伸展而闭合，从而将输送开口1111封堵。鞘管接头13的远端设置为便于插入并挤压该交叉切缝121的圆锥形结构。当鞘管接头13的远端位于弹性密封件12的近端一侧，也就是鞘管接头13的近端位于交叉切缝121外时，弹性密封件12处于第二状态，交叉切缝121闭合以封闭输送开口1111，从而封闭输送通道。当鞘管接头13朝向远端的一侧移动，使鞘管接头13的远端插入交叉切缝121并挤压交叉切缝121，使交叉切缝处的弹性密封件12朝向远离轴心方向一侧形变，直至鞘管接头13的远端从交叉切缝的远端穿出时，鞘管接头13的内腔直接与第一通道111连通，使得输送通道整体处于连通状态。
本实施方式中，弹性密封件12为硅胶材料制成的硅胶件，在外力作用下，硅胶件具有较高的弹性变形能力，并具有较佳的弹性恢复性能，从而确保弹性密封件12能够在第一状态和第二状态之间转换。弹性密封件12还可以为乳胶或聚氨酯等材料制备而成，化学性质稳定且具有弹性。
如图2和图3所示，调节螺母20可转动地套设于鞘管接头13外，调节螺母20带动鞘管接头13轴向移动。本实施方式中，调节螺母20的近端与鞘管接头13可转动连接，调节螺母20套设在阀座11上，旋动调节螺母20使调节螺母20轴向运动，带动鞘管接头13轴向移动。具体地，在阀座11的外周面靠近近端的一侧设有第一外螺纹113，调节螺母20的内壁沿周向设有与第一外螺纹113配合的第一内螺纹21，使调节螺母20以旋进的方式实现与阀座11的可移动相连。调节螺母20的内壁面靠近近端的一侧设有沿周向设置的第一环状凸起22，在鞘管接头13的外周面沿周向设有第一环状凹槽1322，第一环状凸起22可转动地设于第一环状凹槽1322内，在转动调节螺母20以使其沿轴向方向相对于阀座11移动时，通过第一环状凸起22与第一环状凹槽1322的侧壁之间的配合，带动鞘管接头13沿轴向方向移动。即通过正向或反向旋转调节螺母，即可实现输送通道封闭或连通，但是不会带动鞘管接头13周向旋转。通过设置调节螺母20可转动地套设于鞘管接头13外，调节螺母20不 能带动鞘管接头13周向旋转运动，调节螺母20只能带动鞘管接头13轴向移动，避免调节螺母20在调节鞘管接头13的位置时，鞘管接头13周向旋转导致连接在鞘管接头13上的其他装置或器械的脱落，导致手术失败。
本实施方式中，如图5所示，鞘管接头13包括管体部131和设于管体部131外周面的滑动配合部132，滑动配合部132的外周面与容纳腔112的周向内壁滑动配合，通过滑动配合部132与容纳腔112的滑动配合，使鞘管接头13能够沿轴向移动。在管体部131的外周面还设有凸环1311，沿轴向方向，凸环1311与滑动配合部132间隔设置并位于滑动配合部132的近端的一侧，凸环1311与滑动配合部132之间限定出第一环状凹槽1322。
可理解地，在其他实施方式中，调节螺母可转动地套设于阀座和鞘管接头外，调节螺母的内壁沿周向设有第一内螺纹，调节螺母的内壁面靠近远端的一侧设有沿周向设置的第一环状凸起，在阀座的外周面沿周向设有第一环状凹槽，第一环状凸起可转动地设于第一环状凹槽内，在鞘管接头的外周面设置与第一内螺纹配合的第一外螺纹，在转动调节螺母时，通过第一环状凸起与第一环状凹槽的侧壁之间的配合，使调节螺母沿轴向方向相对于阀座静止，并通过第一内螺纹与第一外螺纹的配合，驱动鞘管接头相对于调节螺母和阀座沿轴向方向移动，从而实现输送通道封闭或连通。此实施方式需要进一步设置限制周向运动的装置，例如图6中的第一导向结构1121和第二导向结构1321，防止鞘管接头周向运动。
如图6所示，阀座11还可以设有沿轴向延伸的第一导向结构1121，鞘管接头13设有与第一导向结构1121滑动配合的第二导向结构1321，在第一导向结构1121与第二导向结构1321的导向作用下，使鞘管接头13能够相对于阀座11沿轴向方向移动，并限制鞘管接头13相对于阀座11沿周向转动，进一步使输送鞘管30和装载器40均能够保持周向方向位置度的稳定性，更加方便了输送系统的操作。
