WO2022143959A1 - 一种施夹钳 - Google Patents

一种施夹钳 Download PDF

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Publication number
WO2022143959A1
WO2022143959A1 PCT/CN2021/143405 CN2021143405W WO2022143959A1 WO 2022143959 A1 WO2022143959 A1 WO 2022143959A1 CN 2021143405 W CN2021143405 W CN 2021143405W WO 2022143959 A1 WO2022143959 A1 WO 2022143959A1
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WO
WIPO (PCT)
Prior art keywords
clip
clamp
guide
jaw
feeding
Prior art date
Application number
PCT/CN2021/143405
Other languages
English (en)
French (fr)
Inventor
孙宝峰
戴霞红
Original Assignee
江苏风和医疗器材股份有限公司
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Publication date
Application filed by 江苏风和医疗器材股份有限公司 filed Critical 江苏风和医疗器材股份有限公司
Publication of WO2022143959A1 publication Critical patent/WO2022143959A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/128—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips
    • A61B17/1285—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips for minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/122—Clamps or clips, e.g. for the umbilical cord
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/128—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
    • A61B2017/00398—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like using powered actuators, e.g. stepper motors, solenoids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B2017/12004—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding

Definitions

  • the invention relates to the technical field of medical devices, in particular to a clamp applicator.
  • the clip is used to clamp the tissue including the internal pipeline in the minimally invasive surgery.
  • the internal pipeline includes blood vessels, etc., and the tissue is fixed between the two clip arms through the clamping of the two opposite clip arms, so that the to hemostasis and ligation.
  • a clip applier is used to apply the clip it accommodates to tissue to achieve gripping.
  • the clip applier includes a jaw assembly, the opened jaw assembly receiving the clip.
  • the tissue is placed between the two clamping arms of the clip, and the jaw assembly is closed.
  • the jaw assembly drives the two clamping arms of the clip to move, so that the two clamping arms are close to each other and snap together, thereby realizing the clamping of the tissue. .
  • the clip needs to be sent to the distal end of the jaw assembly before applying the clip.
  • the clip cannot be fully opened to restore its original shape or keep the same as the opening angle of the jaw assembly, resulting in a limited clamping space between the two arms of the clip, which cannot be Holds the tissue to be clamped well.
  • the clip cannot be effectively positioned at the distal end of the jaw assembly, so that the position of the clip cannot be changed so that it cannot be accurately engaged, so that effective clamping cannot be achieved. Even in contact with tissue, the clips will retreat, making it impossible to apply the clips.
  • the present invention aims to provide a clamp applier.
  • the present invention is achieved through the following technical solutions:
  • a clamp applier includes a jaw assembly and a clip, the jaw assembly includes a clamp arm, the jaw assembly further includes a stopper, a part of the stopper is connected with the clamp arm, and the stopper has elasticity; the clamp arm includes a guide portion , the stopper and the guide part form a guide space, and the stopper constrains the first part when the first part of the clip moves in at least a part of the guide space.
  • the guide portion includes a guide surface, and the guide surface includes a first distal end; in an initial state, the distance between at least part of the guide surface including the first distal end and the stopper is in a direction toward the first distal end decrease.
  • the distance is smallest at the first distal end.
  • the forceps arm further includes an accommodating portion, the accommodating portion is located at the second distal end of the forceps arm, and the accommodating portion is used for accommodating at least a part of the first portion of the clip located at the second distal end of the jaw assembly.
  • the accommodating portion is a recess.
  • the recess includes a proximal wall and a distal wall, and the proximal wall meets the first distal end.
  • the pliers arm further includes an accommodating portion, the accommodating portion is located at the second distal end of the pliers arm, at least a part of the first portion of the clip is accommodated in the accommodating portion, and the stopper abuts the first portion.
  • At least part of the guide surface including the first distal end is substantially arc-shaped.
  • the guide surface includes a stroke extension structure.
  • the stroke extension structure is a dimple.
  • the clamp arm includes a first clamp arm and a second clamp arm
  • the clamp applier further includes a clamp box
  • the first clamp arm is pivotally connected to the clamp box
  • the second clamp arm is pivotally connected to the clamp box
  • An elastic element is connected between the first clamp arm and the second clamp arm.
  • the elastic element is a U-shaped spring.
  • the stopper includes a base portion and a movable portion, the base portion is connected with the clamp arm, and the movable portion and the guide portion form a guide space.
  • the clamp arm includes a first clamp arm and a second clamp arm, the first clamp arm includes two guide spaces, and the second clamp arm includes two guide spaces; the first part includes a first protrusion and a second protrusion,
  • the clip includes a first clip arm and a second clip arm, the first clip arm includes two first protrusions, and the second clip arm includes two second protrusions; when the clip moves in the jaw assembly, the two first protrusions
  • the two protruding parts are located in the two guide spaces of the second clamp arm in a one-to-one correspondence, and the two second protrusions are located in the two guide spaces of the first clamp arm in a one-to-one correspondence.
  • a clamp applier comprising a jaw assembly and a clip, the jaw assembly comprising a clamp arm, and characterized in that the jaw assembly further includes a stopper, a part of the stopper is connected with the clamp arm, and the stopper has elasticity;
  • the arm includes a receiving portion, the receiving portion is located at the first distal end of the clamp arm; in response to the clip being located at the first distal end of the jaw assembly, at least a portion of the first portion of the clip is received in the receiving portion, and the stopper resists Take the first one.
  • the accommodating portion is a recess.
  • the clamp arm includes a first clamp arm and a second clamp arm
  • the clamp applier further includes a clamp box
  • the first clamp arm is pivotally connected to the clamp box
  • the second clamp arm is pivotally connected to the clamp box
  • An elastic element is connected between the first clamp arm and the second clamp arm.
  • the elastic element is a U-shaped spring.
  • the clamp arm further includes a guide portion, the stopper and the guide portion form a guide space, and the first portion of the clip is constrained when moving in at least a part of the guide space.
  • the guide portion includes a guide surface, and the guide surface includes a second distal end; in an initial state, the distance between at least part of the guide surface including the second distal end and the stopper is in a direction toward the second distal end decrease.
  • the distance is smallest at the second distal end.
  • At least part of the guide surface including the second distal end is substantially arc-shaped.
  • the stopper includes a base portion and a movable portion, the base portion is connected with the clamp arm, and the movable portion and the guide portion form a guide space.
  • the clamp arm includes a guide portion
  • the stopper is arranged on the clamp arm
  • the guide portion and the stopper form a guide space.
  • the clamp arm includes an accommodating part, the accommodating part is located at the distal end of the clamp arm, at least a part of the protruding part of the clip is located in the accommodating part, and the protruding part of the clip is abutted by an elastic stopper , to stabilize the position of the clip at the distal end of the jaw assembly.
  • Fig. 1 is the three-dimensional schematic diagram of the clamp applier provided by the first embodiment of the present invention
  • Fig. 2 is the front view of the partial casing of the clamp applier shown in Fig. 1 after being hidden;
  • FIG. 3 is a schematic perspective view of a part of the casing of the clamp applier shown in FIG. 1 after being hidden;
  • Fig. 4A is the front structure schematic diagram of the clip of the clip applier shown in Fig. 1;
  • Fig. 4B is the side structure schematic diagram of the clamp of the clamp applier shown in Fig. 1;
  • Figure 5 is an exploded perspective view of the jaw assembly and the shaft assembly of the clamp applier shown in Figure 1;
  • Fig. 6 is the structural representation of the jaw drive mechanism of the clamp applier shown in Fig. 1;
  • Figure 7 is an exploded perspective view of part of the jaw drive mechanism shown in Figure 6;
  • FIG. 8 is a schematic structural diagram of the clip feeding drive mechanism of the clip applier shown in FIG. 1;
  • FIG 9 is an exploded perspective view of the clip feeding drive mechanism of the clip applier shown in Figure 8.
  • FIG. 10 is a front view of the push-clamp rod and the adapter block of the push-clamp drive mechanism of the clamp applier shown in FIG. 1;
  • Fig. 11 is a perspective view of the push-clamp rod of the push-clamp drive mechanism of the clamp applier shown in Fig. 10;
  • FIG. 12 to 14 are schematic diagrams of state changes of the transmission mechanism of the clamp applier shown in FIG. 1;
  • Fig. 15A is a cross-sectional view of the jaw assembly and the shaft assembly from the M-M perspective of Fig. 15B when the wrench of the clamp applier shown in Fig. 1 is in an open position;
  • FIG. 15B is a cross-sectional view of the jaw assembly and the shaft assembly from the L-L perspective of FIG. 15A when the wrench of the clamp applier shown in FIG. 1 is in the open position;
  • 16A is a cross-sectional view of the jaw assembly and the shaft assembly from the M-M perspective of FIG. 16B when the wrench of the clamp applier shown in FIG. 1 is in a neutral position;
  • 16B is a cross-sectional view of the jaw assembly and the shaft assembly from the L-L perspective of FIG. 16A when the wrench of the clamp applier shown in FIG. 1 is in a neutral position;
  • 17A is a cross-sectional view of the jaw assembly and the shaft assembly from the M-M perspective of FIG. 17B when the wrench of the clamp applier shown in FIG. 1 is in a closed position;
  • 17B is a cross-sectional view of the jaw assembly and the shaft assembly from the L-L perspective of FIG. 17A when the wrench of the clamp applier shown in FIG. 1 is in the closed position;
  • Fig. 18 is a perspective exploded view of the partial switching mechanism of the clamp applier shown in Fig. 1;
  • FIG. 19 is an exploded perspective view of the partial switching mechanism of the clamp applier shown in FIG. 1 from another perspective;
  • FIG. 20 is a schematic structural diagram of the transmission mechanism of the knob assembly part of the clamp applier shown in FIG. 1;
  • FIG. 21 is a schematic structural diagram of the mating mechanism of the clamp applier shown in FIG. 1;
  • Figure 22 is an exploded schematic view of the fitting block of the clamp applier shown in Figure 1 assembling the second fitting;
  • Figure 23A is a schematic diagram of the movement process of the clip feeding block of the clip applier shown in Figure 1;
  • Figure 23B is a schematic diagram of the movement trajectory of the clip feeding block of the clip applier shown in Figure 23A;
  • Fig. 24A is a schematic diagram of the movement process of the push block of the clamp applier shown in Fig. 1;
  • Fig. 24B is a schematic diagram of the movement trajectory of the push block of the clamp applier shown in Fig. 24A;
  • Figure 25 is a schematic structural diagram of the wrench for applying the clamp shown in Figure 2;
  • Figure 26 is a schematic exploded view of the structure of the guide channel of the wrench for applying the clamp shown in Figure 25;
  • Figure 27 is a schematic structural diagram of the guide pivot member of the clamp applier shown in Figure 2;
  • Fig. 28 is a schematic view of the assembly of the guide pivot member and the wrench locking spring element of the clamp applier shown in Fig. 2;
  • Fig. 29 is a schematic structural diagram of the path switching member of the clamp applier shown in Fig. 2;
  • FIG. 30 is a schematic view of the internal structure of the housing of the part of the clamp applier shown in FIG. 1;
  • 31A is a state diagram of the wrench locking mechanism when the wrench of the clamp applier shown in FIG. 2 is in the open position;
  • FIG. 31B is a state diagram of the wrench locking mechanism when the wrench of the clamp applier shown in FIG. 2 moves forward to the middle position;
  • 31C is a state diagram of the wrench locking mechanism when the wrench of the clamp applier shown in FIG. 2 is in the closed position;
  • 31D is a state diagram of the wrench locking mechanism when the wrench of the clamp applier shown in FIG. 2 is reset and moved to the middle position;
  • FIG. 32 is a cross-sectional view of the clamp applier shown in FIG. 1 from a perspective of a path switching member;
  • 33A is a state diagram of the path switching member when the wrench of the clamp applier shown in FIG. 1 is in the open position;
  • 33B is a state diagram of the path switching member when the wrench of the clamp applier shown in FIG. 1 moves forward to the first adjacent position;
  • 33C is a state diagram of the path switching member when the wrench of the clamp applier shown in FIG. 1 is in the closed position;
  • 33D is a state diagram of the path switching member when the wrench of the clamp applier shown in FIG. 1 is reset and moved to the second adjacent position;
  • Figure 34 is a schematic structural diagram of the jaw assembly of the clamp applier shown in Figure 1;
  • Figure 35 is a schematic structural diagram of the first clamping arm or the second clamping arm of the jaw assembly shown in Figure 34;
  • Figure 36 is a cross-sectional view of the jaw assembly shown in Figure 34 from a perspective;
  • Fig. 37 is a schematic structural diagram of the stopper of the jaw assembly shown in Fig. 34 being matched with the clip;
  • Figure 38 is a schematic structural diagram of the stopper of the jaw assembly shown in Figure 34;
  • Figure 39 is a cross-sectional view of the jaw assembly shown in Figure 34 from another perspective;
  • Figure 40 is a cross-sectional view of the jaw assembly assembly cartridge shown in Figure 34;
  • Figure 41 is a schematic view of the jaw assembly shown in Figure 34 in a closed state
  • Figure 42 is a schematic view of the jaw assembly shown in Figure 34 in an open state
  • 43 to 45 are schematic diagrams of state changes of part of the transmission mechanism of the clamp applier provided by the second embodiment of the present invention.
  • 46 is an exploded perspective view of a part of the switching mechanism of the clamp applier provided by the third embodiment of the present invention.
  • 47 to 50 are schematic diagrams of state changes of a part of the transmission mechanism of the surgical instrument provided by the third embodiment of the present invention.
  • 51 is an exploded perspective view of the switching mechanism of the clamp applier provided by the fourth embodiment of the present invention.
  • 52 to 54 are schematic diagrams showing state changes of a part of the transmission mechanism of the clamp applier according to the fourth embodiment of the present invention.
  • first clamp arm; 1' the second clamp arm; 10, the clip; 11, the bottom; 12, the first side part; 13, the second side part; 14, the notch; 15, the first guide part; 16, second guide part; 17, first accommodating part; 18, second accommodating part; 19, protrusion; 2, stopper; 21, first stopper; 22, end; 23, base; 25, Middle part; 31, first clamping arm; 32, second clamping arm; 33, connecting part; 35, first engaging part; 36, second engaging part; 41, first protruding part; 42, second protruding part part; 51, guide surface; 52, first part; 53, second part; 60, first elastic element; 71, proximal side; 72, distal side; 73, junction; 80, pit; 100, jaw assembly 200, shaft assembly; 210, sleeve; 220, cartridge; 221, bottom wall; 221a, first bottom wall; 221b, second bottom wall; 222, first side wall; 223, second side wall; 224, opening; 225, transverse barb; 231, clip feeding block; 232
  • the user of the surgical instrument may be a clinician, a doctor who manipulates the surgical instrument during surgery to perform surgery.
  • proximal refers to the part relatively close to the clinician
  • distal refers to the part relatively far from the clinician.
  • Left and “Right” refer to the position of the surgical instrument shown in Figure 1, eg, the jaw assembly is “left” and the cannula 210 is “right.”
  • upper and “lower” refer to the relative positions of the upper jaw and the lower jaw of the jaw assembly.
  • the upper jaw is “upper” and the lower jaw is “lower”. It is to be understood that the orientations “near”, “rear”, “far”, “front”, “left”, “right”, “up” and “down” are defined for ease of description, however, surgical instruments can be in many orientations and positions use, so these terms expressing relative positional relationships are not restrictive and absolute.
  • the clamp applier 1000 includes an operating assembly 300 , a shaft assembly 200 extending from the operating assembly 300 , and a jaw assembly 100 disposed at one end of the shaft assembly 200 .
  • the clip applier 1000 needs to perform three actions: a clip feeding action, a jaw closing action (clamping action) and a pushing action, and the clip feeding action must be followed by a jaw closing action.
  • the above three actions need to be completed. The number of times the clip applier 1000 is used depends on the number of clips contained therein.
  • the operating assembly 300 includes a main body 320 and a wrench (actuator 330 ) movably mounted on the main body 320 , the main body 320 includes a housing 321 , the wrench is movably connected to the housing 321 , and the housing 321 is divided into roughly spindles according to the positional relationship
  • a cylindrical head casing and a handle casing extending from the lower side of the head casing, the handle casing and the wrench form a handle assembly, the user can grasp the handle casing with one hand, and pull the wrench with fingers to make the wrench relative to each other.
  • the main body 320 moves.
  • the clip applier also includes a transmission mechanism, part of the transmission mechanism is accommodated in the housing 321 of the operating assembly 300 , and part of the transmission mechanism is located in the shaft assembly 200 .
  • the transmission mechanism includes a clip feeding driving mechanism, a jaw driving mechanism and a pushing clip driving mechanism, and the wrench drives the transmission mechanism to move, thereby driving the clip feeding drive.
  • the mechanism, jaw drive mechanism and push-clamp drive mechanism move.
  • the clamp-feeding mechanism executes the clamp-feeding action
  • the jaw-drive mechanism executes the jaw closing action (clamp-applying action)
  • the push-clamp drive mechanism executes the push-clamp action.
  • the clamp 10 for applying the clamp includes a first clamping arm 31 , a second clamping arm 32 and a connecting portion 33 , and the connecting portion 33 is located between the first clamping arm 31 and the second clamping arm 32 During this time, the two clamping arms can pivot relative to each other around the connecting portion 33 .
  • the first clamp arm 31 includes two first protrusions 41
  • the second clamp arm 32 includes two second protrusions 42
  • the first clamp arm 31 further includes a first engaging portion 35
  • the second clamp arm 32 further includes a first clamping portion 35 .
  • Two engaging parts 36 are two engaging parts.
  • the first clamping arm 31 and the second clamping arm 32 of the clip 10 approach each other under the driving of the external force, and finally the first engaging portion 35 is engaged with the second engaging portion 36 of the second clamping arm 32, so that the A clamping arm 31 and a second clamping arm 32 are fixed to each other to realize the clamping of the tissue located between the first clamping arm 31 and the second clamping arm 32.
  • the first clamping arm 31 and the second clamping arm 32 are combined. It is defined that the clip 10 is in a closed/locked state when the first clip arm 31 and the second clip arm 32 of the clip 10 are combined with each other, and the clip 10 is in an open state when the first clip arm 31 and the second clip arm 32 of the clip 10 are disengaged from each other.
  • the first engaging portion 35 is a tip portion disposed at the distal end of the first clip arm 31
  • the second engaging portion 36 is a curved C-shaped hook portion disposed at the distal end of the second clip arm 32 .
  • the jaw assembly 100 includes a first clamp arm 1 and a second clamp arm 1' pivotably connected to the shaft assembly 200, respectively, and a clamp 10 can be supported between the first clamp arm 1 and the second clamp arm 1',
  • the jaw assembly 100 switches between an open state and a closed state. In the open state, the jaw assembly 100 clamps a clamp 10 in an open state. Due to structural limitations, the jaw assembly 100 cannot be opened unrestrictedly.
  • the open state of the jaw assembly 100 includes an open bottom state. The distance between the distal end of the clamp arm 1 and the distal end of the second clamp arm 1' is the largest in the up-down direction. When the jaw assembly 100 is in the closed state, the distal ends of the first clamp arm 1 and the second clamp arm 1' are in the up-down direction.
  • the closing of the jaw assembly 100 causes the clip 10 to transition from the open state to the closed state.
  • the proximal driving member of the jaw drives the sleeve 210 (the distal driving member of the jaw) to move forward and backward, and the specific manner can be found in the movement mode of the jaw driving mechanism described later.
  • the forward movement of the sleeve 210 causes the closing movement of the jaw assembly 100 to close the jaw assembly 100, the first jaw arm 1 and the second jaw arm 1' compress the clip 10 located therein, and the rearward movement of the sleeve 210 causes the jaw assembly
  • the 100 opening movement opens the jaw assembly 100 .
  • the shaft assembly 200 includes a clip box 220 , a base 240 , a clip feeding assembly, a clip push assembly, and a sleeve 210 sleeved on the clip box 220 , the clip feeding assembly, and the clip push assembly.
  • the clip feeding assembly belongs to the clip feeding drive mechanism
  • the push clip assembly belongs to the push clip drive mechanism
  • the sleeve 210 belongs to the jaw drive mechanism.
  • the first end (distal end) of the clip box 220 is connected to the jaw assembly 100, and the second end (proximal end) opposite to the first end is fixedly connected to the main body 320.
  • the clip box 220 can accommodate at most M clips 10, and M is greater than Equal to 2, which is related to the size of the cartridge 220.
  • the number of clips 10 in the cartridge 220 is reduced by one when the clip applier is used once.
  • N clips 10 are accommodated in the clip box 220, N is less than or equal to M, and the N clips 10 are sequentially arranged from the first end to the second end, namely the first clip, the second clip to the Nth clip.
  • the first clip is closest to the first end and is fed into the jaw assembly 100 first.
  • the clips other than the first clip in the clip box 220 are defined as other clips.
  • the cartridge 220 includes M stations, which are arranged from the distal end of the cartridge 220 to the proximal end, which are the first station, the second station, ... the Mth station, and the first clip is located at the frontmost first station.
  • the corresponding sequence of the second clip to the Nth clip is arranged in the second station to the Nth station.
  • the cartridge 220 has a bottom wall 221, the bottom wall 221 is formed with a plurality of transverse barbs 225 along its length, towards the distal end of the cartridge 220 and inclined into the cartridge 220, the transverse barbs 225 are equally spaced, and the transverse barbs 225 The distal end of the slanted end.
  • the clip 10 moves forward in the axial direction, the clip 10 slides into contact with the front transverse barb 225 and bends it to the bottom wall 221 to smoothly pass through the transverse barb 225, so that the clip 10 enters the adjacent front end tool from the current station.
  • the inclined ends of the transverse barbs 225 abut against the rear side of the clip 10 to prohibit the clip 10 from retreating, thereby prohibiting the clip 10 from entering the adjacent rear end station from the current station. It can be seen from this that the transverse barbs 225 have a one-way locking function to prevent the clip 10 from retreating between adjacent stations.
  • a first transverse barb and a second transverse barb are arranged between two adjacent stations.
  • the transverse barb catches the second protrusion 42 on the same side of the same clip 10 behind the clip 10 to prevent the clip 10 from entering the adjacent rear end station from the current station in the magazine 220 .
  • the clamp box 220 , the clamp feed assembly and the push clamp assembly at the shaft assembly 200 form a special three-layer design, and the specific details are as follows.
  • the clip feeding assembly is used to abut and push the first clip to move forward to enter the jaw assembly 100; the push clip assembly is used to abut and push the second clip to the Nth clip to move forward; the jaw assembly 100 is used to move from
  • the cartridge 220 receives one of the clips 10 (the first clip) and performs a closing action to compress the clips 10 to a closed state.
  • the clip feeding component is located on the first side of the clamping surface of the clip 10
  • the clip pushing component is located on the second side of the clamping surface of the clip 10 , and the first side is different from the second side.
  • the clip-feeding assembly and the push-clamp assembly are independent parts, located on two sides of at least one clip 10, respectively, and independently push the first clip or other clips from both sides, so that the advancing length of the clip feeding and the advancing length of the pushing clip do not need to be equal
  • the size design of the jaw assembly 100 and the size design of the clamp box 220 can be independent of each other, which provides a design space for independently optimizing the structure of the jaw assembly 100 and the structure of the clamp box 220, and also optimizes the structure of the push clamp assembly and the clamp feed assembly itself.
  • the design space is provided, and the clamp applier has a simple structure and a more compact size.
  • the advancing length of the clip feeding and the advancing length of the pushing clip are equal, so that the size design of the jaw assembly 100 and the size design of the clamp box 220 must match each other.
  • the size of the clamp appliers is not compact and the design is complicated. For example, the distance between the adjacent clamps 10 in the clamp box 220 cannot be too small, otherwise the size of the jaw assembly 100 is too small to stably hold the first clamp.
  • the size of the jaw assembly 100 It should not be too large, otherwise the distance between the clamp box 220 adjacent to the clip 10 is large, resulting in a long size of the clamp box 220 and a large overall size of the clamping forceps.
  • the distance between the clips 10 in the clip box 220 can be designed to be small enough, and it is not necessary to consider the advancing length of the clipping assembly, the clips of the jaw assembly 100
  • the movable channel of the 10 can be designed to be long enough to meet the stable guiding, clamping and compression of the clip 10, without being limited by the distance between the clips 10; in addition, the clip feeding component and the clip pushing component can be individually designed to be sufficiently rigid To solve the problem that the clip cannot be pushed stably in the prior art.
  • the first clamping arm 31 and the second clamping arm 32 respectively have a center line
  • the clamp 10 includes a first side surface and a second side surface that are parallel. Since the clamp 10 is substantially C-shaped in the open state, the first side surface in the open state is and the second side surface are C-shaped.
  • the clamping surface is a surface formed by the two centerlines of the first clamping arm 31 and the second clamping arm 32, and the two sides of the surface are the above-mentioned places where the clip feeding component and the clip pushing component are arranged respectively. The first side and the second side of the clamping surface.
  • a first clamping surface is formed on the first side surface of the C-shape
  • a second clamping surface is formed on the second side surface
  • the inner side is between the first clamping surface and the second clamping surface
  • the two outer sides of the first clamping surface and the second clamping surface are the above-mentioned first and second sides of the clamping surfaces where the clip feeding component and the clip pushing component are respectively arranged.
  • the clip 10 when the clip 10 is installed in the clip box 220, the two clip arms of the clip 10 are pressed against the first side wall 222 and the second side wall 223 respectively and are compressed, but are not compressed to the closed state, the clip The plane is parallel to the bottom wall 221, and the clamping surfaces of the clips 10 are on the same plane.
  • a plurality of clips 10 may be arranged obliquely in the clip box 220, the clamping surfaces of the plurality of clips 10 are not on the same plane, but the clamping surfaces of the plurality of clips 10 are parallel to each other, and the clip feeding assembly and the pusher The clip assemblies are still disposed relative to each clamping surface on the first side and the second side of the clamping surface.
  • the cartridge 220 includes a lengthwise extending bottom wall 221 and opposing first and second side walls 222 and 223 to form a generally C-shaped structure.
  • the clamping surface of the clip 10 is parallel to the bottom wall 221; In this way, the clip feeding component and the clip pushing component push the first clip and other clips separately from both sides of the clip box 220, the space in the sleeve 210 and on both sides of the clip box 220 is fully utilized, and the clip pushing component and the clip feeding component are fully utilized.
  • the design freedom of the components is improved, and the clamp applier structure is more stable and compact.
  • the inner and outer sides of the bottom wall 221 refer to two sides of the plane where the bottom wall 221 is located, and the clip 10 , the first side wall 222 and the second side wall 223 are located on the inner side of the bottom wall 221 .
  • the bottom wall 221 of the cartridge 220 has an opening 224, the opening 224 is disposed near the distal end of the bottom wall 221, and the clip feeding assembly enters the cartridge 220 from the opening 224 and is located between the first clip and the second clip.
  • the opening 224 ensures that the clip feeding assembly can smoothly enter and exit the cartridge 220 and enter between the first clip and the second clip, so that the rear end of the first clip abuts the first clip to push it forward.
  • a portion of the opening 224 is located at the first station and another portion is located at the second station.
  • the clip feeding component includes an elastic push rod 232 and a clip feeding block 231 connected to one end of the elastic push rod 232.
  • the clip feeding block 231 is used to abut and push the first clip;
  • the base 240 is provided with a receiving and feeding clip assembly and a shaft for its shaft.
  • the channel for movement includes an axially extending guide groove 241 and a block groove 242 communicating with the guide groove 241.
  • the block groove 242 includes a guide inclined surface 243, and the guide inclined surface 243 is arranged at an angle to the axial direction.
  • the guiding inclined surface 243 faces the distal end and is inclined toward the cartridge 220, and the elastic push rod 232 is formed by stacking a plurality of metal sheets, which is elastic and can be bent.
  • the guide groove 241 accommodates the elastic push rod 232
  • the block groove 242 accommodates the clamp feeding block 231
  • the guide groove 241 guides the elastic push rod 232 to move in the axial direction, and guides the elastic push rod 232 to move in the axial direction.
  • the guiding slope 243 guides the clip feeding block 231 into the opening 224 .
  • the elastic push rod 232 moves axially forward along the guide groove 241
  • the elastic pushing rod 232 begins to bend, and the clip feeding block 231 moves along the guiding inclined surface.
  • 243 enters the opening 224 of the clip box 220 obliquely, so that the rear end of the first clip abuts the first clip to push it forward, and then the elastic push rod 232 moves axially backward along the guide groove 241 to drive the clip feeding block 231 is retracted from the opening 224 into the block groove 242 along the guide slope 243 .
  • the base 240 has strong rigidity, and its channel accommodates the clip feeding assembly, which ensures the stable and reliable arrangement of the clip feeding assembly in the clamping jaw at the initial moment.
  • the guide groove 241 provides a fixed channel for the elastic elastic push rod 232.
  • the movement space is limited to avoid excessive bending or even bending of the elastic push rod 232 when it moves, which is blocked in the sleeve 210 and affects the function of clip feeding.
  • the rigid guiding slope 243 ensures the stability of the movement of the clip feeding block 231 .
  • the bottom wall 221 of the cartridge 220 further includes a first bottom wall 221a located at the front end of the opening 224 and a second bottom wall 221b located at the rear end of the opening 224; when the base 240 is mounted on the cartridge 220, the guiding slope 243 is connected to the first bottom wall 221b.
  • the bottom walls 221a meet.
  • the guiding inclined surface 243 is directly connected with the first bottom wall 221a, and there is basically no gap, which can ensure that the clip feeding block 231 can smoothly enter the opening 224 without being blocked by accident.
  • the thickness of the clip feeding block 231 is greater than that of the elastic push rod 232 .
  • the elastic push rod 232 adopts a thin and elastic structure, which ensures that it can be bent along the guiding inclined surface 243, so that the clip feeding block 231 can move along the guiding inclined surface 243. If the thickness of the clip feeding block 231 is large, the strength of the clip feeding block 231 is high, and it is not easy to be deformed, and due to the large thickness, the clip feeding block 231 forms a first contact surface at the distal end that contacts the clip 10, and the first contact surface is formed at the distal end of the clip feeding block 231. An abutting surface has a larger area and can stably push the first clip.
  • the clip feeding block 231 and the elastic push rod 232 are independent parts, which can be optionally fixed by welding.
  • the clip feeding assembly further includes an axially extending clip feeding rod 233 .
  • One end of the clip feeding rod 233 is connected to the elastic push rod 232 , and the other end is connected to the operating assembly 300 .
  • the guide groove 241 accommodates the clip feeding rod 233 .
  • the operating assembly 300 drives the clip feeding rod 233 to move axially, so that the clip feeding rod 233 drives the elastic push rod 232 and the clip feeding block 231 to move together.
  • the clip feeding rod 233 is a cylindrical rod or a square rod or similar structure. Different from the elastic elastic push rod 232, the clamping feeding rod 233 has strong rigidity and is not easily deformed, which prevents the elastic push rod 232 from being easily in the guide groove when it moves axially.
  • the inner bending of 241 causes the block of the clip feeding assembly, which improves the stability of the movement of the clip feeding assembly.
  • the guide groove 241 of the base 240 also accommodates the clip feeding rod 233 and guides the clip feeding rod 233 to move along the axial direction.
  • the clip feeding rod 233 moves axially along the path planned by the guide groove 241 of the base 240 , which enhances the stability of the axial movement of the clip feeding rod 233 .
  • the push-clamp assembly is a push-clamp base 250, the push-clamp base 250 includes a push-clamp block 253, an elastic member 254, and a push-clamp rod 251, the push-clamp rod 251 is provided with a side cavity 252, and the side cavity 252 or the push-clamp block 253 is provided with a rotating shaft 255 , the push-clamp block 253 is rotatably installed into the side cavity 252 through the rotating shaft 255 .
  • the push-clamp block 253 includes an abutting end, which can abut and push the clip 10 forward. The abutting end is disposed at the distal end of the push-clamp block 253.
  • the elastic member 254 provides the push-clamp block 253 with a force to rotate toward the outside of the side cavity 252 , specifically, the abutment end of the push-clamp block 253 is inclined toward the clamp 10 .
  • a plurality of side cavities 252 are arranged on the push-clamp rod 251 at intervals, and each side cavity 252 is provided with an elastic member 254 and a push-clamp block 253.
  • the abutting ends of the plurality of push-clamp blocks 253 respectively abut and push one of the clamps 10 forward.
  • the push-clamp assembly retreats in the axial direction, the push-clamp blocks 253 are squeezed by the clamp 10 and move toward the side cavity 252 The inner rotation avoids the clip 10, thereby preventing the push-clamp block 253 from retreating with the clip 10 when retreating.
  • the push-clamp block 253 has a certain thickness, so that the abutting end of the push-clamp block 253 is a second abutting surface with a certain area, which ensures the stability of abutting with the clip 10 .
  • the abutting end can also be set as a concave portion, and the clamping arm of the clip 10 is just snapped into the concave portion, which further enhances the stability of the abutment.
  • the push-clip assembly is the push-clip distal end driving member in the present invention.
  • the first side wall 222 and the second side wall 223 of the clamp box 220 are respectively provided with protruding first and second clamp bars, and the upper and lower sides of the push clamp rod 251 of the push clamp seat 250 are respectively provided with first and second clamp bars.
  • the clamping strip and the second clamping strip are matched with the first clamping groove and the second clamping groove, so that the push-clamp base 250 is slidably installed into the clamp box 220 .
  • the operating assembly 300 further includes a fitting mechanism, the actuating member 330 is used to provide power to the feeding clip assembly and the pushing clip assembly, and the fitting mechanism includes a first fitting member, an intermediate member and a second fitting member, the said The first adapter drives the second adapter through the middle piece, the clip feeding component is linked with the first adapter, the push clip component is linked with the second adapter, and the movement direction of the first adapter is connected with the second adapter. The movement of the fittings is reversed.
  • the specific structure and movement process of the matching mechanism and the linking method between the matching mechanism and the clip feeding component and the clip pushing component are described in detail below, and the benefits are the same as those shown below, and will not be repeated here.
  • the transmission mechanism includes a clip feeding driving mechanism and a jaw driving mechanism.
  • the clip feeding driving mechanism is used to drive the clip 10 into the jaw assembly 100
  • the jaw driving mechanism is used to drive the jaw assembly 100 to move.
  • the transmission mechanism further includes a switching mechanism for selectively driving the clip feeding driving mechanism or the jaw driving mechanism; the transmission mechanism includes a first state and a second state, in the first state, the switching mechanism is separated from the jaw driving mechanism, and It is combined with the clip feeding driving mechanism to drive the clip feeding driving mechanism to move; in the second state, the switching mechanism is separated from the clip feeding driving mechanism, and is combined with the jaw driving mechanism to drive the jaw driving mechanism to move.
  • the jaw driving mechanism when the switching mechanism drives the clip feeding driving mechanism to move, the jaw driving mechanism is not driven and is in a static state.
  • the mouth driving mechanism is combined to drive the jaw driving mechanism to move, and energy is alternatively transmitted to the clip feeding driving mechanism or the jaw driving mechanism in the process, so the energy consumption is low, and the force required by the doctor to operate the actuating member 330 is correspondingly reduced. , the operation is more comfortable, so that the clamp applier can be better operated and the product experience can be improved.
