Clamp applier handle capable of positioning semi-closed clamp and clamp applier

Abstract

The utility model provides a clip applier handle capable of positioning a semi-closed clamp and a clip applier. Wherein the clip applier handle comprises a handle main body and a trigger rotationally mounted on the handle main body, and the trigger can rotate among an initial position, a clamp semi-closed position and a percussion position which are arranged in sequence; a first stop piece capable of moving between a first position and a second position is arranged on the handle main body, and a blocking part is arranged on the trigger; the first stop piece is located at the first position to allow the trigger to rotate between the initial position and the clamp semi-closed position, and when the trigger is located at the clamp semi-closed position, the first stop piece is matched with the resisting part to prevent the trigger from rotating towards the percussion position; the first stopper is in the second position allowing the trigger to rotate between the initial position and the firing position. Accurate positioning of the trigger at the semi-closed position of the clamp is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a clamp applier handle and a clamp applier capable of positioning a semi-closed clamp. Background Art

[0002] In order to fully expose the surgical field during surgery, it is necessary to ligate the blood vessels around the target tissue to stop bleeding. Hemostasis technology has become one of the core basic surgical operation techniques. Surgical operations on any part of the human body almost without exception involve bleeding and hemostasis. Generally, a clip applier ligation clip is used to close the hemostasis.

[0003] The manual clip applier currently used in clinical practice includes a handle, a shaft assembly and a clamp. The handle includes a handle body and a trigger, and the trigger is rotatably mounted on the handle body; the shaft assembly extends distally from the handle and defines a longitudinal axis, and the clamp is mounted on the distal end of the shaft assembly, and the shaft assembly is connected to the trigger by transmission; the trigger rotates to drive the shaft assembly to work, and then the shaft assembly can drive the clamp to work, thereby realizing the operation of the clip applier to ligate the blood vessel.

[0004] Manual clip applicators generally include continuous-type manual clip applicators and single-type manual clip applicators. During the use of the continuous-type manual clip applicator, when the clip applicator enters the body from outside the body through the puncture device, it is necessary to first rotate the trigger to send the ligation clip into the clamp, and then rotate the trigger to drive the clamp to a semi-closed state, so that the clamp and the shaft assembly can smoothly pass through the puncture device into the body. During the use of the single-type manual clip applicator, first install the ligation clip in the clamp outside the body, and then rotate the trigger to drive the clamp to a semi-closed state, so that the clamp and the shaft assembly can smoothly pass through the puncture device.

[0005] Whether it is the process of using a continuous-type manual clip applicator or a single-type manual clip applicator, it is necessary to manually observe the clamp state to guide the manual rotation of the trigger stroke to the clamp semi-closed position, so that the clamp is in a semi-closed state, and it is necessary to manually maintain the trigger stroke near the clamp semi-closed position for a period of time so that the clamp in the semi-closed state can smoothly pass through the puncture device into the body. It is time-consuming and laborious, and it is easy to make mistakes in the manual rotation of the trigger stroke, resulting in the occurrence of misfiring of the ligation clip.

[0006] For this reason, there is an urgent need for an improved clip applier handle and clip applier with a positionable half-closed clamp. Utility Model Content

[0007] 1. Technical issues to be resolved

[0008] In view of the problems existing in the above technology, the present invention solves them at least to a certain extent. To this end, the first purpose of the present invention is to provide a clamp applier handle capable of positioning the clamp half-closed, so as to achieve accurate positioning of the trigger in the clamp half-closed position.

[0009] The second objective of the present invention is to provide a clip applier having the clip applier handle.

[0010] (II) Technical solution

[0011] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0012] In the first aspect, the utility model provides a clamp applier handle with a positionable clamp semi-closed, comprising a handle body and a trigger rotatably mounted on the handle body, the trigger being able to rotate between an initial position, a clamp semi-closed position and a firing position arranged in sequence; a first stop member being able to move between a first position and a second position is provided on the handle body, and a resisting portion is provided on the trigger; the first stop member is in the first position, allowing the trigger to rotate between the initial position and the clamp semi-closed position, and when the trigger is in the clamp semi-closed position, the first stop member cooperates with the resisting portion to prevent the trigger from rotating toward the firing position; the first stop member is in the second position, allowing the trigger to rotate between the initial position and the firing position.

[0013] Optionally, the first stop member is a pressing member, and the position of the first stop member is changed by pressing the first stop member; or, the first stop member is a toggle member, and the position of the first stop member is changed by toggle the first stop member.

[0014] Optionally, the first stop member is a pressing member, and the first end of the trigger is rotatably installed in the handle body. The handle body has a first shell portion, which corresponds to the position of the first end of the trigger and is located on the distal side of the first end of the trigger; the first stop member is arranged on the first shell portion, and the first stop member is slidingly connected to the handle body along the distal direction; the blocking portion is arranged on the distal side of the first end of the trigger.

[0015] Optionally, the first stop member is a toggle member, the first end of the trigger is rotatably installed in the handle body, the handle body has a second shell portion, the second shell portion corresponds to the position of the first end of the trigger and is located on the left side of the first end of the trigger; the first stop member is arranged on the second shell portion, and the first stop member is slidingly connected to the handle body along the distal direction; the blocking portion is arranged on the distal side or left side of the first end of the trigger.

[0016] Optionally, the first stop member is slidably connected to the handle body via a first limiting structure, and the first limiting structure limits the first stop member to slide between a first position and a second position.

[0017] Optionally, the trigger can rotate between an initial position, a clamp delivery position, a clamp semi-closed position and a firing position arranged in sequence; a second stopper capable of elastically contracting relative to the original position is provided on the trigger, a third stopper capable of elastically rotating relative to the original position is provided on the handle body, and the second stopper has a stop portion for contacting and cooperating with the third stopper;

[0018] The trigger is in the initial position, the second stopper and the third stopper are both in the original position, and the stopper is located at the first end side of the third stopper; the trigger is in the firing position, the second stopper and the third stopper are both in the original position, and the stopper is located at the second end side of the third stopper; the trigger rotates from the initial position to the firing position, the stopper contacts the first surface of the third stopper, and the stopper is elastically contracted and moves along the first surface under the pressure of the third stopper; the trigger rotates from the firing position to the initial position, the stopper contacts the second surface of the third stopper, and the second stopper in the original position pulls the third stopper to elastically rotate and move along the second surface;

[0019] A stop tooth is provided on the first surface, and when the trigger is in the clip delivery position, the stop portion cooperates with the stop tooth to prevent the trigger from moving to the initial position.

