WO2025002304A1 - Instrument chirurgical - Google Patents

Instrument chirurgical Download PDF

Info

Publication number
WO2025002304A1
WO2025002304A1 PCT/CN2024/102197 CN2024102197W WO2025002304A1 WO 2025002304 A1 WO2025002304 A1 WO 2025002304A1 CN 2024102197 W CN2024102197 W CN 2024102197W WO 2025002304 A1 WO2025002304 A1 WO 2025002304A1
Authority
WO
WIPO (PCT)
Prior art keywords
assembly
locking
surgical instrument
outer sleeve
handle
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/CN2024/102197
Other languages
English (en)
Chinese (zh)
Inventor
孙宝峰
宋强
王吉胜
张建良
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.)
Fulbright Medical Inc
Original Assignee
Fulbright Medical 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
Priority claimed from CN202310800904.1A external-priority patent/CN117100343A/zh
Priority claimed from CN202310800963.9A external-priority patent/CN117100344A/zh
Priority claimed from CN202310796810.1A external-priority patent/CN117481724B/zh
Application filed by Fulbright Medical Inc filed Critical Fulbright Medical Inc
Publication of WO2025002304A1 publication Critical patent/WO2025002304A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/11—Surgical instruments, devices or methods for performing anastomosis; Buttons for anastomosis
    • A61B17/115—Staplers for performing anastomosis, e.g. in a single operation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B17/3209—Incision instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J17/00—Joints