需要说明的是，本实施方式中，如图6所示，第一导向结构1121设于容纳腔112的周向内壁，且第一导向结构1121为多个导向凸起，导向凸起的长度方向沿轴向方向延伸，且多个导向凸起沿周向方向依次间隔地设于容纳腔112的内壁上。第二导向结构1321设于鞘管接头13的外周面，具体地，第二 导向结构1321为设于滑动配合部132外周面上的导向凹槽，导向凹槽的长度方向沿轴向方向延伸，且多个导向凹槽沿周向方向依次间隔地设于滑动配合部132外周面上，每个导向凹槽与一个导向凸起相对应，导向凸起可沿轴向方向滑动地设于导向凹槽内，以通过导向凸起与导向凹槽的配合限制鞘管接头13相对于阀座11沿周向方向转动。
在其他实施方式中，第一导向结构可以是导向凹槽，第二导向结构为导向凸起。
进一步地，本实施方式中，如图2和图3所示，输送器100还包括：扩张器50。扩张器50包括相互连接的连接件51和贯穿管52，具体地，连接件51套设于贯穿管52外并能够相对于贯穿管52沿周向方向转动，贯穿管52套设于鞘管接头13内，且贯穿管52的远端自鞘管接头13的远端伸出。贯穿管52的外周面沿周向设有第二环状凸起，连接件51的周向内壁在第二环状凸起的近端的一侧设有与第二环状凸起(图中未示出)止挡配合的凸台结构，使连接件51和贯穿管52可以相对周向转动，且连接件51的周向内壁靠近远端的一侧设有与第二外螺纹134配合的第三内螺纹510，转动连接件51时，通过第二外螺纹134与第三内螺纹510的配合使连接件51能够沿轴向相对于鞘管接头13移动，并能够推动贯穿管52相对于鞘管接头13向远端移动，并使贯穿管52的远端贯穿并扩张交叉切缝121，同时连接件51不带动贯穿管52进行周向转动。详细地，贯穿管52的远端设置为锥形结构，方便贯穿管52的远端插入交叉切缝121。
需要强调的是，本发明提出的输送系统，扩张器并不是本输送系统中的必要器件，其作用为辅助鞘管接头穿入交叉切缝中，在一些实施方式中，可去除扩张器，鞘管接头可以直接贯穿交叉切缝。
需要说明的是，使鞘管接头13的近端穿入交叉切缝121后，需将扩张器50从鞘管接头13上拆除，再将鞘管接头13与其他器械连接。
本实施方式中，如图1和图3所示，输送系统还包括三通阀17，阀座11设有与第一通道111连通的第二通道114，三通阀17与第二通道114连通，以便在手术过程中，通过三通阀17向第一通道111以及输送鞘管30内注射药剂等其他手术需要的物质或者排气等操作。
参看图4，本实施方式还提供一种输送系统200，该输送系统200包括输送器100和装载器40，输送器100与装载器40相连。
在本实施方式中，装载器40包括连接元件41和与连接元件41连接的装载鞘管42，鞘管接头13的靠近近端的外周面设有第二外螺纹134，连接元件41套设于鞘管接头13外，且连接元件41的内壁面设有与第二外螺纹134配合的第二内螺纹(图中未示出)，通过第二外螺纹134与第二内螺纹的螺纹配合实现连接元件41与鞘管接头13可拆卸地相连，并使装载鞘管42与鞘管接头13连通，以便于将收纳于装载器40中的医疗器械能够在输送钢缆的推动下经鞘管接头13以及第一通道111移动至输送鞘管30中。
实施方式二
本实施方式中的输送鞘管30、装载器40以及鞘管接头13的结构与实施方式一中的输送鞘管30、装载器40以及鞘管接头13的结构基本相同，其不同之处在于阀座11和弹性密封件12结构，以下将描述实施方式二与实施方式一的不同之处，对于实施方式二与实施方式一的相同或相似之处在此不再赘述。
