CN222110103U - Single-type clip applier - Google Patents

Abstract

The utility model provides a single-shot clip applier, which comprises a handle main body and a spanner, wherein the spanner is elastically rotatably arranged on the handle main body, the spanner can rotate between a full open position, a half closed position and a full closed position of a clamp, which are sequentially arranged, a stop part is arranged on the spanner, the handle main body is provided with a stop part capable of moving between a locking position and an unlocking position, the stop part is in the locking position and allows the spanner to rotate between the full open position and the half closed position of the clamp, and when the spanner is in the half closed position of the clamp, the stop part is matched with the stop part to prevent the spanner from rotating towards the full closed position of the clamp, and the stop part is in the unlocking position and allows the spanner to rotate between the full open position of the clamp and the full closed position of the clamp. The wrench is convenient to rotate manually, so that the clamp is in a semi-closed state, and the stroke of the wrench is convenient to maintain manually, so that the clamp is continuously maintained in the semi-closed state.

Description

Single shot clip applier

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a single-shot clip applier.

Background

To fully expose the surgical field during surgery, ligations of blood vessels around the target tissue are required to prevent bleeding. Hemostasis has become one of the cores of the basic surgical procedures, with little exception to any surgical procedure on any part of the human body involving bleeding and hemostasis, typically using clip appliers to ligate clips to close the hemostasis.

Manual clip appliers in clinical use today include single-shot clip appliers, which include a handle, a shaft assembly and a clamp. The handle comprises a handle body and a spanner, the spanner is rotatably mounted on the handle body, the shaft assembly extends distally from the handle and defines a longitudinal axis, the clamp is mounted on the distal end portion of the shaft assembly, the shaft assembly is in transmission connection with the spanner, the spanner rotates to drive the shaft assembly to work, and the shaft assembly can drive the clamp to work to achieve operation of ligating blood vessels by the clip applier.

In the use process of the single-shot clip applier, the ligature clip needs to be firstly arranged in the clamp in vitro, and then the clamp is driven by the rotary wrench to be in a semi-closed state, so that the clamp and the shaft assembly can smoothly enter the body through the puncture outfit. In this process, the clamp state needs to be observed manually and visually to guide the manual rotation of the wrench to the half-closed position of the clamp, so that the clamp is in the half-closed state, and the wrench is required to be maintained manually at a position near the half-closed position of the clamp for a period of time, so that the clamp in the half-closed state smoothly enters the body through the puncture outfit. Time and labor are wasted, and errors of the manual rotation wrench stroke easily occur, so that the situation that the ligature clamp is wrongly triggered occurs.

For this reason, there is a need for an improved single-hair clip applier.

Disclosure of utility model

First, the technical problem to be solved

In view of the problems with the above-described techniques, the present utility model addresses, at least to some extent. Therefore, the utility model provides the single-shot clip applier which is convenient for manually rotating the wrench to enable the clamp to be in a semi-closed state, and is convenient for manually maintaining the stroke of the wrench to enable the clamp to be continuously maintained in the semi-closed state.

(II) technical scheme

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

The utility model provides a single-shot clip applier which comprises a handle, a shaft assembly and a clamp, wherein the handle comprises a handle main body and a spanner, the spanner is elastically and rotatably arranged on the handle main body, the shaft assembly extends distally from the handle, the clamp is arranged at the distal end part of the shaft assembly, the shaft assembly is in transmission connection with the spanner, the spanner rotates, the shaft assembly drives the clamp to be closed or opened in response to the actuation of the spanner, the spanner can rotate between a fully opened position, a half closed position and a fully closed position of the clamp which are sequentially arranged, and a stop part is arranged on the spanner;

The stop member is in a locked position allowing the wrench to rotate between a fully open clamp position and a fully closed clamp position and cooperates with the stop portion to prevent the wrench from rotating toward the fully closed clamp position when the wrench is in the fully closed clamp position, and in an unlocked position allowing the wrench to rotate between the fully open clamp position and the fully closed clamp position.

Optionally, the first end of the wrench is rotatably installed in the handle body, the stop part is arranged at the first end of the wrench, and the stop part is provided with a trigger end extending out of the handle body and a stop part extending into the handle body and used for being matched with the stop part, and the trigger end and the stop part are arranged in a linkage way.