  • the movement of the feeding drive mechanism and the jaw drive mechanism is independent and time-sharing, which can also prevent other problems caused by the linkage between the two, such as complex structure and complex motion relationship.
  • the switching mechanism includes a first clutch mechanism and a second clutch mechanism, the first clutch mechanism is connected with the second clutch mechanism, and when the switching mechanism moves under the action of the actuating member 330, the first clutch mechanism and the second clutch mechanism move together; In the first state, the first clutch mechanism is combined with the clip feeding driving mechanism to drive the clip feeding driving mechanism to move, and the second clutch mechanism is separated from the jaw driving mechanism; in the second state, the first clutch mechanism and the clip feeding driving mechanism are separated, The second clutch mechanism is combined with the jaw driving mechanism to drive the jaw driving mechanism to move.
  • the first clutch mechanism includes a first clutch member and a clutch switching mechanism; the first clutch member is connected with the clutch switching mechanism; in the first state, the first clutch member is combined with the clip feeding drive mechanism; in the second state, The first clutch is separated from the clip feeding drive mechanism.
  • the second clutch mechanism includes a second clutch member, and the second clutch member is connected to the first clutch mechanism.
  • the second clutch member is the distal end of the first clutch mechanism. Specifically, it is the distal end of the first clutch.
  • the distal end of the first clutch mechanism is its distal end surface; in the first state, the distal end surface of the first clutch mechanism is separated from the proximal end surface of the jaw driving mechanism, and in the second state , the distal end surface of the first clutch mechanism is combined with the proximal end surface of the jaw driving mechanism.
  • the distal end portion of the first clutch mechanism is a hook portion protruding from the distal end thereof, and the proximal end of the jaw driving mechanism is provided with a groove that matches the hook portion. , the hook portion is not inserted into the groove of the jaw driving mechanism, and in the second state, the hook portion is inserted into the groove of the jaw driving mechanism to push the jaw driving mechanism to move.
  • the clutch switching mechanism includes a moving part and a moving guide, and the moving part is connected with the first clutch; when the moving part is guided by the moving guide to move from the first position to the second position, the first clutch and the clip feeding drive mechanism are in a combined state. Switch to detached state.
  • the moving part is a guide post 490 connected with the first clutch part
  • the moving guide part is a guide rail provided in the housing 321, and the guide post 490 can move on the guide rail.
  • the head casing of the clamp applier includes a first head casing and a second head casing, the first head casing and the second head casing are arranged axially symmetrically, and the guide rails are alternatively arranged on the first head casing.
  • the guide rails are symmetrically arranged on the inner walls of the first head housing and the second head housing.
  • the guide rail includes a first guide surface 494 and a second guide surface 496 higher than the first guide surface 494; the guide post 490 is located on the first guide surface 494 in the first position, and is located on the second guide surface 496 in the second position .
  • the first guide surface 494 is smoothly connected with the second guide surface 496 through the inclined surface 498, so that the movement of the moving part is smoother.
  • the guide column 490 can follow the movement of the first clutch member to move on the guide rail.
  • the first clutch member and the clip feeding driving mechanism remain in a combined state.
  • the guide rails have different heights.
  • the moving member moves to the second guide surface 496 of the guide rail, it drives the first clutch member to move upward to separate from the clip feeding drive mechanism, and when the first clutch member is separated from the clip feeding drive mechanism, the first clutch member is separated from the clip feeding drive mechanism.
  • the distal end of a clutch mechanism engages with the proximal end of the jaw drive mechanism to move the jaw drive mechanism.
  • the clutch switching mechanism has a simple structure, no additional devices are required, and the internal space of the housing 321 is fully utilized, resulting in a compact structure; on the other hand, the power consumption is low, and the operation is smooth and labor-saving.
  • the switching mechanism has a switching mechanism body 500.
  • part of the first clutch mechanism is accommodated in the switching mechanism.
  • the switching mechanism body 500 includes a proximal end surface 502 , a distal end surface 508 , a first through hole 510 penetrating the proximal end surface 502 and the distal end surface 508 , and an upper arc through the upper end surface of the switching mechanism and the first through hole 510 .
  • the second clutch member is the distal end portion of the switching mechanism body 500 , and the distal end portion may be the distal end surface 508 as described above. In the first state, the distal end of the switching mechanism is spaced from the proximal end of the jaw driving mechanism; in the second state, the distal end of the switching mechanism is mated with the proximal end of the jaw driving mechanism.
  • the first clutch member includes a blocking block 482, which is accommodated in the second through hole 512.
  • the clip feeding drive mechanism includes a clip slot, and the clip block 482 cooperates with the clip slot to combine the first clutch member with the clip feeding driving mechanism.
  • the clamping block 482 includes a first end and a second end extending perpendicular to the longitudinal direction from the first end; the first end is connected with the guide post 490, and the second end is detachably connected with the clamping slot; the first clutch member also includes an elastic The element, such as a spring, in the first state, the elastic element exerts a downward force on the clamping block 482, so that the clamping block 482 abuts against the clamping groove, so that the first clutch can be well combined with the driving mechanism for feeding the clip, improving the The stability of the feeding action.
  • the clamping groove is a first annular groove 422 disposed on the outer peripheral surface of the proximal end of the clip feeding drive mechanism, and the second end of the clamping block 482 includes a connection with the first annular groove 422.
  • the first clutch member may also include a groove, and the clip feeding driving member includes a protrusion matched with the first clutch member.
  • the switching mechanism is sleeved on the driving mechanism for feeding clips.
  • the switching mechanism and the driving mechanism for jaws are arranged at intervals.
  • the driving mechanism for feeding clips is pushed forward.
  • the surface is gradually approached with the proximal end surface of the jaw driving mechanism;
  • the switching mechanism is separated from the clamping feeding driving mechanism, and is matched with the jaw driving mechanism to drive the jaw driving mechanism forward, and the proximal end of the jaw driving mechanism
  • the face is gradually separated from the proximal face of the clip feed drive mechanism.
  • the jaw driving mechanism is sleeved on the feeding driving mechanism, that is, the feeding driving mechanism
  • the mechanism part is located in the jaw driving mechanism, and can travel in the jaw driving mechanism; the clamping driving mechanism and jaw driving mechanism move in the longitudinal direction under the action of the switching mechanism, and the clamping driving mechanism is on a plane perpendicular to the longitudinal direction.
  • the projection is located inside the projection of the jaw drive mechanism on the plane, and the projection of the jaw drive mechanism on the plane is located inside the projection of the switch mechanism on the plane.
  • the actuating member 330 is used to provide power to the transmission mechanism. Specifically, the actuating member 330 is in contact with the switching mechanism, thereby driving the switching mechanism to move, and the switching mechanism selectively transmits the power to the clip feeding driving mechanism or the jaw driving mechanism mechanism; the proximal end of the switching mechanism has a driving surface 504 and a first stopper 506 , wherein the driving surface 504 abuts with the actuating member 330 to receive the power, and the first stopper 506 is used to limit the actuating member 330 .
  • the driving surface 504 is a concave surface formed by the first stop portion 506 and the surface of the switching mechanism, and the head of the actuating member 330 abuts against the concave surface.
  • the first stop parts 506 are symmetrically arranged on both sides of the proximal end of the switching mechanism in its traveling direction, and the actuating member 330 has a gripping portion correspondingly , and push claws extending from the grip portion to the inside of the housing and symmetrically arranged, the two push claws are respectively in contact with the driving surfaces 504 on both sides of the switching mechanism.
  • the first stopper 506 is protruded from the outer surface of the switching mechanism and extends in the longitudinal direction.
  • the inner walls of the first head housing and the second head housing of the clamp are symmetrically arranged in the shape of the first stopper 506 . With the matching guide groove, the first stop part 506 can move in the longitudinal direction in the guide groove, and the guide groove can limit the height direction of the first stop part 506, which can effectively reduce the switching mechanism during movement. Shaking, making the transmission more stable and reliable.
  • the clip applier also includes a clip feeding and retracting stop mechanism, which includes a biasing spring and a guide pivot member 350 .
  • the guide pivot member 350 includes a pivot end 352 pivotally connected to the housing 321 , a guide member 351 and a backstop end 354 extending outward from the pivot end 352 ; the guide member 351 is movably connected with the actuating member 330 to actuate The movement of the member 330 drives the guide member 351 and the stop end 354 to move around the pivot end 334 under the action of the biasing spring; in the first state, the stop end 354 gradually approaches the proximal end of the clip feeding drive mechanism; in the second state , the stop end 354 is in contact with the proximal end of the clip feeding drive mechanism to prevent the clip feeding drive mechanism from retreating.
  • the retracting stop end 354 of the clip feeding stop mechanism can move to the proximal end of the clip feeding drive mechanism and abut against the clip feeding drive mechanism to prevent the clip feeding drive mechanism from retreating.
  • the clip feeding and retracting mechanism cannot stand against the clip feeding driving mechanism, and the clip feeding and retracting mechanism can be separated before the switching mechanism and the clip feeding driving mechanism.
  • the stop end 354 has moved to the proximal end of the clip feed drive mechanism.
  • the clip feed drive mechanism retreats a short distance under the action of the first reset member 418 until it is connected to the clip feed stop mechanism.
  • the anti-retraction end 354 of the clip 10 abuts to prevent the clip feeding drive mechanism from retreating further to make the clip 10 retreat.
  • the elastic push rod 232 of the clip feeding driving mechanism has elasticity, it is compressed when the clip feeding driving mechanism moves forward. Therefore, the elastic push rod 232 gradually recovers during the retreat of the clip feeding driving mechanism for a short distance under the action of the first reset member 418 .
  • the clip feeding block 231 still presses against the clip 10, so the clip 10 will not retreat when the clip feeding driving mechanism retreats a short distance.
  • the actuating member 330 has a guiding channel 340, the guiding channel 340 includes a start point a, an end point c, and a locking point b between the start point a and the end point c; the distance from the start point a to the pivot center of the actuating member 330 and the end point c
  • the distance to the pivot center of the actuating member 330 is smaller than the distance from the locking point b to the pivot center of the actuating member 330; when the actuating member 330 rotates around its pivot center, the guide channel 340 rotates accordingly, so that the guide There is relative movement between the channel 340 and the guide member 351, and the guide member 351 can pass through the starting point a, the locking point b and the ending point c in sequence with the movement of the actuating member 330; in the first state, the guide member 351 gradually locks toward the locking point 351.
  • Point b moves relatively, and the stop end 354 gradually approaches the proximal end of the clip feeding drive mechanism; in the second state, when the guide member 351 relatively moves to the locking point b, the retreat stop end 354 abuts against the proximal end of the clip feeding drive mechanism. connected to prevent the clip feed drive mechanism from retreating.
  • the existence of the clip feeding and retracting mechanism can avoid the problem that the clip 10 in the jaw assembly 100 cannot be clamped due to the retraction of the clip 10, thereby improving the reliability and safety of the operation. A more detailed introduction to the actuating member 330 will be described later.
  • the jaw driving mechanism includes a jaw proximal driving member and a jaw distal driving member connected with the jaw proximal driving member.
  • the switching mechanism When the switching mechanism is in the second state, it drives the jaw proximal driving member to move, thereby driving the jaws
  • the distal drive moves.
  • the proximal driving member of the jaws is the jaw driving tube 432
  • the distal driving member of the jaws is the sleeve 210 .
  • One end of the sleeve 210 is connected with the jaw drive tube 432, and the other end is matched with the jaw assembly 100; in the second state, the switching mechanism is combined with the jaw drive tube 432 to drive the jaw drive tube 432 to move, thereby driving the sleeve 210 moves to drive jaw assembly 100 closed.
  • the inner wall of the distal end of the jaw driving tube 432 is provided with protruding ribs 436 at intervals, the adjacent protruding ribs 436 and the inner wall of the jaw driving tube 432 form a second annular groove 438, and the outer periphery of the proximal end of the sleeve 210 is provided with an annular sheet 442,
  • the annular sheet 442 is inserted into the second annular groove 438 , and the rib 436 abuts against the annular sheet 442 .
  • the annular plate 442 is provided with a notch 444 symmetrically in the circumferential direction, and the second annular groove 438 is internally provided with a protrusion 440 that is shaped to match with it.
  • the jaw drive mechanism also includes a second reset member 446, such as an elastic element.
  • the elastic element is sleeved on the outside of the jaw driving tube 432, one end is in contact with the baffle 434 on the outer surface of the jaw driving tube 432, and the other end extends forward and is in contact with the inner wall of the shell 321 of the clamp. The energy is stored when the jaw driving mechanism moves forward, and the elastic element recovers and deforms to release the energy to provide power for the jaw driving mechanism to return and retreat.
  • the driving mechanism for feeding clips includes a proximal driving member for feeding clips and a distal driving member for feeding clips connected with the proximal driving member for feeding clips; when the switching mechanism is in the first state, it drives the proximal driving member for feeding clips to move, and then drives the feeding clips at the proximal end.
  • the distal drive moves.
  • the distal end driving member for feeding the clip includes a base 240 and a feeding assembly, and a channel is provided in the base 240; in the first state, the switching mechanism is combined with the proximal driving member for feeding the clip to drive the proximal driving member for feeding the clip to move, and then The clip feed assembly is driven to move within the channel to drive the clip 10 into the jaw assembly 100 .
  • the distal end of the channel is provided with a guiding inclined surface 243, and the clip-feeding proximal driving member drives the clip-feeding assembly to move in the channel and move through the guiding inclined surface 243 to abut against the first clip in the clip box 220, In turn, the first clip is driven into the jaw assembly 100 .
  • the clip-feeding proximal driving member is the clip-feeding drive tube 402 , which is fixedly connected to the clip-feeding assembly.
  • the base 240 is located on the outside of the cartridge 220, its first end is fixedly connected with the housing 321, and is located in the clip feeding drive tube 402, the second end extends from the first end to the distal end, and the second end is connected with the pin 316 through the pin 316.
  • the tabs on the outer side of the cartridge 220 are fixedly connected.
  • the clip feeding assembly includes a clip feeding rod 233, an elastic push rod 232 and a clip feeding block 231 which are connected in sequence.
  • the hole 404 is used to accommodate the bent portion 406 of the clip feeding rod 233.
  • the bent portion 406 of the proximal end of the clip feeding rod 233 passes through the proximal end of the channel of the base 240 and is installed on the distal end of the clip feeding drive tube 402.
  • the distal end of the clip feeding rod 233 has an accommodating groove 408
  • the proximal end of the elastic push rod 232 has a clamping portion 410 that is shaped to match with the accommodating groove 408 , and the clamping portion 410 is inserted into the accommodating groove 408 to realize elastic pushing
  • the connection between the rod 232 and the clip feeding rod 233; the distal end of the elastic push rod 232 has an arc-shaped depression 412, and the lug 414 at the proximal end of the clamping block 231 cooperates with the arc-shaped depression 412 to realize the elastic push rod 232 Connection with clip feed block 231.
  • the channel of the base 240 provides a space for accommodating the clip feeding assembly on the one hand, and also facilitates the movement of the clip feeding assembly in the channel on the other hand.
  • the clip feeding driving tube 402 drives the clip feeding block 231 to move in the channel and moves through the guiding inclined surface 243 to abut with the clip 10 , thereby driving the clip 10 to enter the jaw assembly 100 .
  • two or more elastic push rods 232 are provided, and each elastic push rod 232 is formed by stacking multiple pieces.
  • the elastic push rod 232 itself has elasticity and can be deformed and bent, so that the clip feeding block 231 can send the clip 10 to the position.
  • the clip feeding driving mechanism further includes a first restoring member 418, such as an elastic element.
  • a first restoring member 418 such as an elastic element.
  • One end of the elastic element is in contact with the inner wall of the jaw driving tube 432 close to the rib 436 of the driving tube 402 for feeding the clip, and the other end extends backwards and is in contact with the distal end surface of the driving tube 402 for feeding the clip.
  • the clip applier also includes a knob 310, wherein the proximal end of the knob 310 has a protruding portion 312, and the distal end of the operating assembly 300 is provided with a concave portion that is shaped to match the protruding portion 312, and the concave portion and the protruding portion 312 cooperate with each other so that the The knob 310 is assembled with the operating assembly 300 .
  • the knob 310 is provided with a pin 316
  • the clip feeding driving tube 402 is provided with a first waist-shaped hole 420
  • the jaw driving tube 432 is provided with a second waist-shaped hole 448 .
  • the proximal end of the base 240 is accommodated in the clip feeding drive tube 402 , and is provided with a first pin hole 416 .
  • the cooperation of the pin 316 and the first pin hole 416 enables the base 240 to be fixedly installed with the knob 310 .
  • the proximal end of the cartridge 220 is also accommodated in the clip feeding drive tube 402 , and is provided with a second pin hole. The engagement of the pin 316 and the second pin hole enables the cartridge 220 to be fixedly installed with the knob 310 .
  • One end of the pin 316 is installed at the first part of the side wall of the knob 310, and the other end is installed on the side wall of the knob 310 after passing through the second waist hole 448, the first pin hole 416, the second pin hole and the first waist hole 420.
  • the other place is symmetrical with the first place, so that when the knob 310 is rotated, it can drive the jaw driving tube 432, the clamping driving tube 402, the base 240 and the clamping box 220 to rotate together, and then can drive the sleeve 210, jaws
  • the assembly 100 and the clip feeding assembly are rotated together, so that the doctor can adjust the appropriate angle to clamp the blood vessel or tissue.
  • the knob 310 drives the clip feeding drive mechanism and the jaw drive mechanism to rotate 360 degrees. In order to increase the feel of the doctor turning the knob 310, and at the same time, the knob 310 can be stopped at the current position after being rotated at any angle, so as to facilitate the operation of the doctor.
  • a damping member 318 is provided at the connection of the handle assembly. More specifically, a groove 314 is provided on the outer periphery of the protruding portion 312 at the proximal end of the knob 310.
  • the concave portion abuts.
  • the friction force between the damping member 318 and the handle assembly is used to increase the force for rotating the knob 310, and the damping member 318 can stop at the current position after the rotation at any angle is stopped.
  • the damping member 318 is a rubber ring.
  • the proximal end of the drive tube 432 is close; when the actuating member 330 moves to the middle position, the moving member of the switching mechanism runs to the second guide surface 496 in the housing 321, and the clamping block 482 is disengaged from the clamping groove of the clip feeding drive tube 402 , the switching mechanism is separated from the clip feeding drive mechanism, the forward stroke of the clip feeding driving mechanism ends, the clip 10 located at the farthest end of the clip box 220 is sent into the jaw assembly 100 (the clip feeding action is completed), the distal end surface of the switching mechanism and the The proximal end face of the jaw drive mechanism abuts.
  • the retracting stop end 354 of the clip feeding and retracting mechanism can abut against the clip feeding driving tube 402 after the switching mechanism is separated from the clip feeding driving mechanism to prevent the clip 10 in the jaw assembly 100 from being retracted due to the retracting of the feeding clip driving mechanism.
  • the actuating member 330 moves from the intermediate position to the closed position, and the clip feeding and retracting mechanism gradually separates from the clip feeding driving tube 402; the switching mechanism pushes the jaw driving mechanism forward under the action of the actuating member 330,
  • the mouth driving tube 432 drives the sleeve 210 forward to close the jaw assembly 100.
  • the actuating member 330 moves from the open position to the middle position, when the guide member 351 of the clip feeding and retracting mechanism relatively moves to the locking point b in the guide channel 340 of the actuating member 330, the actuating member 330 is unidirectional Locking, that is, the actuating member 330 can only move towards the closed position under the action of external force, but cannot move towards the open position, so that the doctor can clearly know that the clip feeding action has been completed, and on the other hand, operate the clip applier to complete the clip feeding.
  • the action instead of holding down the actuating member 330 all the time, it is possible to stop to locate the blood vessel or tissue and then continue to operate the actuating member 330 to perform the jaw closing action.
  • the transmission mechanism further includes a push-clamp drive mechanism; the transmission mechanism further includes a third state, and the transmission mechanism alternatively has a first state and a third state; in the first state, the clamp-feeding drive mechanism drives the clamp box 220, the most distal clip 10 moves forward into the jaw assembly 100; in the third state, the push-clamp driving mechanism drives the remaining clips 10 in the cartridge 220 to move forward by one station.
  • the most distal clip 10 refers to the aforementioned "first clip”
  • the remaining clips 10 refers to the aforementioned "other clips”.
  • the clip applier can not only apply the clip continuously, but also because the first state and the third state are at different times, the clip-feeding driving mechanism performs the clip-feeding action asynchronously with the clip-pushing driving mechanism performing the clip-pushing action, which can effectively The problem of interference between the clip feeding action and the clip pushing action can be avoided.
  • the clip feeding driving mechanism and the clip pushing driving mechanism are independent driving mechanisms, the design space is increased, and the structures of the clip feeding driving mechanism and the clip pushing driving mechanism are stable and reliable. Therefore, using the technical solution of this embodiment to perform the clip feeding and pushing operations is more stable and reliable, and the safety of the clip applying forceps is improved.
  • the transmission mechanism includes a driving member and a matching mechanism; the driving member is in contact with the actuating member 330 to receive power, and the matching mechanism is connected with the driving member at one point, and is connected with the push-clamp driving mechanism at the other position. There is a distance between one part of the connection mechanism and the other part.
  • the driving part is used to drive the clip feeding driving mechanism forward to push the most distal clip 10 of the clip box 220 to move forward into the jaw assembly 100, and is also used to drive the matching mechanism to move to drive the push clip driving mechanism to move backward to store energy;
  • the push-clamp drive mechanism includes a third reset member 456 for storing the energy; releasing the energy, the push-clip drive mechanism advances under the action of the third reset member 456 to remove the remaining energy in the cartridge 220 The clamp 10 moves forward by one station.
  • the driving member is the above-mentioned switching mechanism for selectively driving the clip feeding driving mechanism or the jaw driving mechanism.
  • the driving member In the first state, the driving member is separated from the jaw driving mechanism, and is combined with the clip feeding driving mechanism to drive the clip feeding driving mechanism forward, and at the same time drive the matching mechanism to move to drive the pushing clip driving mechanism to retreat to store the first energy; In the second state, the driving member is combined with the jaw driving assembly to drive the jaw driving mechanism forward, and is separated from the clip feeding driving mechanism, and at the same time drives the matching mechanism to move to drive the push clip driving mechanism to retreat to store the second energy; the first An energy and the second energy together constitute the above energy.
  • the push-clamp driving mechanism advances under the action of the energy to move the remaining clamps 10 in the clamp box 220 forward by one station.
  • the push-clamp driving mechanism is connected with the switching mechanism through the matching mechanism, and the push-clamp driving mechanism and the switching mechanism move in opposite directions; under the action of the actuating member 330, the switching mechanism is first separated from the jaw driving mechanism, and is separated from the feeding mechanism.
  • the clip driving mechanism is combined to drive the clip feeding driving mechanism forward to perform the clip feeding action, and then separate from the clip feeding driving mechanism, and is combined with the jaw driving mechanism to drive the jaw driving mechanism forward to perform the jaw closing action.
  • the matching mechanism is simultaneously driven to move to drive the push clip mechanism to retreat and store energy; Move forward to perform the push-clamp action. How the switching mechanism realizes the combination and separation of the clip feeding driving mechanism and the jaw driving mechanism has been introduced in the above description, and will not be repeated here.
  • the driving member does not have a clutch function
  • the driving member is respectively connected with the clip feeding driving mechanism and the clip pushing driving mechanism
  • the actuating member 330 includes a first actuating member and a second actuating member
  • the first actuating member is The second actuating member abuts against the jaw driving mechanism.
  • the driving member drives the clip feeding driving mechanism forward to move the most distal clip 10 of the cartridge 220 forward into the jaw assembly 100, and at the same time drives the matching mechanism to move to move forward.
  • the push-clamp drive mechanism is driven backward to store energy; the push-clamp drive mechanism includes a third reset member 456 for storing the energy.
  • the first actuating member 330 is released, and the push-clamp driving mechanism advances under the action of the third reset member 456 to move the remaining clamps 10 in the cartridge 220 forward by one station.
  • pressing the second actuator drives the jaw drive assembly to close the jaw assembly 100 .
  • the first actuating member makes the push-clamp driving mechanism move forward under the action of the third reset member 456 to move the remaining clamps 10 in the cartridge 220 forward by one station.
  • the jaw driving mechanism is sleeved on the clamping feeding driving mechanism.
  • the proximal end surface of the clamping feeding driving mechanism and the proximal end surface of the jaw driving mechanism are gradually approached, and the distal end surface of the driving member is close to the jaw driving mechanism.
  • the proximal end surface is gradually approached; in the second state, the proximal end surface of the jaw driving mechanism and the proximal end surface of the clip feeding driving mechanism are gradually separated, and the distal end surface of the driving member is in contact with the proximal end surface of the jaw driving mechanism.
  • the matching mechanism includes a first matching piece, a middle piece and a second matching piece, the first matching piece is connected with the above-mentioned driving piece, and the second matching piece is connected with the push-clamp driving mechanism; the first matching piece passes through the middle
  • the second matching piece drives the second matching piece, and the movement direction of the second matching piece is opposite to that of the second matching piece; the driving piece drives the first matching piece forward; when the first matching piece advances, the second matching piece retreats to drive the push clip driving mechanism back.
  • the push-clamp drive mechanism further includes a push-clip drive.
  • the push clip driving member is connected with the matching mechanism and the third reset member 456. Specifically, one end of the third reset member 456 is connected with the housing 321, and the other end is connected with the proximal end of the second matching member. Of course, it can be understood that the third reset member 456 can also be directly connected with the push clip driving member.
  • the push-clamp driving member is connected with the distal end of the second fitting member.
  • the push-clamp driving member is provided with a plurality of side cavities 252 at intervals along the longitudinal direction. Each side cavity 252 is correspondingly installed with a push-clamp block 253.
  • the push-clamp block 253 is driven to move so as to move the remaining clamps 10 in the clamp box 220 forward by one station.
  • the push-clamp driving member includes a push-clamp proximal-end driving member and a push-clamp distal-end driving member, and the push-clamp distal-end driving member here is the aforementioned push-clamp assembly or push-clamp base 250 .
  • the third reset member 456 can be an elastic element, such as a spring.
  • the proximal driving member of the push clip is an adapter block 452
  • the distal driver of the push clip includes a push rod 251 and a push clip block 253
  • the proximal end of the adapter block 452 is connected to the distal end of the second adapter member.
  • the distal end of the fitting block 452 is connected with the push-clamp rod 251 .
  • a plurality of side cavities 252 are provided at equal intervals along the shaft direction of the push-clamp rod 251 , and each side cavity 252 is correspondingly installed with a push-clamp block 253 , which may be unequally spaced.
  • Each push-clamp block 253 is deflectably disposed in the corresponding side cavity 252 of the push-clamp rod 251 through an elastic member 254 (eg, a spring).
  • an elastic member 254 eg, a spring
  • the proximal end of the push clamp block 253 is installed in the pin holes 404 of the upper and lower walls of the side cavity 252 through the rotating shaft 255, and the elastic member 254 is arranged in the side cavity 252, and its proximal end is connected with the proximal end of the side cavity 252, and the distal end is connected with the pusher
  • the clamp block 253 is attached proximally.
  • the distal end of the push-clamp block 253 is inclined downward along the shaft deviating from the push-clamp rod 251 under the action of the elastic member 254 .
  • the push-clamp block 253 retreats with the push-clamp rod 251, the push-clamp block 253 is turned upward by the clamp 10 around the rotating shaft 255 toward the shaft of the push-clamp rod 251 with an upward force, so when the push-clamp rod 251 retreats , the push clamp block 253 will not interfere with the clamp 10 .
  • each push-clamp block 253 moves to abut against the tail of the clip 10 adjacent to its proximal end or moves to a predetermined distance behind the clip 10 adjacent to its proximal end, in the third state , the push-clamp rod 251 drives the push-clamp block 253 forward.
  • the push-clamp block 253 moves forward, it pushes the remaining clamps 10 in the clamp box 220 to advance to one station to prepare for the next clamp feeding.
  • the clip feeding proximal drive is sleeved on the push clip proximal drive
  • the distal end driving member for feeding the clip and the distal end driving member for pushing the clip are located on both sides of the clip box 220 .
  • the jaw driving mechanism includes a jaw driving tube 432 and a sleeve 210 connected to the jaw driving tube 432.
  • the jaw driving tube 432 drives the sleeve 210 to move, thereby driving the jaw assembly 100 to move;
  • the clamping drive mechanism It includes a clip feeding driving tube 402 and a clip feeding assembly connected with the clip feeding driving tube 402 .
  • the driving mechanism for feeding the clamping, the driving mechanism for the jaws and the driving mechanism for pushing the clamps are arranged in the longitudinal direction.
  • the projection of the clamp feed drive tube 402 on a plane perpendicular to the longitudinal direction is located in the projection of the jaw drive tube 432 on this plane, and the clamp feed drive mechanism can move in the longitudinal direction within the jaw drive mechanism, and the jaw drive tube 432 is in the vertical direction.
  • the projection of the plane in the longitudinal direction is located in the projection of the driving member (that is, the switching mechanism) on the plane; the projection of the plane of the push-clamp proximal driving member is located in the projection of the clip-feeding drive tube 402 on the plane, and the push-clamp driving mechanism can Moving along the longitudinal direction in the clip feeding driving mechanism, the distal end driving member for pushing the clip and the clip feeding assembly are located on both sides of the clip box 220 .
  • the proximal driving member for feeding the clip the proximal driving member for pushing the clip and the jaw driving tube 432 are coaxial.
  • the clip feeding driving tube 402 is located in the jaw driving tube 432, and the proximal end of the pushing clip driving member is located in the clip feeding driving tube 402, and can move in the clip feeding driving tube 402.
  • the fitting block 452 is close to the The end is located in the clip feeding drive tube 402 , and the clip push rod 251 and the clip feeding assembly are located on both sides of the clip box 220 .
  • the structure, location, etc. of the cartridge 220 can be referred to above, and details are not repeated here.
  • the clamping forceps includes a knob 310, and a pin 316 is arranged in the knob 310.
  • One end of the pin 316 is installed at the first part of the side wall of the knob 310, and the other end passes through the proximal driving member of the jaw driving mechanism,
  • the proximal driving member, the base 240 and the clip box 220 of the clip feeding driving mechanism are installed at another position on the side wall of the knob 310 that is symmetrical with the first position; the proximal driving member of the jaw driving mechanism is provided with a second
  • the waist-shaped hole 448 and the proximal driving member of the clip feeding driving mechanism are provided with a first waist-shaped hole 420 , the base 240 is provided with a first pin hole 416 , and the clip box 220 is provided with a second pin hole.
  • the proximal drive member of the push-clip drive mechanism is provided with a third waist-shaped hole 458 for accommodating the pin 316 , and one end of the pin 316 is mounted on the first side wall of the knob 310 .
  • the other end passes through the first waist-shaped hole 420, the second waist-shaped hole 448, the first pin hole 416, the second pin hole and the third waist-shaped hole 458, and is installed on the side wall of the knob 310 and the first place
  • the jaw driving mechanism, the clip feeding driving mechanism, the clip box 220 and the clip pushing driving mechanism can all rotate together with the knob 310 .
  • the driving member ie, the switching mechanism
  • the proximal end of the clip-feeding drive tube 402 and the distal end of the drive member gradually approach the proximal end of the jaw drive tube 432;
  • the moving member 330 moves to the middle position, the moving member of the driving member runs to the second guide surface 496 in the housing 321, the clamping block 482 is separated from the clamping groove of the driving tube 402 for feeding the clip, and the driving member is separated from the driving mechanism for feeding the clip.
  • the forward stroke of the driving mechanism for feeding the clip ends, and the clip 10 located at the farthest end of the clip box 220 is sent into the jaw assembly 100 (the clip feeding operation is completed), and the distal end surface of the driving member is in contact with the proximal end surface of the jaw driving mechanism.
  • the retraction stop end 354 of the clip feeding and retracting mechanism can abut against the clip feeding driving tube 402 after the driving member is separated from the clip feeding driving mechanism to prevent the clip 10 in the jaw assembly 100 from being retracted due to the retracting of the clip feeding driving mechanism.
  • the 330 moves to the closed position, the forward stroke of the jaw driving mechanism is completed (the jaw closing action is completed), the energy storage of the third reset member 456 is completed, and the clamping feeding and retracting mechanism is completely separated from the clamping feeding driving pipe 402, and the clamping driving pipe 402 is in The first reset member 418 is reset under the action of the first reset member 418 .
  • the actuating member 330 is released, the jaw driving mechanism is reset under the action of the second reset member 446, and the push-clamp driving mechanism is advanced under the action of the third reset member 456 to move the remaining clips 10 in the cartridge 220 forward by one station (Push clip action completed).
  • the matching mechanism includes a first matching piece, a middle piece and a second matching piece, the first matching piece drives the second matching piece through the middle piece; the firing driving mechanism is linked with the first matching piece; the continuous firing driving mechanism It is linked with the second adapter; the movement direction of the first adapter is opposite to the movement direction of the second adapter, wherein the firing drive mechanism includes the above-mentioned clip feeding driving mechanism and jaw driving mechanism, which are used to complete the clip feeding.
  • Action and clamping action jaw closing action
  • the burst driving mechanism is the above-mentioned push-clamp drive mechanism, which is used to complete the push-clamp action.
  • the linkage here refers to the connection of two moving parts, which move in the same direction and move synchronously.
  • the clip feeding drive mechanism and the clip pushing drive mechanism are independent driving mechanisms, which increases the design space and can realize more reliable and stable execution of the clip feeding and pushing action.
  • the asynchronous action can effectively avoid the interference problem of the clip feeding action and the clip pushing action, thereby effectively improving the safety and reliability of the clip applier.
  • the firing driving mechanism is linked with the first fitting through a switching mechanism, and the switching mechanism is used to selectively drive the clip feeding driving mechanism and the jaw driving mechanism; specifically, the proximal end of the switching mechanism is fixedly connected with the first fitting,
  • the switching mechanism is detachably connected to the firing drive mechanism. Press the above-mentioned actuating member 330, and under the action of the actuating member 330, the switching mechanism first drives the clip feeding driving mechanism forward to perform the clip feeding action and then drives the jaw driving mechanism forward to perform the clip application action, and simultaneously drives the first adapter.
  • the burst driving mechanism includes a third reset member 456, which is used to store the energy; release the actuating member 330, and the burst driving mechanism is in the third reset member 456. 456 moves forward to perform a push-clamp action.
  • the structure, positional relationship, connection relationship, etc. of the switching mechanism, the clip feeding driving mechanism, the jaw driving mechanism and the clip pushing driving mechanism are all the same as those described above, and will not be repeated here.
  • the first adapter includes an upper rack 462, the second adapter includes a lower rack 468, and the middle element includes a first gear 464 and a second gear 466; the upper rack 462 meshes with the first gear 464, and the lower rack 468 Meshing with the second gear 466, the first gear 464 is coaxially arranged with the second gear 466, the diameter of the first gear 464 is larger than the diameter of the second gear 466, that is, the firing drive mechanism is connected with the upper rack 462 through the switching mechanism , the burst driving mechanism is connected with the lower rack 468, and the moving directions of the upper rack 462 and the lower rack 468 are opposite, when the upper rack 462 moves a first distance in the first direction, the lower rack 468 moves in the first direction
  • the opposite direction moves a second distance, that is, when the firing driving mechanism moves a first distance in a first direction, the burst driving mechanism moves a second distance in a second direction opposite to the first direction, and the first distance is greater than the second distance .