[0020] Optionally, a stop tooth segment and a smooth segment are arranged in sequence from the first end of the third stop member to the second end of the third stop member on the first surface, and the stop tooth segment has continuously arranged stop teeth; when the trigger rotates from the initial position to the clamping position, the stop portion cooperates with the stop teeth of the stop tooth segment, and when the trigger rotates from the clamping position to the firing position, the stop portion cooperates with the smooth segment.

[0021] Optionally, when the trigger is in the clip delivery position, the second stop member extends into the clip delivery stop tooth groove of the stop tooth segment and cooperates with the clip delivery stop tooth; in the stop tooth segment, the depth of the clip delivery stop tooth groove is the deepest.

[0022] Optionally, a fourth stop member capable of moving between a third position and a fourth position is also provided on the handle body, and a blocking portion is provided on the trigger; the fourth stop member is in the third position, allowing the trigger to rotate between the initial position and the clamp delivery position, and when the trigger is in the clamp delivery position, the fourth stop member cooperates with the blocking portion to prevent the trigger from rotating toward the firing position; the fourth stop member is in the fourth position, allowing the trigger to rotate between the initial position and the firing position.

[0023] In a second aspect, the utility model provides a clip applier having a clip applier handle with a positionable clamp half-closed as described above.

[0024] (III) Beneficial effects

[0025] The beneficial effects of the utility model are:

[0026] The clamp applier handle provided by the utility model can realize accurate positioning of the trigger in the semi-closed position of the clamp through the cooperation of the first stop member and the resisting portion, and is conducive to stably maintaining the trigger in the semi-closed position of the clamp, effectively reminding the user that the clamp is in a semi-closed state at this time, and there is no need to manually rotate the trigger stroke to the semi-closed position of the clamp according to the clamp state observed by human visual observation, thereby reducing the user's operational requirements for the trigger stroke, which is conducive to improving the user's operational stability of the clamp applier and improving surgical efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The utility model is described with the help of the following drawings:

[0028] Figure 1 is a cross-sectional schematic diagram of a clip applier according to Embodiment 1 of the present invention, wherein the trigger is in an initial position and the first stop member is in a first position;

[0029] Figure 2 for Figure 1 A magnified schematic diagram of area A in the middle;

[0030] Figure 3 is a cross-sectional schematic diagram of a clip applier according to Embodiment 1 of the present invention, wherein the trigger is in a semi-closed position of the clamp and the first stop member is in a first position;

[0031] Figure 4 for Figure 3 A magnified schematic diagram of area B in the middle;

[0032] Figure 5 is a cross-sectional schematic diagram of a clip applier according to Embodiment 1 of the present invention, wherein the trigger is in a clip delivery position and the first stop member is in a second position;

[0033] Figure 6 for Figure 5 Enlarged schematic diagram of area C in the middle;

[0034] Figure 7 is a cross-sectional schematic diagram of a clip applier according to Embodiment 1 of the present invention, wherein the trigger is in a firing position and the first stop member is in a second position;

[0035] Figure 8 for Figure 7 Enlarged schematic diagram of area D in the middle;

[0036] Fig. 9 is a cross-sectional schematic diagram of a clip applier according to Embodiment 1 of the present invention, wherein the trigger is in a position during the rotation process from the firing position to the initial position;

[0037] Fig.10 for Fig. 9 Enlarged schematic diagram of area E in the middle;

[0038] Fig.11 It is a schematic diagram of the three-dimensional structure of the second stop member according to Embodiment 1 of the utility model;

[0039] Fig.12 It is a schematic diagram of the three-dimensional structure of the third stop member according to Example 1 of the utility model.

[0040] [Description of Reference Numerals]

[0041] 10: first stopper; 11: handle; 12: third stopper; 13: third elastic member; 14: second limiting structure; 15: base plate; 16: adapter; 17: first shell; 18: first elastic member; 19: first limiting structure;

[0042] 122: stop tooth segment; 123: smooth segment; 124: clamp feeding stop tooth; 125: clamp feeding stop tooth groove;

[0043] 2: Trigger;

[0044] 20: blocking portion; 21: second stop member; 22: second elastic member; 23: fourth elastic member;

[0045] 211: stopper; 213: mounting rod; 214: protruding portion;

[0046] 3: Transmission components;

[0047] 4: shaft assembly;

[0048] 5: Clamp;

[0049] 6: Ligation clip;

[0050] 7: Actuating lever. DETAILED DESCRIPTION

[0051] It should be noted that the “near” mentioned in this article refers to the side close to the operator, and the “far” refers to the side close to the patient. The directional terms such as “upper”, “lower”, “front”, “back”, “left” and “right” mentioned in this article are used in conjunction with the patient’s position. Figure 1 The orientation is used as a reference, and the direction from front to back is also the direction from far to near.

[0052] Example 1

[0053] like Figures 1 to 8 As shown, this embodiment provides a continuous-type manual clip applier, which includes a handle, a transmission assembly 3, an axis assembly 4 and a clamp 5.

[0054] The handle includes a handle body and a trigger 2, wherein the handle body has a grip portion 11 for holding. The first end of the trigger 2 is elastically rotatably mounted on the handle body, and the second end of the trigger 2 and the grip portion 11 are separated from each other to form a V-shaped opening. When the trigger 2 is squeezed, elastic rotation occurs, and the second end of the trigger 2 approaches the grip portion 11 to reduce the V-shaped opening. When the trigger 2 is released, elastic recovery occurs, and the second end of the trigger 2 moves away from the grip portion 11 to expand the V-shaped opening.

[0055] The transmission assembly 3 is at least partially arranged in the handle body, the shaft assembly 4 extends distally from the handle and defines a longitudinal axis, a plurality of ligation clips 6 are arranged in the shaft assembly 4, the clamp 5 is installed at the distal end of the shaft assembly 4, the transmission assembly 3 is transmission-connected to the shaft assembly 4, and the trigger 2 is transmission-connected to the transmission assembly 3. The trigger 2 can rotate among the initial position, the clamp delivery position, the semi-closed position of the clamp 5 and the firing position which are arranged in sequence. When the trigger 2 is squeezed, it rotates from the initial position to the clamp delivery position, and the transmission assembly 3 moves distally along the longitudinal axis in response to the actuation of the trigger 2, driving the shaft assembly 4 to complete the clamp delivery action, so that the ligation clamp 6 enters the clamp 5; when the trigger 2 is squeezed, it rotates from the clamp delivery position to the semi-closed position of the clamp 5, and the transmission assembly 3 continues to move distally along the longitudinal axis in response to the actuation of the trigger 2, driving the shaft assembly 4 to perform half of the firing action, so that the clamp 5 is semi-closed; when the trigger 2 is squeezed, it rotates from the semi-closed position of the clamp 5 to the firing position, and the transmission assembly 3 continues to move distally along the longitudinal axis in response to the actuation of the trigger 2, driving the shaft assembly 4 to complete the firing action, so that the clamp 5 is completely closed; when the trigger 2 is released, the trigger 2 automatically returns to the initial position from the firing position, and the transmission assembly 3 and the shaft assembly 4 also automatically return to their initial state.

