CN203388909U

CN203388909U - Clip applier for ligature clip

Info

Publication number: CN203388909U
Application number: CN201320470788.3U
Authority: CN
Inventors: 周秋梅; 徐刚毅; 郑海菁
Original assignee: ZHEJIANG MEDZONE BIOMEDICINE VENTURE INVESTMENT CO Ltd; HANGZHOU MEDZONE BIO-TECHNOLOGY Co Ltd
Current assignee: Hangzhou Mingshan Biotechnology Co ltd
Priority date: 2013-08-02
Filing date: 2013-08-02
Publication date: 2014-01-15
Anticipated expiration: 2023-08-02

Abstract

The utility model provides a clip applier for a ligature clip. The clip applier comprises a first clip arm and a second clip arm, clamping ends of the first clip arm and the second clip arm for clamping the ligature clip deviate from a plane of the first clip arm and the second clip arm by an angle, and an elastic piece for keeping the first clip arm and the second clip arm open is arranged on one side of each handle for hand holding of the first clip arm and the second clip arm. As the clamping ends of the clip applier deviate from the plane of the clip applier, the clamping ends are not easily stopped by the handles or hands of operators in the surgical process, a whole blood vessel and the position of the ligature clip are easily seen clearly, and surgical risk is reduced. In addition, the clip applier is simple in structure and high in reliability and has fewer parts.

Description

Clip applier for ligature clip

Technical Field

The utility model relates to a medical instrument for surgical operation, in particular to a clip applier for closing ligation clips in the surgical operation process. The ligation clip can be clinically used for anastomosis and ligation of blood vessels and tissues in vivo and in vitro surgical operations, and in practical application, the ligation clip is also commonly referred to as a vascular clip, a ligation buckle, a surgical lock clip, a tissue clip and the like.

Background

To fully expose the surgical field during surgery, it is necessary to ligate the severed blood vessels within the incision to prevent bleeding. Hemostasis has become one of the cores of basic surgical techniques, and surgical operations at any part of the human body involve bleeding and hemostasis almost without exception. Generally, the broken blood vessel is clamped by a hemostatic clamp and then is ligated by a suture, the method is troublesome to operate, and the operation efficiency is reduced; another approach is to block blood flow by ligating clips, such as aneurysm clips used in aneurysm surgery, bile duct clips used in bile duct surgery, and the like. The materials are mostly silver or alloy, and then medical plastics.

Currently, in the clinical laparoscopic surgery, ligature clips such as the Hem-o-lok ligature clip are often used to treat small blood vessels. The ligature clamp in the prior art is often very tiny, can only operate through the instrument of clip applier class, and the clip applier is used for the centre gripping tip of centre gripping ligature clamp to be far away relatively apart from handheld portion, and the handheld portion of clip applier and arm lock are great for the ligature clamp relatively in addition, stop the sight easily among the operation process to be difficult to see blood vessel full appearance and back wall at the closure in-process of ligature clamp, it is more inconvenient to use. Meanwhile, when the exposure is poor, the angle is not good, and the diameter of the treated blood vessel is thick in laparoscopic surgery, the blood vessel is difficult to treat under direct vision, and great operation risk exists. On the other hand, some existing clip appliers have some defects in structural design, which are particularly shown in that the number of structural parts is large and the reliability is poor.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the present invention is to provide a clip applier for ligature clips, which reduces or avoids the aforementioned problems.

In order to solve the technical problem, the utility model provides an execute clamp for ligature clamp, wherein, execute clamp and include a first arm lock and a second arm lock, first arm lock and second arm lock are used for the centre gripping tip skew of centre gripping ligature clamp an angle in the plane at first arm lock and second arm lock place, first arm lock and second arm lock are used for handheld portion one side of handing to be provided with the messenger first arm lock and second arm lock keep the flexure strip of open mode.

Preferably, the angle range of the deviation of the clamping end part from the plane of the first clamping arm and the second clamping arm is 10-90 degrees.

Preferably, the elastic piece comprises a first elastic piece and a second elastic piece, and the first elastic piece and the second elastic piece are respectively fixed on the first clamping arm and the second clamping arm through screws.

Preferably, the end of the first elastic piece connected with the first clamping arm is provided with a hook, and the first clamping arm is provided with a small hole for being clamped into the hook.

Preferably, the connecting portion of the first elastic piece and the second elastic piece has an opening with a slit, and the connecting portion of the second elastic piece and the first elastic piece has a narrowed portion which can be limited to move freely in the opening.

Preferably, the first clamping arm and the second clamping arm are respectively provided with a first clamping end and a second clamping end, and the first clamping end and the second clamping end are symmetrical in structure.

Preferably, the first clamping end portion has a guide groove for receiving the ligating clip, and both side ends of the guide groove are provided with two clamping jaw pieces protruding outward facing the second clamping end portion.

Preferably, the second clamping end has a guide groove for receiving the ligating clip, and both ends of the guide groove are provided with two clamping jaw pieces protruding outward facing the first clamping end.

The utility model provides an above-mentioned tong's centre gripping tip has skew the plane of tong itself, and the centre gripping tip is difficult to be blockked by handheld portion or operator's hand among the operation process, sees the position that vascular general and ligature pressed from both sides clearly easily, has reduced the operation risk. Additionally, the utility model discloses a execute clamp simple structure, spare part is few, and the reliability is high.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,

fig. 1 is a perspective view of a clip applier for a ligating clip according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of the clip applier shown in FIG. 1 from another perspective;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1 at position A;

FIG. 4 is an enlarged schematic view of the structure of FIG. 2 at position B;

fig. 5 shows an enlarged view of the structure at position C in fig. 1.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.