本实施方式中，如图5和图6所示，输送器100还包括环状固定件14，环状固定件14设于容纳腔112并与阀座11固定连接，环状固定件14位于弹性密封件12的近端一侧并将弹性密封件12压抵于容纳腔112的远端壁面。环状固定件14的主要作用为将弹性密封件12固定并压抵在容纳腔112的远端壁面上，提高弹性密封件12的贴壁效果，以便更好地封闭输送开口1111，放置血液泄露。进一步地，环状固定件14可以为具有自润滑效果的材料，例如可以为聚酰胺(PA)、聚甲醛(POM)等，能够减小鞘管接头13进入弹性密封件12的作用力，方便鞘管接头13进入弹性密封件12内。
在一个示例性地实施方式中，请结合图5至图9所示，容纳腔112的远端壁面上设有多个卡接柱1123，卡接柱1123呈柱状，并且卡接柱1123的轴线沿轴向延伸。多个卡接柱围绕输送开口1111依次间隔地设置。弹性密封件12设有多个贯穿孔125，贯穿孔125贯穿弹性密封件12的近端和远端，每个贯穿孔125与一个卡接柱1123相对应，使卡接柱1123能够穿过贯穿孔125并从贯穿孔125的近端伸出。环状固定件14设有多个卡接孔142，每个卡接孔142与一个卡接柱1123相对应，卡接柱1123插接于卡接孔142内，以实现环状固 定件14与阀座11的固定连接。其中，卡接柱1123与卡接孔142过盈配合，以使环状固定件14较为牢固的与阀座11相连，防止鞘管接头13挤压弹性密封件12时造成弹性密封件12的松动。
本实施方式中，如图9所示，每个卡接柱1123对应一个导向凸起，以便于在导向凸起与导向凹槽的导向作用下，使卡接柱1123能够准确地对准贯穿孔125，并在安装过程中，使卡接柱1123顺利的穿过贯穿孔125。还需说明的是，卡接柱1123穿设于贯穿孔125内还能够避免弹性密封件12相对于阀座11沿周向方向转动，防止鞘管接头13挤压弹性密封件12时造成弹性密封件12的密封性减弱。
在一个示例性的实施方式中，请结合图5至图9所示，容纳腔112的远端壁面上设有第一环状凸筋1122，多个卡接柱1123均设于第一环状凸筋1122上，第一环状凸筋1122围绕输送开口1111设置。在弹性密封件12的远端面设有第一环状配合凹槽122，第一环状配合凹槽122环绕交叉切缝121设置，第一环状凸筋1122的轮廓与第一环状配合凹槽122的轮廓相匹配，当弹性密封件12压抵于容纳腔112的远端壁面时，第一环状凸筋1122伸入第一环状配合凹槽122内。需要说明的是，通过设置第一环状凸筋1122和第一环状配合凹槽122，使弹性密封件12的远端端面与容纳腔112的远端壁面之间形成多个连续的密封面，且各密封面之间不共面，使鞘管接头13穿设于交叉切缝121并挤压弹性密封件12使弹性密封件12发生形变的过程中，至少一个密封面保持密封状态即可避免血液泄露。因此，多个不共面的密封面可以提高弹性密封件12与容纳腔112的远端端面之间的密封性。还需说明的是，弹性密封件12压抵于容纳腔112的远端壁面时，第一环状凸筋1122环设于交叉切缝121外，第一环状凸筋1122为刚性材料，在交叉切缝121被挤压使交叉切缝121部分的弹性密封件12朝向远离轴心的方向形变时，第一环状凸筋1122的内壁能提供朝向轴心方向的支撑力，减小弹性密封件12整体变形的程度，使至少部分密封面能够保持密封状态，防止由于弹性密封件12的形变而导致密封不严而导致血液泄露的情况出现。
进一步地，如图7和图8所示，环状固定件14的远端端面设有第二环状凸筋141，在弹性密封件12的近端面设有第二环状配合凹槽123，第二环状配 合凹槽123环设于交叉切缝121外，第二环状凸筋141的轮廓与第二环状配合凹槽123的轮廓相匹配，当环状固定件14压抵于弹性密封件12的近端端面时，第二环状凸筋141伸入第二环状配合凹槽123内。需要说明的是，通过设置第二环状凸筋141和第二环状配合凹槽123，当环状固定件14压抵于弹性密封件12的近端端面时，第二环状凸筋141环设于交叉切缝121外，第二环状凸筋141具有一定的支撑性，在交叉切缝121被挤压使交叉切缝121部分的弹性密封件12朝向远离轴心的方向形变时，第二环状凸筋141的内壁能进一步提供朝向轴心方向的支撑力，减小弹性密封件12整体变形的程度，使至少部分密封面能够保持密封状态，防止由于弹性密封件12的形变而导致密封不严而导致血液泄露的情况出现。