[0056] A first stop member 10 capable of moving between a first position and a second position is provided on the handle body, and a first end of the trigger 2 has a stop portion 20; the first stop member 10 is in the first position, allowing the trigger 2 to rotate between the initial position and the semi-closed position of the clamp 5, and when the trigger 2 is in the semi-closed position of the clamp 5, the first stop member 10 cooperates with the stop portion 20 to prevent the trigger 2 from rotating toward the firing position; the first stop member 10 is in the second position, allowing the trigger 2 to rotate between the initial position and the firing position.

[0057] With such arrangement, through the cooperation of the first stop member 10 and the resisting portion 20, the trigger 2 can be accurately positioned in the semi-closed position of the clamp 5, and is conducive to stably maintaining the trigger 2 in the semi-closed position of the clamp 5, effectively reminding the user that the clamp 5 is in a semi-closed state at this time, and there is no need to manually rotate the trigger 2 to the semi-closed position of the clamp 5 according to the state of the clamp 5 observed by human visual observation, thereby reducing the user's operational requirements for the trigger 2 stroke, which is conducive to improving the user's operational stability of the clamp applier and improving the surgical efficiency.

[0058] Specifically, the working process of the clip applier provided in this embodiment is as follows: initially, while holding the trigger 2 in the initial position, move the first stop member 10 to the first position, such as Figure 1 and Figure 2 Then, the gripping trigger 2 is rotated from the initial position to the semi-closed position of the clamp 5, and the first stop member 10 cooperates with the resisting portion 20 in the semi-closed position of the clamp 5, as shown Figure 3 and Figure 4 As shown, the trigger 2 is prevented from rotating toward the firing position, so that the trigger 2 is accurately positioned in the semi-closed position of the clamp 5, and it is beneficial for the trigger 2 to be stably maintained in the semi-closed position of the clamp 5, saving time and effort, reducing the user's control requirements on the stroke of the trigger 2, and improving the user's operational stability of the clip applier; then, the clip applier is introduced from the outside of the body into the body through the puncture device, the first stop member 10 is moved to the second position, and the trigger 2 is slightly loosened to rotate the trigger 2 from the semi-closed position of the clamp 5 to the clip delivery position, as shown in FIG. Figure 5 and Figure 6 As shown, at this time, the clamp 5 is in a fully open state, which is convenient for the user to find the blood vessel to be clamped; then, the gripping trigger 2 is rotated from the clamp delivery position to the firing position, as shown in FIG. Figure 7 and Figure 8 As shown, the clamp 5 is completely closed; finally, the trigger 2 is released, and the trigger 2 automatically returns to the initial position from the firing position.

[0059] Specifically, Figure 2 As shown, in this embodiment, the first end of the trigger 2 is rotatably mounted inside the handle body, and the first stop member 10 has a trigger end extending outside the handle body and a stop end extending into the handle body for cooperating with the blocking portion 20, and the trigger end and the stop end are arranged in linkage. In this way, the structure is compact, and the user can act on the trigger end to change the stop end to the first position or the second position.

[0060] Preferably, in this embodiment, the first stop member 10 is a pressing member, that is, the position (first position or second position) of the first stop member 10 is changed by pressing the first stop member 10 .

[0061] Further preferably, the handle body has a first shell 17, which corresponds to the first end of the trigger 2 and is located at the far side of the first end of the trigger 2; the first stopper 10 is arranged through the first shell 17, and the first stopper 10 is slidably connected with the handle body along the far-near direction. In this way, when the first stopper 10 is pressed, the first stopper 10 slides along the far-near direction, which is convenient for the user to press.

[0062] Preferably, in this embodiment, the first stopper 10 is installed on the handle body through the first elastic member 18, and the first stopper 10 moves from the second position to the first position, and the elastic deformation of the first elastic member 18 gradually increases. In this way, the first stopper 10 can be elastically restored to the second position with the help of the first elastic member 18, so that when the user needs the first stopper 10 to be in the first position, the first stopper 10 can be pressed, and when the first stopper 10 is needed to be in the second position, the first stopper 10 can be released, which makes the user operation easier. Optionally, the first stopper 10 is installed on the handle body through the first elastic member 18, and the first stopper 10 moves from the first position to the second position, and the elastic deformation gradually increases; in this way, similar effects as described above can be achieved.

[0063] Preferably, the first stop member 10 is slidably connected to the handle body through a first limiting structure 19, and the first limiting structure 19 limits the first stop member 10 to slide between the first position and the second position. In this way, the accuracy and convenience of the user moving the first stop member 10 to the first position and the second position are improved. Furthermore, in this embodiment, the first limiting structure 19 includes a limiting hole opened on the first stop member 10 and a limiting column arranged on the handle body, and the limiting column is inserted into the limiting hole; when the first stop member 10 is in the first position, the limiting column abuts against the distal wall of the limiting hole, and when the first stop member 10 is in the second position, the limiting column abuts against the proximal wall of the limiting hole.

[0064] Specifically, in the present embodiment, the first stop member 10 includes a pressing portion and a columnar portion connected in sequence, the columnar portion is arranged through the first shell portion 17, the first end of the columnar portion extends out of the handle body and is connected to the pressing portion, the second end of the columnar portion extends into the handle body and is provided with a stop end; the limiting hole is provided on the columnar portion, the first elastic member 18 is a spring sleeved on the columnar portion, the first end of the first elastic member 18 abuts against the pressing portion, and the second end of the first elastic member 18 abuts against the handle body. In this way, the structure is compact and stable. Further, in the present embodiment, the stop end is a stop plate arranged at the second end of the columnar portion. In this way, the stop end is convenient to cooperate with the abutting portion 20.