Fig. 1 and 2 are schematic perspective views showing a clip applier 1 for a ligating clip (not shown in the drawings) according to an embodiment of the present invention, wherein the clip applier 1 includes a first clip arm 10 and a second clip arm 20, and the first clip arm 10 and the second clip arm 20 are connected in a clip shape in a manner similar to a conventional medical clip.

Unlike conventional medical pliers, the clamping end 30 of the clip applier 1 for clamping a ligation clip is offset from the plane of the first and second clamping

arms

10 and 20 by an angle a, and as shown in the drawings, in one embodiment, the angle of the offset of the clamping end 30 from the plane of the first and second clamping

arms

10 and 20 is in the range of 10-90 degrees. The advantage of this design is that can make the clamping tip 30 deviate from the plane of application pincers 1 itself, and clamping tip 30 is difficult to be blockked by handheld portion or operator's hand during the operation, easily sees the vascular general appearance and the position of ligature clamp, has reduced the operation risk.

The first arm 10 and the second arm 20 are provided with an elastic piece 40 on the hand-held side for holding the first arm 10 and the second arm 20 in an open state. As shown in the figure, the elastic piece 40 includes a first elastic piece 41 and a second elastic piece 42, and the first elastic piece 41 and the second elastic piece 42 are respectively fixed on the first clamping arm 10 and the second clamping arm 20 by screws.

The end of the first spring 41 connected to the first clip arm 10 has a hook 49 (see fig. 3 for an enlarged view, in which the hook 43 is only shown in a portion visible from the outside), and the first clip arm 10 has an aperture 19 for catching the hook 49.

The connecting portion of the first elastic piece 41 and the second elastic piece 42 has an opening 44 with a slit 43, and the connecting portion of the second elastic piece 42 and the first elastic piece 41 has a narrowing portion 45, wherein the narrowing portion 45 can limit the free movement in the opening 44, as shown in the enlarged schematic view of fig. 4.

The above structure achieves the function of keeping the clip applier 1 in the open state by the two

elastic pieces

41, 42. In addition, the slit 43 of the first elastic piece 41 is used to open the slit 43 for the second elastic piece 42 to pass through during the assembly process, so that the narrowed portion 45 of the second elastic piece 42 is located in the opening 44, and then the slit 43 is closed, so that the narrowed portion 45 is limited in the opening 44 and cannot be separated. Since the two

elastic pieces

41 and 42 will move relatively to each other to generate a force during the operation of the clip applier 1, the narrowed portion 45 of the second elastic piece 42 will generate a pushing force on the opening 44 of the first elastic piece 41, and in order to prevent the first elastic piece 41 from being displaced under the pushing force, a hook 49 is particularly arranged at the end of the first elastic piece 41 for being caught in the small hole 19 of the first clip arm 10.

As shown in the enlarged view of fig. 5, the first clamping arm 10 and the second clamping arm 20 respectively have a first clamping end 13 and a second clamping end 23, and as shown in the figure, the first clamping end 13 and the second clamping end 23 are symmetrical in structure.

The first clamping end portion 13 has a guide groove 14 for receiving the ligating clip, and both side ends of the guide groove 14 are provided with two clamping claw pieces 15 protruding outward facing the second clamping end portion 23. Similarly, the second clamping end 23 also has a guide slot 14 for receiving the ligating clip, and the two side ends of the guide slot 14 are provided with two clamping claws 15 protruding outward facing the first clamping end 13.

It is to be understood by those skilled in the art that while the present invention has been described in terms of several embodiments, it is not intended that each embodiment cover a separate embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including all technical equivalents which are encompassed by the claims.

The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.

Claims

1. The clamp applying clamp for the ligation clamp is characterized by comprising a first clamp arm and a second clamp arm, wherein the clamping end parts of the first clamp arm and the second clamp arm, which are used for clamping the ligation clamp, deviate from the plane where the first clamp arm and the second clamp arm are located by an angle, and one side of the handheld parts, which are used for being held by hands, of the first clamp arm and the second clamp arm is provided with an elastic piece which enables the first clamp arm and the second clamp arm to be kept in an open state.

2. The clip applier of claim 1, wherein said clamping ends are angularly offset from a plane in which said first and second clamp arms lie in a range of 10-90 degrees.

3. The clip applier of claim 1, wherein said spring tabs comprise a first spring tab and a second spring tab, said first spring tab and said second spring tab being secured to said first clip arm and said second clip arm, respectively, by screws.

4. The clip applier of claim 3, wherein said first spring tab has a hook at an end thereof connected to said first clip arm, said first clip arm having an aperture for engaging said hook.

5. The clip applier of claim 4, wherein said first resilient tab is connected to said second resilient tab at a location having an opening with a slit, and said second resilient tab is connected to said first resilient tab at a location having a narrowed portion, said narrowed portion being constrained from moving freely within said opening.

6. The clip applier of claim 1, wherein said first and second clip arms have a first and a second clip end, respectively, said first and second clip ends being symmetrically configured.

7. The clip applier of claim 6, wherein said first clip end has a guide slot for receiving said ligating clip, said guide slot having two outwardly projecting clip tabs disposed at opposite lateral ends thereof for facing said second clip end.

8. The clip applier of claim 7, wherein said second clamping end has a guide slot for receiving said ligating clip, said guide slot having two outwardly projecting clamping jaw tabs disposed at opposite lateral ends thereof for facing said first clamping end.