CN111317539A

CN111317539A - Tissue clamp

Info

Publication number: CN111317539A
Application number: CN201811534205.2A
Authority: CN
Inventors: 张焕虎; 于士坤; 周彩杰; 夏玉波; 慕现强
Original assignee: Shandong Weray Surgical Medical Products Co ltd
Current assignee: Shandong Weray Surgical Medical Products Co ltd
Priority date: 2018-12-14
Filing date: 2018-12-14
Publication date: 2020-06-23

Abstract

The invention discloses a tissue clamp, which comprises a first clamping arm and a second clamping arm for clamping tissues, and also comprises an elastic connecting piece which is connected with the first clamping arm and the second clamping arm and is used for providing clamping force for the first clamping arm and the second clamping arm, wherein the first clamping arm and the second clamping arm are respectively provided with an anti-falling part which is distributed along the inner side wall and is used for preventing slipping. The arrangement mode can effectively prevent the tissue clamp from slipping relative to clamped tissues, and can greatly improve the clamping stability of the tissue clamp, so that the tissue clamp and the clamped tissues are more compact and firmer.

Description

Tissue clamp

Technical Field

The invention relates to the technical field of medical instruments, in particular to a tissue clamp.

Background

In the process of endoscopic minimally invasive surgery, "incision", "separation", "ligation", and "suture" are all basic steps in the surgery.

The traditional ligation operation generally adopts a silk thread to ligate the parts such as blood vessels, cystic ducts, ureters and the like, the operation is complex and takes a long time, and meanwhile, when the part to be ligated is in a deep tissue layer, the operation space of the endoscope minimally invasive surgery is more limited, so that the operation difficulty of silk thread ligation is increased; secondly, the commonly used U-shaped titanium clip clamps the clamping head through a special clip applier to clamp tissues or blood vessels, and has the defects that the slipping phenomenon is easy to occur, and the titanium clip can develop in the imaging examination, so that the diagnosis accuracy is influenced. In addition, other tissue clamps, such as absorbable vascular closure clamps, tend to soften rapidly when exposed to tissue fluid, and are prone to bleeding due to insufficient closure force, and to cause adverse effects such as infection and carcinogenesis. The non-absorbable tissue clamp is a hemostatic ligation instrument which appears in recent years and is generally used in clinic, and has the advantages of no toxicity, good biocompatibility, stable chemical performance, strong acid and alkali corrosion resistance, and no development and artifact in MRI and CT examination. However, there still exist some problems in use, mainly including the phenomena of easy slipping and other pathogens.

Therefore, how to avoid the slipping phenomenon caused by insufficient clamping firmness of the tissue clamp is a technical problem to be solved by those skilled in the art.

Disclosure of Invention

The invention aims to provide a tissue clamp, which can solve the problem of slippage caused by insufficient clamping firmness of the tissue clamp, can effectively prevent slippage and ensure that the tissue is clamped more tightly and firmly.

In order to achieve the above object, the present invention provides a tissue clamp, which includes a first clamp arm and a second clamp arm for clamping tissue, and further includes an elastic connector connecting the first clamp arm and the second clamp arm and providing clamping force to the first clamp arm and the second clamp arm, wherein the first clamp arm and the second clamp arm are respectively provided with an anti-slip component distributed along an inner sidewall for preventing slipping.

Preferably, the anti-slip part comprises two rows of arc-shaped protrusions which are parallel to and staggered with the inner side wall of the first clamping arm and the inner side wall of the second clamping arm, and anti-slip teeth which are inclined towards the clamped tissue are arranged at the opposite ends of the two rows of arc-shaped protrusions.

Preferably, the arc-shaped protrusion and the anti-slip tooth are an integral part.

Preferably, the first clamping arm and the second clamping arm are both arc-shaped clamping arms.

Preferably, the end of the first clamping arm is provided with a hook groove for being opened along the transverse direction of the first clamping arm, and the end of the second clamping arm is provided with a clamping hook for being clamped with the hook groove in a matched manner.