[0065] Preferably, the resisting portion 20 is disposed on the distal side of the first end of the trigger 2. The resisting portion 20 disposed in this way is convenient for cooperating with the first stopper 10 disposed on the first shell 17. Further, in the present embodiment, the resisting portion 20 is in a pit shape, and when the first stopper 10 is in the first position and the trigger 2 is in the semi-closed position of the clamp 5, the first stopper 10 abuts against the upper side wall of the resisting portion 20 to prevent the trigger 2 from rotating toward the firing position. Optionally, the resisting portion 20 is disposed on the left side or right side of the first end of the trigger 2, which can also achieve the cooperation between the resisting portion 20 and the first stopper 10 disposed on the first shell 17.

[0066] Preferably, the trigger 2 is provided with a second stopper 21 capable of elastically contracting relative to the original position, and the handle body is provided with a third stopper 12 capable of elastically rotating relative to the original position. The trigger 2 is in the initial position, the second stopper 21 and the third stopper 12 are both in the original position, and the stop portion 211 of the second stopper 21 is located at the first end side of the third stopper 12 (that is, the second stopper 21 is separated from the third stopper 12, such as Figure 1 and Figure 2 The trigger 2 rotates from the initial position to the clip delivery position, and the stop portion 211 of the second stop member 21 contacts the first surface of the third stop member 12. The stop portion 211 of the second stop member 21 is elastically contracted by the third stop member 12 in the original position and moves along the first surface of the third stop member 12 from the first end of the third stop member 12 to the second end of the third stop member 12 (as shown in FIG. Figure 5 and Figure 6 As shown); the trigger 2 rotates from the clip feeding position to the firing position, and the elastically contracted second stop member 21 (relative to the original position) continues to move along the first surface of the third stop member 12 toward the second end of the third stop member 12, until the stop portion 211 of the second stop member 21 moves past the second end of the third stop member 12, so that the second stop member 21 is separated from the third stop member 12 (at this time, the stop portion 211 of the second stop member 21 is located at the second end side of the third stop member 12, as shown in FIG. Figure 7 and Figure 8 The trigger 2 is in the firing position, the stop portion 211 of the second stop member 21 is located at the second end side of the third stop member 12, and the second stop member 21 and the third stop member 12 are both in the original position (as shown); Figure 7 and Figure 8 The trigger 2 rotates from the firing position to the initial position, the stop portion 211 of the second stop member 21 contacts the second surface of the third stop member 12, and the second stop member 21 in the original position pulls the third stop member 12 to elastically rotate and move along the second surface of the third stop member 12 from the second end of the third stop member 12 to the first end of the third stop member 12 (as shown in FIG. Fig. 9 and Fig.10 ), until the second stop member 21 moves past the first end of the third stop member 12, so that the second stop member 21 is separated from the third stop member 12 (at this time, the stop portion 211 of the second stop member 21 is located at the first end side of the third stop member 12, as shown in FIG. Figure 1 and Figure 2 A stop tooth is provided on the first surface of the third stop member 12. When the trigger 2 is in the clip delivery position, the stop portion 211 of the second stop member 21 cooperates with the stop tooth. The stop tooth is a one-way stop tooth, which allows the second stop member 21 to move toward the second end of the third stop member 12 and prevents the second stop member 21 from moving toward the first end of the third stop member 12.

[0067] The first surface of the third stopping member 12 and the second surface of the third stopping member 12 are arranged opposite to each other.

[0068] The above-mentioned clamp applier, with the aid of the elastically contractible second stop member 21 and the elastically rotatable third stop member 12 provided with stop teeth, firstly, when the trigger 2 is in the clamp delivery position, the stop portion 211 of the second stop member 21 can cooperate with the stop teeth, and the stop teeth prevent the trigger 2 from retreating, so that the trigger 2 can be positioned in the clamp delivery position and stably maintained for a period of time, without the need to manually maintain the trigger 2 in the clamp delivery position, which is convenient for the user to find the blood vessel to be clamped and reduces the requirements of the device on the user; secondly, in the process of the second stop member 21 responding to the rotation of the trigger 2 and cooperating with the third stop member 12, due to the elastic contraction of the second stop member 21 and the elastic rotation of the third stop member 12, the second stop member 21 and the third stop member 12 are less likely to undergo plastic deformation, thereby extending the service life of the second stop member 21 and the third stop member 12, thereby extending the service life of the clamp applier.

[0069] like Figure 2 As shown, the second stopper 21 is slidably connected to the trigger 2, and the second stopper 21 is connected to the trigger 2 through the second elastic member 22, supporting the second stopper 21 in the original position; when the trigger 2 rotates from the initial position to the firing position, the second stopper 21 is pressed by the third stopper 12, the second elastic member 22 is elastically deformed, and the second stopper 21 shrinks relative to the original position. In this way, during the cooperation between the second stopper 21 and the third stopper 12, the second stopper 21 will not be plastically deformed, thereby extending the service life of the second stopper 21. The second elastic member 22 can be a spring, a torsion spring, a rubber member, etc.

[0070] Of course, the second stopper 21 is slidably connected to the trigger 2, and the second stopper 21 is connected to the trigger 2 via the second elastic member 22, which is only a preferred manner. It is conceivable that the second stopper 21 itself is an elastically deformable member, which can also achieve a similar effect.

[0071] Preferably, in this embodiment, the trigger 2 has a first trigger portion and a second trigger portion respectively located on the upper and lower sides of the rotation axis of the trigger 2, and the second trigger portion is used for gripping and pressing; the second stopper 21 is arranged on the first trigger portion and extends in the distal direction, and the third stopper 12 is located on the proximal side of the second stopper 21. In this way, the structure is more compact. Optionally, the second stopper 21 is arranged on the second trigger portion. Optionally, the second stopper 21 is arranged on the first trigger portion and extends in the vertical direction, and the third stopper 12 is arranged above the second stopper 2121.

[0072] Furthermore, in this embodiment, the blocking portion 20 is provided on the first trigger portion.

[0073] Specifically, in this embodiment, when the trigger 2 is in the initial position, the second stopper 21 extends obliquely downward from far to near; when the trigger 2 is in the firing position, the second stopper 21 extends obliquely upward from far to near. In this way, the compactness of the structure is further improved.