Optionally, the stop piece is a pressing piece, the position of the stop piece is changed by pressing the stop piece, or the stop piece is a toggle piece, and the position of the stop piece is changed by toggling the stop piece.

Optionally, the stop piece is a pressing piece, the handle body is provided with a first shell part corresponding to the first end position of the wrench and located far away from the first end of the wrench, the stop piece is penetratingly arranged on the first shell part and is in sliding connection with the handle body in the far and near direction, and the stop part is arranged on the far side surface of the first end of the wrench.

Optionally, the stop piece is a pressing piece, the handle main body is provided with a second shell part corresponding to the first end position of the wrench and positioned at the left side of the first end of the wrench, the pressing piece is penetratingly arranged on the second shell part and is in sliding connection with the handle main body along the left-right direction, and the stop part is arranged on the far side surface or the left side surface of the first end of the wrench.

Optionally, the stop piece is a toggle piece, the handle main body is provided with a second shell part corresponding to the first end position of the wrench and positioned at the left side of the first end of the wrench, the stop piece is penetratingly arranged on the second shell part and is in sliding connection with the handle main body along the far and near directions, and the stop part is arranged on the far side surface or the left side surface of the first end of the wrench.

Optionally, the stopper is mounted on the handle body through a first elastic member, and the stopper moves from the unlocking position to the locking position, and the elastic deformation amount of the first elastic member gradually increases.

Optionally, the stopper includes pressing portion and the column portion that connects gradually, and the column portion runs through and sets up on the casing of handle main part, and the first end of column portion stretches out the handle main part and is connected with pressing portion, and the second end of column portion stretches into the handle main part and is provided with the stopper portion, and the stopper portion is for setting up the stopper piece at column portion second end tip, and pressing surface of pressing portion is greater than the cross section of column portion.

Optionally, the first elastic element is a spring sleeved on the columnar portion, the first end of the first elastic element is abutted with the pressing portion, and the second end of the first elastic element is abutted with the handle main body.

Optionally, the wrench is provided with a first wrench part positioned on the upper side of the wrench rotating shaft and a second wrench part positioned on the lower side of the wrench rotating shaft, and the stop part is arranged on the first wrench part.

(III) beneficial effects

The beneficial effects of the utility model are as follows:

According to the single-shot clip applier provided by the utility model, through the cooperation of the stop piece and the stop part, in the process of rotating the wrench, accurate positioning of the wrench at the half-closed position of the clamp can be realized, a user can conveniently rotate the wrench manually, the clamp is in the half-closed state, and the stop part can effectively remind the user that the clamp is in the half-closed state at the moment because the stop part prevents the wrench from rotating to the full-closed position of the clamp, when the wrench rotates to the half-closed position of the clamp, the stop part prevents the wrench from rotating to the full-closed position of the clamp, and the wrench has a tendency of rotating to the full-closed position of the clamp in cooperation with manual holding of the wrench, so that the clamp can be continuously maintained in the half-closed state, namely the stroke of the wrench can be conveniently and manually maintained. The spanner stroke does not need to be manually rotated to the clamp semi-closed position according to the clamp state observed by human eyes, the operation requirement of a user on the spanner stroke is reduced, the operation stability of the user on the clamp applier is improved, and the operation efficiency is improved.

Drawings

The utility model is described with the aid of the following figures:

FIG. 1 is a schematic view of the structure of a clip applier according to embodiment 1 of the utility model, wherein the mating structure of a wrench and stopper are shown in perspective, the wrench being in a fully open clamp position, the stopper being in a locked position;

FIG. 2 is an enlarged schematic view of region A of FIG. 1;

FIG. 3 is a schematic view of the structure of the clip applier according to embodiment 1 of the utility model, wherein the mating structure of the wrench and stopper are shown in perspective, the wrench being in the clamp semi-closed position, the stopper being in the locked position;

FIG. 4 is an enlarged schematic view of region B of FIG. 3;

FIG. 5 is a schematic view of the structure of the clip applier according to embodiment 1 of the utility model, wherein the mating structure of the wrench and stopper are shown in perspective, the wrench being in the fully closed position of the jaws, the stopper being in the unlocked position;

fig. 6 is an enlarged schematic view of the region C in fig. 5.