Definitions

  • the present disclosure relates to the technical field of medical instruments, and in particular to a surgical instrument.
  • Surgical cutting staplers are commonly used medical instruments to replace manual suturing. Their main working principle is to use a cutting knife to separate tissues and titanium staples to staple them, similar to a stapler. There are many types of staplers according to their suitability for different parts of the body. For surgical cutting staplers, their working principle is to enter the patient's body through the cannula of the puncture device that is precisely positioned at the surgical site, and then make a longitudinal incision in the tissue and apply staples on the opposite side of the incision, thereby separating and staple the tissues.
  • the surgical instrument includes a jaw assembly, a cutting knife assembly and an operating assembly, and the operating assembly is connected to the jaw assembly and the cutting knife assembly.
  • the medical staff operates the operating assembly to turn the jaw assembly to correspond to the tissue to be clamped.
  • the medical staff controls the jaw assembly to close and clamp the human tissue.
  • the jaw assembly needs to be locked to prevent the jaw assembly from moving and pulling the tissue when clamping it.
  • An embodiment of the present disclosure provides a surgical instrument capable of stably locking a jaw assembly to prevent the jaw assembly from rotating.
  • the embodiment of the present disclosure provides a surgical instrument, comprising: a jaw assembly, a sleeve assembly, an angle steering member and a locking member, wherein the angle steering member is rotatably connected to the sleeve assembly, the jaw assembly is connected to the angle steering member, and in response to the rotation of the angle steering member, the jaw assembly is configured To rotate relative to the sleeve assembly;
  • the angle steering member includes an outer peripheral surface;
  • the angle steering member has a wall portion and a matching portion, the outer peripheral surface is arranged on the outside of the wall portion, and the matching portion is arranged on the inside of the wall portion;
  • the locking member has an unlocked state and a locked state; when in the unlocked state, the locking member is separated from the matching portion, and the jaw assembly is configured to rotate relative to the sleeve assembly in response to the rotation of the angle steering member; when in the locked state, the locking member cooperates with the matching portion to prevent the jaw assembly from rotating relative to the sleeve assembly.
  • the matching portion is arranged on the proximal side of the rotation axis of the angle steering member, and the locking member moves proximally from the unlocking position to the locking position to achieve switching from the unlocking state to the locking state.
  • the surgical instrument also includes a motion conversion structure, wherein the sleeve assembly includes an outer sleeve, the outer sleeve is connected to the jaw assembly, and the outer sleeve is connected to the locking member through the motion conversion structure, when the outer sleeve is located at the proximal position, the jaw assembly is in an open state, and the locking member is in the unlocked state; when the outer sleeve moves from the proximal position to the distal position, the outer sleeve drives the jaw assembly to switch from the open state to the closed state, and the outer sleeve drives the locking member to move proximally through the motion conversion structure to switch the locking member from the unlocked state to the locked state.
  • the sleeve assembly includes an outer sleeve, the outer sleeve is connected to the jaw assembly, and the outer sleeve is connected to the locking member through the motion conversion structure, when the outer sleeve is located at the proximal position, the
  • the motion conversion structure includes a lever member, a rotating part, a first connecting part and a second connecting part, the lever member is connected to the rotating part and is rotatably connected to the frame through the rotating part, the first connecting part and the second connecting part are both connected to the lever member and are located on both sides of the rotating part; the outer sleeve is connected to the first connecting part, and the locking member is connected to the second connecting part; when the outer sleeve moves along a first direction to drive the first connecting part to move, the lever member rotates around the rotating part, so that the second connecting part drives the locking member to move along a second direction, and the second direction is opposite to the first direction.
  • the motion conversion structure includes a gear, a first rack and a second rack, the first rack and the second rack are located on both sides of the gear and are meshed with the gear, the first rack is connected to the outer sleeve, and the second rack is connected to the locking piece, and when the outer sleeve drives the first rack to move in a first direction, the gear rotates to drive the second rack and the locking piece to move in a second direction, and the first direction is opposite to the second direction.
  • the matching member is arranged on the distal side of the rotation axis of the angle steering member, and the locking member moves distally from the unlocking position to the locking position to achieve switching from the unlocking state to the locking state.
  • the sleeve assembly includes an outer sleeve, the outer sleeve is connected to the locking element, and the outer sleeve moves distally to drive the locking element to move distally, so that the locking element switches from the unlocked state to the locked state.
  • the surgical instrument also includes a frame and a transmission structure, and the outer sleeve is connected to the locking member through the transmission structure;
  • the transmission structure includes a lever member, a rotating part, a first connecting part and a second connecting part, the lever member is connected to the rotating part and is rotatably connected to the frame through the rotating part, the first connecting part and the second connecting part are both connected to the lever member and are both located on the same side of the rotating part;
  • the outer sleeve is connected to the first connecting part, and the locking member is connected to the second connecting part; when the outer sleeve moves along a first direction to drive the first connecting part to move, the lever member rotates around the rotating part, so that the second connecting part drives the locking member to move along the first direction.
  • a distance between the second connection portion and the rotating portion is smaller than a distance between the first connection portion and the rotating portion.
  • the first connecting portion is movably connected to the outer sleeve via a guide structure, and when the outer sleeve moves along the first direction, the first connecting portion is driven to rotate around the rotating portion via the guide structure.
  • the second connecting portion is movably connected to the locking member via a guide structure, and when the second connecting portion rotates around the rotating portion, the locking member is driven to move along the first direction via the guide structure.
  • the guide structure includes a moving rod and a moving groove, the moving rod is movably disposed in the moving groove, and the length direction of the moving groove is perpendicular or substantially perpendicular to the first direction.
  • the first direction is the axial direction of the sleeve assembly.
  • the jaw assembly has an open state and a closed state
  • the sleeve assembly includes an outer sleeve, which is connected to the locking member, and when the outer sleeve moves distally, the jaw assembly switches from the open state to the closed state; when the jaw assembly is in the open state, the locking member is in an unlocked state, and when the jaw assembly is in the closed state, the locking member is in a locked state.
  • the angle turning member has a plurality of the matching portions, and the plurality of the matching portions are arranged around the rotation axis of the angle turning member.
  • the locking member matches with at least one of the matching portions.
  • the angle between the extension line of the jaw assembly and the sleeve assembly is greater than or equal to 70°.
  • one of the matching part and the locking piece is provided with a locking tooth, and the other one is provided with a matching groove, the locking tooth matches with the matching groove to lock the matching part and the locking piece; the locking tooth is separated from the matching groove to unlock the matching part and the locking piece.
  • the surgical instrument further comprises a steering drive assembly, which drives the angle steering member to rotate when operated to adjust the angle between the jaw assembly and the sleeve assembly.
  • a steering drive assembly which drives the angle steering member to rotate when operated to adjust the angle between the jaw assembly and the sleeve assembly.
  • the steering drive assembly includes: an operating handle, a gear assembly and a push rod, the operating handle is connected to the gear assembly, the push rod is provided with connecting teeth, and the connecting teeth are engaged with the gear assembly; when the operating handle is rotated, the gear assembly is driven to rotate, and in response to the rotation of the operating handle, the gear assembly is configured to rotate and drive the push rod to move, and the push rod is configured to drive the angle steering member to rotate when moving.
  • the steering drive assembly also includes: a driving part, an elastic locking piece and a fixing part, the handle is connected to and drives the gear assembly through the driving part, the fixing part has a locking tooth, the driving part has a matching tooth, the driving part is connected to the elastic locking part, when the driving part is in the locking position, the elastic locking piece is in an initial state, the matching tooth is engaged with the locking tooth to prevent the driving part from rotating; when the driving part is in the unlocking position, the elastic locking piece is in a compressed state, the matching tooth is separated from the locking tooth, and the driving part can rotate to drive the push rod to move through the gear assembly.
  • the jaw assembly includes a nail magazine seat and a nail support seat rotatably connected to the nail magazine seat, and the surgical instrument also includes a motion conversion mechanism.
  • the outer sleeve is connected to the nail support seat through the motion conversion mechanism.
  • the motion conversion mechanism includes a first driving member and a first driving member provided on the outer sleeve, and a first driven part and a second driven part provided on the nail support seat.
  • the first driving member When the outer sleeve is in the proximal position, the first driving member is matched with the first driven part to make the jaw assembly in an open state; when the outer sleeve moves from the proximal position to the distal position, the first driving member is separated from the first driven part, and the first driving member cooperates with the second driven part to make the nail support seat pivot, thereby making the jaw assembly in a closed state.
  • the surgical instrument further includes a steering drive structure, which includes a handle assembly, a locking assembly, and a transmission assembly.
  • the handle assembly is connected to the angle steering member through the transmission assembly.
  • the transmission assembly is configured to drive the angle steering member to rotate.
  • the locking member is movable so as to drive the jaw assembly to rotate relative to the sleeve assembly;
  • the handle assembly has a locking position locked with the locking assembly and an unlocking position unlocked with the locking assembly;
  • the handle assembly includes a locking portion, and the locking assembly includes a locking groove, and when the handle assembly is in the unlocking position, the locking portion is separated from the locking groove; when the handle assembly is in the locking position, the locking portion is inserted into the locking groove;
  • the locking groove is provided with a guide wall, and when the handle assembly switches from the unlocking position to the locking position, the locking portion is inserted into the locking groove under the guidance of the guide wall.
  • the locking groove includes two guide walls, and the two guide walls are arranged in a V shape; the locking portion includes two matching walls, and when the locking portion is inserted into the locking groove, the two matching walls are respectively fitted with the two guide walls.
  • the locking assembly includes a fixing portion, the locking groove is opened in the fixing portion, there are a plurality of locking grooves, and the plurality of locking grooves are arranged around the rotation axis of the handle assembly.
  • the steering drive structure also includes multiple gear parts.
  • the handle assembly When the handle assembly is in the locked position, the handle assembly is connected to one of the gear parts; when the handle assembly is in the unlocked position, in response to the rotation of the handle assembly, the handle assembly is configured to move from a position connected to one of the gear parts to a position connected to another of the gear parts, and the locking part is configured to move from a position corresponding to one of the locking grooves to a position corresponding to another of the locking grooves.
  • the shift portion is a shift slot opened in the fixed portion
  • the transmission assembly includes a shift protrusion and a first elastic member
  • the shift protrusion cooperates with the shift slot to connect the handle assembly with the shift portion
  • the first elastic member is connected to the shift protrusion and applies a radial force along the fixed portion to the first elastic member
  • the shift protrusion is configured to disengage from one of the shift slots and enter an adjacent shift slot under the action of the first elastic member.
  • the shift position protrusion is a fixing bead
  • the shift position groove includes a guide wall, and the guide wall guides the fixing bead to enter and leave the shift position groove.
  • the shift portion and the locking groove are arranged opposite to each other in the radial direction of the fixing portion.
  • the transmission assembly includes a first transmission member, a second transmission member and a push rod assembly, the first transmission member is connected to the second transmission member, and the second transmission member is connected to the angle steering member through the push rod assembly;
  • the handle assembly is movably connected to the first transmission member, and when the handle assembly is operated, it moves relative to the first transmission member to switch from the locked position to the unlocked position.
  • the first transmission member is configured to drive the push rod assembly to move through the second transmission member, thereby driving the angle steering member to rotate.
  • the second transmission member includes a gear assembly
  • the first transmission member is meshed with the gear assembly
  • the gear assembly is meshed with the push rod assembly.
  • the first transmission member is configured to drive the gear assembly to rotate, thereby driving the push rod assembly to move toward the distal end or the proximal end.
  • the handle assembly is movably connected to the transmission assembly, and when the handle assembly is operated, it moves relative to the transmission assembly to switch from the locked position to the unlocked position or from the unlocked position to the locked position;
  • the locking assembly includes a second elastic member, one end of the second elastic member is connected to the transmission assembly, and the other end is connected to the handle assembly, the second elastic member is arranged along the moving direction of the handle assembly, when the handle assembly is in the unlocked position, the second elastic member is compressed, and when the handle assembly switches from the unlocked position to the locked position, the second elastic member is released, driving the handle assembly and the locking portion to move toward the locking groove.
  • the angle turning member is annular and has a turning hole, and a side of the angle turning member close to the turning hole is the inner side.
  • the beneficial effect of the present invention is that the matching part is arranged on the inner side of the angle steering member, so that the matching part is extended in the radial direction of the angle steering member, and the extension direction of the matching part is basically consistent with the matching direction of the locking member, so that the locking member and the matching part are locked stably, and then the jaw assembly is stably locked.
  • the outer sleeve moves toward the distal end to make the locking member move toward the proximal end to lock the jaw assembly, and the jaws cannot be rotated after closing, avoiding the problem of rotating the jaws and pulling tissues due to misoperation of medical staff after the jaws are closed.
  • the embodiment of the present disclosure also provides a surgical instrument, comprising: a jaw assembly, an angle steering member, a sleeve assembly, a motion conversion structure and a locking member, wherein the jaw assembly is rotatably connected to the sleeve assembly through the angle steering member;
  • the angle steering member comprises a wall portion and a matching portion, and the matching portion is arranged on the inner side of the wall portion;
  • the sleeve assembly comprises an outer sleeve, the outer sleeve is connected to the jaw assembly, and the outer sleeve is connected to the locking member through the motion conversion structure;
  • the locking member has a locked state and an unlocked state; in the locked state, the locking member is locked with the matching portion to prevent the jaw assembly from rotating relative to the sleeve assembly, and in the unlocked state, the locking member is unlocked with the matching portion, and the jaw assembly rotates relative to the sleeve assembly in response to being operated;
  • the outer sleeve is located at
  • the embodiment of the present disclosure also provides a surgical instrument, comprising a jaw assembly, an angle steering member, a sleeve assembly and a steering drive structure, wherein the jaw assembly is rotatably connected to the sleeve assembly through the angle steering member;
  • the steering drive structure comprises a handle assembly (operating handle), a locking assembly and a transmission assembly, wherein the handle assembly (operating handle) is connected to the angle steering member through the transmission assembly, and in response to the rotation of the handle assembly (operating handle), the transmission assembly drives the angle steering member to rotate, thereby driving the jaw assembly to rotate relative to the sleeve assembly;
  • the handle assembly (operating handle) has a locking position locked with the locking assembly and an unlocking position unlocked with the locking assembly;
  • the handle assembly (operating handle) comprises a locking portion, the locking assembly comprises a locking groove, and when the handle assembly (operating handle) is in the unlocking position, the locking portion is separated from the locking groove; when the handle assembly (operating handle) is in the locking
  • FIG1 is a schematic structural diagram of a surgical instrument provided by an embodiment of the present disclosure.
  • FIG2 is a schematic structural diagram of a jaw assembly and a locking member in a surgical instrument provided by an embodiment of the present disclosure
  • FIG3 is a schematic structural diagram of a jaw assembly and a steering structure in a surgical instrument provided by an embodiment of the present disclosure