参看图5，在本实施例中，弹性密封件12的近端和远端分别向弹性密封件12的中心凹陷，并且参看图7和图8，从近端至远端的方向交叉切缝121的大小保持不变。在另一实施例中，参看图10至图12，弹性密封件12的交叉切缝121的位置处近端向远端凸出，从而方便其他器械，例如装载器从近端向远端穿入，同时已经插入的器械容易固定在弹性密封件12的交叉切缝121的位置处，不容易从远端向近端抽出，能够提高操作的稳定性和安全性。进一步地，交叉切缝121的近端开口121a小于远端开口121b，提高密封性。
实施方式三
本实施方式中的输送鞘管30和装载器40的结构与实施方式一中的输送鞘管30、装载器40的结构基本相同，其不同之处在于止血阀10中弹性密封件12和鞘管接头13结构，以下将描述实施方式三与实施方式一或实施方式二的不同之处，对于实施方式三与实施方式一或实施方式二的相同或相似之处在此不再赘述。
本实施方式中，如图13和图14所示，弹性密封件12呈环状结构，弹性密封件12具有贯穿弹性密封件12的近端和远端的第一开口124。详细地，弹性密封件12位于第一通道111和鞘管接头13之间，且第一通道111、第一开口124和鞘管接头13的内腔依次连通以组成输送通道，即第一通道111构成输送通道的远端分段，第一开口124构成输送通道的中部分段，鞘管接头13的内腔构成输送通道的近端分段。
其中，鞘管接头13的远端配置为与弹性密封件12的近端端面相抵接，以便在鞘管接头13沿轴向移动时挤压弹性密封件12，使弹性密封件12变形。具体地，弹性密封件12在第一状态下，第一通道111通过第一开口124与鞘管接头13连通。弹性密封件12在第二状态下，至少部分第一开口124的内壁朝向弹性密封件12的轴心形变使第一开口124闭合以封闭输送通道。
在一个示例性的实施方式中，如图13和图14所示，为方便鞘管接头13挤压弹性密封件12，使弹性密封件12变形过程更加顺畅，止血阀10还包括辅助垫圈16，辅助垫圈16设于弹性密封件12与鞘管接头13之间，辅助垫圈16与鞘管接头13的远端相连并与弹性密封件垫圈的近端相抵。本实施方式中，滑动配合部132包括第一挡板部1323、第二挡板部1324和至少一个支撑肋筋1325，第一挡板部1323和第二挡板部1324沿周向设于管体部131外周面上，且第一挡板部1323和第二挡板部1324沿轴向方向间隔设置，第一挡板部1323相对第二挡板部1324位于远端的一侧，支撑肋筋1325沿轴向方向延伸并分别与第一挡板部1323和第二挡板部1324相连。辅助垫圈16套设于管体部131外并位于弹性密封件12和第一挡板部1323之间，当推动鞘管接头13朝向远端一侧移动时，第一挡板部1323通过辅助垫圈16挤压弹性密封件12并使其变形。其中，辅助垫圈16由具有自润滑效果的材料制成，例如聚酰胺(PA)、聚甲醛(POM)等材料，以减小弹性密封件12在形变过程中与鞘管接头13以及容纳腔112的内壁之间的摩擦力，从而达到使弹性密封件12变形过程更加顺畅的目的。本实施方式中，凸环1311与第二挡板部1324之间限定出第一环状凹槽1322。
本实施方式中，如图14和图15所示，弹性密封件12的近端和远端端面均设置为锥形面126，锥形面126的轴心与第一开口124的轴心重合，容纳腔112的远端壁面以及辅助垫圈16的远端端面均与锥形面126相贴合，利用锥形面126的导向作用更利于鞘管接头13以及辅助垫圈16与弹性密封件12轴向对准。在其他实施例中，弹性密封件12的近端和远端端面还可以设置为平面。