[ Reference numerals description ]

10, A stop member, 11, a handle part and 17, a first shell part;

101, a pressing part, 102, a columnar part, 103, a stop part;

2, a spanner;

20, a stop part;

4, a shaft assembly;

5, clamping;

and 6, ligating clips.

Detailed Description

It should be noted that "proximal" as referred to herein refers to a side closer to the operator, and "distal" refers to a side closer to the patient. References herein to "upper", "lower", "front", "rear", "left", "right", and the like, are made with reference to the orientation of fig. 1, as are the front-to-back directions.

Example 1

As shown in fig. 1-6, the present embodiment provides a single-shot clip applier that includes a handle, a shaft assembly 4, and a clamp 5.

Wherein the handle comprises a handle body and a wrench 2, the handle body having a grip portion 11 for gripping. The first end of the wrench 2 is elastically rotatably mounted on the handle body, and the second end of the wrench 2 and the grip portion 11 are spaced apart from each other to form a V-shaped opening. The holding wrench 2 elastically rotates, the second end of the wrench 2 is close to the handle portion 11 to reduce the V-shaped opening, the wrench 2 is released to elastically recover, and the second end of the wrench 2 is far away from the handle portion 11 to enlarge the V-shaped opening.

A shaft assembly 4 extends distally from the handle and defines a longitudinal axis, and a clamp 5 is mounted on a distal end portion of the shaft assembly 4, the shaft assembly 4 being in driving connection with the wrench 2. The wrench 2 can rotate between a fully open (i.e. fully open clamp 5), a semi-closed clamp position and a fully closed clamp (i.e. fully closed clamp 5) position in sequence, after the ligating clip 6 is installed in the fully open clamp 5, the grip wrench 2 rotates from the fully open clamp position to the semi-closed clamp position, the shaft assembly 4 drives the clamp 5 to gradually close until the clamp 5 is in the semi-closed state in response to the actuation of the wrench 2, the grip wrench 2 rotates from the semi-closed clamp position to the fully closed clamp position, the shaft assembly 4 drives the clamp 5 to continue to close in response to the actuation of the wrench 2 until the clamp 5 is in the fully closed state, the wrench 2 is loosened, and the wrench 2 automatically returns from the fully closed clamp position to the fully open clamp position, and the shaft assembly 4 also automatically returns to the initial state.

The handle body is provided with a stopper 10 movable between a locking position and an unlocking position, the first end of the wrench 2 is provided with a stop 20, the stopper 10 is in the locking position allowing the wrench 2 to rotate between a fully open clamp position and a fully closed clamp position, and when the wrench 2 is in the fully closed clamp position, the stopper 10 cooperates with the stop 20 to prevent the wrench 2 from rotating to the fully closed clamp position, and the stopper 10 is in the unlocking position allowing the wrench 2 to rotate between the fully open clamp position and the fully closed clamp position.

The setting can realize the accurate positioning of the wrench 2 at the clamp half-closed position in the process of rotating the wrench 2 through the cooperation of the stop piece 10 and the stop piece 20, the wrench 2 can be conveniently rotated manually by a user, the clamp 5 is in the half-closed state, and the stop piece 20 can effectively remind the user that the clamp 5 is in the half-closed state at the moment because the stop piece 20 prevents the wrench 2 from rotating towards the clamp full-closed position, when the wrench 2 rotates to the clamp half-closed position, the stop piece 20 prevents the wrench 2 from rotating towards the clamp full-closed position, and the wrench 2 has a trend of rotating towards the clamp full-closed position by being matched with manual holding of the wrench 2, so that the clamp 5 can be continuously maintained in the half-closed state, namely the stroke of the wrench 2 can be conveniently and manually maintained. The stroke of the wrench 2 does not need to be manually rotated to the half-closed position of the clamp according to the state of the clamp 5 observed by human eyes, so that the operation requirement of a user on the stroke of the wrench 2 is reduced, the operation stability of the user on the clip applier is improved, and the operation efficiency is improved.