  • the first direction is the forward direction of the clip feeding driving mechanism and the jaw driving mechanism.
  • the distance of retreat is equal to the distance of its advance
  • the distance of advance is equal to the distance that the clip 10 in the cartridge 220 is moved forward by one station
  • the second distance of retreat is less than the first distance of the firing drive mechanism, and the clip 10 in the cartridge 220 is moved forward by one station. It can be arranged as close as possible, that is to say, more clips 10 can be accommodated in the clip box 220, and the number of times of continuous clip application can be increased, so as to meet the surgical requirements of doctors.
  • the first matching member and the second matching member are arranged in the longitudinal direction, and the middle member is arranged between the first matching member and the second matching member, and is arranged along the longitudinal direction. Orientation setting perpendicular to the portrait orientation.
  • the continuous-fire driving mechanism and the second fitting are moved in the longitudinal direction in the clip-feeding driving mechanism.
  • the axis of the first fitting is perpendicular to the axis of the intermediate piece and is parallel to the axis of the second fitting; the axis of the second fitting is the same as the axis of the proximal driving member (the fitting block 452 ) of the continuous driving mechanism.
  • the axes of the proximal drives of the firing drive mechanism (clamp drive tube 402 and jaw drive tube 432) are coaxial.
  • a first guide groove 472 and a second guide groove 474 are provided in the housing 321 , and the first fitting is in the first guide groove. 472 , the second fitting moves in the second guide groove 474 .
  • the burst driving mechanism includes a push-clamp drive member and a third reset member 456, the push-clip drive member is connected to the distal end of the second fitting member; the push-clip drive member is provided with a plurality of side cavities 252 at intervals along the longitudinal direction , each side cavity 252 is correspondingly installed with a push-clamp block 253 , and the push-clamp driving member moves under the action of the third reset member 456 to make the push-clamp block 253 move to perform the push-clamp action.
  • the third reset member 456 stores energy when the continuous-fire driving mechanism retreats.
  • the third reset member 456 of the continuous-fire driving mechanism is located in the second guide groove 474, and one end is connected to the second guide groove 474.
  • the proximal end of the fitting is connected, and the other end is connected with the housing 321 located at the proximal end of the second guide groove 474 .
  • the distal end of the second adapter has an accommodating space.
  • the accommodating space has an opening, and the push The proximal end of the clip driver is accommodated in the accommodating space through the opening, and can be rotated in the accommodating space; the proximal end of the push clip driver has a second stop portion 454, which is connected to a limiting surface 470 in the accommodating space. abutting, so that the continuous-fire driving mechanism is axially fixed with the distal end of the second fitting.
  • the proximal end of the clip driving tube 402 and the distal end of the switching mechanism gradually approach the proximal end of the jaw driving tube 432; when the actuating member 330 moves to the middle position, the moving member of the switching mechanism runs to the second position in the housing 321
  • the block 482 of the switching mechanism is disengaged from the slot of the clip feeding drive tube 402
  • the switching mechanism is separated from the clip feeding drive mechanism, and the forward stroke of the clip feeding drive mechanism is completed (the clip feeding operation is completed).
  • the retraction stop end 354 of the clip feeding and retracting mechanism can abut against the clip feeding driving tube 402 after the switching mechanism is separated from the clip feeding driving mechanism to prevent the clip 10 in the jaw assembly 100 from retreating due to the retracting of the clip feeding driving mechanism.
  • the third reset member 456 continues to store energy, the jaw drive tube 432 drives the sleeve 210 forward to close the jaw assembly 100 (the clamping action is completed), the third reset member 456 is finished with energy storage, and the clamping mechanism is completely disengaged from the feeding mechanism.
  • the clip driving tube 402 and the clip feeding driving tube 402 are reset under the action of the first reset member 418 .
  • the actuating member 330 is released, the jaw drive mechanism is reset under the action of the second reset member 446, and the push-clamp drive mechanism is advanced under the action of the third reset member 456 to move the remaining clips 10 in the cartridge 220 forward by one work. position (the push-clamp action is completed).
  • the clip feeding drive mechanism is used to drive the most distal clips 10 of the clip box 220 to move forward into the jaw assembly 100, and the clip push drive mechanism is used to drive the remaining clips 10 in the clip box 220 to move forward by one working process.
  • the driving mechanism for feeding the clip includes a proximal driving member for feeding the clip and a distal driving member for feeding the clip connected with the proximal driving member for the clip
  • the driving mechanism for pushing the clip includes a proximal driving member for pushing the clip and a driving member connecting with the proximal driving member for the pushing clip
  • the movement track of the clip-feeding proximal-end driver is parallel to the movement track of the clip-pushing proximal-end driver, and the movement track of the clip-feeding distal-end driver intersects with the movement track of the clip-pushing distal-end driver.
  • Different driving mechanisms are used to perform the clip feeding and pushing actions respectively, which increases the design space, and can realize more reliable and stable execution of the clip feeding and pushing actions, and the feeding action is performed earlier than the pushing action.
  • the actions of the users are not synchronized and will not interfere with each other, thereby effectively improving the safety and reliability of the clamp.
  • the motion trajectory refers to the motion trajectory formed during the movement of each point on the component.
  • the motion trajectory of component A and the motion trajectory of component B are both straight lines, if the motion trajectory of component A is in the If at least one straight line is collinear with at least one straight line in the motion trajectory of element B, the motion trajectory of element A and the motion trajectory of element B are said to be "coaxial”; if all the straight lines in the motion trajectory of element A are coaxial with the motion trajectory of element B All straight lines are parallel, then the motion trajectory of element A is said to be "parallel" to the motion trajectory of element B.
  • the movement trajectory of the component refers to the movement trajectory formed in one execution cycle.
  • the proximal driving member for pushing the clip is movably located in the proximal driving member for feeding the clip, and the distal driving member for feeding the clip and the distal driving member for pushing the clip are located on both sides of the clip box 220.
  • the distal drive is located on the side of the cartridge 220 that accommodates the clip 10 (inside the cartridge 220 ), and the distal drive for feeding the clip is located on the side of the cartridge 220 that does not accommodate the clip 10 (outside the cartridge 220 ).
  • the proximal driving member for feeding clips advances in the longitudinal direction, and drives the distal driving member for feeding clips to move from the outside of the clip box 220 to the plane where the clip 10 is located and abut against the clip 10 at the farthest end of the clip box 220, and further
  • the clip feeding proximal driving member drives the clip feeding distal driving member to return to the initial position along the original path.
  • the proximal drive member of the push clip retreats in the longitudinal direction, and drives the distal end drive member of the push clip to retreat.
  • the distal end of the push clip 220 moves from the position abutting against the corresponding clip 10 toward the inner side of the clip box 220 . Move away from the bottom wall 221 of the cartridge 220 to the rear of the clip 10 adjacent its proximal end.
  • the proximal drive member of the push clip is advanced in the longitudinal direction, the distal drive member of the push clip is driven to advance to push the remaining clips 10 in the cartridge 220 forward by one station.
  • the movement trajectory of the distal drive of the clip feed intersects with the movement trajectory of the distal driver of the push clip, wherein the intersection of the movement trajectory of the component includes the intersection of the component movement trajectory itself, and also includes the extension of the component movement trajectory
  • the lines intersect, and the movement track of the proximal drive member for feeding the clip is parallel to the movement track of the proximal driving member for pushing the clip.
  • the clip-feeding proximal-end driving member is sleeved on the clip-pushing proximal-end driving member, so that the structure of the transmission mechanism is more compact and the space is fully utilized.
  • the clip feeding driving mechanism and the clip pushing driving mechanism can move in the jaw driving mechanism.
  • the jaw driving mechanism advances or retreats in the longitudinal direction, and its movement track is parallel to the movement track of the proximal drive member of the clip feeding or the movement track of the proximal driving member of the push clip, and is parallel to the movement track of the distal end driving member of the clip feeding or with the pusher.
  • the motion trajectories of the distal driver of the clip intersect.
  • the jaw drive mechanism includes a jaw drive tube 432 and a sleeve 210 connected to it.
  • the jaw drive tube 432 drives the sleeve 210 to move to close the jaw assembly 100 , and the movement track of the jaw drive tube 432 is the same as the movement track of the sleeve 210 Together they form the motion trajectory of the jaw drive mechanism.
  • Such a design makes the transmission mechanism reasonable in layout and compact in structure.
  • the clip-feeding proximal driving member includes a clip-feeding driving tube 402, and the clip-feeding distal-end driving member includes a clip-feeding block 231; the clip-feeding block 231 is used to drive the clip 10 into the jaw assembly 100; Connecting block 452, the distal end driving member of the push clip includes a push clamp block 253, and the push clamp block 253 is used to drive the remaining clamps 10 in the clamp box 220 to move forward by one station;
  • the movement track of the clamp is parallel to the movement track of the jaw drive mechanism, and the movement track of the clip feeding block 231 intersects with the movement track of the push clamp block 253 and the movement track of the jaw drive mechanism.
  • the adapter block 452 is partially located in the clip feeding drive tube 402 and can move in the longitudinal direction in the clip feeding drive tube 402.
  • the proximal end of the clip feeding drive tube 402 is located in the jaw driving tube 432, which can Moves in the longitudinal direction within the jaw drive tube 432 .
  • the clip feeding block 231 is connected with the clip feeding drive tube 402 through the clip feeding rod 233;
  • the clip feeding driving mechanism further includes a base 240 fixed with the casing 321, and the base 240 is slidingly matched with the clip feeding rod 233; the distal end of the base 240
  • a guide slope 243 is provided for guiding the clip feeding block 231 to push out from the base 240 to drive the most distal clip 10 of the clip box 220; the movement trajectory of the clip feeding rod 233 is parallel to the movement trajectory of the jaw driving mechanism.
  • the push-clamp block 253 is connected to the matching block 452 through the push-clamp rod 251 , a plurality of side cavities 252 are arranged along the shaft direction of the push-clamp rod 251 , and each side cavity 252 is correspondingly installed with a push-clamp block 253 ; the push-clamp rod
  • the movement track of 251 is parallel to the movement track of the jaw drive mechanism. This design makes the layout of the whole machine reasonable and the space fully utilized.
  • FIGS. 23A and 23B are schematic diagrams of the movement process of the clip-feeding block 231 and a schematic diagram of its motion track when the clip-feeding drive mechanism advances; It can be seen from the foregoing that the clip feeding block 231 moves to the guiding slope 243 at the distal end of the base 240 on the first plane where the base 240 is located, and then moves along the guiding slope 243 to the second plane where the clip 10 is located and the clip box 220 The farthest clip 10 abuts, and its movement process is shown in FIG.
  • FIG. 23A from which a schematic diagram of the movement track formed by any point on it can be obtained as shown in FIG. 23B .
  • FIG. 24A and FIG. 24B it is a schematic diagram of a movement process and a movement trajectory of the push-clamp block 253 when the push-clamp driving mechanism is retracted.
  • the push-clamp block 253 follows the push-clamp drive mechanism to retreat, and when it retreats to the clip 10 adjacent to its proximal end, the distal end of the push-clamp block 253 is turned upward by the clip 10 with an upward force around the rotating shaft 255,
  • the distal end of the push clamp block 253 flips down to the original position under the action of the spring, and its movement process is shown in FIG. 24A . , from which the movement trajectory of the push-clamp block 253 can be obtained.
  • FIG. 24B the schematic diagram of the movement trajectory formed by the push-clamp block 253 is shown in FIG. 24B . It should be noted. This is just a schematic indication. According to the actual specific design, its motion trajectory will also be adjusted, such as the radian of the curve. It can be seen from this that during the movement of the transmission mechanism, the movement track of the clip feeding block 231 intersects with the movement track of the push clip block 253 .
  • the transmission mechanism also includes a switching mechanism and a matching mechanism.
  • the switching mechanism is used to selectively drive the clip feeding driving mechanism or the jaw driving mechanism;
  • the matching mechanism is connected with the switching mechanism at one point, and is connected with the push-clamp driving mechanism at the other. There is a distance between the one and the other; under the action of the actuating member 330, the switching mechanism successively drives the clip feeding driving mechanism and the jaw driving mechanism to move in the first direction, and simultaneously drives the matching mechanism to move to drive the pusher
  • the clip drive mechanism moves in a second direction to store energy, wherein the first direction is opposite to the second direction;
  • the push clip drive mechanism includes a third reset member 456 for storing the energy.
  • the actuating member 330 is released, and the push-clamp drive mechanism advances under the action of the third reset member 456 to move the remaining clamps 10 in the cartridge 220 forward by one station; the movement trajectory of the switching mechanism is the same as that of the jaw driving mechanism.
  • the shaft makes full use of the space and the structure is more compact.
  • the matching mechanism includes a first matching member and a second matching member driven by the first matching member, the first matching member is connected with the switching mechanism, and the second matching member is connected with the push clip driving mechanism; the first matching member is connected with the push-clamp driving mechanism;
  • the movement track of the piece is parallel to the movement track of the jaw drive mechanism, and the movement track of the second matching piece is parallel to the movement track of the jaw drive mechanism.
  • the clip applier also has a structural design for realizing the locking of the special position of the wrench, and the specific details are as follows.
  • the wrench is movably connected to the housing 321 of the main body 320, and the wrench moves in three special positions: at the initial moment, when the user does not operate the wrench, the wrench is in the open position; The position of the wrench when the clamping is completed is the middle position; when the user operates the wrench, the position of the wrench when the clamping is completed is the closed position, and the user cannot operate the wrench to move further. From the initial moment, the user keeps operating the wrench, and the wrench moves from the open position to the intermediate position and then to the closed position. The movement of the wrench in the direction of the closed position is defined as the forward movement of the wrench.
  • the movement of the wrench from the open position to the middle position and the movement of the wrench from the middle position to the closed position are both positive movements; correspondingly, define the direction of the wrench to open.
  • the movement in the direction of the position is the reset movement of the wrench.
  • the movement of the wrench from the closed position to the middle position and the movement of the wrench from the middle position to the open position belong to the reset movement. It is defined that the movement of the wrench from the open position to the middle position is the forward movement of the first stage of the wrench, the movement of the wrench from the middle position to the closed position is the forward movement of the second stage of the wrench, and the movement of the wrench from the closed position to the middle position is the second stage of the wrench.
  • the first stage of reset movement of the wrench is the movement of the wrench from the middle position to the open position.
  • the user operates the wrench to make a positive movement, and in response to the user's operation, the wrench moves from the open position to the intermediate position and then to the closed position.
  • the clip feed drive mechanism and at least part of the jaw drive mechanism are accommodated in the housing 321, such as the clip feed proximal drive member and the jaw proximal drive member above, the clip feed drive mechanism and The jaw drive mechanism is connected to the wrench and is driven by the wrench to move forward.
  • a clip feed drive mechanism drives the clip 10 forward into the jaw assembly 100 in response to the wrench moving from the open position to the neutral position.
  • the clip 10 is in the ready position, that is, the first segment of the wrench moves forward to drive the clip feeding action and realize the clip feeding in place, and the ready position is the first clip stably clamped by the jaw assembly 100.
  • the jaw drive mechanism drives the previous movement of the jaw drive mechanism in response to the wrench moving from the neutral position to the closed position, thereby driving the jaw assembly 100 to close movement, and when the wrench is in the closed position, the jaw assembly 100 is closed
  • the state that is, the positive movement of the second segment of the wrench drives the closing action and realizes that the jaws are closed to the end and the clamping is in place, and the clamping in place is that the clip 10 in the jaw assembly 100 is compressed to a closed state.
  • the clip applier in this embodiment is a clip applier capable of applying multiple clips continuously.
  • the wrench needs to be reset and moved to the open position to prepare for the next application of the clip 10 . If the user also operates the reset, it is troublesome, resulting in poor user experience.
  • the clamp applier also includes a wrench reset mechanism, which is connected to the wrench. When the user stops operating the wrench, the wrench reset mechanism drives the wrench to perform reset movement, and the direction of the reset movement is opposite to the direction of the forward movement.
  • the wrench reset mechanism includes an elastic element. When the wrench moves forward, the elastic element is compressed and deformed to store energy.
  • the wrench reset mechanism is the third reset member 456 of the push-clamp drive mechanism.
  • the connection between the third reset member 456 and the wrench is as described above.
  • the wrench reset mechanism includes, in addition to the third reset member 456, a second reset member 446 of the jaw driving mechanism.
  • the second restoring element 446 also provides restoring force to the handle. Specifically, during the movement of the wrench from the closed position to the intermediate position, the jaw drive tube 432 is always in contact with the input piece, and the second restoring force is always in contact with the input piece.
  • the component 446 When the component 446 resets itself, it drives the jaw driving tube 432 to retreat, and the jaw driving tube 432 pushes the input component to retreat, so that the driving surface of the input component pushes the wrench to perform the reset movement until the jaw driving tube 432 returns to the position at the initial moment, and the The input is disengaged, and from this moment on the wrench will be provided with a restoring force by the third restoring mechanism alone.
  • the doctor operates the wrench to move forward to execute the clip feeding and clip application in sequence. If there is no obvious pause or boundary between the clip feeding action and the clip application action, the doctor will feel bad.
  • the clamp applier in this embodiment further includes a wrench locking mechanism.
  • the wrench locking mechanism includes a guide member 351 and a guide channel 340 disposed on the wrench and moving with the wrench.
  • the guide channel 340 includes a starting point a, a locking point b and an end point , at least part of the guide member 351 is accommodated in the guide channel 340, and the guide member 351 moves relatively with the guide channel 340; the guide member 351 relatively moves from the starting point a to the locking point b in response to the wrench moving from the open position to the intermediate position, The guide 351 relatively moves from the locking point b to the end point in response to the wrench moving from the neutral position to the closed position.
  • the guide member 351 prevents the wrench from performing the reset movement at the locking point b.
  • the user operates the wrench to move the wrench, which drives the guide channel 340 to move, so that the guide channel 340 moves relative to the guide member 351, which is also referred to as the movement of the guide member 351 relative to the guide channel 340 or the relative movement of the guide member 351.
  • the guide channel 340 is a closed channel provided in the wrench, and the guide member 351 cannot be separated from the guide channel 340, and thus cannot be separated from the wrench.
  • the locking point b of the wrench locking mechanism can provide a pause point for the clip feeding and clip application actions. At this pause point, the doctor can observe whether the position of the jaw assembly 100 is suitable for the tissue to be clamped, and can adjust the forceps if necessary.
  • the position of the port assembly 100 improves the user experience; the lock point b is provided by the wrench itself, and the structure is simple; the guide channel 340 on the wrench is a closed channel, the moving channel of the guide member 351 is stable, and the locking effect of the wrench is stable .
  • the guide channel 340 only when the guide member 351 is located at the locking point b, the guide member 351 prevents the wrench from returning to movement. That is, the guide channel 340 only provides a locking point b that prevents the wrench from performing the reset movement.
  • the wrench reset mechanism will not work. Drive the wrench to do the reset movement. In this way, in the process of operating the wrench, the wrench is only locked in the middle position to remind the completion of the clip feeding, and is not disturbed by other positions, which improves the user experience.
  • the wrench reset mechanism drives the wrench to reset to the intermediate position, and the guide member 351 responds to the wrench's reset movement to the intermediate position. Move to the locking point b, and the guide member 351 prevents the wrench from continuing the reset movement at the locking point b. In this way, only one locking point provided by the guide channel 340 that prevents the reset movement of the wrench is further fully utilized. If the operation of the wrench is stopped during the clip application process, the wrench will stop to the middle position after the clip feeding is completed, instead of being directly reset to the open position. , to prevent the user from operating the wrench over the middle position and not being able to know the completion of the clip feeding, providing the user with the opportunity to observe the operation situation and adjust the clamping position of the jaw assembly 100 before the clip feeding is completed, and improve the user experience.
  • the wrench reset mechanism drives the wrench to reset to the middle position, it also drives the jaw drive mechanism to move backward at the same time, thereby driving the jaw assembly 100 to open and move. Whether before or after the wrench reaches the closed position, if a second return movement occurs, the jaw drive mechanism is driven backward and the jaw assembly 100 is opened.
  • the clip applier has started to apply the clip, but has not completed the clip application, the wrench has not reached the closed position, the jaw assembly 100 has not been closed to the end, and the clip 10 has not been compressed to the closed state, and the wrench can be released at this time.
  • the jaw assembly 100 returns to the fully open state, the clip 10 returns to the open state, and the subsequent adjustment of the position of the jaw assembly 100 on the tissue will not damage the tissue, and this design is safer and more user-friendly .
  • the guide channel 340 is a closed groove.
  • the closed groove is a groove surrounded all around, and the guide member 351 is restricted from moving around in the groove and cannot leave the groove, so that the guide member 351 cannot be separated from the wrench in this embodiment.
  • the closed groove provides a fixed moving channel for the guide member 351, and the movement stability is strong, and further, the locking stability of the guide member 351 and the guide channel 340 at the locking point b is good.
  • the closed groove is a closed groove passing through the wrench body 320 , and the radial direction is perpendicular to the axial direction.
  • the guide channel 340 can also be a closed groove that does not penetrate through the body of the wrench, and only needs to provide a closed channel in which the guide member 351 moves.
  • the wrench includes a wrench body 331 , a user-operated pressing portion 332 disposed at one end of the wrench body 331 , and a push portion 333 disposed at the other end of the wrench body 331 .
  • the wrench main body 331 is provided with a pivot end 334 pivotally connected to the housing 321 of the main body 320 of the operating assembly 300 .
  • the guide channel 340 is located on the wrench body 331 and between the pivoting end 334 and the pushing portion 333 . Therefore, the guide channel 340 is located in the middle position of the wrench, which further improves the movement stability of the guide member 351, and no additional structure is required to set the guide channel 340, and the structure of the wrench locking mechanism is compact.
  • the guide channel 340 includes a main channel 341 and only one secondary channel 343 extending from an opening 342 of the main channel 341 .
  • the opening 342 is located between two ends of the main channel 341 .
  • the two ends of the channel 341 are respectively provided with a starting point a and an end point c, and the end of the channel 343 away from the opening 342 is provided with a locking point b;
  • the wrench body 331 also includes a wrench locking elastic element 355, which applies A force is given to the guide 351 to disengage the main channel 341 and enter the slave channel 343 , so that the wrench locking elastic element 355 drives the guide 351 to disengage from the main channel 341 and enter the slave channel 343 .
  • the guide channel 340 only provides a locking point that prevents the wrench from resetting movement.
  • the wrench When the wrench is not in the first segment of forward movement before reaching the middle position of the wrench, if the wrench is released, the wrench will reset to the open position and stop. , when the wrench leaves the middle position and continues to move forward, if the wrench is released before reaching the closed position, the wrench will reset to the middle position and be locked in the middle position by the locking point b of the above-mentioned wrench locking mechanism, The reset movement cannot be continued.
  • the user can clearly feel the pause of the wrench in the middle position when the wrench is released when the clip feeding action is completed and before the clip application action is completed. After the clip application is completed, the user can also adjust the position of the clip application force, which has a good user experience.
  • the slave channel 343 includes a blocking wall 344.
  • the guide member 351 When the wrench is not operated and the guide member 351 is located at the locking point b, the guide member 351 abuts the blocking wall 344 in the direction of the wrench's reset movement, thereby preventing the wrench from performing the reset movement at the locking point b. That is, the blocking wall 344 prevents the guide member 351 at the locking point b from moving toward the starting point a.
  • the main channel 341 includes a first wall extending from a starting point a to a first wall connected with the blocking wall 344, the first wall and the blocking wall 344 forming a right or acute angle.
  • the simple angle design of the guide channel can ensure that the blocking wall 344 can effectively prevent the guide piece 351 from breaking away from the locking point b of the slave channel 343, and when the guide piece 351 enters the slave channel 343 from the main channel 341 in the forward motion, it passes through The right-angle point or the acute-angle point will make a collision sound, and the sound clearly reminds the user that the wrench has reached the middle position, and reminds the user that the clip is in place at the moment.
  • the slave channel 343 also includes a guide wall 345 connected to the blocking wall 344, and the guide wall 345 guides the guide member 351 to move bidirectionally between the locking point b and the end point c.
  • the main channel 341 also includes a second wall extending from the end point c to connect with the guide wall 345 , the second wall forming an obtuse angle with the guide wall 345 .
  • the simple angle design of the guide channel in this way further ensures the bidirectional movement between the locking point b and the end point c, and the wrench will not be locked in both directions.
  • the main channel 341 is an arc channel with the pivot end 334 of the wrench as the center of the circle, and the sub channel 343 extends from the opening 342 of the main channel 341 to the direction away from the pivot end 334, that is, from the opening 342 of the main channel 341.
  • the distance between the channel 343 and the pivot end 334 is greater than the distance between the main channel 341 and the pivot end 334, and the distance between the guide 351 located in the main channel 341 and the pivot end 334 is defined as X, since the main channel 341
  • the distance X of the guide member 351 remains unchanged when the main channel 341 moves (including the start point a and the end point c)
  • the distance between the guide member 351 and the pivot end 334 when the guide member 351 is located in the slave channel 343 is defined as Y
  • Y keeps increasing, and Y is always greater than X, especially the distance Y0 when the guide member 351 is located at the locking point b is the maximum value.
  • the guide channel 340 is not limited to the above-mentioned shape.
  • the main channel 341 is an arc-shaped channel, and both ends of the arc-shaped channel have different distances from the pivot end 334, but the above X is still smaller than Y, and the above-mentioned wrench locking function is also realized.
  • Those skilled in the art can easily think of the structure of the guide channel 340 that can ensure that the locking point b can be locked with the cooperation of the slave channel 343, which are all within the protection scope of the present application. Inside.
  • the wrench locking mechanism further includes a guide pivot member 350, and the guide pivot member 350 is accommodated in the housing.
  • the guide pivot member 350 includes a pivot end 352 pivotally connected to the housing 321, a force end 353 extending from the pivot end 352, and the above-mentioned guide member 351.
  • One end of the wrench locking elastic element 355 abuts against the The force-receiving end 353 abuts the casing 321 at the other end.
  • the guide pivot member 350 When the elastic force of the wrench locking elastic element 355 acts on the force receiving end 353, it drives the guide pivot member 350 to rotate with the pivot end 352 as the rotation center, and also drives the guide member 351 to take the pivot end 352 as the rotation center.
  • the guide pivot member 350 defines an arc-shaped movement trajectory of the guide member 351, which ensures that the guide member 351 can switch back and forth between the main channel 341 and the slave channel 343 stably, and further ensures the stability of the wrench locking mechanism.
  • the guide pivot member 350 includes a first pivot arm and a second pivot arm respectively extending from the pivot end 352 , and the end of the first pivot arm is the force end 353
  • the guide member 351 is disposed at the end of the second rotating arm, one end of the wrench locking elastic element 355 is connected to the force end 353 , and the other end of the wrench locking elastic element 355 is connected to the housing 321 .
  • the first rotating arm and the second rotating arm use the pin shaft of the pivot end 352 as a fulcrum to form a lever, and the spanner locking elastic element 355 and the guide member 351 are located at both ends of the lever.
  • the first rotating arm and the second rotating arm may be levers connected horizontally as shown in FIG. 27 , or may be levers connected at an angle.
  • the above is a specific embodiment of the guide pivot member 350 --- a lever, and the structure of the guide pivot member 350 is not limited to this.
  • a rotating arm, the guide member 351 is arranged at the end of the first rotating arm, and the middle point of the first rotating arm is the force end 353 connected to the wrench locking elastic element 355. This method also enables the wrench locking elastic element 355 to pass through. It is within the scope of the present invention to guide the pivot member 350 to apply a force to the guide member 351 to disengage the main channel 341 and enter the secondary channel 343 .
  • the wrench locking elastic element 355 is indirectly connected to the guide member 351 through the guide pivot member 350.
  • the element 355 drives the guide piece 351 away from the main channel 341 and enters the secondary channel 343".
  • a "V"-shaped rod can be used as a wrench to lock the elastic element 355, and one end of the V rod is fixedly connected to the housing 321. The other end is provided with the above-mentioned guide member 351, the "V"-shaped rod is made of rigid material, and the V-shaped bending part of the "V"-shaped rod is bent to a small extent, so as to provide the guide member 351 with a "break out of the main channel 341 to enter.
  • a wrench locking elastic element 355 is formed of an elastic material that can undergo large deformation, and the wrench locks the elastic element 355 is, for example, a "V" metal dome 522 or a spring, one end is fixedly connected to the housing 321, and the other end is provided with a guide 351. Due to the greater elasticity of the locking elastic element, the guide 351 connected to it moves in the channel. The stability is poor, and the function of locking the wrench in the middle position cannot be well achieved.
  • the indirect connection between the wrench locking elastic element 355 and the guide member 351 and the application of the force entering the slave channel 343 through the guide pivot member 350 in this embodiment in addition to the above benefits, also has the following advantages Benefit:
  • the problem of parts being damaged or broken is not easy to occur, the stability of the movement of the guide member 351 is ensured, and the stability of the locking mechanism of the wrench is further ensured.
  • the wrench locking elastic element 355 is a spring.
  • the guide pivot member 350 further includes a stop end 354 extending from the pivot end 352. Before the wrench moves from the open position to the intermediate position, the stop end 354 is kept disengaged from the drive mechanism for feeding the clip; the wrench moves from the intermediate position. Before reaching the closed position, the back-stop end 354 is kept in contact with the clip feeding driving mechanism to prevent the clip feeding driving mechanism from retreating.
  • the third pivot arm extending from the pivot end 352 of the guide pivot member 350 is guided, and the end of the third pivot arm stops at the retreat end 354 , so that the guide member 351 , the stopper Both the end 354 and the force-receiving end 353 move around the pivot end 352 .
  • the wrench is in the open position when the clamp is not in use, the guide pivot member 350 is located below the clip feeding drive mechanism, and the stop end 354 is not in contact with the clip feeding drive mechanism; when the wrench moves forward, the guide member 351 is in the When the main channel 341 moves toward the opening 342, the driving mechanism for feeding the clip moves forward, and the stop end 354 is still not in contact with the driving mechanism for feeding the clip; when the guide member 351 enters from the channel 343 and moves to the locking point b, the stop is stopped.
  • the distance between the end 354 and the end of the clip feed drive mechanism gradually decreases until it abuts against its end, preventing it from retreating; when the guide 351 exits the slave channel 343 along the guide wall 345 and returns to the main channel 341, the jaw drive mechanism During the clip application, the back-stop end 354 always keeps abutting with the end of the clip feeding drive mechanism to prevent it from retreating, thereby ensuring that the clip 10 located in the jaw assembly 100 will never retreat during the clip application process, ensuring the clip application. stability. Specifically, as shown in FIGS.
  • the channel 343 extends from the opening 342 of the main channel 341 toward the direction away from the pivot end 334 of the wrench, and the distances from the starting point a and the end point c to the pivot end 334 of the wrench are less than The distance from the locking point b to the pivot end 334 of the wrench.
  • the guide member 351 has a first movement path when the wrench moves forward and a second movement path when the wrench returns to the closed position after the wrench reaches the closed position.
  • the first movement path includes a master channel 341 and a slave channel 343.
  • the second path includes the master channel 341 and does not include the slave channel 343 .
  • the above-mentioned movement path is the path of the relative movement of the guide member 351 .
  • the motion path is the path formed by the passages reached during the motion.
  • the clamp applier further includes a path switching member 360 for switching the first motion path and the second motion path.
  • the path switching member 360 is located in the housing 321, and the path switching member 360 has two states. When the path switching member 360 is in the first state, the path switching member 360 moves away from the slave channel 343 to allow the guide member 351 to enter or exit the slave channel. 343 , when the path switching member 360 is in the second state, the path switching member 360 blocks the guide member 351 from entering the slave channel 343 .
  • the guide member 351 is a cylindrical body extending along the radial direction and passes through the guide channel 340.
  • the guide member 351 includes a first part and a second part that are connected to each other.
  • the part is outside the guide channel 340 and protrudes from the surface of the wrench body 331.
  • the second part will correspondingly form an active space with the movement of the first part.
  • the path switching member 360 blocks the first part of the guide member 351 from the opening 342 into the space passing through the slave passage 343, the guide member 351 can be prevented from entering the slave passage 343, and the entire slave passage 343 does not need to be blocked.
  • the member 360 blocks the second part of the guide member 351 from entering the above-mentioned movable space or the way to enter the above-mentioned movement, so that the first part of the guide member 351 is prevented from entering the secondary passage 343, that is, the guide member 351 can also be prevented from entering the secondary passage 343.
  • the guide member 351 enters and exits the slave channel 343 from the opening 342 of the main channel 341.
  • the opening 342 includes a starting point 342a and an ending point 342b. Between the starting point 342a and the ending point 342b is the entrance and exit of the slave channel 343, and the starting point 342a Close to the start point a of the main channel 341 , the end point 342 b is close to the end point c of the main channel 341 .
  • the path switching member 360 when the wrench moves forward, when the guide member 351 is located at the starting point 342a of the opening portion 342 of the main channel 341, the path switching member 360 is in the first state, the guide member 351 enters the slave channel 343, and the guide member 351 During the movement from the channel 343 to the end point 342b of the opening 342, the path switching member 360 is in the first state, so that the guide member 351 can smoothly enter and exit from the channel 343 when the wrench moves forward; after the wrench reaches the closed position
  • the reset movement at least when the guide member 351 is located at the end point 342b of the opening portion 342 of the main channel 341 , the path switching member 360 is in the second state and maintains the second state at least until the guide member 351 moves to the opening portion 342 of the main channel 341 The starting point 342a, so that the guide 351 can never enter the slave channel 343 during the reset movement.
  • the above state control logic of the path switching member 360 needs to be designed based on the structure of the opening
  • the path switching member 360 has the following state logic which is relatively easy to implement. During the forward movement of the wrench and the movement from the open position to the closing position, the path switching member 360 is in the first position. When the wrench moves forward and reaches the closed position, the path switching member 360 switches from the first state to the second state, and after the wrench reaches the closed position During the reset movement and the movement from the closed position to the intermediate position, the path switching member 360 is in the second state, so that the guide member 351 can never enter the secondary channel 343 during the reset movement from the closed position.
  • the state control logic of the path switching member 360 in this embodiment controls the state of the path switching member 360 based on the position of the wrench, which achieves the same function, is more stable, and has a simpler design.
  • the path switching member 360 when the wrench reaches the closed position and starts the reset movement, when the wrench is in the open position, the path switching member 360 is in the first state. That is, during the reset movement of the wrench from the neutral position to the open position, the path switching member 360 is switched from the second state to the first state. In this way, at the end of one use cycle of the continuously applied clamp applicator, the path switching member 360 returns to the initial state, so that the next use cycle can function normally
  • the path switching member 360 is in the first state; during the reset movement of the wrench, at least when the guide member 351 passes through the opening 342 , the path switching member 360 is in the second state.
  • the clamp applier further includes a path driving member 370 , which is located in the casing 321 .
  • the path switching member 360 is disposed on one of the wrench and the main body 320
  • the path driving member 370 is disposed on the other of the wrench and the main body 320 .