在另一个示例性的实施方式中，如图19和图20所示，止血阀10还包括硅胶管15，套设于第一开口124内，硅胶管15的远端与容纳腔112的远端壁 面相抵，硅胶管15的近端与鞘管接头13的远端相连。进一步地，硅胶管15的近端开口与鞘管接头13的远端开口大小相同并相互对接。可以理解的，在输送器100装配前，硅胶管15与鞘管接头13完成组装，能保证硅胶管15的内腔与鞘管接头13的内腔顺滑连接，方便输送器械或者药物等。
具体地，滑动配合部132包括第一挡板部1323、第二挡板部1324和至少一个支撑肋筋1325，第一挡板部1323和第二挡板部1324沿周向设于管体部131外周面上，且第一挡板部1323和第二挡板部1324沿轴向方向间隔设置，第一挡板部1323相对第二挡板部1324位于远端的一侧，支撑肋筋1325沿轴向方向延伸并分别与第一挡板部1323和第二挡板部1324相连。第一挡板部1323的远端端面与弹性密封件12的近端端面相抵，管体部131的远端自第一挡板部1323的远端端面伸出并插入第一开口124内，且管体部131的远端的外周面与第一开口124的内壁面相抵。容纳腔112的远端壁面围绕第一开口124的边缘设有限位凸环1124，沿周向方向，限位凸环1124与第一开口124的内壁之间具有间隙。硅胶管15的远端插设于限位凸环1124与第一开口124的内壁之间的间隙内，硅胶管15的近端与管体部131的远端固定相连。详细地，调节螺母20通过螺纹旋动，带动鞘管接头13轴向移动，当往远端运动时，挤压弹性密封件12，弹性密封件12继而挤压硅胶管15，弹性密封件12和硅胶管15同时往轴心移动变形，实现管道的封闭。
在另一个示例性的实施方式中，如图16、图17和图18所示，鞘管接头13的远端设有喇叭状开口结构133，开口结构133的内壁具有导向斜面1331，导向斜面1331用于挤压弹性密封件12的外周面以径向压缩弹性密封件12，弹性密封件12被挤入到喇叭状的开口结构133中实现径向压缩，从而闭合第一开口124。
具体地，弹性密封件12包括呈管状的垫圈主体127以及环设于垫圈主体127外周面的多个支撑部128，多个支撑部128绕垫圈主体127的周向依次间隔地排布，支撑部128远离垫圈主体127的一端与容纳腔112的内壁贴合。滑动配合部132包括多个支撑肋筋1325，多个支撑肋筋1325沿周向方向依次间隔地设于管体部131外周面上，支撑肋筋1325的长度方向沿轴向方向延伸，每个支撑肋筋1325的远端设有第一挡板部1323，每个支撑肋筋1325的近端 设有第二挡板部1324。第一挡板部1323与管体部131的轴线方向呈预设夹角设置，且第一挡板部1323的远端相对于第一挡板部1323的近端远离管体部131的轴心，使多个第一挡板部1323形成喇叭状的开口结构133，第一挡板部1323朝向管体部131的轴心的一侧面为具有导向作用的导向斜面1331，每个第一挡板部1323与一个支撑部128相对应，当鞘管接头13朝向远端移动挤压弹性密封件12时，导向斜面1331挤压支撑部128远离垫圈主体127的一侧的端面，以径向压缩弹性密封件12，使弹性密封件12挤入到喇叭开口结构133中，从而闭合第一开口124，以实现封闭输送通道。
本实施方式中，支撑部128的数量与支撑肋筋1325的数量相同，全部支撑部128绕垫圈主体127的周向均匀的布置。全部支撑肋筋1325绕管体部131的周向均匀的布置。
本实施方式中，如图16所示，容纳腔112内还设有多个限位凸筋1125，限位凸筋1125由容纳腔112的远端壁面沿轴向方向朝向近端的一侧凸起设置，且多个限位凸筋1125围绕输送开口1111的周向依次间隔地设置，多个限位凸筋1125以及容纳腔112的周向内壁共同围合出容纳弹性密封件12的导向空腔1126，导向空腔1126的内壁轮廓与弹性密封件12的外周面的轮廓相匹配，以对弹性密封件12的位置进行限位。