Preferably, the clamping device further comprises an adjusting hole which penetrates along the width direction of the elastic connecting piece and is used for preventing the first clamping arm and the second clamping arm from being broken off.

Preferably, the adjusting hole is a crescent-shaped adjusting hole.

Preferably, still include with the first clamping part of the lateral wall rigid coupling of first arm lock and with the second clamping part of second arm lock rigid coupling, first clamping part with the second clamping part be used for with the cooperation of establishing of centre gripping frock cover for first arm lock with the second arm lock joint.

Compared with the background technology, the invention designs the tissue clamp aiming at different requirements of the tissue clamp on slipping prevention. Because the closed part of the commonly used tissue clamp has no self-locking, the clamping firmness is not enough, and the slipping phenomenon is easy to occur under the action of the elastic restoring force of the clamped tissue, therefore, the tissue clamp which can prevent the slipping and ensure that the clamping is more compact and firmer is necessary to be used.

Particularly, organize and press from both sides including first arm lock and second arm lock, first arm lock and second arm lock can be in opposite directions press from both sides tight tissue, organize and press from both sides still including elastic connecting piece, first arm lock and second arm lock are connected through this elastic connecting piece, elastic connecting piece can provide the clamp force to first arm lock and second arm lock, furthermore, first arm lock all is equipped with the anticreep part with the second arm lock, this anticreep part is along first arm lock and second arm lock inside wall evenly distributed, the anticreep part can further spacing tissue press from both sides the motion of tightly pressing from both sides tight tissue relatively. Compared with the traditional tissue clamp, the arrangement mode can effectively prevent the tissue clamp from slipping relatively to the clamped tissue, and can greatly improve the stability of the tissue clamp, so that the tissue clamp and the clamped tissue are more compact and firmer.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic view of a tissue clip according to an embodiment of the present invention;

FIG. 2 is a schematic view of another angle of FIG. 1;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Wherein:

1-a first clamping arm, 2-a second clamping arm, 3-an elastic connecting piece, 4-an anti-falling part, 41-an arc-shaped bulge, 42-an anti-sliding tooth, 5-a hook groove, 6-a clamping hook, 7-an adjusting hole, 8-a first clamping part and 9-a second clamping part.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The core of the invention is to provide a tissue clamp, which can solve the problem of slippage caused by insufficient clamping firmness of the tissue clamp, effectively prevent slippage and ensure that the tissue is clamped more tightly and firmly.

In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

It should be noted that the following directional terms such as "upper end, lower end, left side, right side" and the like are defined based on the drawings of the specification.

Referring to fig. 1, fig. 2 and fig. 3, fig. 1 is a schematic structural view of a tissue clip according to an embodiment of the present invention; FIG. 2 is a schematic view of another angle of FIG. 1; fig. 3 is an enlarged schematic view of a portion a in fig. 2.

The tissue clamp provided by the embodiment of the invention comprises a first clamping arm 1 and a second clamping arm 2, wherein the first clamping arm 1 and the second clamping arm 2 can clamp tissues oppositely, and simultaneously, the tissue clamp also comprises an elastic connecting piece 3, one end of the first clamping arm 1 is connected with one end of the second clamping arm 2 through the elastic connecting piece 3, and the elastic connecting piece 3 can provide clamping force for the first clamping arm 1 and the second clamping arm 2, so that the first clamping arm 1 and the second clamping arm 2 can clamp the tissues under the action of the clamping force.

Further, first arm lock 1 all is equipped with anticreep part 4 with second arm lock 2, and this anticreep part 4 is along

first arm lock

1 and 2 inside wall evenly distributed of second arm lock, and anticreep part 4 can further spacing tissue clamp relatively press from both sides the motion of tightly pressing from both sides the tissue to can effectively prevent to organize the slippage that presss from both sides tightly the tissue relatively, and can improve the stability that the tissue pressed from both sides the centre gripping greatly, thereby make organize press from both sides with press from both sides closely more firm of tightly pressing from both sides the tissue centre gripping.