  • the path switching member 360 is disposed on one of the casings 321 of the wrench and the main body 320
  • the path driving member 370 is disposed in the other of the casings 321 of the wrench and the main body 320 .
  • the path switching member 360 When the wrench moves forward or resets, when the path driving member 370 abuts against the path switching member 360 , the path switching member 360 is driven to move, so that the path switching member 360 switches between the first state and the second state.
  • the movement of the wrench drives the path driving member 370, and then drives the path switching member 360 to change its state, and finally returns to the switching of the movement path of the guide channel 340 of the wrench itself.
  • the movement of the wrench is the power source for switching the movement path of the wrench. Implementing an inner loop is simple and reliable, and does not require an additional power source to change the motion path.
  • the path driving member 370 can selectively abut or disengage from the path switching member 360.
  • the path switching member 360 does not move and is in a fixed position, and the state remains unchanged.
  • the path switching member 360 moves and the position changes, and the state may change; in another embodiment, the path switching member 360 can continue to abut with the path driving member 370 and continue to move, when it moves to a certain position , a switch between the first state and the second state occurs.
  • the path switching member 360 includes a pivoting portion 361 , a triggering portion and an executing portion 363 , and the path switching member 360 rotates with the pivoting portion 361 as an axis.
  • the triggering part includes a first triggering part 362a and a second triggering part 362b respectively disposed on both sides of the pivoting part 361;
  • the path driving member 370 is a guide rib, and the guide rib includes a first guide rib 371 and a second guide rib 373.
  • a guide rib 371 has a first guide slope 372, a second guide rib 373 has a second guide slope 374, the first guide rib 371 is located on the front side of the first trigger portion 362a, and the second guide rib 373 is located on the second trigger portion The rear side of 362b; when the first trigger part 362a abuts against the first guide rib 371 and moves along the first guide slope 372, the path switching member 360 rotates toward the first direction, and the path switching member 360 switches from the first state to the second state When the second trigger portion 362b abuts against the second guide rib 373 and moves along the second guide slope 374, the path switching member 360 rotates toward the second direction, and the path switching member 360 switches from the first state to the second state; path switching When the member 360 is in the first state, the execution part 363 moves away from the slave channel 343 to allow the guide member 351 to enter or exit the slave channel 343; when the path switching member 360 is in the second state, the execution part 363 blocks the guide member 3
  • the path switching member 360 and the path driving member 370 move relative to each other.
  • the front side and the rear side respectively refer to the fact that the first guide rib 371 is located on the path switching member 360 relative to the path driving member when the wrench moves forward.
  • the second guide rib 373 is located at the rear side in the relative movement direction of the path switching member 360 relative to the path driving member 370 when the wrench moves forward.
  • the pivoting portion 361 is a rotating shaft, which is fixed in the horizontal pin hole of the wrench body.
  • the first triggering portion 362 a and the second triggering portion 362 b are two extending from the rotating shaft 255
  • the plates are the first plate 362a' and the second plate 362b' respectively, and have an obtuse angle.
  • the execution part 363 is the rib 363' connecting the first plate 362a'; the pivot part 361 of the path switching member 360 is connected to a wrench, especially a wrench
  • the main body 33 is close to the passageway 343, the obtuse angles of the first plate 362a' and the second plate 362b' face the inner side of the casing 321, the guide ribs are arranged on the inner side of the casing 321, the first guide slope 372 and the second guide slope
  • the bevel of 374 faces the wrench body 331 .
  • the first plate 362a' and the first plate 362a' may be at an acute or right angle.
  • the above-mentioned front and rear sides of the path switching member 360 and the path driving member 370 are arranged so that the path switching member 360 selectively abuts or disengages from the path switching member 360 when the wrench moves forward or resets.
  • the positions of the wrench also include a first proximal position between the neutral position and the closed position, and a second proximal position between the open position and the open position.
  • the movement process of the path switching member 360 and the path driving member 370 is as follows: at the initial moment, the wrench is in the open position, and the path switching member 360 is in the first position relative to its own pivot portion 361, which is in the first position.
  • the path switching member 360 moves around the pivot end 334 of the wrench with the wrench, and the first trigger
  • the portion 362a gradually approaches the first guide rib 371, the path switching member 360 does not move in the first direction or the second direction relative to its pivot portion 361, and is still in the first position and in the first state; the wrench moves forward and When reaching the first approaching position, the path switching member 360 begins to abut the first guide slope 372 of the first guide rib 371, and the path switching member 360 is still in the first position and in the first state;
  • the first trigger portion 362a of the path switching member 360 moves along the first guide slope 372, and the path switching member 360 rapidly rotates toward the first direction, leaving the first position, but still in the first position.
  • the first state when the wrench reaches the closed position, the path switching member 360 has rotated a total angle of A in the first direction from the first position, the path switching member 360 is located at the second position relative to its pivot portion 361, and the path The switching member 360 is switched from the first state to the second state; during the reset movement of the wrench and from the closed position to the second adjacent position, the path switching member 360 moves around the pivot end 334 of the wrench along with the wrench, and the second trigger portion 362b is gradually approaching the second guide rib 373, and is also in a disengaged state from the first guide rib 371.
  • the path switching member 360 does not move in the first direction or the second direction relative to its pivot portion 361, and remains in the second position.
  • the lengths of the first guide rib 371 and the second guide rib 373 are relatively short, so as to achieve a relatively fast rotation of the A angle, relatively fast switching between the first state and the second state, the structure is simple, the cost is low, and the path switching is performed.
  • the path switching member 360 has a stable position and a stable state, and the state of applying the clamp is more stable.
  • the position of the wrench further includes a third adjacent position and a fourth adjacent position located between the open position and the intermediate position, the fourth adjacent position is closer to the open position, and the wrench reset movement
  • the second trigger portion 362b and the second guide rib 373 are in a disengaged state, and the specific position, movement and state of the path switching member 360 are the same as above and will not be repeated, and the wrench moves from the third proximity position to the fourth proximity position.
  • the second trigger portion 362b abuts the second guide rib 373 and rotates in the second direction along the second guide slope 374.
  • the path switching member 360 When it is in the fourth adjacent position, the path switching member 360 achieves the return to the first position and the The first state is as described above; and during the subsequent movement of the wrench from the fourth adjacent position to the open position, the second guide rib 373 is in a disengaged state from the path switching member 360, and the path switching member 360 remains at the first position and second state. In this way, the path switching member 360 can also be restored to the initial state, so as to function normally in the next use cycle of the continuously applied clamp applier.
  • the clip applier further includes a positioning mechanism.
  • the positioning mechanism includes a first positioning member 381 and a second positioning member 382 .
  • the first positioning member 381 is disposed on the pivot portion 361 of the path switching member 360 .
  • the first positioning member 381 uses the pivot portion 361 as the rotation shaft 255 to move synchronously
  • the second positioning member 382 includes a The first concave 383, the second concave 384 and the convex part 385 located between the first concave 383 and the second concave 384, one of the first positioning member 381 and the convex part 385 is an elastic element
  • the first positioning member 381 can only be fixed in the first recess 383 or the second recess 384, and cannot be located at other positions, so the positioning of the path switching member 360 relative to its pivot portion 361 can only be fixed at a fixed position two positions, such as the above-mentioned first position and the above-mentioned second position, and the path switching member 360 is in the first state when in the first position, and in the second state when the path switching member 360 is in the second position.
  • the first positioning member 381 is located in the first recess 383.
  • the first positioning member 381 also rotates in the first direction, and the first positioning member 381 abuts against the raised portion 385.
  • the first positioning member 381 can smoothly pass over the convex portion 385 and enter the second recess 384;
  • the positioning member 381 can also return to the first recess 383 under the reaction force of the elastic element.
  • the first positioning member 381 passes over the protruding portion 385 from the second recess 384 and smoothly enters the first recess 383 , which is not repeated here.
  • the path switching member 360 and the path driving member 370 can be in a disengaged state. Without the above-mentioned positioning mechanism, the path switching member 360 can move freely relative to its own pivot portion 361.
  • the path driving member 370 will freely rotate in the first direction or the second direction, so as to accidentally enter the second state during the period when the first state is required, and accidentally enter the first state during the period when the second state is required.
  • the first motion path of the forward motion and the second motion path of the reset motion of the clamp are damaged and cannot be used normally. Therefore, the above-mentioned positioning mechanism prevents the path switching member 360 from moving unexpectedly, and ensures the normal movement path of the clamp applier.
  • the first positioning member 381 may be a first protruding rib, which protrudes from the pivoting portion 361 away from the above-mentioned obtuse angle, and the protruding portion 385 is a second protruding rib.
  • the elastic element can also be a C-shaped raised metal rod with elasticity.
  • the jaw assembly 100 has a design capable of stably guiding, clamping and compressing the first clip, the details of which are as follows.
  • the jaw assembly 100 includes a first jaw arm 1 and a second jaw arm 1'.
  • the structure of the first clamp arm 1 is the same as that of the second clamp arm 1', and the present invention focuses on describing the structure of the first clamp arm 1 .
  • the first clamp arm 1 includes a bottom portion 11 , a first side portion 12 and a second side portion 13 .
  • the bottom portion 11 , the first side portion 12 and the second side portion 13 make the cross section of the first clamp arm 1 Roughly U-shaped.
  • the first side portion 12 includes a first guide portion 15 and a first accommodating portion 17.
  • the first guide portion 15 and the first accommodating portion 17 are both disposed on the inner wall of the first side portion 12, and the second side portion 13 includes a second The guide portion 16 and the second accommodating portion 18 are both disposed on the inner wall of the second side portion 13 .
  • the bottom 11 is located between the first guide portion 15 and the second guide portion 16 , and a gap 14 is formed between the first accommodating portion 17 and the second accommodating portion 18 .
  • the structures of the first guide portion 15 and the second guide portion 16 are the same, and the structures of the first accommodating portion 17 and the second accommodating portion 18 are the same.
  • the present disclosure focuses on describing the structures of the first guide portion 15 and the first accommodating portion 17 .
  • the first guide portion 15 includes a guide surface 51, and at least the second portion 53 of the guide surface 51 is substantially arc-shaped.
  • the guide surface 51 includes a first portion 52 that is flush with the upper surface of the bottom portion 11 , and further includes a second portion 53 that is higher than the upper surface of the bottom portion 11 .
  • the second portion 53 is formed by extending the first portion 52 in a substantially arcuate direction. , the first part 52 and the second part 53 transition smoothly.
  • the first accommodating portion 17 is located far from the first guide portion 15 , and the first accommodating portion 17 is recessed.
  • the first accommodating portion 17 includes a proximal side 71 and a distal side 72 .
  • the proximal side 71 meets the second portion 53 of the guide surface 51 , and the intersection 73 forms a rounded corner.
  • the intersection 73 is the distal end of the second portion 53 .
  • the jaw assembly 100 also includes a stopper 2 .
  • the stoppers 2 are arranged on the first clamp arm 1 and the second clamp arm 1 ′, and are respectively connected with the first guide portion 15 and the second guide portion 16 of the first clamp arm 1 and the second clamp arm 1 ′.
  • the two guides of the arm 1' cooperate.
  • the structures of the four stoppers 2 are the same, and their structures are described by taking the first stopper 21 which is matched with the first guide portion 15 as an example. As shown in Figures 34-38, the first stopper 21 is located above the first guide portion 15.
  • the first stopper 21 includes a base portion 23 and a movable portion.
  • the movable portion includes an end portion 22 and a middle portion 25.
  • the middle portion 25 Located between the end portion 22 and the base portion 23 .
  • the size of the base portion 23 is larger than that of the middle portion 25 and the end portion 22 , and the base portion 23 is engaged with the groove provided on the first side portion 12 , so that the base portion 23 is fixed to the first side portion 12 .
  • Both the middle portion 25 and the end portion 22 are located inside the inner wall of the first side portion 12 .
  • the movable part can move in the up and down directions.
  • the first guide portion 15 and the first stopper 21 together form a guide space for the clip 10 .
  • the first clamp arm 1 and the second clamp arm 1' also have three guiding spaces.
  • the first clamp arm 1 and the second clamp arm 1' have a total of four guiding spaces, which are matched with the four protrusions of the clip 10 in one-to-one correspondence.
  • the first stopper 21 does not cooperate with the protrusion of the clip 10 , and the distance between the second portion 53 of the guide surface 51 and the first stopper 21 decreases in the direction toward the distal end of the guide surface 51 .
  • the aforementioned distance is at a minimum between the intersection 73 and the first stop 21 .
  • the above-mentioned distance can be determined by, for example, the minimum distance between a certain point of the second portion 53 and the lower surface of the first stopper 21 , and the above-mentioned minimum distance decreases in the direction toward the distal end of the guide surface 51 .
  • the stopper 2 has elasticity, including the following two methods.
  • the material of the stopper 2 has elasticity, and the material includes but not limited to metal, so that the stopper 2 tends to maintain its original position.
  • at least a part of the stopper 2 is connected to the clamp arm, the clamp arm is further provided with a torsion spring, one end of the torsion spring is connected to the clamp arm, and the other end is connected to the stopper 2, The stopper 2 tends to approach the guide surface 51 .
  • the stopper 2 has elasticity, so that the protruding part of the clip 10 is constrained by the stopper 2 in the guide space, so that the clip 10 is kept in the guide space during the process of moving distally, so that the clip 10 is gradually opened.
  • the stopper 2 includes a base 23 and a movable part, and the movable part can move up and down, including two ways: in one way shown in this embodiment, the base 23 and the clamp The arm is connected, and the movable part can move up and down due to the elasticity of the material of the stopper 2; in another way shown in other embodiments, the base 23 is pivotally connected to the clamp arm, and the movable part also follows It can be pivoted to move up and down, one end of the torsion spring is connected to the clamp arm, and the other end is connected to the movable part, so that the movable part tends to move toward the guide surface 51 .
  • the movable part can move up and down, and can make space for the pro
  • the maximum size of the first protrusion 41 is approximately the same as the maximum size of the second protrusion 42, and the shape of the first protrusion 41 and the shape of the second protrusion 42 may be the same or different.
  • the second protrusions 42 may be adapted to substantially the same guide space. It should be noted that the size of the first protruding portion 41 can also be set to be different from that of the second protruding portion 42, and even the sizes of the two first protruding portions 41 can be set to be different, and the two second protruding portions The dimensions of the 42 are set to be different. In this case, the guiding space matched with the protruding portion can be appropriately changed, that is, the relative position, shape and/or size of the guiding portion and the stopper 2 are appropriately changed.
  • the clip 10 In the state where the jaw assembly 100 is opened, that is, in the state of being opened to the bottom, the clip 10 is pushed to move far away under the driving of the clip feeding drive mechanism, so as to enter the jaw assembly 100 from the clip box 220, and the first The protruding portion 41 and the second protruding portion 42 respectively enter the corresponding guide spaces, and move distally in the corresponding guide spaces until the clip 10 is located at the distal end of the jaw assembly 100, at least a part of the first protruding portion 41 and the second protruding portion 41 At least a portion of the portions 42 respectively enter and are accommodated in the accommodating portions.
  • Both the first protruding portion 41 and the second protruding portion 42 are guided by the guide portion, thereby moving along the guide surface under the restraint of the stopper 2 , so that the clip 10 moves in a desired direction.
  • the clip 10 Before being fed into the jaw assembly 100, the clip 10 is partially compressed and stored in the clip box 220 due to the size and internal space of the cartridge 220. At this time, the clip 10 is not fully opened, and is compressed for a period of time. Therefore, after the clip 10 is separated from the sleeve 210 , an external force is required to restore the original shape of the clip 10 , that is, the opened shape of the clip 10 . Compressed means that the two arms of the clip 10 are close to each other, but are not engaged.
  • the clip 10 Since the clip 10 will continue for a period of time from the time it is assembled to the cartridge 220 until it is used, the clip 10 tends to maintain the compressed shape due to the compression during this period. Both the first protrusion 41 and the second protrusion 42 are also constrained by the stopper 2, so that in the process of moving them far in the guide space, they overcome the above-mentioned tendency to maintain the compressed shape, so that the first clamp of the clamp 10
  • the arm 31 and the second clamping arm 32 are gradually opened in the process of moving distally, until the original shape is restored, or the opening angle of the jaw assembly 100 remains the same.
  • the clip 10 returns to its original shape, or maintains the same angle as the jaw assembly 100 is opened, maximizing the clamping space between the two arms of the clip 10 and facilitating the holding of the tissue to be clamped therein.
  • the protruding portion of the clip 10 does not enter the guide space and is not constrained by the stopper 2 .
  • the distance between the second portion 53 of the guide surface 51 and the corresponding stopper 2 is directed toward the guide surface 51
  • the direction of the distal end decreases until the distance between the distal end of the second portion 53 (ie the distal end of the guide surface 51 ) and the stopper 2 is minimized.
  • the first protrusion 41 and the second protrusion 42 of the clip 10 gradually approach the outlet of the guide space (ie, the first protrusion 41 and the second protrusion 42 move toward the distal end of the guide surface 51 ).
  • the intersection 73) and the entrance close to the accommodating part, so that the first protruding part 41 and the second protruding part 42 can smoothly enter the accommodating part.
  • the aforementioned distance decreases in the direction towards the distal end of the guide surface 51 , for example by the fact that at least the second portion 53 of the guide surface 51 is substantially arcuate.
  • the restraining force they receive becomes larger and larger, so that the protruding part of the clip 10 is guided by the second part 53 of the guide surface 51 .
  • the moving speed of the protruding portion of the clip 10 is restrained, preventing the protruding portion from passing over the entrance of the accommodating portion due to the excessive speed after leaving the guide space and failing to enter the accommodating portion.
  • first protruding portion 41 and the second protruding portion 42 reach and cross the intersection 73 (ie, the intersection 73 formed by the intersection of the proximal side of the accommodating portion and the second portion 53 of the guide surface 51 ), the stop Under the restraint of the piece 2, they will not continue to move in the original direction so as not to enter the accommodating portion.
  • the first protruding portion 41 and the second protruding portion 42 pass over the intersection 73 and then enter the accommodating portion.
  • the clip 10 moves in place and is in the above-mentioned preparation position, and the clip feeding is completed.
  • the movable part of the stopper 2 can move up and down, under the condition that the distance between the second part 53 of the guide surface 51 and the corresponding stopper 2 decreases in the direction toward the distal end of the guide surface 51 , the While the stopper 2 constrains the protruding part of the clip 10, the movable part of the stopper 2 can make room for the protruding part of the clip 10 through the movement, so that it can leave the guide space and enter the container when it is constrained. set department.
  • the restriction on the protrusion by the stopper 2 can be realized, for example, by the stopper 2 abutting against the protrusion.
  • At least a portion of the first protruding portion 41 and at least a portion of the second protruding portion 42 are respectively accommodated in the accommodating portions, so that the clip 10 maintains a stable position during the closing process of the jaws, that is, during the clip applying process.
  • the accommodating portion is a concave, which helps the first protruding portion 41 and the second protruding portion 42 of the clip 10 to remain in the accommodating portion continuously without being easily disengaged.
  • first protruding portion 41 and the second protruding portion 42 accommodated in the accommodating portion are both subjected to the force exerted by the stopper 2 abutting against them, so that the first protruding portion 41 and the second protruding portion 42 more stable in the receptacle.
  • the above-mentioned force may be, for example, a substantially downward and upward force, or a substantially distant force, which is related to the position where the stopper 2 abuts against the protruding portion.
  • the positions of the first protruding portion 41 and the second protruding portion 42 are stable, so that the clip 10 maintains a stable position during the closing process of the jaws, thereby ensuring the clamping effect.
  • the present invention also includes a clip feeding and retracting mechanism, which is used to prevent the clip feeding drive mechanism from retreating, thereby preventing the clip 10 from retreating. The position of the end remains stable for smooth clip application.
  • the jaw assembly 100 enters the closing process, the first jaw arm 1 and the second jaw arm 1' approach each other until reaching the closing stroke dead point, at which time the jaw assembly 100 completes the closing.
  • the jaw arm cannot exert force on at least one protruding portion through the accommodating portion, resulting in As a result, the clip 10 is twisted or dislocated from the correct position, so that the two clip arms cannot be engaged, resulting in a clamping failure.
  • At least a part of the first protruding part 41 and at least a part of the second protruding part 42 are both accommodated in the accommodating part, thus, during the closing process of the jaw assembly 100, the first jaw arm 1 drives the first clamping arm 31, the The two clamp arms 1' drive the second clamp arm 32 to rotate around the connecting portion so that the first clamp arm 31 and the second clamp arm 32 are close to each other, and finally the first engagement portion of the first clamp arm 31 is engaged with the second clamp arm
  • the second engaging portion of 32 makes the first clamping arm 31 and the second clamping arm 32 fixed to each other.
  • the position of the clip 10 is kept stable, which prevents the clip 10 from undesired movement or twisting, which may lead to snapping failure and clamping failure.
  • the two first protruding portions 41 are both abutted by the stopper 2
  • the two second protruding portions 42 are also abutted by the stopper 2 , which further ensures that The protruding portion is accommodated in the accommodating portion and does not escape from the accommodating portion.
  • the structure of the first clamp arm 1 is different from that of the second clamp arm 1'.
  • the structure of the first clamp arm 1 is the same as that of the previous embodiment.
  • the difference in structure between the second clamp arm 1' and the first clamp arm 1 is that the first part 52 of the guide surface 51 of the first guide portion 15 of the second clamp arm 1' includes a stroke extension structure, and the second clamp arm 1' has a stroke extension structure.
  • the first portion 52 of the guide surface 51 of the second guide portion 16 also includes a stroke extension structure.
  • the stroke extension structure is a dimple 80 .
  • the stroke extension structure makes the stroke of the first gripping arm 31 of the clip 10 longer, and the distance that the second gripping arm 32 moves towards the far side is greater than the distance that the first gripping arm 31 moves towards the far side at the same time, thereby making the clip 10 rotates in the counterclockwise direction in FIG. 39 during the movement, so that the first protruding part 41 and the second protruding part 42 of the clip 10 are on the same vertical line.
  • the state where the two protruding parts 42 are not on the same vertical line thereby avoiding the unbalanced movement of the clip 10 caused by the unbalanced force during the moving process, and also preventing the first protruding part 41 of the first clip arm 31 from entering the container first. shocks received by the Ministry.
  • the first protrusion 41 of the first clip arm 31 is located at the second protrusion of the second clip arm 32 part 42 in the distance.
  • the first guide portion 15 of the second clamp arm 1 ′ and the first portion 52 of the guide surface 51 of the second guide portion 16 may be flush with the upper surface of the bottom portion 11 . .
  • the clamp applier also includes a first elastic element 60 .
  • both the first jaw arm 1 and the second jaw arm 1 ′ include accommodating grooves, and the accommodating grooves are through grooves for accommodating the driving mechanism for feeding the clamp when the jaw assembly 100 is closed, especially the above-mentioned feeding
  • the clip feeding block 231 and part of the elastic push rod 232 of the clip driving mechanism prevent the first jaw arm 1 and the second jaw arm 1 ′ from interfering with the clip feeding driving mechanism when the jaw assembly 100 is closed.
  • the proximal end of the first clamp arm 1 has a protrusion 19 and the cartridge 220 has a hole 404 in which the protrusion 19 is received so that the proximal end of the first clamp arm 1 is pivotally connected to the distal end of the cartridge 220,
  • the proximal end of the second clamp arm 1' is pivotally connected to the distal end of the cartridge 220, one end of the first elastic element 60 is connected to the proximal end of the first clamp arm 1, and the other end is connected to the second clamp arm 1' connected to the proximal end.
  • the elastic force of the first elastic element 60 makes the proximal end of the first clamp arm 1 and the proximal end of the second clamp arm 1' move away from each other, thereby keeping the first clamp arm 1 and the second clamp arm 1' in an open state ( fully open state of the jaw assembly 100).
  • the proximal end of the first forceps arm 1 and the proximal end of the second forceps arm 1' are located in the casing 210. As shown in FIG. 42, the distal end of the casing 210 is connected to the lower surface of the first forceps arm 1 and the second forceps. The upper surface of the arm 1' is fitted.
  • the cannula 210 is driven to move by the jaw drive mechanism, and the distal end of the cannula 210 moves with it. As the distal end of the sleeve 210 moves distally, the distal end of the sleeve 210 cooperates with the lower surface of the first clamp arm 1 and the upper surface of the second clamp arm 1 ′ to drive the first clamp arm 1 and the second clamp arm The 1' pivots so that they approach each other, allowing the jaw assembly 100 to close. After the jaw assembly 100 is closed, the first elastic element is compressed to store energy.
  • the energy accumulated after the first elastic element 60 is compressed is released, and the elastic force of the first elastic element 60 makes the first clamp arm 1
  • the proximal end of the clamp arm 1' and the proximal end of the second clamp arm 1' are far away from each other, so that the first clamp arm 1 and the second clamp arm 1' are opened.
  • the first elastic element 60 is a U-shaped spring. After being compressed, the two arms of the U-shaped spring approach each other to realize energy storage. The U-shaped spring takes up less space, and its elastic force is larger than that of the ordinary spring. The meaning of opening above is the same as opening.
  • the distance may be a direction generally facing the distance, including a longitudinal direction, and also a direction forming a certain angle with the longitudinal direction.
  • the difference between the present embodiment and the first embodiment is that the driving member selectively drives the clip feeding driving mechanism or the clip pushing driving mechanism under the action of the actuating member 330; in the first state, the driving member is separated from the clip pushing driving mechanism, It is combined with the clip feeding driving mechanism to drive the clip feeding driving mechanism to move; in the third state, the driving part is separated from the clip feeding driving mechanism, and is combined with the clip pushing driving mechanism to drive the pushing clip driving mechanism to move.
  • the driving member drives the clip-feeding drive mechanism to move
  • the clip-push drive mechanism does not move backwards to store energy, but does not move at the initial position without any movement; in this way, the clip-feeding action and the clip-pushing action can also be effectively ensured. Actions are not synchronized and no interference occurs.
  • the overall structure of the clamp applicator is simpler.
  • the jaw driving mechanism is sleeved on the clip feeding driving mechanism and the clip pushing driving mechanism, and is used to drive the jaw assembly 100 to close; in the above-mentioned third state, the driving member is combined with the jaw driving mechanism and the clip pushing driving mechanism at the same time to drive
  • the jaw drive mechanism and the push clamp drive mechanism move synchronously.
  • the transmission mechanism has no second state.
  • the clip feeding drive mechanism includes a clip feeding drive tube 402 and a clip feeding assembly connected with the clip feeding drive tube 402.
  • the clip feeding drive tube 402 drives the clip feeding assembly to move, so as to drive the clip 10 to enter the jaw assembly 100.
  • the specific structure is the same as that described above;
  • the mouth driving mechanism includes a jaw driving tube 432 and a sleeve 210 connected with the jaw driving tube 432, and the specific structure is the same as the above;
  • the push-clamp driver is provided with a plurality of side cavities 252 at intervals along the longitudinal direction, each side cavity 252 is correspondingly installed with a push-clamp block 253, and the push-clamp driver drives the push-clamp block 253 to move.
  • the push-clamp drive The component is a push-clamp rod 251, and the specific structure of the push-clamp rod 251 is the same as that described above.
  • the structure of the driving member is the same as the structure of the switching mechanism described above or later, and will not be described here.
  • the push-clamp drive pipe 459 is sleeved on the clamp-feed drive pipe 402 , the push-clamp drive pipe 459 is coaxial with the clamp-feed drive pipe 402 , and the clamp-feeding assembly and the push-clamp drive member are located on both sides of the clamp box 220 Specifically, the clip-feeding assembly is located outside the clip box 220 , and the clip-pushing drive member is located inside the clip box 220 .
  • the proximal end of the push-clamp driving tube 459 is flush with the proximal end of the jaw driving tube 432, and the distal end surface of the driving member is flush with the proximal end surface of the two.
  • the proximal end of the push-clamp drive tube 459 and the proximal end of the jaw drive tube 432 may not be flush.
  • the distance between the distal end surface of the clamp and the push clip driving tube 459 is equal to the distance between the distal end surface of the driving member abutting against the jaw driving tube 432 and the jaw driving tube 432 .
  • the driving member first drives the push-clamp drive mechanism to move to be combined with the jaw drive mechanism, and then drives the jaw drive mechanism and the push-clamp drive mechanism to move synchronously.
  • the jaw driving mechanism is sleeved on the clip feeding driving mechanism and the clip pushing driving mechanism.
  • the distance from the proximal end of the pushing clip driving tube 459 to the distal end of the driving member is smaller than the distance between the proximal end of the jaw driving tube 432 and the driving member.
  • the distance from the distal end in this way, during the movement of the driver, it is first combined with the push-clamp drive tube 459, pushes the push-clamp drive tube 459 to move to the jaw drive drive tube, and then pushes the jaw drive tube 432 and the push-clamp drive tube 459 sports together.
  • the push-clamp drive tube 459 is sleeved on the clip-feed drive tube 402 .
  • the jaw drive mechanism also includes a second reset member 446, such as an elastic element.
  • the elastic element is sleeved on the outside of the jaw driving tube 432, one end is in contact with the baffle 434 on the outer surface of the jaw driving tube 432, and the other end extends forward and is in contact with the inner wall of the shell 321 of the clamp.
  • the energy is stored when the jaw driving mechanism moves forward, and the elastic element recovers and deforms to release the energy so as to provide power for the restoration of the jaw driving mechanism.
  • the push clip driving mechanism also includes a third reset member 456, such as an elastic element.
  • the elastic element is used to store energy when the push-clamp drive mechanism advances, and the elastic element The energy is released by restoring the deformation to provide power for the reset of the push-clamp drive mechanism.
  • the clip feeding driving mechanism further includes a first restoring member 418, such as an elastic element.
  • One end of the elastic element is in contact with the rib 436 on the inner wall of the push-clamp driving tube 459, and the other end extends backwards and abuts against the distal end surface of the clip-feeding driving tube 402.
  • the elastic element is used to store energy when the clip-feeding driving mechanism advances, The elastic element recovers the deformation and releases the energy to provide power for the reset of the clip feeding drive mechanism.
  • the driving element is combined with the jaw drive mechanism and the push-clamp drive mechanism at the same time, and the synchronous movement of the jaw drive mechanism and the push-clamp drive mechanism is taken as an example to introduce how the clamp applier realizes feeding and clamping.
  • the retraction stop end 354 of the clip feeding and retracting mechanism can abut against the clip feeding driving tube 402 after the switching mechanism is separated from the clip feeding driving mechanism to prevent the clip 10 in the jaw assembly 100 from retreating due to the retracting of the clip feeding driving mechanism.
  • the actuating member 330 moves from the middle position to the closed position, and the clip feeding and retracting mechanism is gradually separated from the clip feeding driving tube 402;
  • the mechanism is advanced, the jaw drive tube 432 drives the sleeve 210 forward to close the jaw assembly 100, the clamp drive mechanism is pushed forward to advance the remaining clamps 10 within the cartridge 220 by one station, and the actuator 330 moves to the closed position
  • the jaw assembly 100 is closed (the jaw closing action is completed) and the remaining clips 10 in the clamp box 220 are moved forward by one station (the clamping action is completed)
  • the clip feeding and stopping mechanism is completely separated from the clip feeding drive tube 402
  • the clip feeding driving tube 402 is reset under the action of the first reset member 418 .
  • the actuating member 330 is released, the jaw driving mechanism is reset under the action of the second reset member 446 , and the push-clamp driving mechanism is reset under the action of the third reset member 456 . That is to say, in this working process, the switching mechanism is first separated from the jaw drive mechanism and the push-clamp drive mechanism, and combined with the clamp-feeding drive mechanism to drive the clamp-feeding drive mechanism to move, and then separated from the clamp-feeding drive mechanism, and is combined with the clamp-feeding drive mechanism. The jaw drive mechanism and the push clamp drive mechanism are combined to drive the jaw drive mechanism and the push clamp drive mechanism to move synchronously.
  • the switching mechanism is respectively connected with the driving mechanism for feeding the clip, the driving mechanism for jaws and the driving mechanism for pushing the clip; the switching mechanism is in contact with the actuating member 330 for receiving power; under the action of the actuating member 330, the switching mechanism follows a preset sequence
  • the clip feeding driving mechanism is driven to perform the clip feeding action
  • the jaw driving mechanism is driven to perform the jaw closing action
  • the clip pushing driving mechanism is driven to perform the clip pushing action
  • the number of the actuating members 330 is one.
  • the advantage of this design is that the doctor operates one actuating member 330, which acts on the switching mechanism through the actuating member 330, and then acts on three different driving mechanisms—the driving mechanism for feeding clips, the driving mechanism for jaws and the driving mechanism for pushing clips , so that the three different driving mechanisms can complete the corresponding actions according to the preset sequence. That is, the doctor can operate one actuating member 330 to complete the three actions of the clip feeding action, the jaw closing action and the clip pushing action, and these three actions meet the preset sequence, and there will be no problem of mutual interference, which ensures the doctor's operation.
  • the operation is safe and smooth, and the operation is simple and user-friendly.
  • the three actions of the jaw closing action, the clamping action, and the pushing action cannot be performed at the same time.
  • Jaws closing action, pushing action That is to say, the clip feeding action is executed first, and the jaw closing action and the clip pushing action are executed later. Execute the action of pushing the clamp; it can also be that in the second embodiment, the action of feeding the clamp is performed first, followed by the closing action of the jaws and the action of pushing the clamp.
  • the clamping action resynchronizes the jaw closing action and the pushing action.
  • the push-clamp drive mechanism is connected with the switch mechanism through the matching mechanism, and the push-clip drive mechanism and the switch mechanism move in opposite directions; Under the action, it is first separated from the jaw drive mechanism, and combined with the clip feed drive mechanism to drive the clip feed drive mechanism forward to perform the clip feeding action, and then separated from the jaw drive mechanism and combined with the jaw drive mechanism to drive the jaw drive.
  • the mechanism moves forward to perform the jaw closing action; when the switching mechanism drives the feeding driving mechanism and the jaw driving mechanism to advance, the matching mechanism is simultaneously driven to drive the push-clamp drive mechanism to retreat and store energy; the push-clamp drive mechanism includes a third reset
  • the actuator 456 is used to store the energy; the actuating element 330 is released, and the push-clamp driving mechanism advances under the action of the third reset element 456 to perform the push-clamp action.
  • the structure, positional relationship, connection relationship, motion relationship, etc. of the switching mechanism, the driving mechanism for feeding the clip, the driving mechanism for the jaw and the driving mechanism for pushing the clip are the same as those in the first embodiment, and will not be repeated here.
  • the switching mechanism is first separated from the jaw driving mechanism and the clip driving mechanism, and is combined with the clip feeding driving mechanism to drive the clip feeding driving mechanism to move, and then is combined with the clip feeding driving mechanism.
  • the clip feeding drive mechanism is separated and combined with the jaw drive mechanism and the push clip drive mechanism at the same time to drive the jaw drive mechanism and the push clip drive mechanism to move synchronously; or the switching mechanism is first separated from the jaw drive mechanism and the push clip drive mechanism, and Combine with the clip feeding drive mechanism to drive the clip feeding drive mechanism to move, and then separate from the clip feeding drive mechanism, and combine with the push clip drive mechanism to drive the push clip drive mechanism to move to the jaw drive mechanism to drive the jaw drive mechanism.