  • FIG4 is a schematic structural diagram of an angle steering member in a surgical instrument provided by an embodiment of the present disclosure
  • FIG5 is a top view of an angle steering member in a surgical instrument provided by an embodiment of the present disclosure.
  • FIG6 is a schematic structural diagram of a locking member in a surgical instrument provided by an embodiment of the present disclosure when the locking member is in an unlocked state;
  • FIG7 is a schematic structural diagram of a locking member in a surgical instrument provided by an embodiment of the present disclosure when the locking member is in a locked state;
  • FIG8 is a schematic structural diagram of a jaw assembly, a sleeve assembly, and a lever assembly in a surgical instrument provided in an embodiment of the present disclosure
  • 9 to 13 are schematic structural diagrams of a motion conversion mechanism of an outer cannula driving jaws in a surgical instrument provided in an embodiment of the present disclosure
  • FIG14 is a schematic structural diagram of a lever assembly when an outer sleeve of a surgical instrument provided by an embodiment of the present disclosure is in a proximal position
  • FIG. 15 is an exploded schematic diagram of a lever assembly in a surgical instrument provided in an embodiment of the present disclosure.
  • FIG16 is a schematic structural diagram of the lever assembly rotating when the outer sleeve of the surgical instrument provided by one embodiment of the present disclosure is at the distal end position;
  • FIG. 17 is a cross-sectional view of a lever assembly in a surgical instrument provided in an embodiment of the present disclosure.
  • FIG18 is a schematic structural diagram of a sleeve assembly, a first driving member, and a second driving member in a surgical instrument provided in an embodiment of the present disclosure
  • FIG19 is a schematic diagram of the connection structure between the second end rod and the locking member of the lever assembly in the surgical instrument provided by one embodiment of the present disclosure
  • FIG20 is an exploded schematic diagram of a locking member, an ejector seat and an angle turning member in a surgical instrument provided in an embodiment of the present disclosure
  • FIG21 is a partial schematic diagram of point A in FIG2 ;
  • FIG22 is a schematic structural diagram of an ejector seat in a surgical instrument provided by an embodiment of the present disclosure
  • FIG23 is a schematic structural diagram of a connecting rod assembly in a surgical instrument provided by an embodiment of the present disclosure located in a first position;
  • FIG24 is a schematic structural diagram of a connecting rod assembly in a surgical instrument provided by an embodiment of the present disclosure being located in a second position;
  • FIG. 25 is an exploded view of a steering drive assembly in a surgical instrument provided by an embodiment of the present disclosure.
  • FIG26A is a schematic structural diagram of a driving portion, a terminal piece, and an elastic piece in a surgical instrument provided by an embodiment of the present disclosure
  • FIG. 26B is a diagram of a tip member, an elastic member and a drive member in a surgical instrument provided by an embodiment of the present disclosure. Exploded view of the moving parts;
  • FIG27 is a schematic diagram of the structure of a driving unit in a surgical instrument provided by an embodiment of the present disclosure.
  • FIG28 is a schematic structural diagram of a driving portion and a fixing portion of the present disclosure.
  • FIG29A is a cross-sectional view of a first transmission member in a surgical instrument provided in one embodiment of the present disclosure
  • FIG29B is a schematic structural diagram of a shift portion and a fixing bead in a surgical instrument provided by an embodiment of the present disclosure
  • FIG29C is a schematic diagram of the structure of point A in FIG29B;
  • FIG30 is a schematic structural diagram of an unlocking assembly in a surgical instrument provided by an embodiment of the present disclosure, wherein the connecting rod assembly is located in the second position;
  • FIG31 is a schematic structural diagram of an unlocking assembly in a surgical instrument provided by an embodiment of the present disclosure, wherein the connecting rod assembly is located in a first position;
  • FIG32 is a schematic structural diagram of an angle steering member (the mating portion is located proximal to the rotation axis of the angle steering member) and a locking member in a surgical instrument provided by another embodiment of the present disclosure;
  • FIG33 is a schematic structural diagram of a locking member in a surgical instrument provided by another embodiment of the present disclosure when the locking member is in a locked state;
  • FIG34 is a schematic structural diagram of a motion conversion structure in a surgical instrument provided by another embodiment of the present disclosure.
  • FIG35A is a side view of a motion conversion structure in a surgical instrument provided by another embodiment of the present disclosure.
  • FIG35B is a side view of a steering drive structure in a surgical instrument provided by another embodiment of the present disclosure.
  • FIG36 is a schematic structural diagram of an angle steering member (the mating portion is located proximal to the rotation axis of the angle steering member) in a surgical instrument provided by an embodiment of the present disclosure
  • FIG37 is a top view of the angle steering member shown in FIG26;
  • FIG38 is an exploded schematic diagram of a lever assembly in a surgical instrument provided by an embodiment of the present disclosure.
  • FIG39 is a schematic structural diagram of a lever assembly rotating when an outer sleeve of a surgical instrument provided by an embodiment of the present disclosure is at a distal position;
  • FIG40 is a cross-sectional view of a lever assembly in a surgical instrument provided in an embodiment of the present disclosure.
  • FIG41 is a schematic structural diagram of a sleeve assembly, a first driving member, and a second driving member in a surgical instrument provided by an embodiment of the present disclosure
  • FIG42 is a schematic diagram of a connection structure between a second end rod of a lever assembly and a locking member in a surgical instrument provided by an embodiment of the present disclosure
  • FIG. 43 is an exploded schematic diagram of a locking member, an ejector seat, and an angle turning member in a surgical instrument provided by an embodiment of the present disclosure.
  • FIG. 44 is a schematic structural diagram of a needle holder in a surgical instrument provided in an embodiment of the present disclosure.
  • proximal and distal are relative to the clinician who manipulates the handle of the stapler.
  • proximal refers to the part close to the clinician
  • distal refers to the part away from the clinician. That is, the handle is the proximal side
  • the jaw assembly is the distal side.
  • the proximal end of a component represents the end relatively close to the handle
  • the distal end represents the end relatively close to the jaw assembly.
  • upper and “lower” are based on the relative positions of the anvil and the staple magazine seat of the jaw assembly. For example, the anvil is “upper” and the staple magazine seat is “lower”.
  • the stapler can be used in many directions and positions, so these terms expressing relative positional relationships are not restrictive and absolute.
  • connection should be understood in a broad sense.
  • it can be a fixed connection, a detachable connection, a movably connection, or an integral body; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements such as abutment.
  • connection can be a fixed connection, a detachable connection, a movably connection, or an integral body; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements such as abutment.
  • the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.
  • qualifiers before “connected” and “connection” they have the meaning defined by the corresponding qualifiers, and only exclude situations that obviously need to be excluded, and do not exclude other possible situations.
  • detachably connected refers to a detachable connection, and does not include integration, but movable connection, etc. are not excluded.
  • locking teeth are provided on the outer circumference of the angle steering member, and the locking teeth are provided along the radial direction of the angle steering member.
  • the surgical instrument is also provided with a locking member.
  • the locking member corresponds to the locking teeth, and the jaw assembly is locked when the two cooperate.
  • the two side surfaces of the angle steering member are generally straight, and the outer circumference includes straight walls on both sides and an arc-shaped wall in the middle.
  • the locking teeth will inevitably be partially arranged on the straight walls, and the locking teeth located on the straight walls are not provided along the radial direction of the angle steering member.
  • An embodiment of the present disclosure provides a surgical instrument, specifically a stapler, as shown in FIG1 and FIG2 , the surgical instrument includes a jaw assembly 100, a sleeve assembly 400, a steering structure 200 and an operating assembly, wherein the sleeve assembly 400 is connected between the operating assembly and the jaw assembly 100, and the jaw assembly 100 is rotatably connected to the sleeve assembly 400 through the steering structure 200, so that the jaw assembly 100 can rotate relative to the sleeve assembly 400.
  • the medical staff controls the jaw assembly 100 to rotate a certain angle through the operating assembly, and after rotating to a suitable position, the jaw assembly 100 is closed by operating the operating assembly, so as to clamp and squeeze the human tissue, which is convenient for subsequent cutting.
  • the steering structure 200 includes an angle steering member 210, one end of which is rotatably connected to the sleeve assembly 400, and the other end of which is connected to the jaw assembly 100.
  • the angle steering member 210 has an outer peripheral surface 214, which is arranged on the outer periphery of the angle steering member 210 around the rotation axis of the angle steering member 210.
  • the outer peripheral surface 214 includes a middle arc surface 215, a first side surface 216 and a second side surface 217, and the first side surface 216 and the second side surface 217 are respectively located on both sides of the middle arc surface 215.
  • the angle steering member 210 also includes a matching portion 212 and a wall portion 211, the wall portion 211 has a certain thickness, the matching portion 212 is arranged on the inner side of the wall portion 211, the outer peripheral surface 214 is located on the outer side of the wall portion 211, and the wall portion 211 separates the matching portion 212 from the outer peripheral surface 214.
  • the rotation axis of a component means that the component can rotate around the rotation axis.
  • the dotted line in Figures 3, 4, and 6 is the rotation axis of the angle steering member 210.
  • Figure 4 shows the rotation axis of the angle steering member 210 with the reference numeral L1.
  • the angle turning member 210 (the wall portion 211 ) is annular and has an inner side and an outer side. The inner side and the outer side are relative to the wall portion 211 of the angle turning member 210 .
  • the jaw assembly 100 Before the jaw assembly 100 is closed to clamp tissue, the jaw assembly 100 may be moved relative to the cannula assembly. After the jaw assembly 100 is closed to clamp the tissue, the jaw assembly 100 needs to be locked to prevent the jaw assembly 100 from shaking and pulling the tissue during compression.
  • the surgical instrument includes a locking member 300, which has a locked state and an unlocked state.
  • the locking member 300 cooperates with the matching portion 212 to lock the angle turning member 210, thereby preventing the jaw assembly 100 from moving relative to the sleeve assembly 400;
  • the locking member 300 is in the unlocked state, the locking member 300 is separated from the matching portion 212, and the jaw assembly 100 rotates relative to the sleeve assembly 400 in response to the rotation of the angle turning member 210.
  • the matching portion 212 is arranged on the inner side of the angle steering member 210, and can better match with the locking member 300. If the matching portion 212 is arranged on the outer peripheral surface 214, the locking effect is poor when the jaw assembly 100 rotates at a large angle. The specific reasons are as follows: limited by the width of the sleeve assembly 400, the first side surface 216 and the second side surface 217 are generally flat and arranged along the axial direction of the sleeve assembly 400, so that the angle steering member 210 is narrow and long.
  • the matching portion 212 on the middle arc surface 215 extends along the radial direction of the angle steering member 210.
  • the matching portion 212 corresponds to the locking member 300, and the matching direction of the locking member 300 is basically consistent with the extension direction of the matching portion 212.
  • the locking member 300 and the matching portion 212 can be matched smoothly.
  • the locking member 300 moves toward the proximal end and switches to the locked state, it can be locked with the matching portion 212.
  • the jaw assembly 100 can rotate at a larger angle, the number of the matching portions 212 provided on the outer peripheral surface 214 is increased so that the matching portions 212 can correspond to the locking member 300 when the angle steering member 210 rotates at a larger angle, so that the matching portions 212 are provided on the first side surface 216 and the second side surface 217.
  • the matching portions 212 on the first side surface 216 generally extend in a direction perpendicular to the first side surface 216, rather than being provided in a radial direction of the angle steering member 210.
  • the second side surface 217 is generally parallel to the first side surface 216. Similar to the first side surface 216, the mating portion 212 and the locking member 300 thereon cannot stably cooperate, so that when the jaw assembly 100 rotates at a large angle, the locking member 300 cannot stably cooperate with the mating portion 212 and cannot effectively lock the jaw assembly 100.
  • the rotation axis of the angle steering member 210 is located on the inner side of the wall portion 211, so that the matching portion 212 is arranged on the inner side of the angle steering member 210, and the matching portion 212 is extended along the radial direction of the angle steering member 210.
  • the extension direction of the matching portion 212 is substantially consistent with the matching direction of the locking member 300, and both are sleeves.
  • the axial direction of the tube assembly 400 enables the locking member 300 and the mating portion 212 to be stably locked, thereby enabling the jaw assembly 100 to be stably locked.
  • each matching part 212 is extended along the radial direction of the angle steering member 210.
  • the locking member 300 When the locking member 300 is in the unlocking position, it corresponds to at least one of the matching parts 212.
  • the locking member 300 moves to the locking position, it cooperates with the corresponding matching part 212 to lock the angle steering member 210.
  • one of the matching portion 212 and the locking member 300 is provided with a locking tooth, and the other is provided with a matching groove, the locking tooth 2121 (as shown in FIG. 4 ) cooperates with the matching groove to lock the matching portion 212 and the locking member 300, and the locking tooth 2121 is separated from the matching groove to unlock the matching portion 212 and the locking member 300.
  • the locking tooth and the matching groove are plugged in and matched, which can effectively limit the rotation of the angle steering member 210.
  • the matching portion 212 includes a locking tooth 2121, for example, including a plurality of locking teeth 2121, each locking tooth 2121 is arranged to form an inner tooth structure, and each locking tooth 2121 points to the rotation axis of the angle steering member 210.
  • the locking member 300 is provided with a matching groove, and the cross-section of the matching groove is generally V-shaped, which matches the locking tooth 2121.
  • the mating portion 212 includes a first mating portion located at the head end and a second mating portion located at the tail end.
  • the angle between the jaw assembly 100 and the extension line of the sleeve assembly 400 is greater than or equal to 70°, for example, the angle may be greater than or equal to 70° and less than or equal to 75°;
  • the angle between the jaw assembly 100 and the extension line of the sleeve assembly 400 is greater than or equal to 70°, for example, the angle may be greater than or equal to 70° and less than or equal to 75°.
  • the jaw assembly 100 rotates to the left to the limit angle; when the second mating portion is mated with the locking member 300, the jaw assembly 100 rotates to the right to the limit angle.
  • the maximum angle of the jaw assembly 100 to rotate to one side is greater than or equal to 70°, which can better clamp the target tissue during surgery.
  • each matching part is arranged at the distal side of the rotation axis of the angle steering member, and the locking member switches from the unlocked state to the locked state by moving distally.
  • the sleeve assembly includes an inner sleeve 410 and an outer sleeve 420, the outer sleeve 420 is sleeved outside the inner sleeve 410 and can move relative to the inner sleeve 410, the outer sleeve 420 is connected to the locking member 300, the outer sleeve 420 has a proximal position and a distal position, and in response to the operation of the medical staff, the outer sleeve moves from the proximal position to the distal position.
  • the locking member 300 When the outer sleeve 420 is located at the proximal position, the locking member 300 is in an unlocked state; when the outer sleeve 420 moves from the proximal position to the distal position, and the outer sleeve 420 drives the locking member 300 to move toward the distal end, The locking member 300 is switched from the unlocked state to the locked state, and the locking member 300 locks the angle steering member 210 , so that the angle steering member 210 cannot rotate, thereby preventing the jaw assembly 100 from rotating relative to the sleeve assembly 400 .
  • the jaw assembly 100 has an open state and a closed state.
  • the jaw assembly When the outer sleeve moves toward the distal end, the jaw assembly is pushed to switch from the open state to the closed state.
  • the outer sleeve 420 When the outer sleeve 420 is located at the proximal position, the jaw assembly 100 is in the open state, the locking member 300 is in the unlocked state, and in response to the rotation of the angle steering member 210, the jaw assembly 100 rotates relative to the sleeve assembly 400; when the outer sleeve 420 moves from the proximal position to the distal position, the jaw assembly 100 switches to the closed state, and the outer sleeve 420 drives the locking member 300 to move toward the distal end, so that the locking member 300 switches from the unlocked state to the locked state, and the locking member 300 locks the angle steering member, so that the angle steering member 210 cannot rotate, thereby preventing the jaw assembly 100 from rotating relative to the sleeve assembly 400.
  • the outer sleeve 420 is switched from the proximal position to the distal position, so that the jaw assembly 100 is switched from the open state to the closed state in the following manner.
  • the jaw assembly 100 includes a cartridge seat 110, an anvil seat 120 rotatably connected to the cartridge seat 110, and a motion conversion mechanism is provided between the outer sleeve 420 and the anvil seat 120 of the jaw assembly 100.