Of course, according to actual needs, both the first clamping arm 1 and the second clamping arm 2 can be designed as clamping arms with arc structures, for example, the first clamping arm 1 located on the left side can be an inward convex type, and the second clamping arm 2 located on the right side is an inward concave type, in other words, one surface of the first clamping arm 1 facing the second clamping arm 2 is a protrusion, and one surface of the second clamping arm 2 facing the first clamping arm 1 is a recess.

The lower end of the first clamping arm 1 on the left side is fixedly connected with the lower end of the second clamping arm 2 on the right side through the elastic connecting piece 3, so that the overall structure of the tissue clamp can be approximate to a V-shaped structure, and the arrangement mode can enable the opposite inner side walls of the first clamping arm 1 and the second clamping arm 2 to be better attached and clamp tissues; in addition, elastic connecting piece 3 can set up to elastic hinge part, and first arm lock 1 also can set up to the integral type structure with second arm lock 2 and elastic connecting piece 3 to can strengthen holistic steadiness.

In addition, the tissue clamp capable of absorbing the high polymer material has insufficient strength and large volume, influences the internal tissues of a human body after being placed, and has too high degradation speed, so that the first clamping arm 1 and the second clamping arm 2 can be arranged to be clamping arms made of non-absorbable high polymer materials; on the basis of ensuring the anti-dropping property, the clamp arm of the non-absorbable polymer material can avoid the adverse effects of insufficient closing force, easy infection and the like caused by rapid softening of the tissue clamp of the absorbable polymer material; of course, the first clamping arm 1 and the second clamping arm 2 can also be made of absorbable alloy materials, for example, absorbable magnesium alloy materials.

In this embodiment, the anti-slip part 4 includes two rows of the combination structures of the arc-shaped protrusions 41 and the anti-slip teeth 42, and the combination structures of the arc-shaped protrusions 41 and the anti-slip teeth 42 can further limit the movement of the tissue clamp relative to the clamped tissue to increase the clamping stability of the tissue clamp.

Specifically, two rows of arc-shaped protrusions 41 are parallel to and staggered with the inner side wall of the second clamping arm 2 along the inner side wall of the first clamping arm 1, the anti-slip teeth 42 are arranged at the opposite ends of the arc-shaped protrusions 41, the anti-slip teeth 42 are inclined towards the clamped tissue, that is, when the tissue is clamped by the tissue clamp, the inclined parts of the anti-slip teeth 42 can be embedded into the tissue, so that the tissue clamp can be prevented from slipping under the action of the restoring force of the clamped tissue due to insufficient clamping firmness of the tissue clamp.

Of course, according to actual needs, the above-mentioned combined structure of the arc-shaped protrusions 41 and the anti-slip teeth 42 can be configured as an integrated component, and the distance between any two arc-shaped protrusions 41 should be set to be equal, so that the uniformity of the clamping force applied to the clamped tissue can be ensured, and the tissue can be clamped by the tissue clamp; in addition, there may also be other different arrangements for the tooth form of anti-slip teeth 42, provided that the anti-slip function of the tissue clip can be ensured.

In order to further ensure the clamping firmness of the tissue clamp, the tissue clamp may further be provided with a locking structure capable of being matched with each other, for example, a hook groove 5 may be provided at an end portion of the first clamping arm 1, and a hook 6 may be provided at an end portion of the second clamping arm 2, wherein the hook groove 5 may be formed along a transverse direction of the first clamping arm 1; so, the upper end of first arm lock 1 and the upper end of second arm lock 2 can be close to under the elastic action of elastic connecting piece 3 in opposite directions, and then the tip of trip 6 can be along 5 joints in the upper end lateral wall of first arm lock 1 of colluding the groove, and the downside terminal surface of trip 6 further with collude the groove 5 cooperation and be connected.

The transverse direction of the first clamping arm 1 is the direction perpendicular to the cross section of the first clamping arm 1.