  • the structure of the actuating member 330 is the same as the above, and will not be repeated here.
  • FIGS. 46 to 50 it is a third embodiment of the present invention, which is the same as the previous embodiment, and this embodiment relates to a clamp applicator.
  • the first clutch member includes a pivoting block 514.
  • the clutch switching mechanism is the same as that described above.
  • a first groove 524 is provided at the proximal end of the clip feeding drive mechanism.
  • the clutch part is combined with the clip feeding drive mechanism.
  • the second clutch member is the distal end surface of the switching mechanism body 500 .
  • the pivoting block 514 is pivotably disposed on the switching mechanism body 500 .
  • the pivoting block 514 includes a block-shaped body 516 , a first engaging notch 518 located at the lower end of the block-shaped body 516 , and a first rotating shaft located at the rear end of the block-shaped body 516 .
  • the pivot block 514 is pivotally connected to the switching mechanism body 500 through the first rotating shaft 520, the upper end of the pivot block 514 is provided with a hole 404 for installing the guide post 490, and the pivot block 514 passes through the guide post 490 and the guide rail in the housing 321 Slip fit.
  • the first clutch member further includes an elastic piece 522 disposed above the first guide surface 494, the elastic piece 522 provides downward force to the guide column 490, so that the first clutch member can be better combined with the clip feeding driving mechanism.
  • the first engaging notch 518 of the pivoting block 514 remains engaged with the first groove 524 of the clip feeding drive mechanism, the actuating member 330 drives the switching mechanism forward, and the pivoting block 514 moves forward and drives the feeding mechanism.
  • the clip driving mechanism moves to the distal end to perform the clip feeding action.
  • the guide post 490 moves to the second guide surface 496 along the inclined surface 498, the pivot block 514 turns upward around the first rotation shaft 520 to lift the first engaging recess.
  • the opening 518 is separated from the first groove 524, that is, it is separated from the clip feeding driving tube 402.
  • the distal end surface of the switching mechanism body 500 is combined with the proximal end of the jaw driving mechanism, thereby driving the jaw driving mechanism.
  • FIGS. 51 to 54 it is a fourth embodiment of the present invention, which is the same as the previous embodiment, and this embodiment relates to a clamp applicator.
  • the present embodiment is different in the structure of the switching mechanism.
  • the switching mechanism does not include a moving part and a moving guide, and the switching mechanism includes a rotating arm 526 pivotally arranged on the switching mechanism body 500 , wherein the rotating arm 526 includes a rotating arm body 528 and is located on the rotating arm body 526 .
  • the second engaging recess 530 at the lower end of the 528 and the second rotating shaft 532 at the rear end of the rotating arm body 528, the rotating arm 526 is pivotally connected with the switching mechanism body 500 through the second rotating shaft 532, and the switching mechanism body 500 is sleeved on the clip feeding drive mechanism.
  • the second engaging notch 530 of the rotating arm 526 is engaged with the second groove 534 of the clip feeding driving mechanism; the actuating member 330 drives the switching mechanism forward to drive the clip feeding driving mechanism to move to the distal end for feeding. Clamping action, when the rotating arm 526 moves to the proximal end of the jaw drive mechanism, the switching mechanism is continued to be driven, and the inclined surface of the rotating arm 526 is turned upward under the guidance of the proximal guide surface of the jaw drive mechanism, so that the rotating arm The second engaging notch 530 of 526 is disengaged from the second groove 534. At this time, the distal end surface 508 of the switching mechanism moves to be combined with the jaw driving mechanism, thereby driving the jaw driving mechanism to advance.
  • the advantage of this design is that the structure of the switching mechanism is simplified and the overall structure is more compact.

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Abstract

一种施夹钳（1000），钳臂包括导向部，止挡件（2）设置于钳臂，导向部与止挡件（2）形成导向空间。夹子（10）的突出部在导向空间内移动时，具有弹性的止挡件（2）能有效约束夹子（10）的突出部，使得夹子（10）在移动的过程中张开至最大角度，避免了夹子（10）不能充分张开带来的缺陷。钳臂包括容置部，容置部位于钳臂的远端，夹子（10）的突出部的至少一部分位于容置部内，夹子（10）的突出部被具有弹性的止挡件（2）抵接，使得夹子（10）在钳口组件（100）远端的位置保持稳定。

Description

一种施夹钳
相关申请
本申请要求于2020年12月31日提交至中国专利局、申请号为202011639943.0，发明名称为“一种施夹钳”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及医疗器械技术领域，具体涉及施夹钳。
背景技术
夹子，在微创手术中用于夹持包括体内管道在内的组织，体内管道包括血管等，其通过相对设置的两个夹臂的夹持使组织固定于两个夹臂之间，从而起到止血、结扎作用。
施夹钳用于将其容置的夹子施加于组织，以实现夹持。施夹钳包括钳口组件，张开的钳口组件容置有夹子。将组织置于夹子的两个夹臂之间，闭合钳口组件，钳口组件带动夹子的两个夹臂运动，使得两个夹臂相互靠近并卡合在一起，从而实现对于组织的夹持。
现有技术中，在施夹之前，需要将夹子送至钳口组件的远端。夹子在钳口组件内移动的过程中，夹子不能充分张开以恢复其原有形状或者与钳口组件张开的角度保持一致，导致夹子的两个夹臂之间的夹持空间有限，不能很好地容纳待夹持的组织。
现有技术中，夹子在钳口组件的远端不能被有效定位，使其位置发生变化而不能准确卡合，从而不能实现有效夹持。甚至在接触组织时夹子会后退，导致无法施夹。
发明内容
针对现有技术的不足，本发明旨在提供一种施夹钳。本发明通过以下技术方案实现：
一种施夹钳，包括钳口组件和夹子，钳口组件包括钳臂，钳口组件还包括止挡件，止挡件的一部分与钳臂连接，止挡件具有弹性；钳臂包括导向部，止挡件和导向部形成导向空间， 夹子的第一部在导向空间的至少一部分内移动时，止挡件对第一部进行约束。
进一步的，导向部包括导向面，导向面包括第一远端；在初始状态下，包括第一远端在内的至少部分导向面与止挡件之间的距离沿朝向第一远端的方向减小。
进一步的，距离在第一远端处最小。
进一步的，钳臂还包括容置部，容置部位于钳臂的第二远端，容置部用于容置位于钳口组件的第二远端的夹子的第一部的至少一部分。
进一步的，容置部为凹陷。
进一步的，凹陷包括近侧壁和远侧壁，近侧壁与第一远端交会。
进一步的，钳臂还包括容置部，容置部位于钳臂的第二远端，夹子的第一部的至少一部分容置于容置部内，止挡件抵接第一部。
进一步的，包括第一远端在内的至少部分导向面大致为弧形。
进一步的，导向面包括行程延长结构。
进一步的，行程延长结构为凹坑。
进一步的，钳臂包括第一钳臂和第二钳臂，施夹钳还包括夹盒，第一钳臂可枢转地连接于夹盒，第二钳臂可枢转地连接于夹盒；第一钳臂与第二钳臂之间连接有弹性元件。
进一步的，弹性元件为U形弹簧。
进一步的，止挡件包括基部和活动部，基部与钳臂连接，活动部和导向部形成导向空间。
进一步的，钳臂包括第一钳臂和第二钳臂，第一钳臂包括两个导向空间，第二钳臂包括两个导向空间；第一部包括第一突出部和第二突出部，夹子包括第一夹臂和第二夹臂，第一夹臂包括两个第一突出部，第二夹臂包括两个第二突出部；夹子在钳口组件内移动时，两个第一突出部一一对应地位于第二钳臂的两个导向空间内，两个第二突出部一一对应地位于第一钳臂的两个导向空间内。
一种施夹钳，包括钳口组件和夹子，钳口组件包括钳臂，其特征在于，钳口组件还包括止挡件，止挡件的一部分与钳臂连接，止挡件具有弹性；钳臂包括容置部，容置部位于钳臂的第一远端；响应于夹子位于钳口组件的第一远端，夹子的第一部的至少一部分容置于容置部，止挡件抵接第一部。
进一步的，容置部为凹陷。
进一步的，钳臂包括第一钳臂和第二钳臂，施夹钳还包括夹盒，第一钳臂可枢转地连接于夹盒，第二钳臂可枢转地连接于夹盒；第一钳臂与第二钳臂之间连接有弹性元件。
进一步的，弹性元件为U形弹簧。
进一步的，钳臂还包括导向部，止挡件和导向部形成导向空间，夹子的第一部在导向空间的至少一部分内移动时受到约束。
进一步的，导向部包括导向面，导向面包括第二远端；在初始状态下，包括第二远端在内的至少部分导向面与止挡件之间的距离沿朝向第二远端的方向减小。
进一步的，距离在第二远端处最小。
进一步的，包括第二远端在内的至少部分导向面大致为弧形。
进一步的，止挡件包括基部和活动部，基部与钳臂连接，活动部和导向部形成导向空间。
本发明提供的施夹钳，钳臂包括导向部，止挡件设置于钳臂，导向部与止挡件形成导向空间。夹子的突出部在导向空间内移动时，具有弹性的止挡件能有效约束夹子的突出部，使得夹子在移动的过程中张开至最大角度，避免了夹子不能充分张开带来的缺陷。
本发明提供的施夹钳，钳臂包括容置部，容置部位于钳臂的远端，夹子的突出部的至少一部分位于容置部内，夹子的突出部被具有弹性的止挡件抵接，使得夹子在钳口组件远端的位置保持稳定。
附图说明
图1是本发明第一实施例提供的施夹钳的立体示意图；
图2是图1所示的施夹钳的部分壳体被隐藏后的正视图；
图3是图1所示的施夹钳的部分壳体被隐藏后的立体示意图；
图4A是图1所示的施夹钳的夹子的正面结构示意图；
图4B是图1所示的施夹钳的夹子的侧面结构示意图；
图5是图1所示的施夹钳的钳口组件和杆身组件的立体分解图；
图6是图1所示的施夹钳的钳口驱动机构的结构示意图；
图7是图6所示的部分钳口驱动机构的立体分解图；
图8是图1所示的施夹钳的送夹驱动机构的结构示意图；
图9是图8所示施夹钳的送夹驱动机构的立体分解图；
图10是图1所示的施夹钳的推夹驱动机构的推夹杆与配接块的正视图；
图11是图10所示的施夹钳的推夹驱动机构的推夹杆的立体示意图；
图12至图14是图1所示的施夹钳的传动机构的状态变化示意图；
图15A是图1所示的施夹钳的扳手在打开位置时钳口组件和杆身组件在图15B的 M-M视角的剖面图；
图15B是图1所示的施夹钳的扳手在打开位置时钳口组件和杆身组件在图15A的L-L视角的剖面图；
图16A是图1所示的施夹钳的扳手在中间位置时钳口组件和杆身组件在图16B的M-M视角的剖面图；
图16B是图1所示的施夹钳的扳手在中间位置时钳口组件和杆身组件在图16A的L-L视角的剖面图；
图17A是图1所示的施夹钳的扳手在闭合位置时钳口组件和杆身组件在图17B的M-M视角的剖面图；
图17B是图1所示的施夹钳的扳手在闭合位置时钳口组件和杆身组件在图17A的L-L视角的剖面图；
图18是图1所示的施夹钳的部分切换机构的一视角的立体分解图；
图19是图1所示的施夹钳的部分切换机构的另一视角的立体分解图；
图20是图1所示的施夹钳的旋钮装配部分传动机构的结构示意图；
图21是图1所示的施夹钳的配接机构的结构示意图；
图22是图1所示的施夹钳的配接块装配第二配接件的分解示意图；
图23A是图1所示的施夹钳的送夹块的运动过程示意图；
图23B是图23A所示的施夹钳的送夹块的运动轨迹示意图；
图24A是图1所示的施夹钳的推夹块的运动过程示意图；
图24B是图24A所示的施夹钳的推夹块的运动轨迹示意图；
图25是图2所示的施夹钳的扳手的结构示意图；
图26是图25所示的施夹钳的扳手的导引通道的结构分解示意图；
图27是图2所示的施夹钳的导向枢转件的结构示意图；
图28是图2所示的施夹钳的导向枢转件与扳手锁止弹簧元件的装配示意图；
图29是图2所示的施夹钳的路径切换件的结构示意图；
图30是图1所示的施夹钳的部分的壳体的内部结构示意图；
图31A是图2所示的施夹钳的扳手在打开位置时扳手锁止机构的状态图；
图31B是图2所示的施夹钳的扳手正向运动至中间位置时扳手锁止机构的状态图；
图31C是图2所示的施夹钳的扳手在闭合位置时扳手锁止机构的状态图；
图31D是图2所示的施夹钳的扳手复位运动至中间位置时扳手锁止机构的状态图；
图32是图1所示的施夹钳的关于路径切换件的一视角的剖视图；
图33A是图1所示的施夹钳的扳手在打开位置时路径切换件的状态图；
图33B是图1所示的施夹钳的扳手正向运动至第一临近位置时路径切换件的状态图；
图33C是图1所示的施夹钳的扳手在闭合位置时路径切换件的状态图；
图33D是图1所示的施夹钳的扳手复位运动至第二临近位置时路径切换件的状态图；
图34是图1所示的施夹钳的钳口组件的结构示意图；
图35是图34所示的钳口组件的第一夹臂或者第二夹臂的结构示意图；
图36是图34所示的钳口组件的一视角的剖视图；
图37是图34所示的钳口组件的止挡件与夹子配合的结构示意图；
图38是图34所示的钳口组件的止档件的结构示意图；
图39是图34所示的钳口组件的另一视角的剖视图；
图40是图34所示的钳口组件装配夹盒的剖视图；
图41是图34所示的钳口组件处于闭合状态的示意图；
图42是图34所示的钳口组件处于打开状态的示意图；
图43至图45是本发明第二实施例提供的施夹钳的部分传动机构的状态变化示意图；
图46是本发明第三实施例提供的施夹钳的部分切换机构的立体分解图；
图47至图50是本发明第三实施例提供的外科器械的部分传动机构的状态变化示意图；
图51是本发明第四实施例提供的施夹钳的切换机构的立体分解图；
图52至图54是本发明第四实施例提供的施夹钳的部分传动机构的状态变化示意图。
其中，上述附图包括以下附图标记：
1、第一钳臂；1’、第二钳臂；10、夹子；11、底部；12、第一侧部；13、第二侧部；14、缺口；15、第一导向部；16、第二导向部；17、第一容置部；18、第二容置部；19、突起；2、止挡件；21、第一止挡件；22、端部；23、基部；25、中间部；31、第一夹臂；32、第二夹臂；33、连接部；35、第一卡合部；36、第二卡合部；41、第一突出部；42、第二突出部；51、导向面；52、第一部分；53、第二部分；60、第一弹性元件；71、近侧面；72、远侧面；73、交会处；80、凹坑；100、钳口组件；200、杆身组件；210、套管；220、夹盒；221、底壁；221a、第一底壁；221b、第二底壁；222、第一侧壁；223、第二侧壁；224、开口；225、横向倒刺；231、送夹块；232、弹性推杆；233、送夹杆；240、基座；241、导向槽；242、块槽；243、导引斜面；250、推夹座；251、 推夹杆；252、侧腔；253、推夹块；254、弹性件；255、转轴；300、操作组件；310、旋钮；312、凸出部；314、凹槽；316、销柱；318、阻尼件；320、主体；321、壳体；330、致动件；331、扳手主体；332、按压部；333、推动部；334、枢转端；340、导引通道；341、主通道；342、开口部；342a、起始点；342b、终止点；343、从通道；344、阻挡壁；345、引导壁；350、导向枢转件；351、导向件；352、枢接端；353、受力端；354、止退端；355、扳手锁止弹性元件；360、路径切换件；361、枢转部；362a、第一触发部；362a’、第一板；362b、第二触发部；362b’、第二板；363、执行部；363’、肋；370、路径驱动件；371、第一导向肋；372、第一导向斜面；373、第二导向肋；374、第二导向斜面；381、第一定位件；382、第二定位件；383、第一凹坑；384、第二凹坑；385、凸起部；402、送夹驱动管；404、孔；406、折弯部；408、容置槽；410、卡接部；412、弧形凹陷部；414、凸耳；416、第一销孔；418、第一复位件；420、第一腰形孔；422、第一环形槽；432、钳口驱动管；434、挡板；436、凸筋；438、第二环形槽；440、凸起；442、环形片；444、凹口；446、第二复位件；448、第二腰形孔；452、配接块；454、第二止挡部；456、第三复位件；458、第三腰形孔；459、推夹驱动管；462、上齿条；464、第一齿轮；466、第二齿轮；468、下齿条；470、限位面；472、第一引导槽；474、第二引导槽；482、卡块；484、弧形面；486、抵接面；490、导向柱；494、第一引导面；496、第二引导面；498、斜面；500、切换机构本体；502、近端面；504、驱动面；506、第一止挡部；508、远端面；510、第一通孔；512、第二通孔；514、枢转块；516、块状本体；518、第一卡合凹口；520、第一转轴；522、弹片；524、第一凹槽；526、转臂；528、转臂本体；530、第二卡合凹口；532、第二转轴；534、第二凹槽；1000、施夹钳。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
外科器械的用户可以为临床医生，医生在手术中操作外科器械来进行手术。本文所用术语“近”、“后”和“远”、“前”是相对于操纵外科器械的临床医生而言的。术 语“近”、“后”是指相对靠近临床医生的部分，术语“远”、“前”则是指相对远离临床医生的部分。“左”、“右”以图1所示的外科器械的位置为参考，例如，钳口组件在“左”，套管210在“右”。术语“上”、“下”以钳口组件的上钳口和下钳口的相对位置为参考，具体的，上钳口在“上”，下钳口在“下”。需要理解的是，“近”“后”“远”“前”“左”“右”“上”“下”这些方位是为了方便描述而进行的定义，然而，外科器械可以在许多方向和位置使用，因此这些表达相对位置关系的术语并不是受限和绝对的。
在本发明中，除非另有明确的规定和限定，“相连”、“连接”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，还可以是可运动连接，或成一体；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。需要说明的是，在“相连”、“连接”前有限定语时，其具有相应限定语所限定的含义，只排除明显需要排除的情形，不排除其它可能的情形，如“可拆卸地连接”指的是可拆卸式的连接，不包括固定连接和成一体，但可运动连接、直接相连、通过中间媒介物间接相连并不排除在外。
下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。本文所用术语“轴向”或“纵向”是指套管210的长度方向。
图1至图42示出了本发明第一实施例的外科器械，具体是一种连续施夹的施夹钳，用于将夹子10施加到人体上，例如血管或除血管以外的其它组织。按照总体的位置关系，施夹钳1000包括操作组件300、自操作组件300延伸的杆身组件200及设置于杆身组件200一端的钳口组件100。为连续施加多个夹子10，施夹钳1000需执行三个动作：送夹动作、钳口闭合动作(施夹动作)和推夹动作，且送夹动作必然接续有钳口闭合动作。使用一次施夹钳1000，需要完成上述三个动作。施夹钳1000使用的次数，取决于其中容纳的夹子的数量。
操作组件300包括主体320和可活动地安装在主体320上的扳手(致动件330)，主体320包括壳体321，扳手可活动地连接壳体321，壳体321按位置关系分为大致纺锤型的筒状的头部壳体和从头部壳体的下侧延伸出的手柄壳体，手柄壳体和扳手组成手柄组件，用户可以单手掌握手柄壳体，手指拉动扳手，使得扳手相对主体320而运动。施夹钳还包括传动机构，部分传动机构收容于操作组件300的壳体321内，部分传动机构位于杆身组件200。
为实现送夹动作、钳口闭合动作(施夹动作)和推夹动作，传动机构包括有送夹驱动机构、钳口驱动机构和推夹驱动机构，扳手驱动传动机构运动，从而驱动送夹驱动机构、钳口驱动机构和推夹驱动机构运动，送夹驱动机构执行送夹动作，钳口驱动机构执行钳口闭合动作(施夹动作)，推夹驱动机构执行推夹动作，具体细节将在下文详细展开描述。
如图4A-4B、图37所示，施夹钳的夹子10包括第一夹臂31、第二夹臂32和连接部33，连接部33位于第一夹臂31与第二夹臂32之间，两个夹臂可以围绕该连接部33彼此相对枢转。第一夹臂31包括两个第一突出部41，第二夹臂32包括两个第二突出部42，第一夹臂31还包括第一卡合部35，第二夹臂32还包括第二卡合部36。夹子10的第一夹臂31、第二夹臂32在外力的驱动下彼此相互接近，最终将第一卡合部35卡合于第二夹臂32的第二卡合部36，从而使得第一夹臂31与第二夹臂32相互固定，实现对位于第一夹臂31与第二夹臂32之间的组织的夹持，此时第一夹臂31和第二夹臂32结合。定义夹子10的第一夹臂31与第二夹臂32相互结合时夹子10处于闭合状态/锁定状态，夹子10的第一夹臂31与第二夹臂32相互脱离时夹子10处于打开状态。第一卡合部35为设置在第一夹臂31的远端的尖端部分，第二卡合部36为设置在第二夹臂32的远端的弯曲的C型钩部。
钳口组件100包括分别可枢转地相连于杆身组件200的第一钳臂1和第二钳臂1’，第一钳臂1和第二钳臂1’之间可支撑一个夹子10，钳口组件100在打开状态和闭合状态之间切换。在打开状态下，钳口组件100夹持一个打开状态的夹子10，由于结构的限制，钳口组件100不能无限制的打开，钳口组件100的打开状态包括一个打开到底状态，此时第一钳臂1的远端和第二钳臂1’的远端在上下方向的距离最大，钳口组件100在闭合状态下，第一钳臂1和第二钳臂1’的远端在上下方向的距离最小，钳口组件100的闭合使得夹子10由打开状态转变为闭合状态。钳口近端驱动件驱动套管210(钳口远端驱动件)向前和向后移动，具体的方式见后文所述钳口驱动机构的运动方式。套管210向前移动使得钳口组件100闭合运动以闭合钳口组件100，第一钳臂1和第二钳臂1’压缩位于其中的夹子10，套管210的向后运动使得钳口组件100打开运动以打开钳口组件100。
杆身组件200包括夹盒220、基座240、送夹组件、推夹组件和套设于夹盒220、送夹组件、推夹组件的套管210。送夹组件属于送夹驱动机构，推夹组件属于推夹驱动机构，套管210属于钳口驱动机构。
夹盒220的第一端(远端)连接钳口组件100，与第一端相对的第二端(近端)固定连接于主体320，夹盒220内至多可容纳M个夹子10，M大于等于2，这与夹盒220的尺寸相关。当使用一次施夹钳后，夹盒220中的夹子10就会减少一个。夹盒220中容纳有N个夹子10时，N小于等于M，N个夹子10从第一端向第二端顺序布置，分别为第一夹子、第二夹子至第N夹子。第一夹子最靠近第一端，最先被送入钳口组件100。定义夹盒220中第一夹子以外的夹子为其它夹子。夹盒220内包括M个工位，从夹盒220的远端向近端布置，分别为第一工位、第二工位、……第M工位，第一夹子位于最前端的第一工位，第二夹子至第N夹子相应的顺序布置在第二工位至第N工位。
夹盒220具有底壁221，底壁221沿其长度形成有多个横向倒刺225，朝向夹盒220的远端并向夹盒220内倾斜，横向倒刺225等间距布置，横向倒刺225的远端为倾斜末端。夹子10沿轴向向前移动时，夹子10滑动接触前方的横向倒刺225使其向底壁221弯曲以顺利通过该横向倒刺225，从而使得夹子10从当前工位进入相邻的前端工位；横向倒刺225的倾斜末端抵住夹子10后侧来禁止夹子10后退，从而禁止夹子10从当前工位进入相邻的后端工位。由此可知，横向倒刺225具有单向锁定功能，避免夹子10在相邻的工位之间发生后退。
本实施例中，相邻的两个工位之间布置有第一横向倒刺和第二横向倒刺，第一横向倒刺在夹子10后方卡住一个第一突出部41的时刻，第二横向倒刺在夹子10后方卡住同一个夹子10的同侧的第二突出部42，以阻止夹子10在夹盒220中从当前工位进入相邻的后端工位。本实施例中具有多个第一横向倒刺和多个第二横向倒刺，分两列布置在底壁221的宽度上两侧，每列上的相邻横向倒刺225轴向等间距。
本实施例中，杆身组件200处的夹盒220、送夹组件和推夹组件形成特殊的三层设计，具体细节如下。
夹子10处于打开状态时，第一夹臂31和第二夹臂32之间形成夹合面。送夹组件用于抵接并推动第一夹子向前运动以进入钳口组件100；推夹组件用于抵接并推动第二夹子至第N个夹子向前运动；钳口组件100用于从夹盒220接收到一个夹子10(第一夹子)并执行闭合动作以压缩夹子10至闭合状态。送夹组件位于夹子10的夹合面的第一侧，推夹组件位于夹子10的夹合面的第二侧，第一侧不同于第二侧。送夹组件和推夹组件为独立的部件，分别位于至少一个夹子10的两侧，从两侧独立地推动第一夹子或其它夹子，从而送夹的前进长度和推夹的前进长度不需要相等，钳口组件100的尺寸设计和夹盒220的尺寸设计可以相互独立，为独立的优化钳口组件100结构和夹盒220结构提 供了设计空间，也为优化推夹组件和送夹组件自身结构提供了设计空间，施夹钳结构简单，尺寸更紧凑。
现有技术中，采用一体推送片，送夹片和推夹片必须是片状，否则送夹片和推夹片在后退时会与夹子10碰撞干扰，但片状结构刚性不足容易弯折，导致送夹和推夹均不稳定，且一体成形，对生产工艺要求高；钳口组件100的尺寸设计要满足送夹的前进长度，夹盒220中相邻两个夹子10的距离等于推夹的前进长度，这种推夹和送夹同步执行的推送片，送夹的前进长度和的推夹的前进长度相等，造成钳口组件100的尺寸设计和夹盒220的尺寸设计必须相互匹配，施夹钳尺寸不紧凑，设计复杂，例如夹盒220中相邻夹子10的距离不能过于小，否则钳口组件100的尺寸过小不满足稳定夹持住第一夹子，钳口组件100的尺寸也不能过于大，否则夹盒220相邻夹子10的距离大导致夹盒220尺寸长，施夹钳的整体尺寸大。本实施例的送夹组件和推夹组件分体的方式下，夹盒220内的夹子10之间的距离可以设计的足够小，不需要考虑推夹组件前进的长度，钳口组件100的夹子10的活动通道可以设计的足够长，以满足稳定的导向、夹持和压缩夹子10，不需要受到夹子10之间的距离的限制；另外，送夹组件和推夹组件可以单独设计至足够刚性来解决现有技术的无法稳定推动夹子的问题。
第一夹臂31和第二夹臂32分别具有中心线，夹子10包括平行的第一侧表面和第二侧表面，由于夹子10在打开状态大致为C型，打开状态下的第一侧表面和第二侧表面均为C型。在一种确定方式中，夹合面为第一夹臂31和第二夹臂32的两个中心线形成的一个面，该面的两侧即上述的分别布置送夹组件和推夹组件的夹合面的第一侧和第二侧。在另一种确定方式中，C型的第一侧表面形成有第一夹合面，第二侧表面形成第二夹合面，第一夹合面和第二夹合面之间为内侧，第一夹合面和第二夹合面的两个外侧即上述的分别布置送夹组件和推夹组件的夹合面的第一侧和第二侧。
本实施例中，夹子10安装在夹盒220内时，夹子10的两个夹臂分别被第一侧壁222和第二侧壁223抵住而被压缩，但未被压缩至闭合状态，夹平面平行于底壁221，多个夹子10的多个夹合面处于同一个平面上。在其它实施例中，多个夹子10可以在夹盒220中倾斜布置，多个夹子10的夹合面不处于同一平面上，但多个夹子10的夹合面相互平行，送夹组件和推夹组件仍然相对于每个夹合面，布置在该夹合面的第一侧和第二侧。
夹盒220包括长度方向上延伸的底壁221以及相对的第一侧壁222和第二侧壁223，以形成大致C型的结构。夹盒220容纳夹子10时，夹子10的夹合面平行于底壁221；送夹组件位于夹盒220的底壁221的外侧，推夹组件位于夹盒220的底壁221的内侧。 如此，送夹组件和推夹组件分别从夹盒220的两侧单独的推动第一夹子和其它夹子，套管210内、在夹盒220两侧的空间被充分利用，推夹组件和送夹组件的设计自由度提高，施夹钳结构更加稳定紧凑。底壁221的内侧和外侧指底壁221所在平面的两侧，并且夹子10、第一侧壁222和第二侧壁223位于底壁221的内侧。
夹盒220的底壁221上开有一个开口224，开口224靠近底壁221的远端设置，送夹组件从开口224进入夹盒220并位于第一夹子和第二夹子之间。开口224保证了送夹组件能顺利进入和退出夹盒220，并进入第一夹子和第二夹子之间，从而在第一夹子的后端抵接第一夹子来推动其前进。优选地，开口224的一部分位于第一工位，另一部分位于第二工位。