  • the motion conversion mechanism converts the linear motion of the outer sleeve 420 into the pivoting motion of the anvil seat 120, thereby realizing the pivoting of the anvil seat 120 relative to the cartridge seat 110 to close or open the jaw assembly 100.
  • the motion conversion mechanism drives the anvil seat 120 to pivot upward to open the jaw assembly 100
  • the motion conversion mechanism drives the anvil seat 120 to pivot downward to close the jaw assembly 100
  • the outer sleeve 420 includes a body 425 and a drive tube 426 connected thereto, and the drive tube 426 drives the anvil 120 to pivot upward or downward to open or close the jaw assembly 100.
  • the body 425 and the drive tube 426 are connected by a hinge.
  • the motion changing mechanism includes a first driving member 4261 and a first driving member 4262 provided on the driving tube 426 , and a first driven portion 121 and a second driven portion 122 provided on the anvil seat 120 .
  • the first driving member 4261 drives the anvil 120 to open.
  • the first driving member 4261 is a protrusion disposed on the driving tube 426, and the protrusion extends along the lower right side.
  • the first driving member 4262 drives the anvil 120 to close.
  • the first driving member 4262 is a driving surface at the far end of the driving tube 426.
  • the first driven part 121 can be matched with the first driving member 4261, and the first driven part 121 is a convex part arranged on the anvil seat 120, and the convex part extends upward.
  • the second driven part 122 can be matched with the first driving member 4262, and the second driven part 122 is the abutting surface of the proximal end of the anvil seat 120.
  • a guiding mechanism is also arranged between the anvil seat 120 and the nail magazine seat 110, and the guiding mechanism includes a pin 123 arranged on the anvil seat 120, and an oblique waist-shaped groove 111 arranged on the nail magazine seat 110, and the oblique waist-shaped groove 111 extends upwardly in a direction from the proximal end to the distal end.
  • the surgical instrument includes a frame 600, and a transmission structure is disposed on the frame 600.
  • the outer sleeve 420 is connected to the locking member 300 through the transmission structure.
  • the transmission structure includes a lever member 511, a rotating portion 512, a first connecting portion 513, and a second connecting portion 514.
  • the lever member 511 is connected to the rotating portion 512, and is rotatably connected to the frame through the rotating portion 512.
  • the first connecting portion 513 and the second connecting portion 514 are both located on the same side of the rotating portion 512.
  • the first connecting portion 513 is connected to the outer sleeve 420, and the second connecting portion 514 is connected to the locking member 300.
  • the outer sleeve 420 moves along a first direction to drive the first connecting portion 513 to move, thereby driving the lever member 511 to rotate.
  • the locking member 300 is driven to move along the first direction through the movement of the second connecting portion 514.
  • the movement direction of the first connecting portion 513 is the same as the movement direction of the second connecting portion 514, so that the movement direction of the outer sleeve 420 is the same as that of the locking member 300.
  • the first connection part 513 rotates clockwise
  • the second connection part 514 rotates clockwise, driving the locking member 300 to move toward the distal end.
  • the first connection part 513 rotates counterclockwise
  • the second connection part 514 rotates counterclockwise, driving the locking member 300 to move toward the proximal end.
  • the distance between the second connection part 514 and the rotating part 512 is smaller than the distance between the first connection part 513 and the rotating part 512.
  • the distance between the first connection part 513 and the rotating part 512 is the power arm
  • the distance between the second connection part 514 and the rotating part 512 is the resistance arm.
  • two lever members 511 are formed, and the rotation shafts 512 of the two lever members 511 are coaxially arranged.
  • the first connection parts 513 of the two lever members 511 are connected by the first end rod 5131, and the second connection parts 514 of the two lever members 511 are connected by the second end rod 5141, so that the two lever members 511 move synchronously.
  • the two lever members 511 are connected by the first end rod 5131 and the second end rod 5141 to form a frame. When the lever members 511 rotate, the two lever members 511 rotate synchronously, thereby improving the stability of the rotation of the lever members 511.
  • the first end rod 5131 is connected to the outer sleeve 420, so that the first connection parts 513 of the two lever members 511 are connected to the outer sleeve 420; the second end rod 5141 is connected to the locking member 300, so that the second connection parts 514 of the two lever members 511 are connected to the locking member 300.
  • the lever member 511 may be provided with only one, the first connection portion 513 of the lever member 511 is provided with a connection structure connected to the outer sleeve 420, which may be a rod body or a hole, and the second connection portion 514 of the lever member 511 is provided with a connection structure connected to the locking member 300, which may be a rod body or a hole, etc.
  • the embodiments of the present disclosure do not make specific limitations on this.
  • the outer sleeve 420 moves along the axis direction of the sleeve assembly 400, and the motion path is a straight line.
  • the lever member 511 rotates
  • its first connection part 513 rotates around the rotating part 512
  • the motion path is an arc.
  • the outer sleeve 420 that moves in a straight line is connected to the first connection part 513 that moves along the arc. Since the motion path of the outer sleeve 420 is different from the motion path of the first connection part 513 of the lever member 511, the first connection part 513 is prone to get stuck during the movement.
  • the outer sleeve 420 is movably connected to the first connection part 513 through a guide structure.
  • the first connection part 513 is driven to rotate around the rotating part 512 of the lever member 511 through the guide structure.
  • the first direction is the axis direction of the sleeve assembly 400.
  • the axial direction of the sleeve assembly 400 is the X direction, and the Y direction is perpendicular to the X direction.
  • the outer sleeve 420 can only move along the X direction, pushing the lever member 511 to rotate, so that the first connection part 513 rotates.
  • the rotation of the first connection part 513 produces displacement in both the X direction and the Y direction.
  • the first connection part 513 moves with the outer sleeve 420.
  • the first connection part 513 moves relative to the outer sleeve 420 through the guide structure and is always connected to the outer sleeve 420, so that the first connection part 513 is kept It can rotate smoothly while being connected to the outer sleeve 420, avoiding the occurrence of rotation jamming.
  • the second connection part 514 connects and drives the locking member 300 to move only in the X direction.
  • the second connection part 514 is movably connected to the locking member 300 through a guide structure.
  • the second connection part 514 rotates around the rotating part 512, it is displaced in both the X direction and the Y direction.
  • the locking member 300 moves with the second connection part 514; in the Y direction, the locking member 300 moves relative to the second connection part 514 through the guide structure, so that the second connection part 514 is always connected to the locking member 300.
  • the second connection part 514 drives the locking member 300 to move only in the X direction through the guide structure.
  • the guiding structure includes a moving rod and a moving groove 423.
  • One of the outer sleeve 420 and the first connecting part 513 is provided with a moving rod, and the other one has a moving groove 423.
  • the moving rod is located in the first moving groove 423.
  • the first connecting part 513 is driven to move along the first direction (X direction) through the guiding structure.
  • the moving rod slides along the length direction of the moving groove 423 (i.e., Y direction) to make the first connecting part 513 move relative to the outer sleeve 420, thereby allowing the first connecting part 513 to be displaced in the Y direction.
  • the moving rod is connected to the first connecting portion 513, specifically the first end rod 5131, and the outer sleeve 420 is provided with a first driving member 421 and a first driving member 422.
  • the first driving member 421 and the first driving member 422 are arranged on the lower side of the outer sleeve 420 and extend approximately along the Y direction.
  • a moving groove 423 is formed between the first driving member 421 and the first driving member 422, and the moving groove 423 extends approximately along the Y direction.
  • the first end rod 5131 is located in the moving groove 423 and can move in the moving groove 423 along the length direction of the moving groove 423 (approximately the Y direction).
  • the moving rod is the second end rod 5141, and the second end rod 5141 is connected to the locking member 300.
  • a U-shaped slot is provided at the proximal end of the locking member 300, and the locking member 300 is engaged with the second end rod 5141 through the U-shaped slot, so that the second end rod 5141 is engaged in the U-shaped slot, and can drive the locking member 300 to move toward the proximal end or the distal end.
  • the inner sleeve 410 is provided with a sliding slot 412, and the second end rod 5141 is disposed in the sliding slot 412, and the second end rod 5141 can only move along the X direction in the sliding slot 412.
  • the movable groove is provided on the lever member 511, for example, a waist-shaped groove 5142, and the two ends of the second end rod 5141 are respectively placed in the waist-shaped grooves 5142 of the two lever members 511, and the waist-shaped grooves 5142 extend approximately along the Y direction; when the lever member 511 rotates, the two ends of the second end rod 5141 are respectively located in the waist-shaped grooves 5142 of the two lever members 511 and extend along the waist-shaped grooves
  • the second connecting portion 5142 slides in the length direction (displaces in the Y direction), so that the second connecting portion 514 can only drive the locking member 300 to move in the X direction.
  • the lever member 511 is disposed on one side of the sleeve assembly 400, and one end of the second end rod 5141 is fixedly connected to the locking member 300, and the other end is located in the moving groove 423.
  • the sleeve assembly 400 is provided with an ejector seat 411, the ejector seat 411 is fixedly arranged on the inner sleeve 410, and the ejector seat 411 is rotatably connected to the angle steering member 210.
  • the angle steering member 210 is provided with a steering hole 213, and the ejector seat 411 is provided with a fixed shaft 4115, and the angle steering member 210 realizes the fixed connection between the angle steering member 210 and the ejector seat 411 through the coordination of the steering hole 213 and the fixed shaft 4115.
  • the angle steering member 210 is provided with a groove 2111, and the groove 2111 is the matching portion 212, and the groove 2111 is located on the inner side of the wall portion 211, and the steering hole 213 is connected to the groove 2111.
  • the locking member 300 includes a pull rod 310 and a locking portion 320.
  • the pull rod 310 is connected to the lever member 511 at the proximal end and the locking portion 320 at the distal end.
  • the locking portion 320 includes a locking head 330 and a body 340, and the body 340 is connected to the locking head 330. In the unlocked state, the locking head 330 is separated from the matching portion 212.
  • the medical staff operates the handle 800 (as shown in Fig. 23) to move the outer sleeve 420 to the distal end, thereby closing the jaw assembly 100.
  • the locking member 300 moves to the distal end, and the locking member 300 switches from the unlocked state to the locked state.
  • the locking head 330 moves to the distal end in the turning hole 213, moves to the groove 2111, and engages with the groove 2111 (i.e., the matching portion 212), locks the angle turning member 210, and then realizes the rotation locking of the jaw assembly 100.
  • the ejector seat 411 may also adopt the structure shown in FIG. 44 .
  • the side of the angle turning member 210 close to the turning hole 213 is the inner side, and the side away from the turning hole 213 is the outer side.
  • the turning hole 213 is the inner hole of the angle turning member 210 in a ring shape.
  • the ejector seat 411 is provided with a first receiving groove 4111 (as shown in FIG. 20 ) and a second receiving groove 4112 (as shown in FIG. 21 ).
  • the first receiving groove 4111 is communicated with the second receiving groove 4112.
  • the pull rod 310 is partially located in the first receiving groove 4111 and can move in the first receiving groove 4111.
  • the main body 340 is located in the second receiving groove 4112 and can move proximally or distally in the second receiving groove 4112.
  • the second receiving groove 4112 has a limiting area 4114 (as shown in FIG. 21 ).
  • the main body 340 has a protruding portion 321 received in the limiting area 4114.
  • the protruding portion 321 abuts against the distal wall 41141 of the limiting region 4114, and when the locking member 300 is in the unlocked state, the protruding portion 321 abuts against the proximal wall 41142 of the limiting region 4114.
  • the locking member 300 can only move between the locking position and the unlocking position.
  • the pull rod 310 fits with the inner walls on both sides of the first receiving groove 4111
  • the locking portion 320 fits with the inner walls on both sides of the second receiving groove 4112, preventing the locking member 300 from shaking left and right.
  • the ejector seat 411 is also provided with a third receiving groove 4113, which is connected to the second receiving groove 4112 and penetrates the fixed shaft 4115.
  • the third receiving groove 4113 accommodates the locking head 330.
  • the third receiving groove 4113 corresponds to the groove 2111, so that the locking head 330 can slide out of the third receiving groove 4113 and cooperate with the groove 2111.
  • the mating portion 212 is disposed on the upper surface of the angle steering member 210 and is disposed along the thickness direction of the angle steering member 210.
  • a plurality of mating portions 212 are arranged around the rotation axis of the angle steering member 210 and face the rotation axis of the angle steering member 210.
  • the locking head 330 When in the locked position, the locking head 330 is mated with at least one mating portion 212; when in the unlocked position, the locking head 330 is located above the upper surface of the angle steering member 210.
  • the surgical instrument provided by the embodiment of the present disclosure controls the outer sleeve 420 to move distally to close the jaw assembly 100 after the jaw assembly 100 is controlled to turn.
  • the outer sleeve 420 moves distally to drive the locking member 300 to switch from the unlocked position to the locked position to lock the jaw assembly 100, thereby preventing the jaw assembly 100 from rotating relative to the sleeve assembly 400 after the jaw assembly 100 is closed.
  • the surgical instrument has a handle 800, and the medical staff can control the outer sleeve 420 to move toward the distal end by actuating the handle 800. Controlling the movement of the outer sleeve 420 by actuating the handle 800 is achieved through the following structure.
  • the surgical instrument includes a link assembly 610 disposed on a frame 600, the link assembly 610 includes a first link 611 and a second link 612, the distal end of the first link 611 is connected to the proximal end of the outer sleeve 420, the distal end of the outer sleeve 420 is connected to the jaw assembly 100, the proximal end of the second link 612 is rotatably connected to the frame 600, and the distal end is rotatably connected to the proximal end of the first link 611.
  • the handle 800 can engage with the link assembly 610 and drive the link assembly 610 to move when actuated.
  • the connecting rod assembly 610 has a first position and a second position.
  • the connecting rod assembly 610 When the connecting rod assembly 610 is in the first position, the first connecting rod 611 and the second connecting rod 612 form an angle with each other, and the outer sleeve 420 is in the proximal position.
  • the connecting rod assembly 610 When the connecting rod assembly 610 is in the second position, the first connecting rod 611 and the second connecting rod 612 are colinear or substantially colinear, so that the connecting rod assembly 610 self-locks in the second position, and the outer sleeve 420 is in the distal position. Under the self-locking effect of the connecting rod assembly 610, the outer sleeve 420 remains in the distal position.
  • Collinearity means that the first link 611 and the second link 612 are located on the same straight line, and the angle between them is 180°.
  • Substantially collinearity means that the first link 611 and the second link 612 pass the dead point position, and the angle between the first link 611 and the second link 612 is greater than 0° and less than 5°.
  • the handle 800 is provided with a supporting portion, which is located at the lower side of the connecting rod assembly 610.
  • the handle 800 supports the first connecting rod 611 or the second connecting rod 612 through the supporting portion to be operably engaged with the connecting rod assembly 610.
  • the connecting rod assembly 610 is in the second position and locked in the second position, the supporting portion is separated from the connecting rod assembly 610 when the handle 800 is reset and rebounded.
  • the handle 800 switches from the initial position to the pressing position, and the supporting portion moves with the movement of the handle 800.
  • the supporting portion 100 contacts the connecting rod assembly 610 in the second position only when the handle 800 reaches the pressing position (the end point of the movement trajectory of the supporting portion), that is, the supporting portion does not contact the connecting rod assembly 610 during the movement, so the handle 800 cannot drive the connecting rod assembly 610 during subsequent actuation.
  • the supporting portion is a rod body, and the handle 800 is operably engaged with the connecting rod assembly 610 by abutting the second connecting rod 213 through the supporting portion. During the rotation of the second connecting rod 213, the supporting portion can always abut the second connecting rod 213.
  • the hinge point gradually moves to the upper side (the side away from the gripping part of the handle 800). Since the proximal end of the second connecting rod 612 is connected to the frame 600, the hinge point at the distal end of the second connecting rod 612 moves distally. At the same time, the rotation of the first connecting rod 611 causes the distal end of the first connecting rod 611 to move toward the distal end of the surgical instrument. As can be seen from the above, the distal end of the first connecting rod 611 is connected to the proximal end of the outer sleeve 420, and the distal end of the outer sleeve 420 is connected to the jaw assembly 100. Therefore, the connecting rod assembly 610 can drive the outer sleeve 420 to move distally to close the jaw assembly 100.
  • the link assembly 610 self-locks in the second position, locking the outer sleeve 420 in the distal position, thereby keeping the locking member 300 in the locked position, thereby maintaining the locking of the jaw assembly 100 .