The clip applier provided by the embodiment is characterized in that the ligature clip 6 is installed in the clamp 5 initially, then, the clip applier is held at the same time when the wrench 2 at the fully opened position of the clamp is moved to the locking position (shown in fig. 1 and 2), then, the wrench 2 is held and pressed to rotate from the fully opened position to the fully opened position of the clamp, the stopper 10 is matched with the stop part 20 at the fully closed position of the clamp, the wrench 2 is prevented from rotating to the fully closed position of the clamp (shown in fig. 3 and 4), the accurate positioning of the wrench 2 at the fully closed position of the clamp is realized, the wrench 2 is stably kept at the fully closed position of the clamp, time and labor are saved, the operation requirement on the stroke of the wrench 2 by a user is reduced, the operation stability of the clip applier is improved, then, the clip applier is moved into the body from outside of the body through the puncture device, the stopper 10 is in the unlocking position, the wrench 2 is loosened, the wrench 2 is rotated from the fully closed position of the clamp to the fully opened position of the clamp, at the moment, the clamp 5 is in the fully opened state, the user is convenient to find a blood vessel to be closed, the user is required to be closed, the blood vessel is then, the wrench 2 is rotated from the fully opened to the fully closed position of the clamp, the clamp 5, and the wrench 2 is rotated from the fully closed to the fully opened position of the clamp (shown in fig. 3 and 5, and finally, the full closed position is opened and the wrench is opened and closed by the wrench 2).

Preferably, as shown in fig. 2, in the present embodiment, the first end of the wrench 2 is rotatably mounted inside the handle body, and the stopper 10 has a trigger end extending out of the handle body and a stopper 103 extending into the handle body for cooperation with the stopper 20, the trigger end being provided in conjunction with the stopper 103. In this way, the structure is compact, and the user can act on the trigger end to change the stopper 103 to be in the locked position or the unlocked position.

Preferably, the stopper 10 is a pressing piece, i.e. the position (locking position or unlocking position) in which the stopper 10 is located is changed by pressing the stopper 10.

It is further preferred that the handle body has a first housing part 17, the first housing part 17 corresponds in position to the first end of the wrench 2 and is located distally of the first end of the wrench 2, that the stopper 10 is provided through the first housing part 17, and that the stopper 10 is slidingly connected with the handle body in the distal-proximal direction. So set up, press the stopper 10 and make the stopper 10 slide along the far and near direction, make things convenient for the cooperation of stopper 10 and backstop 20 on spanner 2.

Preferably, in the present embodiment, the stopper 10 is mounted on the handle body by a first elastic member, and the stopper 10 is moved from the unlocking position to the locking position, and the elastic deformation amount of the first elastic member is gradually increased. Therefore, the stop member 10 can be elastically restored to the unlocking position from the locking position by means of the first elastic member, so that when the user needs to position the stop member 10 in the locking position, the stop member 10 is pressed, and when the user needs to position the stop member 10 in the unlocking position, the stop member 10 is released, and the user operation is simpler and more convenient. Alternatively, the stopper 10 is mounted on the handle body by the first elastic member, and the stopper 10 is moved from the locking position to the unlocking position, and the elastic deformation amount is gradually increased, so that the above-described similar effect can be achieved.

Preferably, the stop 10 is slidably coupled to the handle body by a limiting structure that limits the sliding of the stop 10 between the locked and unlocked positions. In this way, the accuracy and convenience of the user moving the stopper 10 to the locked and unlocked positions is improved. Further, in the embodiment, the limiting structure comprises a limiting hole formed in the stop piece 10 and a limiting column arranged on the handle body, wherein the limiting column is inserted into the limiting hole, the stop piece 10 is located at a locking position, the limiting column is abutted with the distal wall of the limiting hole, the stop piece 10 is located at an unlocking position, and the limiting column is abutted with the proximal wall of the limiting hole.

Specifically, in this embodiment, the stopper 10 includes a pressing portion 101 and a columnar portion 102 connected in sequence, the columnar portion 102 is disposed on the first shell portion 17 in a penetrating manner, a first end of the columnar portion 102 extends out of the handle body and is connected with the pressing portion 101, a second end of the columnar portion 102 extends into the handle body and is provided with a stopper 103, a limiting hole is formed in the columnar portion 102, the first elastic member is a spring sleeved on the columnar portion 102, a first end of the first elastic member abuts against the pressing portion 101, and a second end of the first elastic member abuts against the handle body. Thus, the structure is compact and stable. Further, in the present embodiment, the stopper 103 is a stopper piece extending in the distal-proximal direction provided at the second end portion of the columnar portion 102. In this way, the stopper 103 is conveniently engaged with the stopper 20.