送夹组件包括弹性推杆232和连接在弹性推杆232一端的送夹块231，送夹块231用来抵接和推动第一夹子；基座240上设有收容送夹组件且供其轴向运动的通道，通道包括轴向延伸的导向槽241和与导向槽241连通的块槽242，块槽242包括导引斜面243，导引斜面243与轴向呈角度设置。具体的，在基座240与夹盒220安装在一起时，导引斜面243朝向远端且向夹盒220倾斜，弹性推杆232由多个金属薄片叠合而成，具有弹性，可以弯曲。初始时刻，送夹块231与弹性推杆232沿轴向平行，导向槽241容纳弹性推杆232，块槽242容纳送夹块231，导向槽241引导弹性推杆232沿着轴向运动，导引斜面243引导送夹块231进入开口224。具体的，当弹性推杆232沿着导向槽241轴向向前运动时，前端的送夹块231抵触到导引斜面243时，弹性推杆232开始弯曲，送夹块231沿着导引斜面243倾斜地进入夹盒220的开口224，从而在第一夹子的后端抵接第一夹子来推动其前进，然后，弹性推杆232沿着导向槽241轴向向后运动，带动送夹块231沿着导引斜面243从开口224退回至块槽242内。基座240具有较强的刚性，其通道收容送夹组件，保证了初始时刻送夹组件在施夹钳内稳定可靠的布置，同时，导向槽241给弹性的弹性推杆232提供了固定通道，限制其运动空间，避免弹性推杆232运动时发生过度弯曲甚至弯折，堵塞在套管210内，影响送夹功能。相对于现有技术中倾斜的送夹片，刚性的导引斜面243保证了送夹块231移动的稳定性。夹盒220的底壁221还包括位于开口224的前端的第一底壁221a和位于开口224的后端的第二底壁221b；基座240安装到夹盒220时，导引斜面243与第一底壁221a相接。导引斜面243与第一底壁221a相接指直接连接，基本没有空隙，可以保证送夹块231无阻碍的顺利进入开口224，不会被意外卡住。送夹块231的厚度大于弹性推杆232的厚度。弹性推杆232采用薄而有弹性的结构，保证了自身能够沿着导引斜面243而弯曲，使得送夹块231能够沿 着导引斜面243运动。而送夹块231的厚度大，则送夹块231的强度大，不易产生变形，并且由于较大的厚度，送夹块231在远端形成一个与夹子10接触的第一抵接面，第一抵接面具有较大的面积，能够稳定地推动第一夹子。优选地，送夹块231和弹性推杆232是独立的零件，可选择焊接固定。
送夹组件还包括轴向延伸的送夹杆233，送夹杆233的一端连接弹性推杆232，另一端连接操作组件300，导向槽241容纳送夹杆233。操作组件300驱动送夹杆233轴向移动，从而送夹杆233带动弹性推杆232和送夹块231一起移动。送夹杆233为圆柱杆或方形杆等类似结构，区别于弹性的弹性推杆232，送夹杆233的刚性强，不易发生形变，避免了弹性推杆232在轴向运动时容易在导向槽241内弯折而造成送夹组件阻滞，提高了送夹组件运动的稳定性。
基座240的导向槽241还容纳送夹杆233并引导送夹杆233沿着轴向运动。送夹杆233沿着基座240的导向槽241规划的路径而轴向移动，增强了送夹杆233的轴向移动的稳定性。推夹组件为推夹座250，推夹座250包括推夹块253、弹性件254、和推夹杆251，推夹杆251设置有侧腔252，侧腔252或推夹块253设置有转轴255，推夹块253通过转轴255可旋转地安装到侧腔252内。推夹块253包括抵接端，抵接端可抵接并推动夹子10前进，抵接端设置在推夹块253的远端，弹性件254一端连接推夹块253，另一端连接推夹杆251，弹性件254提供给推夹块253一个朝向侧腔252的外侧转动的力，具体为使推夹块253的抵接端朝着夹子10倾斜。本实施例中，对应上述多个工位，推夹杆251上间隔设置有多个侧腔252，每个侧腔252中均设置有一个弹性件254和一个推夹块253，在推夹组件沿轴向前进时，多个推夹块253的抵接端分别抵接并推动一个夹子10前进，在推夹组件沿轴向后退时，推夹块253受夹子10挤压而向侧腔252内转动，避开了夹子10，从而避免了推夹块253在后退的时候带着夹子10后退。推夹块253具有一定的厚度，使得推夹块253的抵接端为具有一定面积的第二抵接面，保证了与夹子10抵接的稳定性。抵接端还可设置为凹部，夹子10的夹臂正好卡入凹部，进一步增强了抵接的稳定性。推夹组件即本发明中的推夹远端驱动件。
夹盒220的第一侧壁222和第二侧壁223上分别设有凸出的第一卡条和第二卡条，推夹座250的推夹杆251的上下面分别设有与第一卡条和第二卡条配合的第一卡槽和第二卡槽，从而推夹座250以可滑动的方式安装到夹盒220内。
进一步的，操作组件300还包括配接机构，致动件330用于给送夹组件和推夹组件提供动力，配接机构包括第一配接件、中间件和第二配接件，所述第一配接件通过中间 件驱动第二配接件，送夹组件与第一配接件连动，推夹组件与第二配接件连动，第一配接件的运动方向与第二配接件的运动方向相反。具体的配接机构的结构、运动过程以及配接机构与送夹组件和推夹组件的连动方式，在下文详细描述，且益处同下文所示，不再赘述。
本实施例中，传动机构包括送夹驱动机构及钳口驱动机构，送夹驱动机构用于驱动夹子10进入钳口组件100内，钳口驱动机构用于驱动钳口组件100运动。传动机构还包括切换机构，用于选择性地驱动送夹驱动机构或者钳口驱动机构；传动机构包括第一状态和第二状态，在第一状态时，切换机构与钳口驱动机构分离，且与送夹驱动机构结合以驱动送夹驱动机构运动；在第二状态时，切换机构与送夹驱动机构分离，且与钳口驱动机构结合以驱动钳口驱动机构运动。本实施例中，在切换机构驱动送夹驱动机构运动时，钳口驱动机构未被驱动处于静止状态，当切换机构与送夹驱动机构分离后，送夹驱动机构不再前进，切换机构与钳口驱动机构结合以驱动钳口驱动机构运动，该过程中能量被择一地传递给送夹驱动机构或钳口驱动机构，因此能耗少，医生操作致动件330所需的力也相应减小，操作更加舒适，从而更好地操作施夹钳，提高产品体验感。另外送夹驱动机构与钳口驱动机构的运动独立且分时进行，也可以防止因二者联动而带来的其他问题，如结构复杂，运动关系复杂等。
切换机构包括第一离合机构和第二离合机构，第一离合机构与第二离合机构连接，切换机构在致动件330作用下运动时，第一离合机构与第二离合机构一起运动；在第一状态时，第一离合机构与送夹驱动机构结合以驱动送夹驱动机构运动，第二离合机构与钳口驱动机构分离；在第二状态时，第一离合机构与送夹驱动机构分离，第二离合机构与钳口驱动机构结合以驱动钳口驱动机构运动。具体地，第一离合机构包括第一离合件以及离合切换机构；第一离合件与离合切换机构连接；在第一状态时，第一离合件与送夹驱动机构结合；在第二状态时，第一离合件与送夹驱动机构分离。第二离合机构包括第二离合件，第二离合件与第一离合机构连接，为了使得切换机构的结构更加简单、紧凑，第二离合件为第一离合机构的远端部，具体地，为第一离合件的远端部。一实施例中，第一离合机构的远端部即为其远端面；在第一状态时，第一离合机构的远端面与钳口驱动机构的近端面分离，在第二状态时，第一离合机构的远端面与钳口驱动机构的近端面结合。另一实施例中，第一离合机构的远端部即为凸设于其远端的钩部，钳口驱动机构的近端设置有与该钩部型配的凹槽，在第一状态时，该钩部未插入于钳口驱动机构的凹槽，在第二状态时，该钩部插入于钳口驱动机构的凹槽以推动钳口驱动机构运动。
离合切换机构包括运动件和运动引导件，运动件与第一离合件连接；运动件被运动引导件引导从第一位置运动至第二位置时，第一离合件与送夹驱动机构由结合状态切换为分离状态。具体地，运动件为与第一离合件连接的导向柱490，运动引导件为设置于壳体321内的导轨，导向柱490能够在导轨上移动。施夹钳的头部壳体包括第一头部壳体和第二头部壳体，第一头部壳体和第二头部壳体轴向对称设置，导轨择一地设置在第一头部壳体内壁或第二头部壳体内壁。为了使得导向柱490在导轨上的运动更加平稳，导轨对称设置在第一头部壳体和第二头部壳体内壁。导轨包括第一引导面494、高于第一引导面494的第二引导面496；导向柱490在第一位置时位于第一引导面494上，在第二位置时位于第二引导面496上。第一引导面494通过斜面498与第二引导面496平滑连接，使得运动件的运动更加顺畅。导向柱490能够跟随第一离合件的运动而在导轨上运动，导向柱490在第一引导面494上运动时，第一离合件与送夹驱动机构保持结合状态，由于壳体321内设置的导轨具有不同的高度，运动件运动至导轨的第二引导面496上时，带动第一离合件向上移动至与送夹驱动机构分离，且当第一离合件与送夹驱动机构分离时，第一离合机构的远端部与钳口驱动机构的近端部结合以推动钳口驱动机构运动。这样设置的好处是，一方面离合切换机构结构简单，无需增加额外的装置，且充分利用壳体321内部空间，结构紧凑；另一方面功耗少，操作顺畅省力。
切换机构具有切换机构本体500，为了使得切换机构的整体结构更加紧凑，充分地利用施夹钳内部的空间，也为了使得切换机构的运动更加平稳顺畅，将部分第一离合机构容置于该切换机构本体500内。具体地，该切换机构本体500包括近端面502、远端面508、贯穿该近端面502和远端面508的第一通孔510以及贯穿切换机构上端面和第一通孔510上弧面的第二通孔512；第一通孔510，用于送夹驱动机构穿行；第二通孔512，用于收容第一离合件。第二离合件为切换机构本体500的远端部，同上所述该远端部可以为远端面508。在第一状态时，切换机构的远端与钳口驱动机构的近端间隔设置；在第二状态时，切换机构的远端与钳口驱动机构的近端配接。其中，第一离合件包括卡块482，收容于第二通孔512，送夹驱动机构包括卡槽，卡块482与卡槽相配合，以将第一离合件与送夹驱动机构结合。卡块482包括第一端和从第一端沿垂直于纵向方向延伸的第二端；第一端与导向柱490连接，第二端与卡槽可分离地连接；第一离合件还包括弹性元件，如弹簧，在第一状态时，弹性元件给卡块482以向下的力，使卡块482与卡槽抵接，使得第一离合件能够很好地与送夹驱动机构结合，提高送夹动作的稳定性。本实施例中，为了使得整体结构更加简单、紧凑，卡槽为设置在送夹驱动机构近端外周面 上的第一环形槽422，卡块482的第二端包括与第一环形槽422的底面形配的弧形面484、与弧形面484连接的抵接面486，抵接面486与第一环形槽422的端面相抵接，通过弧形面484与第一环形槽422底面的配合，以及抵接面486与第一环形槽422端面的配合使得卡块482能够更好地推动送夹驱动机构。当然，在其他实施例中，第一离合件也可以包括凹槽，送夹驱动件包括与其型配的凸起。
在本实施例中，切换机构套设于送夹驱动机构，在第一状态时，切换机构与钳口驱动机构间隔设置，在外力作用下推动送夹驱动机构前进，送夹驱动机构的近端面与钳口驱动机构的近端面逐渐靠近；在第二状态时，切换机构与送夹驱动机构分离，与钳口驱动机构配接以驱动钳口驱动机构前进，钳口驱动机构的近端面与送夹驱动机构的近端面逐渐远离。为了使得传动机构的整体布局更加合理，结构更加紧凑，也为了增大切换机构与钳口驱动机构的接触面积使得驱动更加稳定，将钳口驱动机构套设于送夹驱动机构，即送夹驱动机构部分位于钳口驱动机构内，能够在钳口驱动机构内穿行；送夹驱动机构、钳口驱动机构在切换机构作用下沿纵向方向运动，送夹驱动机构在垂直于纵向方向的平面上的投影位于钳口驱动机构在该平面的投影的内部，钳口驱动机构在该平面的投影位于切换机构在该平面的投影的内部。
致动件330，用于给传动机构提供动力，具体地，致动件330与切换机构抵接，进而驱动切换机构运动，切换机构将该动力择一地传递给送夹驱动机构或者钳口驱动机构；切换机构的近端具有驱动面504和第一止挡部506，其中驱动面504与致动件330抵接以接收该动力，第一止挡部506用于对致动件330限位。其中驱动面504为第一止挡部506与切换机构表面形成的凹陷面，致动件330的头部与该凹陷面抵接。为了使得致动件330施加给切换机构的力更加均匀，使其平稳前进，第一止挡部506对称设置在切换机构近端其行进方向的两侧，相应地致动件330具有握持部，及从握持部向壳体内部延伸且对称设置的推爪，两个推爪分别与切换机构两侧的驱动面504抵接。第一止挡部506凸出设置于切换机构的外表面且沿纵向方向延伸，施夹钳的第一头部壳体和第二头部壳体内壁对称设置有与第一止挡部506形配的引导槽，第一止挡部506能够在引导槽内沿纵向方向移动，且引导槽能够对第一止挡部506的高度方向进行限位，这样能够有效地减少切换机构在运动中的晃动，使得传动更加平稳可靠。
施夹钳还包括送夹止退机构，该送夹止退机构包括偏置弹簧和导向枢转件350，导向枢转件350为下述包括止退端354的导向枢转件350。导向枢转件350包括与壳体321枢转连接的枢接端352和自枢接端352向外延伸的导向件351和止退端354；导向件351 与致动件330活动连接，致动件330的运动带动导向件351和止退端354在偏置弹簧作用下绕枢转端334运动；在第一状态时，止退端354逐渐靠近送夹驱动机构的近端；在第二状态时，止退端354与送夹驱动机构的近端抵接以防止送夹驱动机构后退。
送夹止退机构可以在切换机构与送夹驱动机构分离瞬间，其止退端354运动至送夹驱动机构的近端并抵住送夹驱动机构以防止送夹驱动机构后退。但为防止因元件尺寸偏差、运动误差等而导致送夹止退机构无法抵住送夹驱动机构，而造成夹子10后退，送夹止退机构可以在切换机构与送夹驱动机构分离前，其止退端354已运动至送夹驱动机构的近端，当切换机构与送夹驱动机构分离后，送夹驱动机构在第一复位件418的作用下后退一小段距离直至与送夹止退机构的止退端354抵接进而防止送夹驱动机构进一步后退而使夹子10后退。由于送夹驱动机构的弹性推杆232具有弹性，在送夹驱动机构前进时被压缩，因此送夹驱动机构在第一复位件418的作用下后退一小段距离过程中，弹性推杆232逐渐恢复形变，此时送夹块231依然抵住夹子10，因此在送夹驱动机构后退一小段距离时夹子10并不会后退。
致动件330具有导引通道340，导引通道340包括起点a、终点c以及位于起点a和终点c之间的锁止点b；起点a到致动件330枢转中心的距离以及终点c到致动件330枢转中心的距离均小于锁止点b到致动件330枢转中心的距离；致动件330绕其枢转中心转动时，导引通道340随之转动，使得导引通道340与导向件351之间相对运动，导向件351能够随致动件330的运动依次经过起点a、锁止点b及终点c；在第一状态时，导向件351逐渐朝所述锁止点b相对运动，止退端354逐渐靠近送夹驱动机构的近端；在第二状态时，导向件351相对运动至锁止点b时，止退端354与送夹驱动机构的近端抵接以防止送夹驱动机构后退。送夹止退机构的存在，能够避免位于钳口组件100内的夹子10后退而造成无法夹持血管或者组织的问题，从而提高了手术的可靠性与安全性。关于致动件330更为详细的介绍将在后文展开。
钳口驱动机构包括钳口近端驱动件及与钳口近端驱动件连接的钳口远端驱动件，上述切换机构在第二状态时，驱动钳口近端驱动件运动，进而驱动钳口远端驱动件运动。本实施例中，钳口近端驱动件为钳口驱动管432，钳口远端驱动件为套管210。套管210一端与钳口驱动管432连接，另一端与钳口组件100相配合；在第二状态时，切换机构与钳口驱动管432结合以驱动钳口驱动管432运动，进而驱动套管210运动以驱动钳口组件100闭合。钳口驱动管432的远端内壁间隔设置有凸筋436，相邻的凸筋436和钳口驱动管432内壁形成了第二环形槽438，套管210的近端外周设置有环形片442，该环 形片442嵌入第二环形槽438，凸筋436与环形片442抵接。环形片442上周向对称设置有凹口444，第二环形槽438内部设置有与其形配的凸起440，该凸起440与凹口444结合使得套管210被安装到位且被固定在钳口驱动管432内。钳口驱动机构还包括第二复位件446，如弹性元件。弹性元件套设在钳口驱动管432外，一端与钳口驱动管432外表面上的挡板434抵接，另一端向前延伸，与施夹钳的壳体321内壁抵接，弹性元件用于在钳口驱动机构前进时储存能量，弹性元件恢复形变而释放该能量从而为钳口驱动机构的复位后退提供动力。
送夹驱动机构包括送夹近端驱动件、与送夹近端驱动件连接的送夹远端驱动件；上述切换机构在第一状态时，驱动送夹近端驱动件运动，进而驱动送夹远端驱动件运动。送夹远端驱动件包括基座240和送夹组件，基座240内设置有通道；在第一状态时，切换机构与送夹近端驱动件结合以驱动送夹近端驱动件运动，进而驱动送夹组件在通道内移动，以驱动夹子10进入钳口组件100。更为具体地，通道的远端设置有导引斜面243，送夹近端驱动件驱动送夹组件在通道内运动并经过导引斜面243运动至与夹盒220内的第一夹子抵接，进而驱动第一夹子进入钳口组件100。本实施例中，送夹近端驱动件为送夹驱动管402，与送夹组件固定连接，送夹驱动管402部分位于钳口驱动管432内，能够在钳口驱动管432内运动。基座240位于夹盒220的外侧，其第一端与壳体321固定连接，且位于送夹驱动管402内，第二端自第一端向远端延伸，第二端通过销柱316与夹盒220的外侧的凸片固定连接。送夹组件包括依次连接的送夹杆233、弹性推杆232和送夹块231，具体地，送夹杆233的近端具有折弯部406，送夹驱动管402的远端具有与其形配的孔404，用于容纳送夹杆233的折弯部406，送夹杆233近端的折弯部406穿过基座240的通道的近端安装于送夹驱动管402远端的与其形配的孔404内。送夹杆233的远端具有容置槽408，弹性推杆232的近端具有与该容置槽408形配的卡接部410，该卡接部410插入该容置槽408内实现弹性推杆232与送夹杆233的连接；弹性推杆232的远端具有弧形凹陷部412，送夹块231的近端的凸耳414与该弧形凹陷部412相配合，实现弹性推杆232与送夹块231的连接。基座240的通道一方面提供了容纳送夹组件的空间，另一方面也便于送夹组件在通道内运动。送夹驱动管402驱动送夹块231在该通道内运动并经过导引斜面243运动至与夹子10抵接，进而驱动夹子10进入钳口组件100。为了增强弹性推杆232的强度，提高送夹稳定性，设置两个或两个以上的弹性推杆232，每个弹性推杆232都由多片叠置而成。弹性推杆232本身具有弹性，能够发生形变而弯曲，从而使得送夹块231能够将夹子10送到位。关于送夹块231、夹子10以及夹盒220 对应的结构，参见上述详细描述，此处不再赘述。送夹驱动机构还包括第一复位件418，如弹性元件。弹性元件一端与钳口驱动管432内壁靠近送夹驱动管402的凸筋436抵接，另一端向后延伸，与送夹驱动管402的远端面抵接，弹性元件用于在送夹驱动机构前进时储存能量，弹性元件恢复形变而释放该能量从而为送夹驱动机构的复位提供动力。
施夹钳还包括旋钮310，其中旋钮310近端具有凸出部312，操作组件300远端内设置有与该凸出部312形配的凹陷部，凹陷部和凸出部312相互配合从而使得旋钮310与操作组件300组装在一起。旋钮310内设置有销柱316，送夹驱动管402设置有第一腰形孔420、钳口驱动管432设置有第二腰形孔448。基座240的近端容置于送夹驱动管402内，且设置有第一销孔416，销柱316和第一销孔416的配合，使得基座240与旋钮310固定安装。夹盒220的近端也容置于送夹驱动管402内，且设置有第二销孔，销柱316和第二销孔的配合，使得夹盒220也与旋钮310固定安装。销柱316一端安装在旋钮310侧壁的第一处，另一端穿过第二腰形孔448、第一销孔416、第二销孔、第一腰形孔420后安装在旋钮310侧壁的与第一处对称的另一处，使得旋钮310旋转时，能够带动钳口驱动管432、送夹驱动管402、基座240及夹盒220一起旋转，进而能够带动套管210、钳口组件100及送夹组件一起旋转，以便于医生调整到合适的角度后夹持血管或组织。另外，同时因为第一腰形孔420、第二腰形孔448的存在，使得送夹驱动管402和钳口驱动管432的前进不受销柱316的影响。旋钮310带动送夹驱动机构、钳口驱动机构能够做360度旋转，为了增加医生转动旋钮310的手感，同时使得转动任意角度后均能停在当前所在位置，以便于医生操作，在旋钮310和手柄组件的连接处设置阻尼件318，更为具体地，在旋钮310近端的凸出部312的外周设置凹槽314，阻尼件318内侧容置在该凹槽314内，外侧与手柄组件的凹陷部抵接。利用阻尼件318与手柄组件的摩擦力，增加转动旋钮310的力，并使转动任意角度停止后能够停在当前位置，该阻尼件318为橡胶圈。
下面详细介绍本实施例的施夹钳实现送夹、钳口组件100闭合的工作过程：
操作者按压致动件330，使致动件330从打开位置朝中间位置运动，以推动切换机构带动送夹驱动机构前进，送夹驱动管402的近端和切换机构的远端逐渐向钳口驱动管432近端靠近；当致动件330运动到中间位置时，切换机构的运动件运行到壳体321内的第二引导面496上，卡块482与送夹驱动管402的卡槽脱离，切换机构与送夹驱动机构分离，送夹驱动机构前进行程结束，位于夹盒220最远端的夹子10被送入钳口组件100内(送夹动作完成)，切换机构的远端面与钳口驱动机构的近端面抵接。送夹止退 机构的止退端354能够在切换机构与送夹驱动机构分离后，抵住送夹驱动管402以防止因送夹驱动机构后退而使钳口组件100内的夹子10后退。继续按压致动件330，致动件330从中间位置朝闭合位置运动，送夹止退机构逐渐地脱离送夹驱动管402；切换机构在致动件330作用下推动钳口驱动机构前进，钳口驱动管432驱动套管210前进以闭合钳口组件100，直至按压致动件330运动到闭合位置时，钳口驱动机构前进行程结束(钳口闭合动作完成)，送夹止退机构完全脱离送夹驱动管402，送夹驱动管402在第一复位件418作用下复位。释放致动件330，钳口驱动机构在第二复位件446的作用下复位。在致动件330从打开位置运动到中间位置时，送夹止退机构的导向件351在致动件330的导引通道340内相对运动到锁止点b时，将致动件330单向锁住，即致动件330在外力作用下仅能朝闭合位置运动，而不能朝打开位置运动，使得医生一方面能够明确地知道送夹动作已经完成，另一方面操作施夹钳完成送夹动作后，不用一直按住致动件330，可以停下来找准血管或组织后再继续操作致动件330来执行钳口闭合动作。
在本实施例中，传动机构还包括推夹驱动机构；传动机构还包括第三状态，传动机构择一地具有第一状态和第三状态；在第一状态时，送夹驱动机构驱动夹盒220最远端的夹子10前移至钳口组件100内；在第三状态时，推夹驱动机构驱动夹盒220内剩余的夹子10前移一个工位。此处，“最远端的夹子10”指前述“第一夹子”，“剩余的夹子10”即指前述“其他夹子”。本实施例中，施夹钳不仅能够连续地施夹，而且由于第一状态和第三状态处于不同时刻，送夹驱动机构执行送夹动作与推夹驱动机构执行推夹动作不同步，能有效地避免送夹动作和推夹动作的干扰问题，同时，由于送夹驱动机构与推夹驱动机构为独立的驱动机构，增加了设计空间，送夹驱动机构及推夹驱动机构的结构稳定可靠。因此，采用本实施例的技术方案来执行送夹和推夹动作更加稳定可靠，提高了施夹钳的安全性。
本实施例中，传动机构包括驱动件、配接机构；该驱动件与致动件330抵接以接收动力，配接机构一处与驱动件连接，另一处与推夹驱动机构连接，配接机构的一处与其另一处之间具有距离。驱动件，用于驱动送夹驱动机构前进以推动夹盒220最远端的夹子10前移至钳口组件100内，还用于驱动配接机构运动以驱动推夹驱动机构后退以存储能量；推夹驱动机构包括第三复位件456，该第三复位件456用于存储所述能量；释放所述能量，推夹驱动机构在该第三复位件456作用下前进以将夹盒220内剩余的夹子10前移一个工位。也就是说，通过配接机构使得送夹驱动机构前进时，推夹驱动机构后退蓄能，送夹驱动机构执行的送夹动作和推夹驱动机构执行的推夹动作不同步。此处驱动 件即为上述的切换机构，用于选择性地驱动送夹驱动机构或者钳口驱动机构。在第一状态时，驱动件与钳口驱动机构分离，且与送夹驱动机构结合以驱动送夹驱动机构前进，同时驱动配接机构运动以驱动推夹驱动机构后退以储存第一能量；在第二状态时，驱动件与钳口驱动组件结合以驱动钳口驱动机构前进，且与送夹驱动机构分离，同时驱动配接机构运动以驱动推夹驱动机构后退以储存第二能量；该第一能量和该第二能量共同组成上述能量，在第三状态时，推夹驱动机构在该能量作用下前进以将夹盒220内剩余的夹子10前移一个工位。也就是说，推夹驱动机构通过配接机构与切换机构连接，推夹驱动机构与切换机构运动方向相反；在致动件330的作用下，切换机构先与钳口驱动机构分离，且与送夹驱动机构结合以驱动送夹驱动机构前进以执行送夹动作，后与送夹驱动机构分离，与钳口驱动机构结合以驱动钳口驱动机构前进以执行钳口闭合动作。在切换机构驱动送夹驱动机构、钳口驱动机构前进时，同时驱动配接机构运动以驱动推夹机构后退并存储能量；释放致动件330时，推夹驱动机构在第三复位件456的作用下前进以执行推夹动作。关于切换机构如何实现与送夹驱动机构、钳口驱动机构的结合分离已在上述描述介绍，此处不再赘述。
在另一实施例中，驱动件不含离合功能，驱动件分别与送夹驱动机构和推夹驱动机构连接，致动件330包括第一致动件和第二致动件，第一致动件与驱动件抵接，第二致动件与钳口驱动机构抵接。在第一状态时，驱动件在第一致动件的作用下驱动送夹驱动机构前进以将夹盒220最远端的夹子10前移至钳口组件100内，同时驱动配接机构运动以驱动推夹驱动机构后退以储存能量；推夹驱动机构包括第三复位件456，该第三复位件456用于存储所述能量。在第三状态时，释放第一致动件330，推夹驱动机构在该第三复位件456的作用下前进以将夹盒220内剩余的夹子10前移一个工位。在释放第一致动件后，按压第二致动件驱动钳口驱动组件以闭合钳口组件100。当然，也可以在释放第一致动件前，且送夹动作已执行完毕后，按压第二致动件驱动钳口驱动组件以闭合钳口组件100，当钳口组件100闭合后，再释放第一致动件，使推夹驱动机构在上述第三复位件456的作用下前进以将夹盒220内剩余的夹子10前移一个工位。
钳口驱动机构套设于送夹驱动机构，在第一状态时，送夹驱动机构的近端面与钳口驱动机构的近端面逐渐靠近，驱动件的远端面与钳口驱动机构的近端面逐渐靠近；在第二状态时，钳口驱动机构的近端面与送夹驱动机构的近端面逐渐远离，驱动件的远端面与钳口驱动机构的近端面贴合。关于钳口驱动机构、送夹驱动机构的结构、位置关系等参见前述内容，此处不再赘述。
配接机构包括第一配接件、中间件和第二配接件，该第一配接件与上述驱动件连接，第二配接件与推夹驱动机构连接；第一配接件通过中间件驱动第二配接件，且与第二配接件运动方向相反；驱动件驱动第一配接件前进；在第一配接件前进时，第二配接件后退以带动推夹驱动机构后退。关于配接机构的结构，将在下文展开详细描述。
推夹驱动机构还包括推夹驱动件。推夹驱动件与配接机构、第三复位件456连接，具体地，第三复位件456一端与壳体321连接，另一端与第二配接件的近端连接。当然可以理解地是，第三复位件456也可以直接与推夹驱动件连接。推夹驱动件与第二配接件的远端连接，推夹驱动件沿纵向方向间隔设置有多个侧腔252，每个侧腔252对应安装有一个推夹块253，推夹驱动件在第三复位件456的作用下驱动推夹块253运动以将夹盒220内剩余的夹子10前移一个工位。更为具体地，推夹驱动件包括推夹近端驱动件及推夹远端驱动件，此处的推夹远端驱动件即为前述的推夹组件或推夹座250。该第三复位件456可以为弹性元件，如弹簧。本实施例中，推夹近端驱动件为配接块452，推夹远端驱动件包括推夹杆251和推夹块253，配接块452的近端与第二配接件的远端连接，配接块452的远端与推夹杆251连接。沿推夹杆251杆身方向上等间距地设置有多个侧腔252，每个侧腔252对应安装有一个推夹块253，可以理解地是，也可以是非等间距地设置。每个推夹块253通过弹性件254(如弹簧)可偏转地设置在推夹杆251的对应的侧腔252内。具体地，推夹块253近端通过转轴255安装在侧腔252上下壁的销孔404内，弹性件254设置在侧腔252内，其近端与侧腔252近端连接，远端与推夹块253近端连接。初始状态时，推夹块253的远端在弹性件254的作用下沿偏离推夹杆251杆身向下倾斜，每个推夹块253的远端与夹盒220内对应的夹子10的尾端抵靠；推夹块253随着推夹杆251后退时，推夹块253受到夹子10以向上的力绕着转轴255朝着推夹杆251杆身向上翻转，因而推夹杆251后退时，推夹块253不会与夹子10发生干涉。当推夹杆251后退动作结束时，每个推夹块253运动至与其近端相邻的夹子10的尾部抵靠或者运动至与其近端相邻夹子10的后方预定距离，在第三状态时，推夹杆251带动推夹块253前进，推夹块253在前进时，推动夹盒220内剩余的夹子10前进一个工位，为下一次的送夹做好准备。
为了能够充分地利用施夹钳内部的空间，使得施夹钳的结构更加紧凑，同时也为了使施夹钳重心更加稳定，更加便于操作，送夹近端驱动件套设于推夹近端驱动件，送夹远端驱动件与推夹远端驱动件位于夹盒220的两侧。
由前述可知，钳口驱动机构包括钳口驱动管432、与钳口驱动管432连接的套管210， 钳口驱动管432驱动套管210运动，从而驱动钳口组件100运动；送夹驱动机构包括送夹驱动管402、与送夹驱动管402连接的送夹组件，送夹驱动管402驱动送夹组件运动，从而驱动夹盒220最远端的夹子10进入钳口组件100。为了使得传动机构的整体结构更加紧凑，充分地利用空间，减小施夹钳整体的体积，送夹驱动机构、钳口驱动机构及推夹驱动机构均沿纵向方向设置。送夹驱动管402在垂直于纵向方向的平面的投影位于钳口驱动管432在该平面的投影内，送夹驱动机构能够在钳口驱动机构内沿纵向方向运动，钳口驱动管432在垂直于纵向方向的平面的投影位于驱动件(即切换机构)在该平面的投影内；推夹近端驱动件该平面的投影位于送夹驱动管402在该平面的投影内，推夹驱动机构能够在送夹驱动机构内沿纵向方向运动，推夹远端驱动件与送夹组件位于夹盒220的两侧。进一步地，送夹近端驱动件、推夹近端驱动件及钳口驱动管432共轴。具体地，送夹驱动管402位于钳口驱动管432内，推夹驱动件近端位于送夹驱动管402内，能够在送夹驱动管402内运动，更为具体地，配接块452近端位于送夹驱动管402内，推夹杆251与送夹组件位于夹盒220的两侧。关于夹盒220的结构、位置等相关介绍参见前述，此处不再赘述。
由上述描述可知，施夹钳包括旋钮310，旋钮310内设置有销柱316，销柱316一端安装在旋钮310侧壁的第一处，另一端穿过钳口驱动机构的近端驱动件、送夹驱动机构的近端驱动件、基座240、夹盒220后安装在旋钮310侧壁的、与第一处相对称的另一处；钳口驱动机构的近端驱动件设置有第二腰形孔448、送夹驱动机构的近端驱动件设置有第一腰形孔420、基座240设置有第一销孔416、夹盒220设置有第二销孔。为了使得推夹驱动机构也能够跟随旋钮310一起旋转，推夹驱动机构的近端驱动件设置有容纳销柱316的第三腰形孔458，销柱316一端安装在旋钮310侧壁的第一处，另一端穿过第一腰形孔420、第二腰形孔448、第一销孔416、第二销孔与第三腰形孔458后安装在旋钮310侧壁的、与第一处对称的另一处，从而使得钳口驱动机构、送夹驱动机构、夹盒220、推夹驱动机构均能够随着旋钮310一起旋转。
下面详细介绍施夹钳实现送夹、钳口组件闭合、推夹的工作过程：
操作者按压致动件330，使致动件330从打开位置朝中间位置运动，驱动件(即切换机构)在致动件330作用下驱动送夹驱动机构前进，同时驱动配接机构带动推夹驱动机构后退，推夹驱动机构后退时，其第三复位件456蓄能，该过程中，送夹驱动管402近端和驱动件的远端逐渐向钳口驱动管432近端靠近；当致动件330运动到中间位置时，驱动件的运动件运行到壳体321内的第二引导面496上，卡块482与送夹驱动管402的 卡槽脱离，驱动件与送夹驱动机构分离，送夹驱动机构前进行程结束，位于夹盒220最远端的夹子10被送入钳口组件100内(送夹动作完成)，驱动件的远端面与钳口驱动机构的近端面抵接。送夹止退机构的止退端354能够在驱动件与送夹驱动机构分离后，抵住送夹驱动管402以防止因送夹驱动机构后退而使钳口组件100内的夹子10后退。继续按压致动件330，致动件330从中间位置朝闭合位置运动，送夹止退机构逐渐脱离送夹驱动管402；驱动件在致动件330作用下推动钳口驱动机构前进，同时继续驱动配接机构带动推夹驱动机构后退，推夹驱动机构后退时，其第三复位件456继续蓄能，钳口驱动管432驱动套管210前进以闭合钳口组件100，直至按压致动件330运动到闭合位置时，钳口驱动机构前进行程结束(钳口闭合动作完成)，第三复位件456蓄能结束，送夹止退机构完全脱离送夹驱动管402，送夹驱动管402在第一复位件418作用下复位。释放致动件330，钳口驱动机构在第二复位件446的作用下复位，推夹驱动机构在第三复位件456的作用下前进以将夹盒220内剩余的夹子10前移一个工位(推夹动作完成)。
下面详细介绍上述提到的配接机构。
配接机构包括第一配接件、中间件和第二配接件，第一配接件通过中间件驱动第二配接件；击发驱动机构与第一配接件连动；连发驱动机构与第二配接件连动；第一配接件的运动方向与第二配接件的运动方向相反，其中，击发驱动机构包括上述送夹驱动机构和钳口驱动机构，用于完成送夹动作和施夹动作(钳口闭合动作)，连发驱动机构为上述推夹驱动机构，用于完成推夹动作。此处的连动是指两个运动件连接，二者的运动方向相同，且同步运动。送夹驱动机构、推夹驱动机构为独立的驱动机构，增加了设计空间，能够实现更加可靠、稳定地执行送夹和推夹动作，通过配接机构实现推夹动作与送夹动作、施夹动作的不同步，有效地避免送夹动作和推夹动作的干扰问题，进而有效地提高了施夹钳的安全性和可靠性。
击发驱动机构通过切换机构与第一配接件连动，切换机构用于选择性地驱动送夹驱动机构和钳口驱动机构；具体地，切换机构的近端与第一配接件固定连接，切换机构与击发驱动机构可分离地连接。按压上述致动件330，切换机构在致动件330作用下，先驱动送夹驱动机构前进以执行送夹动作和后驱动钳口驱动机构前进以执行施夹动作，同时驱动第一配接件前进，进而驱动连发驱动机构后退储存能量；连发驱动机构包括第三复位件456，该第三复位件456用于存储该能量；释放致动件330，连发驱动机构在第三复位件456作用下前进以执行推夹动作。关于切换机构、送夹驱动机构、钳口驱动机构以及推夹驱动机构的结构、位置关系、连接关系等均与前述相同，此处不再赘述。
第一配接件包括上齿条462，第二配接件包括下齿条468，中间件包括第一齿轮464和第二齿轮466；上齿条462与第一齿轮464啮合，下齿条468与第二齿轮466啮合，第一齿轮464与第二齿轮466同轴设置，第一齿轮464的直径大于第二齿轮466的直径，也就是说，击发驱动机构通过切换机构与上齿条462连接，连发驱动机构与下齿条468连接，且上齿条462和下齿条468的运动方向相反，上齿条462沿第一方向运动第一距离时，下齿条468沿与第一方向相反的方向运动第二距离，也即击发驱动机构沿第一方向运动第一距离时，连发驱动机构沿与第一方向相反的第二方向运动第二距离，且第一距离大于第二距离。其中，第一方向为送夹驱动机构、钳口驱动机构前进方向。击发驱动机构前进第一距离的过程中，需要完成送夹动作和施夹动作，而连发驱动机构在后退第二距离的过程中蓄能，释放致动件330后前进完成推夹动作，其后退的距离等于其前进的距离，而前进的距离等于夹盒220内的夹子10前移一个工位的距离，后退的第二距离小于击发驱动机构的第一距离，夹盒220内的夹子10能够尽可能地排布紧密些，也就是说夹盒220内可以容纳更多的夹子10，可连续施夹的次数变多，满足医生的手术需求。