实施方式四
本实施方式中的输送鞘管30和止血阀10的结构与实施方式一或实施例二或实施例三中的输送鞘管30和止血阀10的结构基本相同，其不同之处在于止血阀10中鞘管接头13和装载器40结构，以下将描述实施方式四与实施方式一或实施例二或实施例三中的不同之处，对于实施方式二与实施方式一或实施例二或实施例三中的相同或相似之处在此不再赘述。
本实施方式中，如图21所示，装载器40包括连接元件41和与连接元件41固定连接的装载鞘管42，鞘管接头13的内壁靠近近端的一侧设有凸出内壁的卡扣135，在连接元件41的外周面设有与卡扣135卡接配合的卡槽412，连接元件41插接于鞘管接头13内并通过卡扣135与卡槽412的配合实现卡接连接，以便于快速地完成输送系统的安装或拆卸。
进一步地，鞘管接头13的近端设有至少一个开口槽136，开口槽136的 开口位于鞘管接头13的近端，在连接元件41插入鞘管接头13时，通过设置开口槽136使鞘管接头13的近端更容易扩张形变，使连接元件41能够顺利地插入鞘管接头13以实现卡接连接。本实施方式中，鞘管接头13的近端设有多个开口槽136，多个开口槽136围绕鞘管接头13的轴心均匀地布置。
实施方式五
本实施方式中的输送鞘管30和止血阀10的结构与实施方式一或实施例二或实施例三中的输送鞘管30和止血阀10的结构基本相同，其不同之处在于止血阀10中鞘管接头13和装载器40结构，以下将描述实施方式五与实施方式一或实施例二或实施例三中的不同之处，对于实施方式五与实施方式一或实施例二或实施例三中的相同或相似之处在此不再赘述。
本实施方式中，如图22所示，装载器40包括连接元件41和与连接元件41固定连接的装载鞘管42，鞘管接头13的内壁靠近近端的一侧设有凸出内壁的卡扣135，在连接元件41的外周面设有与卡扣135卡接配合的卡槽412，连接元件41插接于鞘管接头13内并通过卡扣135与卡槽412的配合实现卡接连接，以便于快速地完成输送系统的安装或拆卸。
详细地，卡槽412的长度方向沿连接元件41的周向方向延伸，并且，沿长度方向，卡槽412包括第一端和第二端，在第一端的远端一侧的侧壁设有进口4121，当连接元件41朝向远端的一侧移动时，卡扣135能够通过进口4121进入到卡槽412内，卡扣135上设置有卡扣凹槽1351，靠近第二端的卡槽412底壁还设有凸块4122，在卡扣135通过进口4121进入到卡槽412后，通过周向旋转装载器40使卡扣135先与凸块4122相抵，然后继续旋转使卡扣凹槽1351与凸块4122卡接，此时卡扣135的一端与卡槽412的第二端的侧壁4123相抵，实现鞘管接头13与连接元件41的卡接。并且，在装载器40整体轴向移动时，通过卡扣135与卡槽412远端或近端侧壁的配合，防止装载器40与鞘管接头13松脱。
实施方式六
上述实施方式一至五中的输送器100为输送鞘管30直接与止血阀10连接。在本实施例中的输送器100还包括手柄组件101，其中，止血阀10的近端插入手柄组件101内，输送鞘管30的近端穿过手柄组件101进入至止血阀10 中。可以理解的，手柄组件101内可以设置调弯组件102，调弯组件102是本领域技术人员所熟知的结构，例如通过滑块与牵拉线的近端连接，牵拉线的远端与输送鞘管30的远端连接，滑块轴向运动拉动牵拉线运动，从而带动输送鞘管30远端弯曲与否，具体结构不在此赘述。手柄组件101内还可以设置其他结构。
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。

Claims (15)

  1. 一种输送器，其特征在于，所述输送器包括：
    输送鞘管；