Preferably, the stop 20 is provided on a distal face of the first end of the wrench 2. The stop 20 thus provided facilitates the cooperation with the stop 10 provided on the first housing part 17. Further, in the present embodiment, the stopper 20 is in a pit shape, the stopper 10 is in the locked position, and when the wrench 2 is in the clamp half-closed position, the stopper 10 abuts against the upper side wall of the stopper 20, preventing the wrench 2 from rotating to the clamp full-closed position. Alternatively, the stop 20 is provided on the left or right side of the first end of the wrench 2, and the engagement of the stop 20 with the stopper 10 provided on the first housing portion 17 can be achieved.

Preferably, the wrench 2 has a first wrench part and a second wrench part respectively located at the upper and lower sides of the rotation axis of the wrench 2, the second wrench part is used for holding, and the stop part 20 is disposed at the first wrench part. In this way, the structure is compact, and the cooperation of the stop member 10 and the stop portion 20 is facilitated.

In this embodiment, the wrench 2 is connected to the handle body by a second elastic member. The holding spanner 2 rotates, the second elastic piece is elastically deformed, the second end of the spanner 2 is close to the handle part 11 to enable the V-shaped opening to be smaller, the spanner 2 is loosened, the second elastic piece is elastically restored, and the second end of the spanner 2 is far away from the handle part 11 to enable the V-shaped opening to be larger. The second elastic member may be a spring, a compression spring, a rubber member, or the like. Further, in the present embodiment, the second elastic member is accommodated in the grip portion 11, and the first wrench portion is connected to the handle main body through the second elastic member.

Example 2

The embodiment provides a method for using the single-shot clip applier of embodiment 1, comprising the steps of installing a ligating clip in a clamp, holding a wrench in a fully open clamp position while moving a stopper in a locked position, then rotating the grip wrench from the fully open clamp position to a semi-closed clamp position, inserting the clip applier from outside the body through a puncture outfit, then moving the stopper in an unlocked position, releasing the wrench to a fully open clamp position, then rotating the grip wrench to the fully closed clamp position to a fully clamped clamp position, and finally releasing the wrench.

In the use process of the manual clip applier, the control of the spanner stroke by a user is simple, labor is saved, and the operation stability of the user on the clip applier is improved.

Further, when the stopper is a resiliently slidable push member as described in embodiment 1, the clip applier is used by installing the ligating clip in the clip, holding the wrench in the fully open position of the clip while the push member is in the locked position, then rotating the grip wrench from the fully open position of the clip to the semi-closed position of the clip applier from outside the body through the puncture outfit, then releasing the stopper (which then resiliently returns to the unlocked position) and releasing the wrench to bring the clip into the fully open position, then rotating the grip wrench to the fully closed position of the clip to bring the clip into the fully closed position, and finally releasing the wrench. Thus, the convenience of the user for controlling the stroke of the wrench is further improved.

Example 3

The main difference between this embodiment and embodiment 1 is that:

The handle main body is provided with a second shell part, the second shell part corresponds to the first end of the wrench in position and is positioned at the left side of the first end of the wrench, the stop part is arranged on the second shell part in a penetrating way, and the stop part is connected with the handle main body in a sliding way along the left-right direction. The stop piece arranged in this way is also convenient for a user to press so as to be matched with the stop part.

Correspondingly, the stop is arranged on the distal side or the left side of the first end of the wrench. The stop thus provided can cooperate with a stop provided on the second housing part.

The rest is the same as in embodiment 1 and will not be described here again.

Example 4

The main difference between this embodiment and embodiment 1 is that:

the stop piece is a toggle piece, namely, the position of the stop piece is changed by toggling the stop piece.

Preferably, the handle body is provided with a second shell part, the second shell part corresponds to the first end of the wrench in position and is positioned at the left side of the first end of the wrench, the stop piece is penetratingly arranged on the second shell part, and the stop piece is connected with the handle body in a sliding mode along the far and near direction. The stop member arranged in this way can be shifted in the far and near directions to change the position (i.e. the locking position and the unlocking position) of the stop member.

Accordingly, the stop may be provided on either the distal side of the first end of the wrench or the left side of the first end of the wrench. The stop portions thus provided can each cooperate with a stop member provided on the second housing portion.

The rest is the same as in embodiment 1 and will not be described here again.

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

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.

In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the utility model.