为了使得配接机构的布局更加合理，结构更加紧凑，第一配接件与第二配接件沿纵向方向设置，中间件设置在第一配接件和第二配接件之间，且沿垂直于纵向方向的方向设置。
为了使得整体结构更加紧凑，连发驱动机构和第二配接件在送夹驱动机构内沿纵向方向运动。第一配接件的轴线与中间件的轴线垂直，与第二配接件的轴线平行；第二配接件的轴线与连发驱动机构的近端驱动件(配接块452)的轴线和击发驱动机构的近端驱动件(送夹驱动管402及钳口驱动管432)的轴线共轴。为了使得第一配接件和第二配接件的运动不发生晃动，更加平稳，壳体321内设置有第一引导槽472和第二引导槽474，第一配接件在第一引导槽472内运动，第二配接件在第二引导槽474内运动。
由前述可知，连发驱动机构包括推夹驱动件和第三复位件456，推夹驱动件与第二配接件的远端连接；推夹驱动件沿纵向方向间隔设置有多个侧腔252，每个侧腔252对应安装有一个推夹块253，推夹驱动件在第三复位件456的作用下运动使得推夹块253运动以执行推夹动作。该第三复位件456在连发驱动机构后退时蓄能，为了使得整体结构更加紧凑，且充分利用空间，连发驱动机构的第三复位件456位于第二引导槽474内，一端与第二配接件近端连接，另一端与位于第二引导槽474近端的壳体321连接。
为了使得连发驱动机构跟随旋钮310转动时，与其连接的第二配接件不会发生转动，第二配接件的远端具有容置空间，为了便于安装，该容置空间具有开口，推夹驱动件的 近端通过该开口收容于容置空间内，且能够在容置空间内旋转；推夹驱动件的近端具有第二止挡部454，与容置空间内的限位面470抵接，以使连发驱动机构与第二配接件的远端轴向固定。
下面结合配接机构，详细介绍施夹钳的传动机构执行送夹动作、施夹动作、推夹动作的工作过程：
操作者按压致动件330，使致动件330从打开位置朝中间位置运动，切换机构在致动件330作用下驱动送夹驱动机构和第一配接件前进，同时第一配接件通过中间件驱动第二配接件后退，由于第二配接件和推夹驱动机构连接，进而驱动推夹驱动机构后退，推夹驱动机构后退时，其第三复位件456蓄能，该过程中，送夹驱动管402近端和切换机构的远端逐渐向钳口驱动管432近端靠近；当致动件330运动到中间位置时，切换机构的运动件运行到壳体321内的第二引导面496上，切换机构的卡块482与送夹驱动管402的卡槽脱离，切换机构的与送夹驱动机构分离，送夹驱动机构前进行程结束(送夹动作完成)。送夹止退机构的止退端354能够在切换机构与送夹驱动机构分离后，抵住送夹驱动管402以防止因送夹驱动机构后退而使钳口组件100内的夹子10后退。继续按压致动件330，致动件330从中间位置朝闭合位置运动，送夹止退机构逐渐脱离送夹驱动管402；切换机构在致动件330作用下继续推动钳口驱动机构和第一配接件前进，同时第一配接件通过中间件继续驱动第二配接件后退，由于第二配接件和推夹驱动机构连接，推夹驱动机构继续后退，推夹驱动机构后退时，其第三复位件456继续蓄能，钳口驱动管432驱动套管210前进以闭合钳口组件100(施夹动作完成)，第三复位件456蓄能结束，送夹止退机构完全脱离送夹驱动管402，送夹驱动管402在第一复位件418作用下复位。释放致动件330，钳口驱动机构在第二复位件446的作用下复位，推夹驱动机构在其第三复位件456的作用下前进以将夹盒220内剩余的夹子10前移一个工位(推夹动作完成)。
在本实施例中，送夹驱动机构用于驱动夹盒220最远端的夹子10前移至钳口组件100内，推夹驱动机构用于驱动夹盒220内剩余的夹子10前移一个工位；送夹驱动机构包括送夹近端驱动件和与送夹近端驱动件连接的送夹远端驱动件，推夹驱动机构包括推夹近端驱动件和与推夹近端驱动件连接的推夹远端驱动件；送夹近端驱动件的运动轨迹与推夹近端驱动件的运动轨迹平行，送夹远端驱动件的运动轨迹与推夹远端驱动件的运动轨迹相交。采用不同的驱动机构来分别执行送夹动作和推夹动作，增加了设计空间，能够实现更加可靠、稳定地执行送夹动作和推夹动作，且送夹动作早于推夹动作被执行， 二者动作不同步，不会相互干扰，从而有效地提高施夹钳的安全性和可靠性。
需要说明的是，本实施例中，运动轨迹是指元件上各点运动过程中形成的运动轨迹，当元件A的运动轨迹、元件B的运动轨迹均为直线时，若元件A的运动轨迹中至少一条直线与元件B的运动轨迹中至少一条直线共线，则称元件A的运动轨迹与元件B的运动轨迹“共轴”；若元件A的运动轨迹中所有直线，与元件B的运动轨迹的所有直线都平行，则称元件A的运动轨迹与元件B的运动轨迹“平行”。元件的运动轨迹是指在一个执行周期内所形成的运动轨迹。
本实施例中，推夹近端驱动件部分可运动地位于送夹近端驱动件内，送夹远端驱动件与推夹远端驱动件位于夹盒220的两侧，具体地，推夹远端驱动件位于夹盒220容纳夹子10的一侧(夹盒220内侧)，送夹远端驱动件位于夹盒220未容纳夹子10的一侧(夹盒220外侧)。由前述可知，送夹近端驱动件沿纵向方向前进，并驱动送夹远端驱动件从夹盒220外侧运动到夹子10所在的平面并与夹盒220最远端的夹子10抵接，进而推动该夹子10前进至钳口组件100，送夹驱动机构后退时，送夹近端驱动件带动送夹远端驱动件沿原路返回至初始位置。推夹近端驱动件沿纵向方向后退，并带动推夹远端驱动件后退，推夹远端驱动件后退时，其远端在夹盒220的内侧从与相应的夹子10抵接的位置朝远离夹盒220底壁221运动至与其近端相邻的夹子10后方。当推夹近端驱动件沿纵向方向前进时，驱动推夹远端驱动件前进以推动夹盒220内剩余的夹子10前移一个工位。因此，传动机构运动的过程中，送夹远端驱动件的运动轨迹与推夹远端驱动件的运动轨迹相交,其中元件运动轨迹相交，包括元件运动轨迹本身相交，也包括元件运动轨迹的延长线相交，送夹近端驱动件的运动轨迹与推夹近端驱动件的运动轨迹平行。
本实施例中，送夹近端驱动件套设于推夹近端驱动件，使得传动机构的结构更加紧凑，充分利用空间。送夹驱动机构及推夹驱动机构能够在钳口驱动机构内运动。钳口驱动机构沿纵向方向前进或者后退，其运动轨迹与送夹近端驱动件的运动轨迹或者与推夹近端驱动件的运动轨迹平行，与送夹远端驱动件的运动轨迹或者与推夹远端驱动件的运动轨迹相交。钳口驱动机构包括钳口驱动管432以及与其连接的套管210，钳口驱动管432驱动套管210运动以钳口组件100闭合，钳口驱动管432的运动轨迹与套管210的运动轨迹共同组成钳口驱动机构的运动轨迹。这样的设计，使得传动机构的布局合理，结构紧凑。
送夹近端驱动件包括送夹驱动管402，送夹远端驱动件包括送夹块231；送夹块231用于驱动夹子10送入钳口组件100内；推夹近端驱动件包括配接块452，推夹远端驱动 件包括推夹块253，推夹块253用于驱动夹盒220内剩余的夹子10前移一个工位；送夹驱动管402的运动轨迹与配接块452的运动轨迹及与钳口驱动机构的运动轨迹平行，送夹块231的运动轨迹与推夹块253的运动轨迹及与钳口驱动机构的运动轨迹相交。为了使得整体结构更加紧凑，配接块452部分位于送夹驱动管402内，能够在送夹驱动管402内沿纵向方向移动，送夹驱动管402的近端位于钳口驱动管432内，能够在钳口驱动管432内沿纵向方向移动。
送夹块231通过送夹杆233与送夹驱动管402连接；送夹驱动机构还包括与壳体321固定的基座240，基座240与送夹杆233滑动配接；基座240远端设置有导引斜面243，用于引导送夹块231从基座240内推出以驱动夹盒220最远端的夹子10；送夹杆233的运动轨迹与钳口驱动机构的运动轨迹平行。推夹块253通过推夹杆251与配接块452连接，沿推夹杆251杆身方向上设置有多个侧腔252，每个侧腔252对应安装有一个推夹块253；推夹杆251的运动轨迹与钳口驱动机构的运动轨迹平行。这样的设计使得整机布局合理，空间充分利用。
下面详细介绍送夹块231的运动轨迹与推夹块253的运动轨迹，请参见图23A和图23B，为送夹驱动机构前进时，其送夹块231的运动过程示意图和其运动轨迹示意图；由前述可知，送夹块231在基座240所在的第一平面运动至基座240远端的导引斜面243，再沿着导引斜面243运动至夹子10所在的第二平面与夹盒220最远的夹子10抵接，其运动过程如图23A所示，从中可以得出其上任一点所形成的运动轨迹示意图如图23B所示。如图24A和图24B所示，为推夹驱动机构后退时，其推夹块253的运动过程示意图及运动轨迹示意图。由前述可知，推夹块253跟随推夹驱动机构后退，当其后退至与其近端相邻的夹子10时，推夹块253的远端受到夹子10以向上的力绕着转轴255向上翻转，继续后退当推夹块253的远端至其近端相邻的夹子10的后方时，推夹块253的远端在弹簧的作用下向下翻转至原来位置，其运动过程如图24A所示，从中可以得出推夹块253的运动轨迹，以推夹块253的远端E点为例，其所形成的运动轨迹示意图如图24B所示。需要说明的是。此处只是示意性的指示，根据实际具体设计的不同，其运动轨迹也会有所调整，如曲线的弧度等。由此可以看出，传动机构运动的过程中，送夹块231的运动轨迹与推夹块253的运动轨迹相交。
传动机构还包括切换机构和配接机构，切换机构用于选择性的驱动送夹驱动机构或钳口驱动机构；配接机构一处与切换机构连接，另一处与推夹驱动机构连接，所述一处与所述另一处之间具有距离；切换机构在致动件330的作用下先后驱动送夹驱动机构、 钳口驱动机构沿第一方向运动，同时驱动配接机构运动以驱动推夹驱动机构沿第二方向运动以储存能量，其中第一方向与第二方向相反；推夹驱动机构包括第三复位件456，用于存储该能量。释放致动件330，推夹驱动机构在第三复位件456的作用下前进以将夹盒220内剩余的夹子10前移一个工位；切换机构的运动轨迹与钳口驱动机构的运动轨迹共轴，使得空间得到充分利用，结构更加紧凑。配接机构包括第一配接件和由第一配接件驱动的第二配接件，第一配接件与切换机构连接，第二配接件与推夹驱动机构连接；第一配接件的运动轨迹与钳口驱动机构的运动轨迹平行，第二配接件的运动轨迹与钳口驱动机构的运动轨迹平行。这样使得整体传动机构的结构更加紧凑，充分利用空间。
本实施例中，如图25至图33D所示，施夹钳还具有实现扳手特殊位置锁定的结构设计，具体细节如下。
本实施例中，扳手可活动地连接于主体320的壳体321，扳手运动可处于三个特殊的位置：初始时刻，用户未操作扳手，扳手所处的位置为打开位置；用户操作扳手，送夹完成时刻扳手所处的位置为中间位置；用户操作扳手，施夹完成时刻扳手所处的位置为闭合位置，此时用户无法操作扳手进一步运动。从初始时刻，用户保持操作扳手，扳手从打开位置运动到中间位置再运动到闭合位置。定义扳手的朝向闭合位置的方向的运动为扳手的正向运动，扳手从打开位置朝向中间位置的运动和扳手从中间位置朝向闭合位置的运动都属于正向运动；相应的，定义扳手的朝向打开位置的方向的运动为扳手的复位运动，同理，扳手从闭合位置朝向中间位置的运动和扳手从中间位置朝向打开位置的运动都属于复位运动。定义扳手从打开位置运动至中间位置为扳手的第一段正向运动，扳手从中间位置运动至闭合位置为扳手的第二段正向运动，扳手从闭合位置运动至中间位置为扳手的第二段复位运动，扳手从中间位置运动至打开位置为扳手的第一段复位运动。用户操作扳手做正向运动，响应于用户操作，扳手从打开位置运动至中间位置再运动至闭合位置。
根据上文所述，至少部分的送夹驱动机构和至少部分的钳口驱动机构收容于壳体321内，如上文的送夹近端驱动件和钳口近端驱动件，送夹驱动机构和钳口驱动机构连接扳手且被扳手驱动而向前运动。送夹驱动机构响应于扳手从打开位置运动到中间位置而驱动所述夹子10向前运动而进入所述钳口组件100。所述扳手位于所述中间位置时，所述夹子10处于准备位置，即扳手第一段正向运动驱动送夹动作并实现送夹到位，准备位置为第一夹子被钳口组件100稳定的夹持和能被有效地压缩至闭合状态的位置，如果夹子10在钳口组件100内滑动使其没有位于准备位置，在施夹过程中会造成对夹子10 的支撑性不足而使夹子10自动弹出或使夹子10扭转，导致压缩的效果不佳。钳口驱动机构响应于所述扳手从中间位置运动到闭合位置而驱动钳口驱动机构先前运动，从而驱动所述钳口组件100闭合运动，扳手位于所述闭合位置时，钳口组件100处于闭合状态，即扳手第二段正向运动驱动闭合动作并实现钳口闭合到底并施夹到位，施夹到位为在钳口组件100中的夹子10被压缩至闭合状态。
本实施例的施夹钳为能连续施加多个夹子的施夹钳，为实现连续施夹，扳手需复位运动至打开位置，为下一次施加夹子10做准备。如果还由用户来操作复位，比较麻烦，导致用户体验不佳。本实施例中，施夹钳还包括扳手复位机构，与扳手连接，在用户停止操作扳手时，扳手复位机构驱动扳手做复位运动，复位运动的方向与正向运动的方向相反。扳手复位机构包括弹性元件，在扳手正向运动时弹性元件被压缩形变蓄能，不操作扳手时弹性元件在蓄积的能量作用下恢复形状，提供复位力使得扳手做复位运动。本实施例中，扳手复位机构为推夹驱动机构的第三复位件456，第三复位件456与扳手之间的连接方式如前文所述，当松开扳手时，第三复位件456自身复位运动通过上文所述配接结构带动输入件向后运动，从而输入件的驱动面推动扳手做复位运动。在另一种实施例中，扳手复位机构除了包括第三复位件456外，还包括钳口驱动机构的第二复位件446，在扳手从闭合位置向中间位置运动的过程中，除了第三复位件456对手柄提供复位力外，第二复位件446也对手柄提供复位力，具体的，扳手从闭合位置向中间位置运动的过程钳口驱动管432与输入件始终保持抵接，第二复位件446自身复位运动时带动钳口驱动管432后退，钳口驱动管432推动输入件后退，从而输入件的驱动面推动扳手做复位运动，直至钳口驱动管432回到初始时刻的位置而与输入件脱离，且从此时刻开始将由第三复位机构单独对扳手提供复位力。
医生操作扳手正向运动来顺序执行送夹和施夹，若送夹动作和施夹动作中间没有明显的停顿或界限，会导致医生使用感不佳。本实施例的施夹钳还包括扳手锁止机构，扳手锁止机构包括导向件351和设置于扳手且随扳手运动的导引通道340，导引通道340包括起点a、锁止点b和终点，至少部分导向件351容置于导引通道340，导向件351与导引通道340相对移动；导向件351响应于扳手从打开位置运动到中间位置而从起点a相对运动到锁止点b，导向件351响应于扳手从中间位置运动到闭合位置而从所述锁止点b相对运动到终点。用户操作扳手做正向运动的期间，当不操作扳手的时刻若扳手位于中间位置，则导向件351在锁止点b阻止扳手做复位运动。用户操作扳手使得扳手运动，带动导引通道340运动，从而使得导引通道340相对于导向件351运动，也称为导 向件351相对于导引通道340运动或导向件351相对运动。导引通道340是设置于扳手的封闭通道，导向件351无法脱离出导引通道340，从而无法脱离出扳手。由此，扳手锁止机构的锁止点b能够提供送夹和施夹动作的停顿点，医生可以在该停顿点观察钳口组件100的位置是否适合待夹持的组织，必要时可以调整钳口组件100位置，提高了用户体验；利用扳手的自身结构提供锁止点b，结构简单；扳手上的导引通道340是封闭的通道，导向件351的移动通道稳定，扳手的锁止效果稳定。
进一步的，导引通道340中，仅当导向件351位于锁止点b时，导向件351阻止扳手复位运动。即，导引通道340仅提供一个阻止扳手做复位运动的锁止点b，扳手正向运动时，当停止操作扳手的时刻若扳手位于除打开位置和中间位置以外的任意位置，扳手复位机构均驱动扳手做复位运动。如此，在操作扳手的过程中，仅在中间位置扳手被锁定以提醒完成送夹，不被其它位置干扰，提高用户体验。
进一步的，扳手达到闭合位置之前在中间位置和闭合位置之间正向运动，当停止操作扳手，则扳手复位机构驱动扳手复位运动至中间位置，导向件351响应于扳手的复位运动至中间位置而运动至锁止点b，且导向件351在锁止点b阻止扳手继续复位运动。如此，进一步充分利用了导引通道340提供的仅一个阻止扳手复位运动的锁定点，在施夹过程中如停止操作扳手，扳手将停到送夹完毕的中间位置，而不是直接复位至打开位置，避免用户操作扳手越过了中间位置而无法获知送夹完成情况，提供给用户在送夹完成前观察手术情况和调整钳口组件100施夹位置的机会，提高用户体验。
进一步的，扳手复位机构驱动扳手复位运动至中间位置时，还同时驱动钳口驱动机构向后运动，从而带动钳口组件100打开运动。不论扳手到达闭合位置之前或之后，如发生了第二段复位运动，都将驱动钳口驱动机构向后运动和钳口组件100打开。特别是，施夹钳已经开始了施夹，但未完成施夹，扳手未到达闭合位置，钳口组件100未闭合到底，夹子10未被压缩至闭合状态，此时松开扳手，则可以放弃该次施夹过程，钳口组件100回到打开到底状态，夹子10恢复到打开状态，后续的调整钳口组件100在组织上的位置时不会损伤组织，这样的设计更安全和更人性化。
导引通道340为封闭槽。封闭槽为四周包围的槽，导向件351在槽内向四周运动都被限制住无法离开该槽，从而本实施例中导向件351无法脱离扳手。封闭槽对导向件351提供固定的移动通道，移动的稳定性强，进而也使得导向件351和导引通道340在锁止点b的锁定稳定性好。本实施例中，具体如图25所示，封闭槽为贯穿扳手主体320的封闭槽，径向垂直于轴向。在其它实施例中，导引通道340也可以为不贯穿扳手主体的封 闭槽，仅需提供导向件351在其中运动的封闭通道即可。
本实施例中，如图25所示，扳手包括扳手主体331、设置于扳手主体331一端的用户操作的按压部332、和设置于扳手主体331另一端的推动部333，推动部333抵接并推动所述送夹驱动机构或钳口驱动机构运动。扳手主体331上设置有与操作组件300的主体320的壳体321枢转连接的枢转端334。导引通道340位于扳手主体331，且位于所述枢转端334和所述推动部333之间。由此，导引通道340在扳手的中间位置，进一步提高了导向件351的运动的稳定性，且不需要设计额外的结构来设置导引通道340，扳手锁止机构的结构紧凑。
本实施例中，如图26所示，导引通道340包括主通道341和仅一个从主通道341的开口部342延伸的从通道343，开口部342位于主通道341的两端之间，主通道341的两端分别设有起点a和终点c，从通道343的远离开口部342的一端设有锁止点b；扳手主体331还包括扳手锁止弹性元件355，扳手锁止弹性元件355施加给导向件351脱离主通道341进入从通道343的力，从而扳手锁止弹性元件355驱动导向件351脱离主通道341而进入从通道343。采用这样的结构，导引通道340仅提供一个阻止扳手复位运动的锁定点，在未到达扳手中间位置的第一段正向运动时，如果松开扳手，则扳手将复位运动至打开位置并停止，在扳手离开中间位置继续正向运动时，未到达闭合位置前如果松开扳手，则扳手将复位运动至中间位置，并被上述的扳手锁止机构的锁止点b锁止在中间位置，不能继续复位运动。由此，在完成送夹动作时至完成施夹动作前，松开扳手，用户都将能明显感受到扳手在中间位置的停顿，这一停顿唯一且不被干扰，告知用户已完成送夹未完成施夹，用户还可调整施夹钳的位置，用户体验好。
从通道343包括阻挡壁344，不操作扳手且导向件351位于锁止点b时，导向件351在扳手的复位运动方向上抵住阻挡壁344，从而在锁止点b阻止扳手做复位运动。即阻挡壁344阻止了在锁止点b的导向件351向起点a运动。采用从通道343的简单的通道壁的结构设计，在锁止点b实现锁止，不需要额外的用于锁止的元件，结构简单紧凑。
主通道341包括从起点a延伸至与阻挡壁344连接的第一壁，所述第一壁和阻挡壁344呈直角或锐角。这样引导通道的简单角度设计，能保证阻挡壁344有效地阻止导向件351脱离从通道343的锁止点b，并且，在正向运动中导向件351从主通道341进入从通道343时，经过直角点或锐角点会发出碰撞声，声音清晰地提醒用户扳手到达了中间位置，提醒用户此刻送夹到位。
从通道343还包括与阻挡壁344连接的引导壁345，引导壁345引导导向件351在 锁止点b和终点c之间双向运动。采用从通道343的简单的通道壁的结构设计，即在锁止点b和终点c之间实现双向运动，扳手在双向上不会被锁止，可顺利被用户操作至闭合位置或被复位运动至中间位置，不需要额外的引导元件，结构简单紧凑。
主通道341还包括从终点c延伸至与引导壁345连接的第二壁，所述第二壁与引导壁345呈钝角。这样引导通道的简单角度设计，进一步保证了锁止点b和终点c之间实现双向运动，扳手在双向上不会被锁止。
具体的，如图25所示，主通道341为以扳手的枢转端334为圆心的圆弧通道，从通道343从主通道341的开口部342向远离枢转端334的方向延伸，即从通道343与枢转端334之间的距离大于主通道341与枢转端334之间的距离，定义位于主通道341的导向件351与枢转端334之间的距离为X，由于主通道341为上述圆弧通道，导向件351在主通道341移动时距离X保持不变(包括位于起点a和终点c)，定义导向件351位于从通道343时与枢转端334之间距离为Y，导向件351从进入从通道343并向锁止点b移动时，Y不断增大，并且Y始终大于X，特别是导向件351位于锁止点b时的距离Y0为最大值。由上述内容可知，当扳手运动且导向件351仅在主通道341内相对移动，实际上导向件351相对于壳体321未发生移动。本申请中，导引通道340不限于上述形状，在其它实施方式中，例如主通道341是一个弧形通道，弧形通道的两端距离枢转端334的距离不同，但弧形通道的上述X仍小于Y，同样实现上述扳手锁止功能，本领域技术人员容易想到的能保证实现与从通道343的配合实现锁止点b锁止的导引通道340结构，均在本申请的保护范围内。
本实施例中，为使得“扳手锁止弹性元件355驱动导向件351脱离主通道341而进入从通道343”，扳手锁止机构还包括导向枢转件350，导向枢转件350容纳于壳体321内，导向枢转件350包括与壳体321枢接的枢接端352、从枢接端352延伸出的受力端353和上述导向件351，扳手锁止弹性元件355的一端抵接所述受力端353，另一端抵接壳体321。扳手锁止弹性元件355的弹性作用力作用在受力端353时，带动导向枢转件350以枢接端352为旋转中心旋转，同时也带动了导向件351以枢接端352为旋转中心，这样导向枢转件350限定了导向件351的圆弧形的运动轨迹，保证其能稳定的在主通道341和从通道343之间来回切换，进一步保证了扳手锁止机构的稳定性。
具体的，如图27所示，本实施例中，导向枢转件350包括从枢接端352分别延伸出的第一转臂和第二转臂，第一转臂的末端为受力端353，导向件351设置于所述第二转臂的末端，扳手锁止弹性元件355的一端连接受力端353，扳手锁止弹性元件355的 另一端连接壳体321。第一转臂和第二转臂以枢接端352的销轴为支点形成杠杆，扳手锁止弹性元件355和导向件351位于杠杆的两端，这样的结构稳定，扳手锁止弹性元件355处于压缩状态，扳手锁止弹性元件355施加给受力端353一个推力，使得受力端353和导向件351有顺时针旋转的趋势，从而当导向件351在主通道341运动至开口部342时，顺时针旋转而向上抬起进入从通道343，并一直运动至从通道343的锁止点b而停止。第一转臂和第二转臂可以是如图27所示水平连接的杠杆，也可以是呈角度连接的杠杆。以上为导向枢转件350的一种具体实施方式---杠杆，导向枢转件350的结构不限于此，例如在其他实施方式中，从导向枢转件350的枢接端352延伸出第一转臂，导向件351设置在第一转臂的末端，第一转臂的中间一点为连接扳手锁止弹性元件355的受力端353，这种方式同样能实现扳手锁止弹性元件355通过导向枢转件350来施加给导向件351脱离所述主通道341进入从通道343的力，均在本发明的保护范围内。
以上方式为扳手锁止弹性元件355通过导向枢转件350间接连接到导向件351，在其他实施方式中还可以采用扳手锁止弹性元件355直接连接到导向件351的方式实现“扳手锁止弹性元件355驱动导向件351脱离主通道341而进入从通道343”，在一种实施方式中，可以采用一个“V”形杆作为扳手锁止弹性元件355，V杆的一端固定连接壳体321，另一端设置上述导向件351，“V”形杆采用刚性材料，“V”形杆的V型弯折处较小程度的弯折，从而提供给导向件351一个“脱离所述主通道341进入从通道343的力”，但这样的刚性的“V”形杆容易磨损断裂；在另一实施例中，采用能发生较大形变的弹性材料构成扳手锁止弹性元件355，扳手锁止弹性元件355例如为“V”金属弹片522或者一个弹簧，一端固定连接壳体321，另一端设置导向件351，由于锁止弹性元件的弹性较大，则于其连接的导向件351在通道内移动的稳定性差，不能很好地实现锁止扳手在中间位置的功能。综上可知，本实施例中采用的通过导向枢转件350来实现扳手锁止弹性元件355与导向件351之间的间接连接和施加上述进入从通道343的力，除了上述益处，还具有如下益处：不易出现零件损坏或断裂的问题，保证了导向件351移动的稳定性，进一步保证了扳手锁止机构的稳定性。优选地，本实施例中扳手锁止弹性元件355为弹簧。
导向枢转件350还包括从枢接端352延伸出的止退端354，扳手从打开位置运动至中间位置之前，止退端354与送夹驱动机构保持脱离状态；扳手从所述中间位置运动至闭合位置之前，止退端354与送夹驱动机构保持抵接状态以防止送夹驱动机构后退。
具体的，如图27所示，本实施例中，导向枢转件350从枢接端352延伸出的第三 转臂，第三转臂的末端为止退端354，从而导向件351、止退端354和受力端353均绕所述枢接端352运动。初始时刻，未使用施夹钳时扳手在打开位置，导向枢转件350位于送夹驱动机构的下方，止退端354与送夹驱动机构无接触；在上述扳手正向运动而导向件351在主通道341中向开口部342运动时，送夹驱动机构向前运动，止退端354仍然与送夹驱动机构无接触；在导向件351进入从通道343向锁止点b运动时，止退端354与送夹驱动机构的末端的距离逐渐减小直至抵住其末端，阻止其发生后退；在导向件351沿着引导壁345退出从通道343并回到主通道341时，钳口驱动机构在施夹，止退端354始终保持与送夹驱动机构的末端的抵接阻止其发生后退，从而保证了施夹过程中位于钳口组件100内的夹子10始终不会后退，保证了施夹的稳定性。具体的，如图25-26所示，从通道343从主通道341的开口部342朝向远离扳手的枢转端334的方向延伸，起点a和终点c到扳手的枢转端334的距离均小于所述锁止点b到扳手的枢转端334的距离。
如图26所示，导向件351具有扳手正向运动时的第一运动路径和扳手到达所述闭合位置后复位运动时的第二运动路径，第一运动路径包括主通道341和从通道343，第二路径包括主通道341且不包括从通道343。上述运动路径为导向件351相对运动的路径。运动路径为运动中到达的通道形成的路径。扳手达到闭合位置时，用户松开扳手，则扳手在扳手复位机构的作用下朝向打开位置复位运动，在此期间，不需要任何停止，第二运动路径屏蔽从通道343，避免在复位运动时导向件351进入从通道343而被锁止点b锁止，即避免了正向运动中起重要作用的扳手锁止机构在复位运动中起到反向作用，实现了扳手的一步复位到底。
进一步，如图29-33D所示，为实现上述屏蔽从通道343，施夹钳还包括用于切换第一运动路径和第二运动路径的路径切换件360。路径切换件360位于所述壳体321内，路径切换件360具有两个状态，路径切换件360处于第一状态时，路径切换件360让开从通道343以允许导向件351进入或退出从通道343，路径切换件360处于第二状态时，路径切换件360阻挡导向件351进入从通道343。导向件351为沿着径向延伸的柱体，穿过导引通道340，导向件351包括相连接的第一部分和第二部分，导向件351的第一部分容置于导引通道340，第二部分在导引通道340外且凸出于扳手主体331的表面，导向件351的第一部分在导引通道340内运动时，第二部分相应的会随着第一部分的运动而形成一个活动空间，当路径切换件360封堵住导向件351的第一部分从开口部342进入从通道343途经的空间时，可以阻止导向件351进入从通道343，并不需要封堵整个从通道343，当路径切换件360封堵住导向件351的第二部分进入上述活动空间或进 入上述活动的途径，则阻止了导向件351的第一部分进入从通道343，即也同样可以阻止导向件351进入从通道343。
导向件351从主通道341的开口部342进入和退出从通道343，该开口部342包括起始点342a和终止点342b，起始点342a和终止点342b之间为从通道343的出入口，起始点342a靠近主通道341的起点a，终止点342b靠近主通道341的终点c。在一种实施方式中，扳手正向运动，导向件351位于所述主通道341的开口部342的起始点342a时，路径切换件360处于第一状态，导向件351进入从通道343，导向件351在从通道343中运动至开口部342的终止点342b的期间，路径切换件360处于第一状态，使得扳手正向运动时导向件351能顺利进入和退出从通道343；扳手到达闭合位置后做复位运动，至少在导向件351位于主通道341的开口部342的终止点342b时，路径切换件360处于第二状态且保持第二状态至少至导向件351运动至主通道341的开口部342的起始点342a，使得在复位运动期间导向件351始终不能进入从通道343。如上的路径切换件360的状态控制逻辑，需基于开口部342的结构来设计，为保证形成上述第一运动路径和第二运动路径的基础。
本实施例中，如图31A-31D所示，路径切换件360具有如下较容易实现的状态逻辑，扳手正向运动且从打开位置起运动至到达闭合位置前的期间，路径切换件360处于第一状态，使得正向运动时导向件351可以顺利进入和退出从通道343；扳手正向运动且到达闭合位置的时刻，路径切换件360从第一状态切换为第二状态，扳手到达闭合位置后做复位运动且从闭合位置起运动至到达中间位置的期间，路径切换件360处于第二状态，使得从闭合位置开始的复位运动时导向件351始终不能进入从通道343。本实施方式的路径切换件360的状态控制逻辑，基于扳手的位置来控制路径切换件360的状态，实现相同功能且更稳定，设计更加简单。
进一步的，扳手到达闭合位置开始复位运动，当位于打开位置时，路径切换件360处于第一状态。即在扳手从中间位置复位运动到打开位置的期间，路径切换件360从第二状态切换到了第一状态。如此，该连续施加的施夹钳，在一个使用周期结束时，路径切换件360恢复到了初始状态，以便下一个使用周期正常发挥作用
因此，在扳手做正向运动的过程中，至少在导向件351途经开口部342时，路径切换件360处于第一状态；在扳手做复位运动的过程中，至少在导向件351途经开口部342时，路径切换件360处于第二状态。
进一步，为实现上述路径切换件360的状态切换，施夹钳还包括路径驱动件370， 位于壳体321内。路径切换件360设置于扳手和主体320中的一个，路径驱动件370设置于扳手和主体320中的另一个。具体的，路径切换件360设置于扳手和主体320的壳体321中的一个，路径驱动件370设置于扳手和主体320的壳体321中的另一个。扳手正向运动或复位运动时，当路径驱动件370抵接路径切换件360时驱动路径切换件360运动，从而路径切换件360在第一状态和第二状态之间切换。扳手的运动带动路径驱动件370，再带动路径切换件360以改变其状态，最后回到改变扳手自身的导引通道340的运动路径的切换，扳手的运动是扳手的运动路径切换的动力源，实现一个内循环，简单可靠，不需要额外的动力源来改变运动路径。
扳手正向运动或复位运动时，路径驱动件370可选择地与路径切换件360抵接或脱离，脱离时，理想情况下路径切换件360不运动而处于一个固定位置，且状态保持不变，抵接时，路径切换件360运动而位置变化，且状态可能发生变化；在另一实施例中，路径切换件360可以持续与路径驱动件370抵接而持续运动，当运动到某一位置时，发生第一状态和第二状态之间的切换。
具体的，本实施例中，如图29所示，路径切换件360包括枢转部361、触发部和执行部363，所述路径切换件360以枢转部361为轴进行旋转运动，所述触发部包括分别设置于枢转部361的两侧的第一触发部362a和第二触发部362b；路径驱动件370为导向肋，导向肋包括第一导向肋371和第二导向肋373，第一导向肋371具有第一导向斜面372，第二导向肋373具有第二导向斜面374，第一导向肋371位于所述第一触发部362a的前侧，第二导向肋373位于第二触发部362b的后侧；第一触发部362a抵住第一导向肋371并沿第一导向斜面372移动时，路径切换件360朝向第一方向转动，路径切换件360从第一状态向第二状态切换；第二触发部362b抵住第二导向肋373并沿着第二导向斜面374移动时，路径切换件360朝向第二方向旋转，路径切换件360从第一状态向第二状态切换；路径切换件360位于第一状态时，执行部363让开所述从通道343以允许导向件351进入或退出从通道343，路径切换件360位于第二状态时，执行部363阻挡导向件351进入从通道343。
扳手正向运动期间路径切换件360与路径驱动件370发生相对运动，上述前侧和后侧，分别指的是，扳手正向运动时第一导向肋371位于路径切换件360相对于路径驱动件370的相对运动方向上的前侧，扳手正向运动时第二导向肋373位于路径切换件360相对于路径驱动件370的相对运动方向上的后侧。
如图29所示，本实施例中，上述枢转部361为转轴，固定在扳手主体的水平的销 孔内，第一触发部362a和第二触发部362b为从转轴255延伸出的两个板，分别为第一板362a’和第二板362b’，且呈钝角，执行部363为连接第一板362a’的肋363’；路径切换件360的枢转部361连接扳手，特别是扳手主体33上靠近从通道343的位置，第一板362a’和第二板362b’的钝角朝向壳体321的内侧，导向肋设置于壳体321的内侧，第一导向斜面372和第二导向斜面374的斜面朝向扳手主体331。在其他实施方式中，第一板362a’和第一板362a’可呈锐角或直角。