    止血阀，所述止血阀包括阀座、弹性密封件和鞘管接头，所述弹性密封件设置于所述阀座内，所述弹性密封件具有第一状态和第二状态，所述鞘管接头的远端伸入所述阀座内并可在所述阀座内轴向移动，所述阀座、所述弹性密封件和所述鞘管接头共同限定出输送通道，所述输送通道与所述输送鞘管连通；
    调节螺母，可转动地套设于所述鞘管接头外，所述调节螺母带动所述鞘管接头轴向移动；
    所述鞘管接头在移动行程内挤压所述弹性密封件使其在所述第一状态和所述第二状态之间转换，在所述第一状态下，所述输送通道处于导通状态，在所述第二状态下，所述输送通道处于封闭状态。
  2. 根据权利要求1所述的输送器，其特征在于，所述调节螺母的近端与所述鞘管接头可转动连接，所述调节螺母套设在所述阀座上，旋动所述调节螺母使所述调节螺母轴向运动，带动所述鞘管接头轴向移动。
  3. 根据权利要求1所述的输送器，其特征在于，
    所述弹性密封件设有贯穿所述弹性密封件的近端和远端的切缝；
    在所述第一状态下，所述鞘管接头穿设于所述切缝内，所述鞘管接头的远端自所述切缝的远端伸出；
    在所述第二状态下，所述鞘管接头的近端位于所述切缝外，所述切缝闭合以封闭所述输送通道。
  4. 根据权利要求3所述的输送器，其特征在于，所述输送器还包括：
    扩张器，所述扩张器包括连接件以及与所述连接件相连的贯穿管，所述连接件可拆卸地与所述鞘管接头相连，所述贯穿管套设于所述鞘管接头内，且所述贯穿管的远端自所述鞘管接头的远端伸出。
  5. 根据权利要求3所述的输送器，其特征在于，所述输送器还包括：
    环状固定件，设于所述阀座内，所述环状固定件位于所述弹性密封件的近端一侧并将所述弹性密封件压抵于所述阀座内。
  6. 根据权利要求3所述的输送器，其特征在于，所述弹性密封件从近端向远端凸出；和/或，所述切缝的近端开口小于所述切缝的远端开口。
  7. 根据权利要求1所述的输送器，其特征在于，
    所述弹性密封件呈环状结构，所述弹性密封件具有贯穿所述弹性密封件的近端和远端的第一开口；
    在所述第一状态下，所述第一开口与所述鞘管接头连通；
    在所述第二状态下，至少部分所述第一开口的内壁朝向所述弹性密封件的轴心形变使所述第一开口闭合以封闭所述输送通道。
  8. 根据权利要求7所述的输送器，其特征在于，所述输送器还包括：
    硅胶管，所述硅胶管的近端与所述鞘管接头的远端相连，所述硅胶管设置于所述第一开口内。
  9. 根据权利要求8所述的输送器，其特征在于，所述硅胶管的近端开口与所述鞘管接头的远端开口大小相同并相互对接。
  10. 根据权利要求7所述的输送器，其特征在于，所述输送器还包括：
    辅助垫圈，所述辅助垫圈设于所述弹性密封件与所述鞘管接头之间；
    其中，所述辅助垫圈为自润滑件。
  11. 根据权利要求7所述的输送器，其特征在于，
    所述鞘管接头的远端设有喇叭状开口结构，所述开口结构的内壁具有导向斜面，所述导向斜面用于挤压所述弹性密封件的外周面以径向压缩所述弹性密 封件。
  12. 根据权利要求1所述的输送器，其特征在于，
    所述阀座设有沿轴向延伸的第一导向结构，所述鞘管接头设有与所述第一导向结构滑动配合的第二导向结构，以限制所述鞘管接头沿周向转动。
  13. 根据权利要求1所述的输送器，其特征在于，所述输送器还包括手柄组件，所述止血阀的近端插入所述手柄组件内。
  14. 一种输送系统，其特征在于，包括权利要求1～13任一所述的输送器和装载器，所述输送器与所述装载器相连。
  15. 根据权利要求14所述的输送系统，其特征在于，
    所述装载器包括连接元件和与所述连接元件连接的装载鞘管，所述连接元件与所述鞘管接头的远端可拆卸地相连，且所述装载鞘管与所述鞘管接头连通。
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