[0074] Preferably, if Fig.11 As shown, in this embodiment, the second stop member 21 has a mounting rod 213 for mounting with the trigger 2 and a stop portion 211 for contacting and cooperating with the third stop member 12, the mounting rod 213 extends out of one end of the trigger 2 and is connected to the stop portion 211, and the stop portion 211 has a protrusion 214 protruding to the right from the mounting rod 213; the trigger 2 rotates from the initial position to the firing position, the mounting rod 213 is always located on the left side of the third stop member 12, the proximal side of the protrusion 214 contacts the first surface of the third stop member 12 and moves along the first surface of the third stop member 12 from the first end of the third stop member 12 to the second end of the third stop member 12, the trigger 2 rotates from the firing position to the initial position, the mounting rod 213 is always located on the left side of the third stop member 12, the distal side of the protrusion 214 contacts the second surface of the third stop member 12 and moves along the second surface of the third stop member 12 from the second end of the third stop member 12 to the first end of the third stop member 12. The second stop member 21 arranged in this way has a simple structure and is easy to cooperate with the third stop member 12 .

[0075] Further preferably, in this embodiment, the mounting rod 213 includes a first guide rod portion, a stopper portion, and a second guide rod portion coaxially arranged in sequence from far to near, the first trigger portion is provided with a first mounting slot, a second mounting slot, and a third mounting slot that are connected in sequence from far to near, and the second elastic member 22 is a spring; the first guide rod portion is accommodated in the first mounting slot, the stopper portion is accommodated in the second mounting slot and the stopper portion abuts against the proximal wall of the second mounting slot, the second guide rod portion is accommodated in the third mounting slot, the spring is sleeved on the first guide rod portion, the first end of the spring is connected to the stopper portion, and the second end of the spring is connected to the distal wall of the second mounting slot; the end of the second guide rod portion extending out of the trigger 2 is connected to the stopper portion 211. The second stopper 21 of such a structure is stably installed on the trigger 2 and works stably.

[0076] like Figure 2 and Fig.12As shown, the third stopper 12 can be rotatably mounted on the handle body in a limited manner, and the third stopper 12 is connected to the handle body through the third elastic member 13, so that the third stopper 12 is supported in the original position; the trigger 2 rotates from the firing position to the initial position, the second stopper 21 pulls the third stopper 12, the third elastic member 13 is elastically deformed, and the third stopper 12 rotates relative to the original position. In this way, during the cooperation process between the second stopper 21 and the third stopper 12, the third stopper 12 will not be plastically deformed, thereby extending the service life of the third stopper 12. The third elastic member 13 can be a spring, a torsion spring, a rubber member, etc.

[0077] Furthermore, in this embodiment, a second limiting structure 14 is provided on the handle body; when the trigger 2 rotates from the initial position to the firing position, the second stop member 21 presses against the third stop member 12, and the second limiting structure 14 prevents the third stop member 12 from rotating. In this way, the second limiting structure 14 ensures that the third stop member 12 is stably located in the original position and does not rotate during the process of the trigger 2 rotating from the initial position to the firing position.

[0078] Preferably, a stop tooth segment 122 and a smooth segment 123 are arranged on the first surface of the third stop member 12 in sequence from the first end of the third stop member 12 to the second end of the third stop member 12, and the stop tooth segment 122 has stop teeth arranged continuously along the direction from the first end of the third stop member 12 to the second end of the third stop member 12; when the trigger 2 rotates from the initial position to the clamping position, the second stop member 21 cooperates with the stop teeth of the stop tooth segment 122, and when the trigger 2 rotates from the clamping position to the firing position, the second stop member 21 cooperates with the smooth segment 123. In this way, during the process of the trigger 2 rotating from the initial position to the clamp delivery position, the second stop member 21 cooperates with the stop tooth segment 122, and the stop tooth segment 122 automatically prevents the trigger 2 from retreating, thereby avoiding disrupting the order of the ligation clips 6 in the shaft assembly 4, and enabling the trigger 2 to automatically maintain a stable state in the clamp delivery position for a period of time, making it convenient for the user to find the blood vessel to be clamped; during the process of the trigger 2 rotating from the clamp delivery position to the firing position, the second stop member 21 cooperates with the smooth segment 123 to reduce resistance, making it easier to fire the trigger 2, and facilitating the retreat of the trigger 2 from the semi-closed position of the clamp 5 to the clamp delivery position.

[0079] Further, in this embodiment, the trigger 2 is in the clip delivery position, and the second stop member 21 cooperates with the clip delivery stop tooth 124 of the stop tooth segment 122, and the clip delivery stop tooth 124 is the stop tooth of the stop tooth segment 122 closest to the smooth segment 123. Specifically, in this embodiment, the stop tooth segment 122 and the smooth segment 123 are connected.

[0080] Further preferably, among the stop teeth of the stop tooth segment 122, the tooth top height of the clip delivery stop tooth 124 is the largest. In this way, the depth of the clip delivery stop tooth groove 125 corresponding to the clip delivery stop tooth 124 is the deepest compared to the stop tooth grooves corresponding to other stop teeth; because the second stop member 21 extends into the stop tooth groove and is blocked by the stop tooth corresponding to the stop tooth groove, the second stop member 21 is matched with the stop tooth, so when the second stop member 21 cooperates with the clip delivery stop tooth 124, the second stop member 21 extends into the clip delivery stop tooth groove 125 to a deeper depth, and compared with the cooperation between the second stop member 21 and other stop teeth, a louder impact sound can be generated to remind the user that the clip delivery is in place.

[0081] Specifically, in this embodiment, the second surface of the third stopper 12 is a smooth surface.

[0082] Preferably, the third stopper 12 is in an arc shape with the notch facing the second stopper 21. The third stopper 12 of such a shape is adapted to the movement path of the second stopper 21 rotating with the trigger 2, which is conducive to the stable cooperation between the second stopper 21 and the third stopper 12.

[0083] Preferably, the second end of the third stopper 12 is closer to the rotation center of the third stopper 12 than the first end of the third stopper 12. The rotation center of the third stopper 12 can be on the third stopper 12 or outside the third stopper 12. This is conducive to the realization of the matching process between the second stopper 21 and the third stopper 12.

[0084] Further preferably, the third stopper 12 is rotatably mounted on the handle body through the base plate 15, the third stopper 12 is fixed to the left side of the base plate 15, the base plate 15 extends in the direction from the first end of the third stopper 12 to the second end of the third stopper 12, and the first end of the base plate 15 extends out of the second end of the third stopper 12, and the first end of the base plate 15 is rotatably connected to the handle body. Such a structure is provided, which does not interfere with the matching process between the second stopper 21 and the third stopper 12, and facilitates the rotatable installation of the third stopper 12 on the handle body.