路径切换件360与路径驱动件370的上述前侧和后侧的布置，使得扳手正向运动或复位运动时，路径切换件360选择地与路径切换件360抵接或脱离。扳手的位置还包括位于中间位置和闭合位置之间的紧靠闭合位置的第一临近位置，和位于打开位置和中间位置之间的紧靠打开位置的第二临近位置。具体的，如图33A-33D路径切换件360与路径驱动件370的运动过程如下：初始时刻，扳手位于打开位置，路径切换件360相对于自身的枢转部361位于第一位置，处于第一状态，与第一导向肋371脱离状态；扳手正向运动且从打开位置运动到第一临近位置之前的期间，路径切换件360随着扳手而绕着扳手的枢转端334运动，第一触发部362a逐渐靠近第一导向肋371，路径切换件360相对于自身的枢转部361未发生第一方向或第二方向的运动，仍位于第一位置和处于第一状态；扳手正向运动且到达第一临近位置的时刻，路径切换件360开始抵接第一导向肋371的第一导向斜面372，路径切换件360仍处于第一位置和处于第一状态；扳手继续正向运动，在从第一临近位置运动到闭合位置之前的期间，路径切换件360的第一触发部362a沿着第一导向斜面372移动，路径切换件360朝向第一方向快速转动，脱离第一位置，但仍然处于第一状态；扳手到达闭合位置的时刻，路径切换件360从第一位置起在第一方向上总共转动了A角度，路径切换件360相对于自身的枢转部361位于第二位置，且路径切换件360从第一状态切换到了第二状态；扳手复位运动且从闭合位置到第二临近位置的期间，路径切换件360随着扳手而绕着扳手的枢转端334运动，第二触发部362b逐渐靠近第二导向肋373，且与第一导向肋371也为脱离状态，路径切换件360相对于自身的枢转部361未发生第一方向或第二方向的运动，保持处于第二位置和处于第二状态；扳手复位运动且到达第二临近位置的时刻，路径切换件360开始抵接第二导向肋373的第二导向斜面374，路径切换件360仍处于第二位置和处于第二状态；扳手继续复位运动，在从第二临近位置运动到打开位置之前的期间，路径切换件360的第二触发部362b沿着第二导向斜面374移动，路径切换件360朝向第二方向快速转动，脱离第二位置，但仍然处于第二状态；扳手到达打开位置的时刻，路径切换件360从第二位置起在第二 方向上总共转动了A角度，路径切换件360又回到了第一位置，且路径切换件360从第二状态切换到了第一状态。上述第一导向肋371和第二导向肋373的长度较短，实现了较快的A角度的转动，比较快速的第一状态和第二状态的切换，结构简单，成本低，且在路径切换件360与路径驱动件370的脱离状态时，路径切换件360具有稳定位置和稳定的状态，施夹钳的状态更稳定。
在其它实施例中，与本实施例不同的是，扳手的位置还包括位于打开位置和中间位置之间的第三临近位置和第四临近位置，第四临近位置更靠近打开位置，扳手复位运动在到达第三临近位置之前，第二触发部362b与第二导向肋373为脱离状态，具体路径切换件360的位置、运动和状态同上不再赘述，扳手从第三临近位置运动至第四临近位置的期间，第二触发部362b抵接第二导向肋373并沿着第二导向斜面374朝第二方向旋转，在位于第四临近位置时，路径切换件360实现了回到第一位置和第一状态，具体同上所述；而在后续的扳手从第四临近位置运动至打开位置的期间，第二导向肋373与路径切换件360处于脱离状态，路径切换件360保持在第一位置和第二状态。这样的方式，同样可以实现路径切换件360恢复到初始状态，以便在连续施加的施夹钳的下一个使用周期正常发挥作用。
本实施例中，施夹钳还包括定位机构，如图32所述，定位机构包括第一定位件381和第二定位件382，第一定位件381设置在路径切换件360的枢转部361，路径切换件360以枢转部361为转轴255向第一方向或第二方向运动时，第一定位件381以枢转部361为转轴255同步的运动，第二定位件382包括设置于扳手的第一凹坑383、第二凹坑384和位于第一凹坑383和第二凹坑384之间的凸起部385，第一定位件381和凸起部385的其中一个为弹性元件，第一定位件381位于第一凹坑383时，路径切换件360处于第一状态；第二定位件382位于第二凹坑384时，所述路径切换件360处于第二状态。这样的定位机构，第一定位件381只能固定在第一凹坑383或者第二凹坑384，不能位于其他位置，则定位了路径切换件360相对于自身的枢转部361只能位于固定的两个位置，如上述的第一位置和上述的第二位置，且在第一位置时路径切换件360处于第一状态，在第二位置时路径切换件360处于第二状态。
第一定位件381位于第一凹坑383，用户操作扳手使得路径切换件360向第一方向转动时，第一定位件381也向第一方向转动，第一定位件381与凸起部385抵接，由于其一为弹性元件，可被压缩，第一定位件381可顺利越过凸起部385进入第二凹坑384；假设正在越过凸起部385的途中，用户停止操作扳手，则第一定位件381还能在该弹性 元件的反作用力下，回到第一凹坑383。同理，第一定位件381从第二凹坑384越过凸起部385而顺利进入第一凹坑383，不再赘述。
根据上述内容，路径切换件360与路径驱动件370可处于脱离状态，如没有上述定位机构，则路径切换件360相对于自身的枢转部361可自由运动，当施夹钳被震动或摇动时，路径驱动件370将自由的朝第一方向或第二方向转动，从而在需要处于第一状态的期间意外的进入第二状态，在需要处于第二状态的期间意外的进入第一状态，施夹钳的正向运动的第一运动路径和复位运动的第二运动路径被破坏，不能正常使用。因此，上述定位机构防止了路径切换件360意外的移动，保证了施夹钳的正常的运动路径。
第一定位件381可以为第一凸筋，背向上述钝角而凸出于枢转部361，凸起部385为第二凸筋。在其它实施例中，弹性元件也可以是一个C型凸起的金属杆，具有弹性。
本实施例中，钳口组件100具有一种能稳定地引导、夹持和压缩第一夹子的设计，具体细节如下。
钳口组件100包括第一钳臂1和第二钳臂1’。第一钳臂1的结构与第二钳臂1’的结构相同，本发明着重描述第一钳臂1的结构。如图34所示，第一钳臂1包括底部11、第一侧部12和第二侧部13，底部11、第一侧部12与第二侧部13使得第一钳臂1的横截面大致为U形。第一侧部12包括第一导向部15和第一容置部17，第一导向部15和第一容置部17均设置于第一侧部12的内壁，第二侧部13包括第二导向部16和第二容置部18，第二导向部16和第二容置部18均设置于第二侧部13的内壁。底部11位于第一导向部15与第二导向部16之间，第一容置部17与第二容置部18之间形成缺口14。第一导向部15与第二导向部16的结构相同，第一容置部17与第二容置部18的结构相同，本发明着重描述第一导向部15和第一容置部17的结构。第一导向部15包括导向面51，导向面51的至少第二部分53大致为弧形。导向面51包括与底部11的上表面齐平的第一部分52，还包括高于底部11的上表面的第二部分53，第二部分53由第一部分52沿大致为弧形的方向延伸而形成，第一部分52与第二部分53平滑过渡。第一容置部17位于第一导向部15的远方，第一容置部17为凹陷。第一容置部17包括近侧面71和远侧面72，近侧面71与导向面51的第二部分53交会，并且交会处73形成圆角。交会处73是第二部分53的远端。
钳口组件100还包括止挡件2。止挡件2共有四个，止挡件2设置于第一钳臂1和第二钳臂1’，分别与第一钳臂1的第一导向部15和第二导向部16、第二钳臂1’的两个导向部相配合。四个止档件2的结构相同，以其中与第一导向部15相配合的第一止挡 件21为例说明它们的结构。如图34-38所示，第一止挡件21位于第一导向部15的上方，第一止挡件21包括基部23和活动部，活动部包括端部22和中间部25，中间部25位于端部22与基部23之间。基部23的尺寸大于中间部25和端部22，基部23卡合于第一侧部12设置的槽中，以此使得基部23固定于第一侧部12。中间部25和端部22均位于第一侧部12内壁的内侧。活动部在上、下方向可以运动。由此，第一导向部15、第一止挡件21共同形成夹子10的导向空间。与之结构相同，第一钳臂1和第二钳臂1’还有三个导向空间。第一钳臂1和第二钳臂1’共有四个导向空间，一一对应地与夹子10的四个突出部进行配合。在初始状态下，第一止挡件21没有与夹子10的突出部配合，导向面51的第二部分53与第一止挡件21之间的距离沿朝向导向面51远端的方向减小。上述距离在交会处73与第一止挡件21之间达到最小。确定上述距离的方式，例如可采用沿第二部分53的某一点与第一止挡件21下表面的最小距离，上述最小距离沿朝向导向面51远端的方向减小。
止挡件2具有弹性，包括以下两种方式。在本实施例表明的一种方式中，止挡件2的材质具有弹性，材质包括但不限于金属，使得止挡件2有保持其原有位置的趋势。在其它实施例表明的另一种方式中，止挡件2的至少一部分连接于钳臂，钳臂还设置有扭簧，扭簧的一端连接于钳臂，另一端连接于止挡件2，使得止挡件2有接近导向面51的趋势。止挡件2具有弹性，使得夹子10的突出部在导向空间内受到止挡件2的约束，从而使得夹子10在向远方移动的过程中保持在导向空间内，进而使得夹子10逐渐张开。在止挡件2具有弹性的基础上，止挡件2包括基部23和活动部，活动部可上、下运动，包括两种方式：在本实施例表明的一种方式中，基部23与钳臂连接，活动部由于止挡件2的材质具有的弹性而能够上、下运动；在其它实施例表明的另一种方式中，基部23可枢转地连接于钳臂，活动部也随之可以枢转从而可以上、下运动，扭簧的一端连接于钳臂，另一端连接于活动部，使得活动部有向接近导向面51运动的趋势。活动部可上、下运动，能够为突出部让出空间使其顺利离开导向空间并进入容置部。
第一突出部41的最大尺寸与第二突出部42的最大尺寸大致相同，第一突出部41的形状与第二突出部42的形状可以相同也可以不同，由此，第一突出部41和第二突出部42可适用于基本相同的导向空间。需要说明的是，也可将第一突出部41的尺寸设置得与第二突出部42不同，甚至可将两个第一突出部41的尺寸设置得不同，也可将两个第二突出部42的尺寸设置得不同，此时，将与突出部配合的导向空间适当加以改变即可，即导向部、止挡件2的相对位置、形状和/或尺寸适当改变。
在钳口组件100张开的状态下，即打开到底的状态下，在送夹驱动机构的驱动下，夹子10被推动向远方移动从而自夹盒220进入钳口组件100，夹子10的第一突出部41和第二突出部42分别进入对应的导向空间，并且在对应的导向空间内向远方移动，直至夹子10位于钳口组件100的远端，第一突出部41的至少一部分和第二突出部42的至少一部分分别进入容置部并且容置于容置部。第一突出部41和第二突出部42均受到导向部的导向作用，由此在止挡件2的约束下沿着导向面移动，使得夹子10沿期望的方向移动。在送入钳口组件100之前，受限于夹盒220的尺寸和内部空间，夹子10被部分压缩后存储在夹盒220中，此时夹子10处于未完全打开的状态，一段时间的被压缩使得夹子10在脱离套管210后，需要外力使其恢复原有形状，即夹子10张开的形状。被压缩是指夹子10的两个夹臂相互靠近，但未卡合。由于夹子10自装配至夹盒220后至使用会持续一段时间，这段时间的被压缩，使得夹子10有保持被压缩后形状的趋势。第一突出部41和第二突出部42还均受到止挡件2的约束，使得它们在导向空间内向远方移动的过程中，克服上述保持被压缩后形状的趋势，使得夹子10的第一夹臂31和第二夹臂32在向远方移动的过程中逐渐张开，直至恢复其原有形状，或者与钳口组件100张开的角度保持一致。夹子10恢复其原有形状，或者与钳口组件100张开的角度保持一致，使得夹子10的两个夹臂之间的夹持空间最大化，便于将待夹持的组织容纳于其中。在初始状态下，夹子10的突出部未进入导向空间从而未受到止挡件2的约束，此时导向面51的第二部分53与对应的止挡件2之间的距离沿朝向导向面51远端的方向减小，直至第二部分53的远端(即导向面51的远端)与止挡件2之间的距离达到最小。由于上述距离沿朝向导向面51远端的方向减小，使得夹子10的第一突出部41和第二突出部42在向导向面51远端方向移动的过程中逐渐接近导向空间的出口(即交会处73)和接近容置部的入口，从而使第一突出部41和第二突出部42能够顺利地进入容置部。上述距离沿朝向导向面51远端的方向减小，例如通过导向面51的至少第二部分53大致为弧形来实现。第一突出部41和第二突出部42在导向空间内向远方移动的过程中，它们受到的约束力越来越大，使得夹子10的突出部受导向面51的第二部分53的导向作用的同时，受到止挡件2更大的约束，抑制夹子10的突出部的移动速度，防止突出部在离开导向空间后由于速度过快而越过容置部的入口从而不能进入容置部。进一步的，在第一突出部41和第二突出部42到达和越过交会处73(即容置部的近侧面与导向面51的第二部分53交会形成的交会处73)后，在止挡件2的约束作用下它们不会继续沿原有方向移动从而不进入容置部。第一突出部41和第二突出部42越过交会处73后进入容置部，此时，夹 子10移动到位，处于上述准备位置，完成送夹。由于止挡件2的活动部可上下运动，因此，在导向面51的第二部分53与对应的止挡件2之间的距离沿朝向导向面51远端的方向减小的情况下，在止挡件2对夹子10的突出部加以约束的同时，止挡件2的活动部通过运动可以给夹子10的突出部让出空间，使其在被约束的情况下可以离开导向空间并进入容置部。止挡件2对于突出部的约束，例如可通过止挡件2抵接突出部来实现。第一突出部41的至少一部分和第二突出部42的至少一部分分别容置于容置部，使得夹子10在钳口闭合过程中即在施夹过程中保持位置的稳定。进一步的，容置部为凹陷，有助于夹子10的第一突出部41和第二突出部42持续保持在容置部中而不易脱离。进一步的，容置于容置部中的第一突出部41和第二突出部42，均受到抵接于它们的止挡件2施加的力，使得第一突出部41和第二突出部42更稳定地保持在容置部中。上述力例如可以是大致向下和向上的力，也可以是大致朝向远方的力，这与止挡件2与突出部抵接的部位相关。第一突出部41和第二突出部42的位置稳定，使得夹子10在钳口闭合过程中保持位置的稳定，保证了夹持的效果。需要说明的是，本发明还包括送夹止退机构，用于防止送夹驱动机构后退，进而防止夹子10后退，容置部以及止挡件2的作用是使得夹子10在钳口组件100远端的位置保持稳定，以便于顺利施夹。
随后，钳口组件100进入闭合过程，第一钳臂1和第二钳臂1’相互靠近直至到达闭合的行程止点，此时钳口组件100完成闭合。在钳口组件100闭合的过程中，如果有第一突出部41和/或第二突出部42不容置于容置部，将导致钳臂通过容置部不能对至少一个突出部施力，会导致夹子10扭转或脱离正确位置，使得两个夹臂不能卡合，从而导致夹持失效。第一突出部41的至少一部分和第二突出部42的至少一部分均容置于容置部，由此，在钳口组件100闭合过程中，第一钳臂1带动第一夹臂31、第二钳臂1’带动第二夹臂32绕连接部转动从而使得第一夹臂31、第二夹臂32相互接近，最终第一夹臂31的第一卡合部卡合于第二夹臂32的第二卡合部，使得第一夹臂31与第二夹臂32相互固定。在钳口组件100闭合过程中，夹子10保持位置的稳定，避免了夹子10发生不期望的移动或扭转，而导致的卡合失效和夹持失效。在突出部容置于容置部后，进一步地，两个第一突出部41均被止挡件2抵接，两个第二突出部42也均被止挡件2抵接，进一步确保了突出部被容置于容置部中，不会从容置部中脱离。
在另一实施例中，第一钳臂1的结构与第二钳臂1’的结构不相同。第一钳臂1的结构与上一实施例相同。第二钳臂1’与第一钳臂1结构上的区别在于，第二钳臂1’的第一导向部15的导向面51的第一部分52包括行程延长结构，第二钳臂1’的第二导向 部16的导向面51的第一部分52也包括行程延长结构。优选的，行程延长结构为凹坑80。行程延长结构使得夹子10的第一夹臂31的行程变长，在相同的时间内第二夹臂32沿朝向远方移动的距离大于第一夹臂31沿朝向远方移动的距离，由此使得夹子10在移动的过程中沿图39中的逆时针方向转动，使得夹子10的第一突出部41与第二突出部42位于同一竖直线上，改变了被压缩时第一突出部41与第二突出部42不在同一竖直线上的状态，从而避免了夹子10在移动过程中受力不均衡而导致的移动不顺畅，也避免了第一夹臂31的第一突出部41先进入容置部而受到的冲击。需要说明的是，当非对称的夹子10被压缩在夹盒220中时，由于两个夹臂曲率的不同，第一夹臂31的第一突出部41位于第二夹臂32的第二突出部42的远方。在本实施例中，第二钳臂1’的第一导向部15和第二导向部16的导向面51的第一部分52的除行程延长结构以外的部分，可以与底部11的上表面齐平。
施夹钳还包括第一弹性元件60。如图41-42所示，第一钳臂1和第二钳臂1’均包括容纳槽，容纳槽为通槽，用于在钳口组件100闭合时容纳送夹驱动机构，特别是上述送夹驱动机构的送夹块231和部分的弹性推杆232，避免钳口组件100闭合时，第一钳臂1和第二钳臂1’与送夹驱动机构产生干涉。第一钳臂1的近端具有突起19，夹盒220具有孔404，突起19容置于孔404中，使得第一钳臂1的近端可枢转地连接至夹盒220的远端，第二钳臂1’的近端可枢转地连接至夹盒220的远端，第一弹性元件60的一端与第一钳臂1的近端相连接，另一端与第二钳臂1’的近端相连接。第一弹性元件60的弹力使得第一钳臂1的近端与第二钳臂1’的近端相互远离，进而使得第一钳臂1和第二钳臂1’保持在张开的状态(钳口组件100的打开到底状态)。第一钳臂1的近端和第二钳臂1’的近端均位于套管210内，如图42所示，套管210的远端与第一钳臂1的下表面和第二钳臂1’的上表面配合。套管210被钳口驱动机构驱动而移动，套管210的远端也随之移动。随着套管210的远端向远方移动，套管210的远端与第一钳臂1的下表面和第二钳臂1’的上表面配合，驱动第一钳臂1和第二钳臂1’枢转使得它们相互靠近，实现钳口组件100的闭合。钳口组件100闭合后，第一弹性元件被压缩而蓄能。随着套管210向近方移动，套管210的远端随着向近方移动，第一弹性元件60被压缩后积蓄的能量被释放，第一弹性元件60的弹力使得第一钳臂1的近端与第二钳臂1’的近端相互远离，进而使得第一钳臂1和第二钳臂1’张开。利用第一弹性元件60实现钳口组件100的张开，避免了采用复杂的机构实现上述功能。优选的，第一弹性元件60为U形弹簧，被压缩后，U形弹簧的两个臂相互靠近从而实现蓄能。U形弹簧占用的空间较小， 其弹力也较普通的弹簧大。上述张开的含义与打开相同。
需要说明的，远方可以是大致朝向远方的方向，包括纵向方向，也包括与纵向方向呈一定角度的方向。
结合图43至图45，为本发明的第二实施例，与第一实施例相同，本实施例涉及一种施夹钳。
本实施例与第一实施例相比，区别在于驱动件在致动件330作用下选择性驱动送夹驱动机构或推夹驱动机构；在第一状态时，驱动件与推夹驱动机构分离，与送夹驱动机构结合以驱动送夹驱动机构运动；在第三状态时，驱动件与送夹驱动机构分离，与推夹驱动机构结合以驱动推夹驱动机构运动。本实施例中，驱动件驱动送夹驱动机构运动时，推夹驱动机构不是后退蓄能，而是在初始位置不动，不发生任何运动；这样，也能够有效地保证送夹动作与推夹动作不同步，不会发生干涉。与第一实施例相比，在能够有效地保证施夹钳的安全性和可靠性的同时，施夹钳的整体结构更加简单。
钳口驱动机构套设于送夹驱动机构和推夹驱动机构，用于驱动钳口组件100闭合；在上述第三状态时，驱动件与钳口驱动机构和推夹驱动机构同时结合，以驱动钳口驱动机构和推夹驱动机构同步运动。在本实施例中，由于钳口驱动机构和推夹驱动机构同步运动，因此与第一实施例相比，传动机构无第二状态。送夹驱动机构包括送夹驱动管402，与送夹驱动管402连接的送夹组件，送夹驱动管402驱动送夹组件运动，以驱动夹子10进入钳口组件100，具体结构同前述；钳口驱动机构包括钳口驱动管432、与钳口驱动管432连接的套管210，具体结构同前述；推夹驱动机构包括推夹驱动管459，与推夹驱动管459连接的推夹驱动件，推夹驱动件沿纵向方向间隔设置有多个侧腔252，每个侧腔252对应安装有一个推夹块253，推夹驱动件驱动推夹块253运动，本实施例中，推夹驱动件为推夹杆251，推夹杆251的具体结构同前述。驱动件的结构同前述或后述切换机构的结构，此处不再展开描述。为了使得整体结构更加紧凑，推夹驱动管459套设于送夹驱动管402，推夹驱动管459与送夹驱动管402共轴，送夹组件与推夹驱动件位于夹盒220的两侧，具体地，送夹组件位于夹盒220的外侧，推夹驱动件位于夹盒220的内侧。为了实现驱动件与钳口驱动机构和推夹驱动机构同时结合，推夹驱动管459的近端与钳口驱动管432的近端齐平，驱动件的远端面与二者的近端面结合推动其同步运动，当然可以理解的是，推夹驱动管459的近端与钳口驱动管432的近端也可以不齐平，此时，只要保证驱动件与推夹驱动管459抵接的远端面到推夹驱动管459的距离等于驱动件与钳口驱动管432抵接的远端面到钳口驱动管432的距离即可。
当然，在另一实施例中，在第三状态时，驱动件先驱动推夹驱动机构运动至与钳口驱动机构结合，再驱动钳口驱动机构和推夹驱动机构同步运动。钳口驱动机构套设于送夹驱动机构和推夹驱动机构，初始状态时，推夹驱动管459的近端到驱动件的远端的距离小于钳口驱动管432的近端到驱动件的远端的距离，如此，驱动件运动过程中，先与推夹驱动管459结合，推动推夹驱动管459运动至与钳口驱动驱动管结合，再推动钳口驱动管432和推夹驱动管459一起运动。同样地，为了使得整体结构更加紧凑，推夹驱动管459套设于送夹驱动管402。
钳口驱动机构还包括第二复位件446，如弹性元件。弹性元件套设在钳口驱动管432外，一端与钳口驱动管432外表面上的挡板434抵接，另一端向前延伸，与施夹钳的壳体321内壁抵接，弹性元件用于在钳口驱动机构前进时储存能量，弹性元件恢复形变而释放该能量从而为钳口驱动机构的复位提供动力。推夹驱动机构还包括第三复位件456，如弹性元件。弹性元件一端与施夹钳的壳体321内壁抵接，另一端向后延伸，与推夹驱动管459的远端面抵接，弹性元件用于在推夹驱动机构前进时储存能量，弹性元件恢复形变而释放该能量从而为推夹驱动机构的复位提供动力。送夹驱动机构还包括第一复位件418，如弹性元件。弹性元件一端与推夹驱动管459内壁的凸筋436抵接，另一端向后延伸，与送夹驱动管402的远端面抵接，弹性元件用于在送夹驱动机构前进时储存能量，弹性元件恢复形变而释放该能量从而为送夹驱动机构的复位提供动力。
下面详细以在第三状态时，驱动件与钳口驱动机构和推夹驱动机构同时结合，以驱动钳口驱动机构和推夹驱动机构同步运动为例，介绍施夹钳实现送夹、钳口组件100闭合、推夹的工作过程：
操作者按压致动件330，使致动件330从打开位置朝中间位置运动，驱动件在致动件330作用下驱动送夹驱动机构前进，送夹驱动管402近端和驱动件的远端逐渐向钳口驱动管432近端、推夹驱动管459靠近；当致动件330运动到中间位置时，驱动件的引导件运行到壳体321内的第二引导面496上，卡块482与送夹驱动管402的卡槽脱离，驱动件与送夹驱动机构分离，送夹驱动机构前进行程结束，位于夹盒220最远端的夹子10被送入钳口组件100内(送夹动作完成)，驱动件的远端面与钳口驱动管432的近端面及推夹驱动管459的近端面抵接。送夹止退机构的止退端354能够在切换机构与送夹驱动机构分离后，抵住送夹驱动管402以防止因送夹驱动机构后退而使钳口组件100内的夹子10后退。继续按压致动件330，致动件330从中间位置朝闭合位置运动，送夹止退机构逐渐脱离送夹驱动管402；驱动件在致动件330作用下推动钳口驱动机构及推夹 驱动机构前进，钳口驱动管432驱动套管210前进以闭合钳口组件100，推夹驱动机构前进以将夹盒220内的剩余的夹子10前移一个工位，致动件330运动到闭合位置时，钳口组件100闭合(钳口闭合动作完成)且夹盒220内的剩余的夹子10均前移一个工位(推夹动作完成)，送夹止退机构完全脱离送夹驱动管402，送夹驱动管402在第一复位件418作用下复位。释放致动件330，钳口驱动机构在第二复位件446的作用下复位，且推夹驱动机构在第三复位件456的作用下复位。也就是说，在该工作过程中，切换机构先与钳口驱动机构、推夹驱动机构分离，且与送夹驱动机构结合以驱动送夹驱动机构运动，后与送夹驱动机构分离，且与钳口驱动机构、推夹驱动机构同时结合以驱动钳口驱动机构和推夹驱动机构同步运动。
下面详细介绍，本发明中施夹钳由一个致动件330驱动三个驱动机构的相关工作过程。
切换机构分别与送夹驱动机构、钳口驱动机构和推夹驱动机构连接；切换机构与致动件330抵接，用于接收动力；在致动件330的作用下，切换机构按照预设次序驱动送夹驱动机构执行送夹动作、驱动钳口驱动机构执行钳口闭合动作、驱动推夹驱动机构执行推夹动作；致动件330的个数为一个。
这样设计的好处是，医生操作一个致动件330，通过致动件330作用于切换机构，进而作用于三个不同的驱动机构---送夹驱动机构、钳口驱动机构和推夹驱动机构，使得三个不同的驱动机构能够按照预设次序完成相应的动作。即医生操作一个致动件330就能完成送夹动作、钳口闭合动作及推夹动作这三个动作，且这三个动作满足预设次序，不会出现相互干扰的问题，保证了医生手术操作的安全性和顺畅性，且操作简单，对用户友好。
根据施夹钳的工作方式，钳口闭合动作、送夹动作、推夹动作这三个动作不能同时进行，在本实施例中，三个动作遵循的预设次序为送夹动作的执行早于钳口闭合动作、推夹动作。也就是说送夹动作先被执行，钳口闭合动作和推夹动作后被执行，三个动作的顺序关系可以是第一实施例中的先执行送夹动作、后执行钳口闭合动作、再执行推夹动作；也可以是第二实施例中的先执行送夹动作、后执行钳口闭合动作和推夹动作，其中，钳口闭合动作和推夹动作可同步进行，也可先执行推夹动作再同步执行钳口闭合动作和推夹动作。具体地，由上述第一实施例描述可知，推夹驱动机构通过配接机构与切换机构连接，推夹驱动机构与切换机构运动方向相反；按压致动件330，切换机构在致动件330的作用下先与钳口驱动机构分离，且与送夹驱动机构结合以驱动送夹驱动机构 前进以执行送夹动作，后与送夹驱动机构分离，且与钳口驱动机构结合以驱动钳口驱动机构前进以执行钳口闭合动作；在切换机构驱动送夹驱动机构、钳口驱动机构前进时，同时驱动配接机构运动以驱动推夹驱动机构后退并存储能量；推夹驱动机构包括第三复位件456，用于存储该能量；释放致动件330，推夹驱动机构在第三复位件456的作用下前进以执行推夹动作。关于切换机构、送夹驱动机构、钳口驱动机构和推夹驱动机构的结构，位置关系及连接关系、运动关系等与第一实施例相同，此处不再赘述。
由上述第二实施例描述可知，在致动件330的作用下，切换机构先与钳口驱动机构、推夹驱动机构分离，且与送夹驱动机构结合以驱动送夹驱动机构运动，后与送夹驱动机构分离，且与钳口驱动机构、推夹驱动机构同时结合以驱动钳口驱动机构和推夹驱动机构同步运动；或者切换机构先与钳口驱动机构、推夹驱动机构分离，且与送夹驱动机构结合以驱动送夹驱动机构运动，后与送夹驱动机构分离，且与推夹驱动机构结合以驱动推夹驱动机构运动至与钳口驱动机构结合，进而驱动钳口驱动机构和推夹驱动机构同步运动。关于切换机构、送夹驱动机构、钳口驱动机构和推夹驱动机构的结构，位置关系及连接关系、运动关系等与第三实施例相同，此处不再赘述。
另外，关于致动件330的结构同前述，此处不再赘述。
结合图46至图50，为本发明的第三实施例，与前述实施例相同，本实施例涉及一种施夹钳。
本实施与前述实施例相比，区别在于切换机构的第一离合机构的结构不同。在本实施例中，利用导轨不同部分的高度差迫使第一离合件翻转以接合不同的驱动机构，以实现不同送夹动作和钳口闭合动作之间的切换。其中第一离合件包括枢转块514，离合切换机构同前述，送夹驱动机构的近端设置有第一凹槽524，枢转块514与该第一凹槽524相配合，以使第一离合件与送夹驱动机构结合。第二离合件为切换机构本体500的远端面。枢转块514可枢转的设置在切换机构本体500，枢转块514包括块状本体516、位于块状本体516下端的第一卡合凹口518、位于块状本体516后端的第一转轴520，枢转块514通过第一转轴520与切换机构本体500枢转连接，枢转块514上端置有安装导向柱490的孔404，枢转块514通过导向柱490与壳体321内的导轨滑动配合。第一离合件还包括设置在第一引导面494上方的弹片522，该弹片522给导向柱490向下的力，使得第一离合件能够更好地与送夹驱动机构结合。初始状态时，枢转块514的第一卡合凹口518保持与送夹驱动机构的第一凹槽524相接合，致动件330驱动切换机构前进，枢转块514随之前进且带动送夹驱动机构向远端移动以进行送夹动作，当导向柱490沿着斜 面498运动至第二引导面496上时，枢转块514绕着第一转轴520向上翻转以抬升第一卡合凹口518，从而使其与第一凹槽524脱离，即与送夹驱动管402分离，此时切换机构本体500的远端面与钳口驱动机构的近端部结合，进而驱动钳口驱动机构运动以执行钳口闭合动作。当然，容易想到的是，也可以调整枢转块514翻转的角度，使得在枢转块514的第一卡合凹口518与送夹驱动管402上的第一凹槽524分离时，第一卡合凹口518与钳口驱动机构的近端部结合，进而驱动钳口驱动机构运动。
结合图51至图54，为本发明的第四实施例，与前述实施例相同，本实施例涉及一种施夹钳。
本实施例与前述实施例相比，区别在于切换机构的结构不同。在本实施例中，切换机构不包括运动件和运动引导件，切换机构包括可枢转地设置在切换机构本体500上的转臂526，其中转臂526包括转臂本体528、位于转臂本体528下端的第二卡合凹口530、位于转臂本体528后端的第二转轴532，转臂526通过第二转轴532与切换机构本体500枢转连接，切换机构本体500套设于送夹驱动机构。初始状态时，转臂526的第二卡合凹口530与送夹驱动机构的第二凹槽534相接合；致动件330驱动切换机构前进以驱动送夹驱动机构向远端移动以进行送夹动作，当转臂526运动至与钳口驱动机构近端处时，继续驱动切换机构，转臂526的斜面在钳口驱动机构近端导引面的导引下向上翻转，从而使得转臂526的第二卡合凹口530脱离第二凹槽534，此时切换机构的远端面508运动至与钳口驱动机构结合，进而驱动钳口驱动机构前进。这样设计的好处是，简化了切换机构的结构，使得整体结构更加紧凑。
应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施方式中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。
上文所列出的一系列的详细说明仅仅是针对本发明的可行性实施方式的具体说明，它们并非用以限制本发明的保护范围，凡未脱离本发明技艺精神所作的等效实施方式或变更均应包含在本发明的保护范围之内。

Claims (23)

  1. 一种施夹钳，包括钳口组件和夹子，所述钳口组件包括钳臂，其特征在于，所述钳口组件还包括止挡件，所述止挡件的一部分与所述钳臂连接，所述止挡件具有弹性；所述钳臂包括导向部，所述止挡件和所述导向部形成导向空间，所述夹子的第一部在所述导向空间的至少一部分内移动时，所述止挡件对所述第一部进行约束。
  2. 如权利要求1所述的施夹钳，其特征在于，所述导向部包括导向面，所述导向面包括第一远端；在初始状态下，包括所述第一远端在内的至少部分所述导向面与所述止挡件之间的距离沿朝向所述第一远端的方向减小。
  3. 如权利要求2所述的施夹钳，其特征在于，所述距离在所述第一远端处最小。
  4. 如权利要求2所述的施夹钳，其特征在于，所述钳臂还包括容置部，所述容置部位于所述钳臂的第二远端，所述容置部用于容置位于所述钳口组件的第二远端的所述夹子的所述第一部的至少一部分。
  5. 如权利要求4所述的施夹钳，其特征在于，所述容置部为凹陷。
  6. 如权利要求5所述的施夹钳，其特征在于，所述凹陷包括近侧壁和远侧壁，所述近侧壁与所述第一远端交会。
  7. 如权利要求1所述的施夹钳，其特征在于，所述钳臂还包括容置部，所述容置部位于所述钳臂的第二远端，所述夹子的所述第一部的所述至少一部分容置于所述容置部内，所述止挡件抵接所述第一部。
  8. 如权利要求2所述的施夹钳，其特征在于，包括所述第一远端在内的至少部分所述导向面为弧形。
  9. 如权利要求2所述的施夹钳，其特征在于，所述导向面包括行程延长结构。
  10. 如权利要求9所述的施夹钳，其特征在于，所述行程延长结构为凹坑。
  11. 如权利要求1所述的施夹钳，其特征在于，所述钳臂包括第一钳臂和第二钳臂，所述施夹钳还包括夹盒，所述第一钳臂可枢转地连接于所述夹盒，所述第二钳臂可枢转地连接于所述夹盒；所述第一钳臂与所述第二钳臂之间连接有弹性元件。
  12. 如权利要求11所述的施夹钳，其特征在于，所述弹性元件为U形弹簧。
  13. 如权利要求1所述的施夹钳，其特征在于，所述止挡件包括基部和活动部，所述基部与所述钳臂连接，所述活动部和所述导向部形成所述导向空间。
  14. 如权利要求1所述的施夹钳，其特征在于，所述钳臂包括第一钳臂和第二钳臂， 所述第一钳臂包括两个所述导向空间，所述第二钳臂包括两个所述导向空间；所述第一部包括第一突出部和第二突出部，所述夹子包括第一夹臂和第二夹臂，所述第一夹臂包括两个所述第一突出部，所述第二夹臂包括两个所述第二突出部；所述夹子在所述钳口组件内移动时，两个所述第一突出部一一对应地位于所述第二钳臂的两个所述导向空间内，两个所述第二突出部一一对应地位于所述第一钳臂的两个所述导向空间内。
  15. 一种施夹钳，包括钳口组件和夹子，所述钳口组件包括钳臂，其特征在于，所述钳口组件还包括止挡件，所述止挡件的一部分与所述钳臂连接，所述止挡件具有弹性；所述钳臂包括容置部，所述容置部位于所述钳臂的第一远端；响应于所述夹子位于所述钳口组件的第一远端，所述夹子的第一部的至少一部分容置于所述容置部，所述止挡件抵接所述第一部。
  16. 如权利要求15的施夹钳，其特征在于，所述容置部为凹陷。
  17. 如权利要求15的施夹钳，其特征在于，所述钳臂包括第一钳臂和第二钳臂，所述施夹钳还包括夹盒，所述第一钳臂可枢转地连接于所述夹盒，所述第二钳臂可枢转地连接于所述夹盒；所述第一钳臂与所述第二钳臂之间连接有弹性元件。
  18. 如权利要求17的施夹钳，其特征在于，所述弹性元件为U形弹簧。
  19. 如权利要求15的施夹钳，其特征在于，所述钳臂还包括导向部，所述止挡件和所述导向部形成导向空间，所述夹子的所述第一部在所述导向空间的至少一部分内移动时受到约束。
  20. 如权利要求19的施夹钳，其特征在于，所述导向部包括导向面，所述导向面包括第二远端；在初始状态下，包括所述第二远端在内的至少部分所述导向面与所述止挡件之间的距离沿朝向所述第二远端的方向减小。
  21. 如权利要求21的施夹钳，其特征在于，所述距离在所述第二远端处最小。
  22. 如权利要求21所述的施夹钳，其特征在于，包括所述第二远端在内的至少部分所述导向面为弧形。
  23. 如权利要求15所述的施夹钳，其特征在于，所述止挡件包括基部和活动部，所述基部与所述钳臂连接，所述活动部和所述导向部形成所述导向空间。
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