  • the surgical instrument further includes a steering drive assembly 700, which is disposed on the frame 600 and is used to control the rotation of the jaw assembly 100.
  • the component 700 includes an operating handle 710, a driving part 720, a first transmission member 760, a fixing part 730, a second transmission member and a push rod assembly 750.
  • the first transmission member 760 is connected to the second transmission member
  • the second transmission member is connected to the angle steering member 210 through the push rod assembly 750.
  • the operating handle 710 is used to be operated and rotated by medical staff.
  • the operating handle 710 is connected to the driving part 720.
  • the operating handle 710 and the driving part 720 can be integrally arranged, but not limited thereto.
  • the operating handle 710 and the driving part 720 can rotate synchronously.
  • the driving part 720 is connected to the first transmission member 760 to drive the first transmission member 760 to rotate.
  • the first transmission member 760 is connected to the push rod assembly 750 through the second transmission member.
  • the first transmission member 760 drives the push rod assembly 750 to move through the second transmission member, thereby driving the angle steering member 210 to rotate.
  • the fixing part 730 is disposed on the frame 600, the first transmission member 760 is rotatably disposed in the fixing part 730, a sliding space 763 is provided in the first transmission member 760, and the driving part 720 is located in the sliding space 763.
  • the push rod assembly 750 includes a left push rod 751 and a right push rod 752, the second transmission member includes a gear assembly 740, the gear assembly 740 includes a left gear part 741 and a right gear part 742, the left gear part 741 and the right gear part 742 are connected to the frame 600, and are respectively disposed on both sides of the first transmission member 760.
  • the left gear part 741 and the right gear part 742 each include two coaxially arranged gears, the left push rod 751 meshes with the lower gear of the left gear part 741, the right push rod 752 meshes with the lower gear of the right gear part 742, and the first transmission member 760 is provided with a tooth structure at the lower side, which meshes with the upper gear of the left gear part 741 and the upper gear of the right gear part 742.
  • the rotation directions of the left gear part 741 and the right gear part 742 are opposite, so that the movement directions of the left push rod 751 and the right push rod 752 are opposite.
  • the left push rod 751 and the right push rod 752 both extend along the length direction of the sleeve assembly 400, and the distal ends of the left push rod 751 and the right push rod 752 are close to the angle steering member 210.
  • the driving unit 720 rotates to drive the left push rod 751 and the right push rod 752 to move, the angle steering member 210 is pushed to rotate, thereby rotating the jaw assembly 100.
  • the angle steering member 210 when the medical staff rotates the operating handle 710 in a counterclockwise direction, the left push rod 751 moves toward the proximal end, the right push rod 752 moves toward the distal end, and the right push rod 752 pushes the angle steering member 210 to rotate to the left.
  • the medical staff rotates the operating handle 710 in a clockwise direction the left push rod 751 moves toward the distal end, the right push rod 752 moves toward the proximal end, and the left push rod 751 pushes the angle steering member 210 to rotate to the right.
  • the angle steering member 210 includes a left side abutting portion 218 and a right side abutting portion 219.
  • the left push rod 751 abuts against the left side abutting portion 218, and the right push rod 752 abuts against the right side abutting portion 219.
  • the operating handle 710 rotates to drive the left push rod 751 and the right push rod 752 to move, such as when the operating handle 710 is rotated clockwise, the left push rod 751 moves toward the distal end, and the right push rod 752 moves toward the proximal end.
  • the left push rod 751 pushes the left side abutting portion 218 of the angle steering member 210 to move toward the distal end.
  • the angle steering member 210 rotates to the right, and the right abutting portion 219 is driven to move toward the proximal end, always abutting against the right push rod 752.
  • the operating handle 710 is rotated counterclockwise to move the left push rod 751 toward the proximal end, and the right push rod 752 moves toward the distal end.
  • the angle steering member 210 rotates to the left, so that the push rod assembly 750 can drive the angle steering member 210 to rotate, thereby driving the jaw assembly 100 to rotate.
  • the left push rod 751 and the right push rod 752 may also be referred to as the first push rod and the second push rod, respectively
  • the left gear portion 741 and the right gear portion 742 may also be referred to as the first gear portion and the second gear portion, respectively
  • the left supporting portion 218 and the right supporting portion 219 may also be referred to as the first supporting portion and the second supporting portion, respectively.
  • the steering drive assembly 700 can lock the push rod assembly 750
  • the operating handle 710 includes a locking portion 7200 (as shown in FIG. 26A )
  • the fixing portion 730 includes a locking groove 731.
  • the locking portion 7200 is separated from the locking groove 731, and when the operating handle 710 is in the locked position, the locking portion 7200 is plugged into the locking groove 731.
  • the locking groove 731 has a guide wall 7311.
  • the locking portion 7200 moves toward the locking groove 731 and is plugged into the locking groove 731 under the guidance of the guide wall 7311.
  • the setting of the guide wall 7311 allows the locking portion 7200 to be plugged into the locking groove 731 when the locking portion 7200 is not aligned with the locking groove 731, so that the operating handle 710 can be smoothly returned to its original position.
  • the first transmission member 760 includes a transmission member body and an end member 761.
  • the end member 761 is located in the sliding space and is fixedly connected to the transmission member body. As shown in FIG. 26A and FIG. 29A, the end member 761 is fixed to the transmission member body by a screw 765. For example, the end member 761 is located at the far end of the sliding space. Both sides of the width direction of the end member 761 are provided with a slide groove 7612. The length direction of the slide groove 7612 is the same as the length direction of the sliding space.
  • the driving part 720 includes two sliders 722.
  • the two sliders 722 are respectively inserted into the two slide grooves 7612 on both sides of the end member 761, so that the driving part 720 is slidably connected to the end member 761.
  • the operating handle 710 is slidably connected to the first transmission member 760.
  • the end piece 761 is provided with a receiving groove 7611, which is a circular groove.
  • the elastic piece 762 is connected to the end piece 761 and is partially received in the receiving groove 7611.
  • the receiving groove 7611 limits the axial position of the elastic piece 762 to prevent the elastic piece 762 from being deflected or bent, and always provides elastic force along the length direction of the sliding space.
  • the elastic member 762 is in the initial state so that the driving part 720 is in the locked position, the matching teeth 721 are meshed with the locking teeth 731, and the driving part 720 is locked and cannot rotate.
  • the driving part 720 is meshed with the gear assembly 740, the gear assembly 740 and the push rod assembly are meshed.
  • Component 750 is engaged, and driving portion 720 is locked, so that both gear assembly 740 and push rod assembly 750 are locked, thereby locking jaw assembly 100 to prevent it from rotating.
  • the jaw assembly 100 After the jaw assembly 100 rotates to a suitable position, release the operating handle 710, the elastic member 762 is released and rebounds to the initial state, pushing the driving part 720 to slide, and the matching teeth 721 and the locking teeth 731 are meshed again, so that the driving part 720 is locked to the fixed part 730 again, thereby locking the jaw assembly 100. That is, after the control of the turning of the jaw assembly 100 is completed, the jaw assembly 100 can be locked by releasing the operating handle 710.
  • the locking tooth 731 is arranged at the proximal end of the fixing portion 730, and the mating tooth 721 is arranged at the proximal end of the driving portion 720.
  • the medical staff can push the operating handle 710 forward to make the driving portion 720 move distally to switch from the locked position to the unlocked position. In the unlocked position, the operating handle 710 is rotated to control the direction of the jaw assembly 100.
  • the medical staff When performing surgery, the medical staff extends the jaw assembly 100 and part of the sleeve assembly 400 of the surgical instrument into the human body, and the jaw assembly 100 is in the straight hitting position, and the length direction of the jaw assembly 100 is colinear with the axis of the sleeve assembly 400, so that the jaw assembly 100 can be easily inserted into the human body; the steering drive assembly 700 is unlocked by pushing the operating handle 710 forward, and the operating handle 710 is rotated to turn the jaw assembly 100. After the jaw assembly 100 is rotated to a suitable angle, the medical staff releases the operating handle 710, and the operating handle 710 is retracted, and the driving part 720 moves to the locking position to preliminarily lock the jaw assembly 100.
  • the medical staff actuates the handle 800 to close the jaw assembly 100, clamp and squeeze the patient's tissue, and at the same time, the locking member 300 moves to the locking position to further lock the jaw assembly 100.
  • the medical staff controls the cutting knife assembly to advance the knife to fire.
  • the cutting knife assembly moves distally to cut the patient's tissue; during the firing process, the jaw assembly 100 is locked and will not rotate, ensuring stable cutting.
  • the cutting knife assembly retracts toward the proximal end.
  • the medical staff opens the jaw assembly 100, and the outer sleeve 420 moves from the distal position to the proximal position. This process causes the locking member 300 to move to the unlocked state, and then the steering drive assembly 700 controls the jaw assembly 100 to rotate back to the straight hitting position, and finally the jaw assembly 100 is removed from the human body.
  • the surgical instrument further includes a motor assembly and a main control module, the main control module is electrically connected to the motor assembly, the motor assembly is connected to the cutting knife assembly, and the main control module controls the position of the handle 800 and the cutting knife assembly according to the position of the handle 800 and the cutting knife assembly.
  • the position of the component controls the operation of the motor component to realize the advance and retract of the cutting knife component.
  • the specific implementation of the advance and retract can refer to the existing technology and will not be repeated here.
  • the surgical instrument also includes an unlocking assembly, as shown in Figures 30 and 31, the unlocking assembly includes a release button 910 arranged outside the shell of the operating assembly, and an unlocking rod 920 located in the shell of the operating assembly and abutting against the connecting rod assembly 610 located in the second position, the unlocking rod 920 is linked with the release button 910, and the release button 910 has a driving rod 911.
  • the unlocking assembly includes a release button 910 arranged outside the shell of the operating assembly, and an unlocking rod 920 located in the shell of the operating assembly and abutting against the connecting rod assembly 610 located in the second position, the unlocking rod 920 is linked with the release button 910, and the release button 910 has a driving rod 911.
  • the release button 910 When the medical staff operates the release button 910, specifically when pushing the release button 910, the release button 910 and the driving rod 911 rotate synchronously, and the rotating driving rod 911 acts on the release rod 920 to rotate the unlocking rod 920, and the unlocking rod 920 abuts against one end of the connecting rod assembly 610 and moves downward to push the connecting rod assembly 610, so that the connecting rod assembly 610 returns to the first position, and the jaw assembly 100 opens to release the human tissue.
  • the unlocking lever 920 When the release button 910 is not operated, the unlocking lever 920 is located above the connecting rod assembly 610, and the connecting rod assembly 610 is self-locked in the second position; when the medical staff operates the release button 910, the unlocking lever 920 is rotated, and one end of the unlocking lever 920 moves downward to push the connecting rod assembly 610, so that the connecting rod assembly 610 is no longer in the second position, so as to release the self-locking state of the connecting rod assembly 610.
  • the outer sleeve 420 is sleeved with a spring 430, one end of the spring 430 is connected to the frame 210, and the other end is connected to the push block 440, and the push block 440 is connected to the first connecting rod 611.
  • the spring 430 When the connecting rod assembly 610 is in the second position, the spring 430 is in a compressed state, and the outer sleeve 420 is in a distal position; when the connecting rod assembly 610 is in the first position, the spring 430 is in a released state.
  • the medical staff operates the release button 910 so that the connecting rod assembly 610 is no longer in the second position, the spring 430 is released, pushing the push block 440 to move proximally, and the connecting rod assembly 610 moves to the first position, so that the jaw assembly 100 is opened, and the outer sleeve 420 moves to the proximal position, thereby driving the locking member 300 to move to the unlocked state.
  • the medical staff After the knife is retracted, the medical staff operates the release button 910 to open the jaw assembly 100, and then operates the steering knob 710 to rotate the jaw assembly 100 to the straight hitting position, and finally removes the jaw assembly 100 from the human body.
  • an embodiment of the present disclosure provides a surgical instrument, specifically a stapler, as shown in Figures 1 and 2, the surgical instrument includes a jaw assembly 100, a sleeve assembly 400, a steering structure 200 and an operating assembly 810, the sleeve assembly 400 is connected between the operating assembly 810 and the jaw assembly 100, and the jaw assembly 100 is rotatably connected to the sleeve assembly 400 through the steering structure 200, so that the jaw assembly 100 can rotate relative to the sleeve assembly 400.
  • the medical staff controls the jaw assembly 100 to rotate a certain angle through the operating assembly 810, and after rotating to a suitable position, the jaw assembly 100 is closed by operating the operating assembly 810, so as to clamp and squeeze the human tissue to facilitate subsequent cutting.
  • the surgical instrument further comprises a steering drive structure 700, which is connected to the steering structure 200.
  • the medical staff can apply a force to the angle steering member 210 by operating the steering drive structure 700 to rotate the angle steering member 210.
  • the steering drive structure 700 is located at the proximal end of the sleeve assembly 400.
  • the steering drive structure 700 comprises a handle assembly 777, a locking assembly and a transmission assembly.
  • the handle assembly 777 is connected to the angle steering member 210 through the transmission assembly.
  • the handle assembly 777 has a locking position and an unlocking position.
  • the handle assembly 777 In the locking position, the handle assembly 777 is locked by the locking assembly, and the medical staff cannot rotate the handle assembly 777; in the unlocking position, the handle assembly 777 is unlocked from the locking assembly, and the medical staff can rotate the handle assembly 777.
  • the transmission assembly drives the angle steering member 210 to move, thereby driving the jaw assembly 100 to rotate.
  • the handle assembly 777 has a locking position locked with the locking assembly and an unlocking position unlocked with the locking assembly.
  • the first transmission member 760 is generally cylindrical, with a sliding space 763 formed thereon, and a tooth structure cooperating with the gear assembly 740 formed at the bottom thereof.
  • the sliding space 763 is formed at the top of the first transmission member 760, and the handle assembly 777 includes an operating handle 710 and a driving portion 720, and a locking portion 7200 is provided at the driving portion 720.
  • the operating handle 710 and the driving portion 720 are plug-connected or integrally formed, and when the operating handle 710 rotates, the driving portion 720 is driven to rotate synchronously, and the lower portion of the driving portion 720 is located in the sliding space 763.
  • the sliding space 763 is provided along the axial direction of the sleeve assembly 400, so that the handle assembly 777 can slide along the axial direction of the sleeve assembly 400 relative to the first transmission member 760, and the straight hitting position refers to that the length direction of the jaw assembly 100 is substantially consistent with the axial direction of the sleeve assembly 400.
  • the handle assembly 777 is movably connected to the first transmission member 760, and when the handle assembly 777 is operated, it moves relative to the first transmission member 760 to switch from a locked position to an unlocked position or from an unlocked position to a locked position; when the handle assembly 777 is in the unlocked position, in response to the rotation of the handle assembly 777, the first transmission member 760 is configured to drive the push rod assembly 750 to move through the second transmission member, thereby driving the angle steering member 210 to rotate.
  • the transmission assembly includes a first transmission member 760 , a second transmission member and a push rod assembly 750 , for example, the second transmission member includes a gear assembly 740 .
  • the first transmission member 760 is meshed with the gear assembly 740 .
  • the handle assembly 777 is movably connected to the transmission assembly, and when the handle assembly 777 is operated, it moves relative to the transmission assembly to switch from a locked position to an unlocked position or from an unlocked position to a locked position.
  • the surgical instrument further comprises a jaw locking structure, which comprises a locking member 300.
  • a jaw locking structure which comprises a locking member 300.
  • an outer sleeve 420 is connected to the locking member 300.
  • the locking member 300 has a locked state and an unlocked state. In the locked state, the locking member 300 is locked with the steering structure 200 to prevent the jaw assembly 100 from rotating relative to the sleeve assembly 400. In the unlocked state, the locking member 300 is unlocked with the steering structure 200, and the jaw assembly 100 rotates relative to the sleeve assembly 400 in response to the rotation of the handle assembly 777.
  • the outer sleeve 420 can move along the axis direction of the sleeve assembly 400.
  • the jaw assembly 100 When the outer sleeve 420 is located at the proximal position, the jaw assembly 100 is in an open state and the locking member 300 is in an unlocked state. When the outer sleeve 420 moves from the proximal position to the distal position, the jaw assembly 100 is driven to switch from the open state to the closed state, and the locking member 300 is driven to move so that the locking member 300 switches to the locked state.