In order to optimize the above embodiment, the elastic connecting member 3 is further provided with an adjusting hole 7, the adjusting hole 7 penetrates along the width direction of the elastic connecting member 3, on one hand, the adjusting hole 7 can play a role in buffering, i.e. the first clamping arm 1 and the second clamping arm 2 can be prevented from being broken or damaged in the process of approaching in opposite directions, and on the other hand, the adjusting hole 7 can also play a role in adjusting the clamping force of the first clamping arm 1 and the second clamping arm 2 when clamping tissues.

In addition, considering the structure of the tissue clip similar to a V shape, the adjusting hole 7 can be crescent-shaped, that is, the middle size of the adjusting hole 7 is larger than the sizes of the two ends of the adjusting hole 7, the left end of the crescent-shaped adjusting hole faces the first clamping arm 1, and the right end of the crescent-shaped adjusting hole faces the second clamping arm 2; can guarantee like this that first arm lock 1 and second arm lock 2 have sufficient cushioning effect at the clamping process to can improve first arm lock 1 and second arm lock 2's life.

On the basis, the tissue clamp is further provided with a first clamping part 8 and a second clamping part 9, wherein the first clamping part 8 is fixedly connected with the outer side wall of the first clamping arm 1, the second clamping part 9 is fixedly connected with the outer side wall of the second clamping arm 2, and the first clamping part 8 and the second clamping part 9 can be matched with a special clamping tool in a sleeved mode, for example, the first clamping part 8 can be provided as two first cylindrical clamping bodies respectively positioned at two sides of the first clamping arm 1, the second clamping part 9 can be provided as a second cylindrical clamping body in nested fit with the second clamping arm 2, the second cylindrical clamping bodies are perpendicular to the second clamping arm 2, and two ends of the second cylindrical clamping bodies are protruded out of the second clamping arm 2; therefore, the special clamping tool can be sleeved on the first cylindrical clamping body and the second cylindrical clamping body, so that the first clamping arm 1 and the second clamping arm 2 are closed to clamp tissues.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The tissue clip provided by the present invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The tissue clamp is characterized by comprising a first clamping arm (1) and a second clamping arm (2) which are used for clamping tissues, and further comprising an elastic connecting piece (3) which is used for connecting the first clamping arm (1) and the second clamping arm (2) and providing clamping force for the first clamping arm (1) and the second clamping arm (2), wherein the first clamping arm (1) and the second clamping arm (2) are respectively provided with an anti-falling part (4) which is distributed along the inner side wall and used for preventing slipping.

2. The tissue clamp according to claim 1, characterized in that the anti-slip means (4) comprises two rows of arc-shaped projections (41) arranged in parallel and staggered with respect to the inner side walls of the first clamp arm (1) and the second clamp arm (2), and the opposite ends of the two rows of arc-shaped projections (41) are provided with anti-slip teeth (42) for inclining towards the clamped tissue.

3. The tissue clip according to claim 2, wherein the arcuate projections (41) are a one-piece member with the anti-slip teeth (42).

4. The tissue clamp according to claim 3, characterized in that the first clamping arm (1) and the second clamping arm (2) are both arc-shaped clamping arms.

5. The tissue clamp according to claim 4, characterized in that the end of the first clamping arm (1) is provided with a hook groove (5) for opening along the transverse direction of the first clamping arm (1), and the end of the second clamping arm (2) is provided with a hook (6) for cooperating and clamping with the hook groove (5).

6. The tissue clip according to any one of claims 1 to 5, further comprising an adjustment aperture (7) extending through the elastic connector (3) in the width direction thereof for preventing the first clip arm (1) and the second clip arm (2) from breaking.

7. The tissue clamp according to claim 6, characterized in that the adjustment aperture (7) is embodied as a crescent-shaped adjustment aperture.

8. The tissue clamp according to claim 7, further comprising a first clamping member (8) fixedly connected to an outer side wall of the first clamping arm (1) and a second clamping member (9) fixedly connected to the second clamping arm (2), wherein the first clamping member (8) and the second clamping member (9) are used for being sleeved and matched with a clamping tool to clamp the first clamping arm (1) and the second clamping arm (2).