[0085] Further preferably, the second end of the substrate 15 extends out of the first end of the third stopper 12, and the second end of the substrate 15 cooperates with the second limiting structure 14. Specifically, when the trigger 2 rotates from the initial position to the firing position, the second limiting member 21 presses against the third stopping member 12, and the second limiting structure 14 cooperates with the second end of the substrate 15 to prevent the third stopping member 12 from rotating. Further, in this embodiment, a limiting hole is provided at the second end of the substrate 15, and the second limiting structure 14 is a limiting column, which is inserted into the limiting hole. Optionally, a limiting column is provided at the second end of the substrate 15, and a limiting groove is provided on the handle body, and the limiting column is inserted into the limiting groove.

[0086] Further, the base plate 15 is connected to the handle body through the third elastic member 13. Specifically, in this embodiment, the third elastic member 13 is a spring, and the second end of the base plate 15 is connected to the handle body through the spring. Optionally, the third elastic member 13 is a torsion spring, and the first end of the base plate 15 is rotatably connected to the handle body through the torsion spring. In this way, the elastic rotation connection between the third stop member 12 and the handle body is achieved.

[0087] like Figure 2 As shown, the handle body also has an adapter 16, the handle 11 and the adapter 16 are sequentially connected from bottom to top to form a "T" shape, the trigger 2 is rotatably mounted on the upper end of the handle 11, the transmission assembly 3 is located on the proximal side of the shaft assembly 4, the transmission assembly 3 is mounted on the adapter 16, and the third stopper 12 is mounted on the handle 11. In this way, the installation space of each component (including the transmission assembly 3, the trigger 2 and the third stopper 12) on the handle body is more reasonably distributed, making the size of the handle smaller.

[0088] The trigger 2 is connected to the handle body through the fourth elastic member 23. When the trigger 2 is squeezed and rotated, the fourth elastic member 23 is elastically deformed, and the second end of the trigger 2 is close to the handle portion 11 to reduce the V-shaped opening. When the trigger 2 is released, the fourth elastic member 23 elastically recovers, and the second end of the trigger 2 is away from the handle portion 11 to increase the V-shaped opening. The fourth elastic member 23 can be a spring, a compression spring, a rubber member, etc. Further, in this embodiment, the fourth elastic member 23 is accommodated in the handle portion 11, and the first trigger portion is connected to the handle body through the fourth elastic member 23.

[0089] like Figure 2 As shown, the clip applier further includes an actuating rod 7, a first end of which is fixedly connected to the trigger 2, and a second end of which is slidably connected to the transmission assembly 3; when the trigger 2 rotates, the transmission assembly 3 is driven to move along the longitudinal axis through the actuating rod 7. Thus, the structure is simple.

[0090] Specifically, in this embodiment, the trigger 2 is in the initial position, and the first end of the actuating rod 7 to the second end of the actuating rod 7 extend from far to near and from bottom to top.

[0091] Specifically, in this embodiment, the second end of the actuating rod 7 is provided with a slide rail extending along the length direction of the actuating rod 7, and the transmission assembly 3 has a slide column, which cooperates with the slide rail. Further, the slide rail is in the shape of an elongated hole.

[0092] Example 2

[0093] The present embodiment provides a method for using the manual clip applier described in Embodiment 1, and the method includes the following steps: while holding the trigger in the initial position, move the first stop member to the first position; then, squeeze the trigger and rotate it from the initial position to the semi-closed position of the clamp, and pass the clip applier from outside the body into the body through the puncture device; then, move the first stop member to the second position, release the trigger to put the clamp in a fully open state; thereafter, squeeze the trigger and rotate it to the firing position to put the clamp in a fully clamped state; finally, release the trigger.

[0094] During the use of the manual clip applier, the user can control the trigger stroke simply and labor-savingly, which is beneficial to improving the user's operating stability of the clip applier.

[0095] Furthermore, when the first stopper is a resiliently slidable pressing member as described in Example 1, the method for using the clip applier includes the following steps: while holding the trigger in the initial position, press the first stopper in the first position without loosening; then, squeeze the trigger and rotate it from the initial position to the semi-closed position of the clamp, and insert the clip applier from the outside of the body into the body through the puncture device; then, release the first stopper (at this time, the first stopper will elastically return to the second position), and release the trigger to put the clamp in a fully open state; then, squeeze the trigger and rotate it to the firing position to put the clamp in a fully clamped state; finally, release the trigger. In this way, the user's control of the trigger stroke is further improved.

[0096] Furthermore, when the trigger is rotated on the handle body by the cooperation of the second stopper and the third stopper as described in Example 1, the method for using the clip applier includes the following steps: while holding the trigger in the initial position, press the first stopper in the first position without loosening; then, squeeze the trigger and rotate it from the initial position to the semi-closed position of the clamp, and insert the clip applier from the outside of the body into the body through the puncture device; then, release the first stopper (at this time, the first stopper will elastically return to the second position), and release the trigger (at this time, the second stopper will automatically retreat to cooperate with the clip delivery stopper tooth, so that the clamp is in a fully open state); then, squeeze the trigger and rotate it to the firing position so that the clamp is in a fully clamped state; finally, release the trigger. In this way, the user's control of the trigger stroke is further improved.

[0097] Example 3

[0098] The main difference between this embodiment and embodiment 1 is that:

[0099] The handle body has a second shell portion, which corresponds to the first end of the trigger and is located on the left side of the first end of the trigger; the first stopper is arranged through the second shell portion, and the first stopper is slidably connected to the handle body along the left and right directions. The first stopper arranged in this way is also convenient for the user to press to cooperate with the blocking portion.

[0100] Correspondingly, the blocking portion is arranged on the far side or the left side of the first end of the trigger. The blocking portion arranged in this way can cooperate with the first stop member arranged on the second shell.

[0101] The rest of the contents are the same as those in Example 1 and will not be repeated here.

[0102] Example 4

[0103] The main difference between this embodiment and embodiment 1 is that:

[0104] The first stop member is a toggle member, that is, the position of the first stop member is changed by toggling the first stop member.

[0105] Preferably, the handle body has a second shell portion, the second shell portion corresponds to the position of the first end of the trigger and is located on the left side of the first end of the trigger; the first stopper is arranged through the second shell portion, and the first stopper is slidably connected to the handle body along the distal direction. The first stopper arranged in this way can be moved in the distal direction to change the position of the first stopper (i.e., the first position and the second position).