  • the jaw assembly 100 When the medical staff operates the steering drive structure 700 to rotate the jaw assembly 100, the jaw assembly 100 is in an open state.
  • the operating assembly 810 includes a handle 800.
  • the medical staff actuates the handle 800 to move the outer sleeve 420 from the proximal position to the distal position.
  • the outer sleeve 420 is connected to the jaw assembly 100, and the jaw assembly 100 is driven to close when moving to the distal position; after the jaw assembly 100 rotates to a specified angle, the medical staff actuates the handle 800 to close the jaw assembly 100.
  • the jaw assembly 100 is closed to clamp the human tissue for subsequent cutting action.
  • the surgical instrument also includes a locking member 300.
  • the outer sleeve 420 moves to the distal position, the jaw assembly 100 is in a closed state, and the locking member 300 is in a locked state, locking the steering structure 200 so that the jaw assembly cannot rotate.
  • the handle assembly 777 includes a locking portion 7200 (matching teeth 721), and the locking assembly includes a locking groove 731.
  • the locking portion 7200 is separated from the locking groove 731.
  • the locking portion 7200 is plugged into the locking groove 731.
  • the locking groove 731 has a guide wall 7311.
  • the handle assembly 777 switches from the unlocked position to the locked position.
  • the locking portion 7200 moves toward the locking groove 731 and is plugged into the locking groove 731 under the guidance of the guide wall 7311.
  • the setting of the guide wall 7311 ensures that when the locking portion 7200 is not aligned with the locking groove 731, the locking portion 7200 can still be plugged into the locking groove 731, so that the handle assembly 777 can return to its original position smoothly.
  • the locking groove 731 includes two guide walls 7311, which are arranged in a V shape.
  • the guiding directions of the two guide walls 7311 are both toward the bottom of the locking groove 731.
  • the locking portion 7200 includes two matching walls 7211, and the matching walls 7211 and the guide walls 7311 have the same inclination angle.
  • the matching walls 7211 of the locking portion 7200 fit with the guide walls 7311 to enhance the guiding effect.
  • the two matching walls 7211 fit with the two guide walls 7311 respectively, and the two matching walls 7211 are arranged in a V shape, so that the locking portion 7200 is in a raised tooth shape, and the locking groove 731 is in a tooth groove shape.
  • the locking assembly includes a fixing portion 730, which is fixedly connected to the operating assembly 810 (knob cover 820), and a locking groove 731 is opened in the fixing portion 730.
  • a plurality of locking grooves 731 are formed, which are arranged around the rotation axis of the handle assembly 777.
  • the locking groove 731 is arranged around the rotation axis of the handle assembly 777 so that after the handle assembly 777 rotates, there is always a locking groove 731 corresponding to the locking portion 7200.
  • the corresponding means that the locking portion 7200 can be inserted into the locking groove 731 after its position moves toward the locking groove 731.
  • the steering drive structure 700 further includes a plurality of gears, so that the handle assembly 777 has a plurality of rotation gears; the handle assembly 777 is connected to a gear, and in response to the rotation of the handle assembly 777, the handle assembly 777 moves from a position connected to a gear to a position connected to another gear to rotate a set angle.
  • the locking portion 7200 corresponds to a locking groove 7310, and when the handle assembly 777 is switched to the locked position, the locking portion 720 can be smoothly plugged into the locking groove 7310.
  • the gear portion is a gear slot 732 (as shown in FIG. 29C ) provided in the fixed portion 730
  • the transmission assembly includes a gear protrusion and a first elastic member 7621 (as shown in FIG. 26B )
  • the gear protrusion cooperates with the gear slot 732 to connect the handle assembly 777 to the gear portion
  • the gear protrusion is inserted into the gear slot 732 along the radial direction of the fixed portion 730 to cooperate with the gear slot
  • the first elastic member 7621 is connected to the gear protrusion and applies a force along the radial direction of the fixed portion 730 to the gear protrusion
  • the force of the first elastic member 7621 causes the gear protrusion to cooperate with the gear slot 732, so that the handle assembly 777 is locked in the gear; when the medical staff applies a rotational force to the handle assembly 777 (operating handle 710), the gear protrusion is subjected to a
  • the handle assembly 777 is locked to the shift portion when not being operated, and can rotate relative to the shift portion when being operated.
  • the gear protrusion is a fixed bead 764
  • the gear slot 732 includes two guide walls, which are arranged in a V shape.
  • the guide walls guide the fixed bead 764 to enter or leave the gear slot 732 .
  • the transmission assembly rotates, it drives the fixed bead 764 to move from one gear slot 732 to an adjacent gear slot 732 .
  • the fixing bead 764 cooperates with the gear slot 732, it is located at the bottom of the gear slot 732.
  • the fixing bead 764 moves in the circumferential direction.
  • the fixing bead 764 moves in a direction away from the bottom of the gear slot 732 (radially inward), compressing the first elastic member 7621.
  • the first elastic member 7621 is released, causing the fixing bead 764 to move in the direction of the bottom of the adjacent gear slot 732 (radially inward and outward) under the guidance of the guide wall until it fits with the bottom of the gear slot 732, thereby cooperating with the adjacent gear slot 732.
  • the shifting portion and the locking groove 7310 are arranged opposite to each other in the radial direction of the fixing portion 730 so that the shifting portion and the locking groove 7310 can be arranged on the fixing portion 730 without crossing. Accordingly, the fixing beads 764 and the locking portion 7200 are arranged in the radial direction of the fixing portion 730.
  • the locking assembly also includes a second elastic member 7622, one end of the second elastic member 7622 is connected to the first transmission member 760, and the other end is connected to the handle assembly 777, the second elastic member 7622 is arranged along the sliding direction of the handle assembly 777, when the handle assembly 777 is in the unlocking position, the second elastic member 7622 is compressed, when the handle assembly 777 is in the locking position, the second elastic member 7622 is released, and the elastic force of the second elastic member 7622 keeps the handle assembly 777 in the locking position.
  • the handle assembly 777 moves along the axis of the sleeve to switch from the locked position to the unlocked position.
  • the handle assembly 777 Before the medical staff operates the handle assembly 777, the handle assembly 777 is located in the locked position under the action of the second elastic member 7622. The medical staff applies a forward pushing force to the handle assembly 777 to move the handle assembly 777 distally to the unlocked position. The second elastic member 7622 is compressed, and the handle assembly 777 can be rotated while maintaining the forward pushing force on the handle 800, thereby driving the jaw assembly 100 to rotate. After the turning is completed, the medical staff releases the handle assembly 777, and the second elastic member 7622 is released, driving the handle assembly 777 to return the handle assembly 777 to the locked position.
  • the medical staff releases the handle assembly 777, and the locking assembly can automatically switch and fix the handle assembly 777 in the locked position, automatically locking the forceps.
  • the handle assembly 777 is not pushed, the handle assembly 777 cannot be rotated, so that the medical staff who accidentally touch the handle assembly 777 cannot rotate the handle assembly 777, so that the jaw assembly 100 will not rotate due to the medical staff's misoperation.
  • the first transmission member 760 includes a transmission member body and an end member 761, the end member 761 is located in the sliding space and is fixedly connected to the transmission member body, as shown in FIG8 and FIG10, the end member 761 is fixed to the transmission member body by a screw 765.
  • the end member 761 is located at the far end of the sliding space 763, and both sides of the end member 761 in the width direction are provided with a slide groove 7612, and the length direction of the slide groove 7612 is the same as the length direction of the sliding space, and the driving part 720 includes two sliders 722, and the two sliders 722 are respectively inserted into the two slide grooves 7612 on both sides of the end member 761, so that the driving part 720 is slidably connected to the end member 761.
  • the handle assembly 777 is slidably connected to the first transmission member 760, and when the handle assembly 777 rotates to the left, the right part of the slider 722 abuts against the bottom of the right slide groove 7612, driving the first transmission member 760 to rotate to the left, and the same applies to rotating to the right.
  • the end piece 761 is provided with a receiving groove 7611, which is a circular groove.
  • the second elastic piece 7622 is connected to the end piece 761 and is partially received in the receiving groove 7611.
  • the receiving groove 7611 limits the axial position of the second elastic piece 7622 to prevent the second elastic piece 7622 from being deflected or bent, and always provides elastic force along the length direction of the sliding space 763.
  • the fixing bead 764 is arranged on the end piece 761 and is located on the side of the end piece 761 away from the driving part 720.
  • the first elastic piece 7621 and the second elastic piece 7622 are the same elastic piece, and the elastic piece is connected between the fixing bead 764 and the driving part 720.
  • the fixing bead 764 and the locking part 7200 are arranged along the radial direction of the fixing part 730.
  • the elastic piece 762 is a compression spring, which can apply elastic force to both sides of the radial direction, so that the fixing bead 764 is subjected to the elastic force in the radial direction (towards the gear slot 732), and the locking part 7200 is subjected to the elastic force in the radial direction (towards the locking slot 7310).
  • the operating assembly 810 includes a knob cover 820, the proximal end of the sleeve assembly 400 passes through the knob cover 820 and then extends distally, and the sleeve assembly 400 includes an outer sleeve 420 and an inner sleeve 410.
  • the medical staff can rotate the sleeve assembly 400 and the jaw assembly 100 relative to the axis of the sleeve assembly by rotating the knob cover 820.
  • the fixed portion 730 of the steering drive structure 700 is fixedly arranged on the knob cover 820, the first transmission member 760 is arranged on the inner ring of the fixed portion 730, the gear assembly 740 is located at the lower side of the first transmission member 760 and at both sides of the outer sleeve 420, the push rod assembly 750 is slidably connected to the inner sleeve 410 and is received by the outer sleeve 420, and the proximal end of the push rod assembly 750 is connected to the gear assembly 740.
  • the operating component 810 further includes a handle 800 .
  • the mating teeth 721 may also be referred to as the locking portion 7200 .
  • the handle assembly 777 includes an operating handle 710 and a driving portion 720.
  • the operating handle 710 may also be referred to as an operating portion.
  • FIGS. 32 to 44 another embodiment of the present disclosure is similar to the above-mentioned embodiment, with the main difference being that: as shown in FIGS. 32 to 37 , the matching portion 212 is disposed on the inner side of the angle steering member 210, arranged around the rotation axis of the angle steering member 210, and each matching portion 212 is located proximal to the rotation axis of the angle steering member 210.
  • the outer sleeve 420 moves from the proximal position to the distal position, the locking member 300 is driven to move proximally, so that the locking member 300 is switched from the unlocked state to the locked state.
  • the surgical instrument further includes a motion conversion structure 500, through which the outer sleeve 420 is connected to the locking member 300.
  • the motion conversion structure 500 includes a lever member 511, a rotating portion 512, a first connecting portion 513 and a second connecting portion 514.
  • the lever member 511 is connected to the rotating portion 512 and is rotatably connected to the frame 600 through the rotating portion 512.
  • the first connecting portion 513 and the second connecting portion 514 are both connected to the lever member 511 and are respectively located on both sides of the rotating portion 512.
  • the outer sleeve 420 is connected to the first connecting portion 513, and the locking member 300 is connected to the second connecting portion 514.
  • the lever member 511 rotates around the rotating portion 512, so that the second connecting portion 514 drives the locking member 300 to move in a second direction.
  • the first direction is opposite to the second direction.
  • the lever member 511 rotates
  • the first connection portion 513 and the second connection portion 514 rotate in opposite directions, for example, one to the left and the other to the right.
  • the first connection portion 513 and the second connection portion 514 move in the same clockwise or counterclockwise direction, so that when the outer sleeve 420 moves toward the distal end, the motion conversion structure 500 drives the locking member 300 to move toward the proximal end.
  • the locking member 300 moves toward the proximal end so that it cooperates with the matching portion 212 to achieve the locking of the jaw assembly 100.
  • the motion conversion structure 500 drives the locking member 300 to move toward the distal end.
  • the locking member 300 moves toward the distal end so that it separates from the matching portion 212 to release the locking of the jaw assembly 100.
  • the locking member 300 moves in the second direction, the first direction is opposite to the second direction, and the first direction and the second direction are parallel or colinear with the axial direction of the sleeve assembly 400.
  • the first connecting portion 513 rotates counterclockwise
  • the second connecting portion 514 rotates counterclockwise, driving the locking member 300 to move toward the distal end.
  • the first connecting portion 513 rotates clockwise
  • the second connecting portion 514 rotates clockwise, driving the locking member 300 to move toward the proximal end.
  • connection between the first connection part 513 and the outer sleeve 420, the second connection part 514 and the locking The connection method between the components 300 is the same as that in the above-mentioned embodiment (the mating portion is located on the far side of the rotation axis of the angle steering component), and will not be repeated here.
  • the locking member 300 switches from the unlocked state to the locked state by moving proximally.
  • the outer sleeve 420 is located at the proximal position, the jaw assembly 100 is in the open state, the locking member 300 is in the unlocked state, and in response to the rotation of the angle steering member, the jaw assembly 100 rotates relative to the sleeve assembly 400.
  • the medical staff can control the steering of the jaw assembly 100 through the operating assembly; when the outer sleeve 420 moves from the proximal position to the distal position, the jaw assembly 100 switches to the closed state, and the outer sleeve 420 drives the locking member 300 to move proximally through the motion conversion structure 500, so that the locking member 300 switches from the unlocked state to the locked state, and the locking member 300 locks the angle steering member, so that the angle steering member cannot rotate, thereby preventing the jaw assembly 100 from rotating relative to the sleeve assembly 400.
  • the locking of the steering of the jaw assembly 100 can be completed while closing the jaw assembly 100, so as to prevent the jaw assembly 100 from rotating and pulling the tissue when clamping the tissue.
  • the outer sleeve 420 is switched from the proximal position to the distal position, so that the jaw assembly 100 is switched from the open state to the closed state in the following manner.
  • the angle steering member 210 is provided with a steering hole 213, and the ejector seat 411 is provided with a fixed shaft 4115.
  • the angle steering member 210 is fixedly connected to the ejector seat 411 through the cooperation between the steering hole 213 and the fixed shaft 4115.
  • the angle steering member 210 is provided with a groove 2111, and the groove 2111 is located on the inner side of the wall portion.
  • the matching portion 212 is arranged in the groove 2111, and the steering hole 213 is connected to the groove 2111.
  • the locking member 300 includes a pull rod 310 and a locking portion 320.
  • the pull rod 310 is connected to the lever member 511 at the proximal end and the locking portion 320 at the distal end.
  • the locking portion 320 includes a locking head 330 and a body portion 340.
  • the body portion 340 is connected to the locking head 330.
  • the locking head 330 is separated from the matching portion 212.
  • the medical staff operates the handle 800 to move the outer sleeve 420 toward the distal end, thereby closing the jaw assembly 100.
  • the locking member 300 moves toward the proximal end. The locking member 300 switches from the unlocked state to the locked state.
  • the locking head 330 moves toward the proximal end in the steering hole 213, moves into the groove 2111 and engages with the corresponding matching portion 212, locking the angle steering member 210, and thereby realizing the rotational locking of the jaw assembly 100.
  • the matching portion 212 is disposed on the inner side of the wall portion 211 .
  • the locking member 300 is in an unlocked state, the locking member 300 is unlocked from the matching portion 212 .
  • the locking member 300 moves toward the proximal end to a locked state, the locking member 300 is locked from the matching portion 212 .
  • the surgical instrument further includes a motion conversion structure 500 and a locking member 300 .
  • the sleeve assembly 400 includes an inner sleeve 410 and an outer sleeve 420 .
  • the outer sleeve 420 is sleeved on the inner sleeve 410 and can move relative to the inner sleeve 410.
  • the outer sleeve 420 is connected to the locking member 300 via a motion conversion structure 500.
  • the outer sleeve 420 has a proximal position and a distal position.
  • the motion conversion structure 500 includes a gear and two racks (not shown in the figure), the gear is rotatably arranged on the frame 600, the two racks are respectively a first rack and a second rack, the first rack and the second rack are respectively arranged on both sides of the gear, and both are meshed with the gear, and when the gear rotates, the movement directions of the two racks are opposite.
  • the first rack is connected to the outer sleeve 420
  • the second rack is connected to the locking member 300.
  • the outer sleeve 420 drives the first rack to move in a first direction to drive the gear to rotate, and then drives the second rack to move in a second direction, and the first direction is opposite to the second direction.
  • the outer sleeve 420 When the outer sleeve 420 moves toward the distal end, it drives the first rack to move toward the distal end, so that the gear rotates, thereby driving the second rack and the locking member 300 to move toward the proximal end; when the outer sleeve 420 moves toward the proximal end, it drives the first rack to move toward the proximal end, so that the gear rotates, thereby driving the second rack and the locking member 300 to move toward the distal end.