Claims (10)

1. A single-shot clip applier characterized by comprising a handle, a shaft assembly (4) and a clamp;

The handle comprises a handle main body and a wrench (2), wherein the wrench (2) is elastically and rotatably arranged on the handle main body, a shaft assembly (4) extends distally from the handle, a clamp (5) is arranged at the distal end part of the shaft assembly (4), and the shaft assembly (4) is in transmission connection with the wrench (2);

The wrench (2) can rotate among a full-open clamp position, a half-closed clamp position and a full-closed clamp position which are sequentially arranged, a stop part (20) is arranged on the wrench (2), and a stop part (10) capable of moving between a locking position and an unlocking position is arranged on the handle main body;

The stopper (10) is in a locked position allowing the wrench (2) to rotate between a fully open clamp position and a fully closed clamp position, and when the wrench (2) is in the fully closed clamp position, the stopper (10) cooperates with the stopper (20) to prevent the wrench (2) from rotating toward the fully closed clamp position, and the stopper (10) is in an unlocked position allowing the wrench (2) to rotate between the fully open clamp position and the fully closed clamp position.

2. The single-hair clip applier according to claim 1, wherein a first end of the wrench (2) is rotatably mounted inside the handle body, and the stopper (20) is provided at the first end of the wrench (2);

The stop part (10) is provided with a trigger end extending out of the handle main body and a stop part (103) extending into the handle main body and used for being matched with the stop part (20), and the trigger end is arranged in linkage with the stop part (103).

3. The single-shot clip applier of claim 2, wherein the stop member (10) is a pressing member, the position of the stop member (10) is changed by pressing the stop member (10), or the stop member (10) is a toggle member, and the position of the stop member (10) is changed by toggling the stop member (10).

4. A single-shot clip applier as claimed in claim 3, characterised in that the stop (10) is a push-piece, the handle body having a first shell portion (17) corresponding in position to the first end of the wrench (2) and distal to the first end of the wrench (2);

The stop piece (10) is arranged on the first shell part (17) in a penetrating mode, the stop piece (10) is connected with the handle main body in a sliding mode along the far and near direction, and the stop part (20) is arranged on the far side face of the first end of the wrench (2).

5. A single-shot clip applier as claimed in claim 3, characterised in that the stop member (10) is a push member, the handle body having a second shell portion corresponding in position to the first end of the wrench (2) and located to the left of the first end of the wrench (2);

The pressing piece is arranged on the second shell part in a penetrating mode and is connected with the handle body in a sliding mode along the left-right direction, and the stopping part (20) is arranged on the far side face or the left side face of the first end of the wrench (2).

6. A single-shot clip applier as claimed in claim 3, characterised in that the stop member (10) is a toggle member, the handle body having a second shell portion corresponding in position to the first end of the wrench (2) and located to the left of the first end of the wrench (2);

The stop part (10) is arranged on the second shell part in a penetrating way, the stop part (10) is connected with the handle main body in a sliding way along the far and near direction, and the stop part (20) is arranged on the far side surface or the left side surface of the first end of the wrench (2).

7. The clip applier of claim 1, wherein the stopper (10) is mounted to the handle body by a first elastic member, the stopper (10) being moved from the unlocked position to the locked position, the elastic deformation of the first elastic member gradually increasing.

8. The single-shot clip applier according to claim 3 or 7, characterized in that the stopper (10) comprises a pressing portion (101) and a columnar portion (102) which are sequentially connected, the columnar portion (102) is penetratingly provided on the housing of the handle body, a first end of the columnar portion (102) extends out of the handle body to be connected with the pressing portion (101), a second end of the columnar portion (102) extends into the handle body and is provided with a stopper portion (103), the stopper portion (103) is a stopper piece provided at an end of the second end of the columnar portion (102), and a pressing surface of the pressing portion (101) is larger than a cross section of the columnar portion (102).

9. The clip applier of claim 8, wherein said first elastic member is a spring that is sleeved on said columnar portion (102), a first end of said first elastic member abuts said pressing portion (101), and a second end of said first elastic member abuts said handle body.

10. The clip applier of one type according to any one of claims 1 to 7, wherein the wrench (2) has a first wrench part located at an upper side of a rotation axis of the wrench (2) and a second wrench part located at a lower side of the rotation axis of the wrench (2), and the stopper (20) is provided at the first wrench part.