[0106] Correspondingly, the blocking portion can be arranged on the distal side of the first end of the trigger, or on the left side of the first end of the trigger. The blocking portion arranged in this way can cooperate with the first stop member arranged on the second shell.

[0107] The rest of the contents are the same as those in Example 1 and will not be repeated here.

[0108] Example 5

[0109] The main difference between this embodiment and embodiment 1 is that:

[0110] A fourth stop member capable of moving between a third position and a fourth position is also provided on the handle body, and the first end of the trigger has a blocking portion; the fourth stop member is in the third position, allowing the trigger to rotate between the initial position and the clamping position, and when the trigger is in the clamping position, the fourth stop member cooperates with the blocking portion to prevent the trigger from rotating toward the firing position; the fourth stop member is in the fourth position, allowing the trigger to rotate between the initial position and the firing position.

[0111] With such a configuration, through the cooperation of the fourth stop member and the blocking portion, the trigger can be accurately positioned in the clamp delivery position, and the trigger can be stably maintained in the clamp delivery position, effectively reminding the user to deliver the clip in place, reducing the user's control requirements for the trigger stroke, which is beneficial to improving the user's operational stability of the clip applier and improving surgical efficiency.

[0112] Specifically, the working process of the clip applier provided in this embodiment is as follows: the clip applier clamps the blood vessel to be clamped in the body, initially, while holding the trigger in the initial position, the fourth stop piece is moved to the third position; then, the trigger is squeezed and rotated from the initial position to the clamp delivery position, and at the clamp delivery position, the fourth stop piece cooperates with the blocking portion to prevent the trigger from rotating to the firing position, thereby realizing accurate positioning of the trigger at the clamp delivery position, and the user can sense that the clamp is in place, and it is beneficial for the trigger to remain stably in the clamp delivery position, making it convenient for the user to find the blood vessel to be clamped and place the blood vessel to be clamped in the clamp, saving time and effort, reducing the user's control requirements on the trigger stroke, and improving the user's operational stability of the clip applier, thereby improving surgical efficiency; then, the fourth stop piece is moved to the fourth position, and the trigger is squeezed and rotated from the clamp delivery position to the firing position; finally, the trigger is released, and the trigger automatically returns to the initial position from the firing position.

[0113] The rest of the contents are the same as those in Example 1 and will not be repeated here.

[0114] Example 6

[0115] The main difference between this embodiment and embodiment 1 is that:

[0116] The present embodiment provides a single-fire manual clip applier, which includes a handle, a shaft assembly and a clamp.

[0117] The handle includes a handle body and a trigger, wherein the handle body has a grip portion for holding. The first end of the trigger is elastically rotatably mounted on the handle body, and the second end of the trigger and the grip portion are separated from each other to form a V-shaped opening. When the trigger is squeezed, elastic rotation occurs, and the second end of the trigger approaches the grip portion to reduce the V-shaped opening. When the trigger is released, elastic recovery occurs, and the second end of the trigger moves away from the grip portion to increase the V-shaped opening.

[0118] The shaft assembly extends distally from the handle and defines a longitudinal axis, the clamp is installed at the distal end of the shaft assembly, and the shaft assembly is connected to the trigger. The trigger can rotate between the initial position, the clamp semi-closed position and the firing position arranged in sequence. After the ligation clamp is installed in the clamp, the gripping trigger is rotated from the initial position to the clamp semi-closed position, and the shaft assembly moves distally along the longitudinal axis in response to the actuation of the trigger, driving the clamp semi-closed; the gripping trigger is rotated from the clamp semi-closed position to the firing position, and the shaft assembly continues to move distally along the longitudinal axis in response to the actuation of the trigger, driving the clamp completely closed; when the trigger is released, the trigger automatically returns to the initial position from the firing position, and the shaft assembly also automatically returns to the initial state.

[0119] A first stop member capable of moving between a first position and a second position is provided on the handle body, and a first end of the trigger has a stop portion; the first stop member is in the first position, allowing the trigger to rotate between an initial position and a semi-closed position of the clamp, and when the trigger is in the semi-closed position of the clamp, the first stop member cooperates with the stop portion to prevent the trigger from rotating toward the firing position; the first stop member is in the second position, allowing the trigger to rotate between the initial position and the firing position.

[0120] With such a configuration, through the cooperation of the first stop member and the resisting portion, the trigger can be accurately positioned in the semi-closed position of the clamp, and the trigger can be stably maintained in the semi-closed position of the clamp, effectively reminding the user that the clamp is in a semi-closed state at this time. There is no need to manually rotate the trigger stroke to the semi-closed position of the clamp based on the clamp state observed by human visual observation, which reduces the user's operational requirements for the trigger stroke, is conducive to improving the user's operational stability of the clamp applier, and improves surgical efficiency.

[0121] Specifically, the working process of the clip applier provided in the present embodiment is as follows: initially, the ligation clip is installed in the clamp; then, while holding the trigger in the initial position, the first stop piece is moved to the first position; then, the trigger is squeezed and rotated from the initial position to the semi-closed position of the clamp, and in the semi-closed position of the clamp, the first stop piece cooperates with the resisting part to prevent the trigger from rotating toward the firing position, thereby realizing accurate positioning of the trigger in the semi-closed position of the clamp, and facilitating the trigger to be stably maintained in the semi-closed position of the clamp, saving time and effort, reducing the user's control requirements for the trigger stroke, and improving the user's operational stability of the clip applier; thereafter, the clip applier is introduced into the body from outside the body through the puncture device, the first stop piece is moved to the second position, and the trigger is released to rotate the trigger from the semi-closed position of the clamp to the initial position, at which time the clamp is in a fully open state, which is convenient for the user to find the blood vessel to be clamped; then, the trigger is squeezed and rotated from the initial position to the firing position to realize complete clamping of the clamp; finally, the trigger is released, and the trigger automatically returns to the initial position from the firing position.

[0122] The rest of the contents are the same as those in Example 1 and will not be repeated here.

[0123] Example 7

[0124] The present embodiment provides a method for using the manual clip applier described in Example 6, and the method includes the following steps: installing the ligation clip in the clamp, holding the trigger in the initial position, and moving the first stop member to the first position; then, squeezing the trigger and rotating it from the initial position to the semi-closed position of the clamp, and inserting the clip applier from the outside of the body into the body through the puncture device; then, moving the first stop member to the second position, releasing the trigger to put the clamp in a fully open state; thereafter, squeezing the trigger and rotating it to the firing position to put the clamp in a fully clamped state; finally, releasing the trigger.