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Robotics (AREA)
  • Mechanical Engineering (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne un instrument chirurgical. L'instrument chirurgical comprend : un ensemble mâchoire (100), un ensemble manchon (400), un élément de direction angulaire (210) et un élément de verrouillage (300). L'élément de direction angulaire (210) est relié rotatif à l'ensemble manchon (400); l'ensemble mâchoire (100) est relié à l'élément de direction angulaire (210); et en réponse à la rotation de l'élément de direction angulaire (210), l'ensemble mâchoire (100) est conçu pour tourner par rapport à l'ensemble manchon. L'élément de direction angulaire (210) est pourvu d'une partie paroi (211) et d'une partie d'adaptation (212), et la partie d'adaptation (212) est disposée sur le côté interne de la partie paroi (211). L'élément de verrouillage (300) a un état déverrouillé et un état verrouillé; lorsqu'il est dans l'état déverrouillé, l'élément de verrouillage (300) est séparé de la partie d'adaptation (212), et l'ensemble mâchoire (100) est configuré pour tourner par rapport à l'ensemble manchon (400) en réponse à la rotation de l'élément de direction angulaire (210); et lorsqu'il est dans l'état verrouillé, l'élément de verrouillage (300) correspond à la partie d'adaptation (212) pour empêcher l'ensemble mâchoire (100) de tourner par rapport à l'ensemble manchon (400). L'instrument chirurgical peut verrouiller de manière stable l'ensemble mâchoire et empêcher l'ensemble mâchoire de tourner.
PCT/CN2024/102197 2023-06-30 2024-06-28 Instrument chirurgical Ceased WO2025002304A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CN202310800963.9 2023-06-30
CN202310800904.1A CN117100343A (zh) 2023-06-30 2023-06-30 外科器械
CN202310800963.9A CN117100344A (zh) 2023-06-30 2023-06-30 外科器械
CN202310796810.1 2023-06-30
CN202310796810.1A CN117481724B (zh) 2023-06-30 2023-06-30 外科器械
CN202310800904.1 2023-06-30