[0125] During the use of the manual clip applier, the user can control the trigger stroke simply and labor-savingly, which is beneficial to improving the user's operating stability of the clip applier.

[0126] Furthermore, when the first stopper is a resiliently slidable pressing member as described in Example 6, the method for using the clip applier includes the following steps: installing the ligation clip in the clamp, holding the trigger in the initial position, and pressing the first stopper in the first position without loosening; then, holding and pressing the trigger to rotate from the initial position to the semi-closed position of the clamp, and inserting the clip applier from the outside of the body into the body through the puncture device; then, releasing the first stopper (at this time, the first stopper will elastically return to the second position), and releasing the trigger to put the clamp in a fully open state; then, holding and pressing the trigger to rotate to the firing position to put the clamp in a fully clamped state; finally, releasing the trigger. In this way, the user's control of the trigger stroke is further improved.

[0127] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0128] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0129] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0130] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0131] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A clip applier handle capable of positioning a semi-closed clamp, characterized in that: It comprises a handle body and a trigger (2) rotatably mounted on the handle body, wherein the trigger (2) can rotate between an initial position, a clamp semi-closed position and a firing position which are arranged in sequence; A first stop member (10) capable of moving between a first position and a second position is provided on the handle body, and a resisting portion (20) is provided on the trigger (2); when the first stop member (10) is in the first position, the trigger (2) is allowed to rotate between an initial position and a semi-closed position of the clamp, and when the trigger (2) is in the semi-closed position of the clamp, the first stop member (10) cooperates with the resisting portion (20) to prevent the trigger (2) from rotating toward the firing position; when the first stop member (10) is in the second position, the trigger (2) is allowed to rotate between the initial position and the firing position.

2. The semi-closed clip applier handle of the positionable clamp according to claim 1, characterized in that: The first stop member (10) is a pressing member, and the position of the first stop member (10) is changed by pressing the first stop member (10); or the first stop member (10) is a toggle member, and the position of the first stop member (10) is changed by toggle the first stop member (10).

3. The half-closed clip applier handle of the positionable clamp according to claim 2, characterized in that: The first stop member (10) is a pressing member, the first end of the trigger (2) is rotatably mounted in the handle body, the handle body has a first shell (17), the first shell (17) corresponds to the position of the first end of the trigger (2) and is located at the far side of the first end of the trigger (2); The first stopper (10) is arranged on the first shell (17) through and through, and the first stopper (10) is slidably connected to the handle body along the distal and proximal directions; the blocking portion (20) is arranged on the distal side of the first end of the trigger (2).

4. The half-closed clip applier handle of the positionable clamp according to claim 2, characterized in that: The first stop member (10) is a toggle member, the first end of the trigger (2) is rotatably mounted in the handle body, the handle body has a second shell portion, the second shell portion corresponds to the position of the first end of the trigger (2) and is located on the left side of the first end of the trigger (2); The first stopper (10) is arranged on the second shell part through and through, and the first stopper (10) is slidably connected with the handle body along the distal and proximal directions; the blocking portion (20) is arranged on the distal side or the left side of the first end of the trigger (2).

5. The semi-closed clip applier handle of the positionable clamp according to claim 1, characterized in that: The first stop member (10) is slidably connected to the handle body via a first limiting structure (19), and the first limiting structure (19) limits the first stop member (10) to slide between a first position and a second position.

6. The half-closed clip applier handle of the positionable clamp according to claim 1, characterized in that: The trigger (2) is rotatable among an initial position, a clamp delivery position, a clamp semi-closed position and a firing position arranged in sequence; The trigger (2) is provided with a second stopper (21) capable of elastically contracting relative to an original position, the handle body is provided with a third stopper (12) capable of elastically rotating relative to the original position, and the second stopper (21) has a stopper portion (211) for contacting and cooperating with the third stopper (12); The trigger (2) is in an initial position, the second stop member (21) and the third stop member (12) are both in the original position, and the stop portion (211) is located at the first end side of the third stop member (12); the trigger (2) is in a firing position, the second stop member (21) and the third stop member (12) are both in the original position, and the stop portion (211) is located at the second end side of the third stop member (12); the trigger (2) rotates from the initial position to the firing position, the stop portion (211) contacts the first surface of the third stop member (12), and the stop portion (211) is elastically contracted and moves along the first surface under the pressure of the third stop member (12); the trigger (2) rotates from the firing position to the initial position, the stop portion (211) contacts the second surface of the third stop member (12), and the second stop member (21) in the original position pulls the third stop member (12) to elastically rotate and move along the second surface; A stop tooth is provided on the first surface, and when the trigger (2) is in the clamping position, the stop portion (211) cooperates with the stop tooth to prevent the trigger (2) from moving to the initial position.

7. The half-closed clip applier handle of the positionable clamp according to claim 6, characterized in that: A stop tooth segment (122) and a smooth segment (123) are arranged on the first surface in sequence from the first end of the third stop member (12) to the second end of the third stop member (12), and the stop tooth segment (122) has stop teeth that are arranged continuously; The trigger (2) rotates from the initial position to the clamping position, the stop portion (211) cooperates with the stop teeth of the stop tooth segment (122), and the trigger (2) rotates from the clamping position to the firing position, the stop portion (211) cooperates with the smooth segment (123).

8. The half-closed clip applier handle of claim 7, wherein: When the trigger (2) is in the clip delivery position, the second stop member (21) extends into the clip delivery stop tooth groove (125) of the stop tooth segment (122) and cooperates with the clip delivery stop tooth (124); in the stop tooth segment (122), the clip delivery stop tooth groove (125) is the deepest.

9. The positionable half-closed clip applier handle of claim 1, wherein: The handle body is also provided with a fourth stop member capable of moving between a third position and a fourth position, and the trigger (2) has a blocking portion; when the fourth stop member is in the third position, the trigger (2) is allowed to rotate between an initial position and a clamping position, and when the trigger (2) is in the clamping position, the fourth stop member cooperates with the blocking portion to prevent the trigger (2) from rotating toward the firing position; when the fourth stop member is in the fourth position, the trigger (2) is allowed to rotate between the initial position and the firing position.

10. A clip applier, characterized in that: A clip applier handle having a half-closed positionable clamp as claimed in any one of claims 1 to 9.

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