Publications (1)

Publication Number Publication Date
WO2025002304A1 true WO2025002304A1 (fr) 2025-01-02

Family

ID=93937690

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2024/102197 Ceased WO2025002304A1 (fr) 2023-06-30 2024-06-28 Instrument chirurgical

Country Status (1)

Country Link
WO (1) WO2025002304A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119655813A (zh) * 2025-02-11 2025-03-21 常州安康医疗器械有限公司 具有新型钳口弯转机构的电动吻合器
CN119791755A (zh) * 2025-01-06 2025-04-11 江苏孜航精密五金有限公司 钉仓组件方向调节锁定装置及吻合器

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103340667A (zh) * 2013-07-05 2013-10-09 顾金娥 刀片夹持器
CN105025825A (zh) * 2013-02-28 2015-11-04 伊西康内外科公司 具有小齿轮和反向齿条的外科器械端部执行器关节运动驱动器
CN105962981A (zh) * 2016-06-08 2016-09-28 宁波维尔凯迪医疗器械有限公司 一种关节转动结构及具有该结构的吻合器
KR101760824B1 (ko) * 2016-08-12 2017-07-24 주식회사 메디튤립 엔드이펙터의 아티큘레이션용 노브유닛과, 이것을 이용한 외과용 선형 스테이플 장치
US20190290266A1 (en) * 2014-06-25 2019-09-26 Ethicon Llc Articulation drive features for surgical stapler
CN110811772A (zh) * 2019-11-28 2020-02-21 江西同德药业发展有限公司 一种角度可调式医用清创水刀
CN114224414A (zh) * 2022-01-25 2022-03-25 天津瑞奇外科器械股份有限公司 一种外科器械
CN117100344A (zh) * 2023-06-30 2023-11-24 江苏风和医疗器材股份有限公司 外科器械
CN117100343A (zh) * 2023-06-30 2023-11-24 江苏风和医疗器材股份有限公司 外科器械
CN117100342A (zh) * 2023-06-30 2023-11-24 江苏风和医疗器材股份有限公司 外科器械
CN117100345A (zh) * 2023-06-30 2023-11-24 江苏风和医疗器材股份有限公司 外科器械
CN117481724A (zh) * 2023-06-30 2024-02-02 江苏风和医疗器材股份有限公司 外科器械

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105025825A (zh) * 2013-02-28 2015-11-04 伊西康内外科公司 具有小齿轮和反向齿条的外科器械端部执行器关节运动驱动器
CN103340667A (zh) * 2013-07-05 2013-10-09 顾金娥 刀片夹持器
US20190290266A1 (en) * 2014-06-25 2019-09-26 Ethicon Llc Articulation drive features for surgical stapler
CN105962981A (zh) * 2016-06-08 2016-09-28 宁波维尔凯迪医疗器械有限公司 一种关节转动结构及具有该结构的吻合器
KR101760824B1 (ko) * 2016-08-12 2017-07-24 주식회사 메디튤립 엔드이펙터의 아티큘레이션용 노브유닛과, 이것을 이용한 외과용 선형 스테이플 장치
CN110811772A (zh) * 2019-11-28 2020-02-21 江西同德药业发展有限公司 一种角度可调式医用清创水刀
CN114224414A (zh) * 2022-01-25 2022-03-25 天津瑞奇外科器械股份有限公司 一种外科器械
CN117100344A (zh) * 2023-06-30 2023-11-24 江苏风和医疗器材股份有限公司 外科器械
CN117100343A (zh) * 2023-06-30 2023-11-24 江苏风和医疗器材股份有限公司 外科器械
CN117100342A (zh) * 2023-06-30 2023-11-24 江苏风和医疗器材股份有限公司 外科器械
CN117100345A (zh) * 2023-06-30 2023-11-24 江苏风和医疗器材股份有限公司 外科器械
CN117481724A (zh) * 2023-06-30 2024-02-02 江苏风和医疗器材股份有限公司 外科器械

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119791755A (zh) * 2025-01-06 2025-04-11 江苏孜航精密五金有限公司 钉仓组件方向调节锁定装置及吻合器
CN119655813A (zh) * 2025-02-11 2025-03-21 常州安康医疗器械有限公司 具有新型钳口弯转机构的电动吻合器

Similar Documents

Publication Publication Date Title
CN101156801B (zh) 抓紧钳机构
WO2025002304A1 (fr) Instrument chirurgical
CN116491998B (zh) 外科器械
CN114305558B (zh) 一种外科器械及其操作方法
CN117481724B (zh) 外科器械
JP2018508278A (ja) 外科用器具用の万能ハンドル
CN216060620U (zh) 电动外科器械
CN117100342B (zh) 外科器械
CN117100345B (zh) 外科器械
JP7441842B2 (ja) 触発機構及びステープラー
CN117100344A (zh) 外科器械
CN115137426B (zh) 电动外科器械
CN117100343A (zh) 外科器械
WO2024160104A1 (fr) Instrument chirurgical
CN110604602B (zh) 推架及电动吻合器
CN110604603B (zh) 驱动机构及电动吻合器
CN116549040B (zh) 外科器械
CN116549039B (zh) 外科器械
CN110604601B (zh) 螺杆及电动吻合器
WO2025092969A1 (fr) Instrument chirurgical
CN217365963U (zh) 一种外科器械
CN119055300A (zh) 用于外科器械的回刀工具和外科器械
CN118787395A (zh) 外科器械
CN119055301B (zh) 外科器械
CN223438573U (zh) 外科器械

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 24830935

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE