CN114052822B

CN114052822B - Ligature clamp

Info

Publication number: CN114052822B
Application number: CN202010773364.9A
Authority: CN
Inventors: 徐荣华
Original assignee: Suzhou IntoCare Medical Technology Co Ltd
Current assignee: Suzhou IntoCare Medical Technology Co Ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2023-11-03
Anticipated expiration: 2040-08-04
Also published as: CN114052822A

Abstract

The invention relates to a ligature clip, which belongs to medical materials. The ligature clamp comprises two clamp arms which are oppositely arranged, and an elastic connecting part which is connected with the two clamp arms, wherein the clamp arms are provided with two side surfaces which are oppositely arranged and a clamping surface which is connected with the two side surfaces, a plurality of anti-falling grooves are formed in the clamping surface in a concave manner, and at least one clamp arm is inwards bent or outwards raised to form a bending part. The axial and radial anti-drop force is increased by arranging the anti-drop groove on the clamping surface, and the anti-drop groove is of a concave structure, so that the blood vessel can be prevented from being punctured while the anti-drop force is improved, and the safety of an operation is improved; through setting up the flexion, can make the vascular card in the flexion when the centre gripping blood vessel, compare with current structure, the slippage power is bigger, and makes at the centre gripping great vessel, can outwards move to both sides, can be fit for the blood vessel of different diameters, and little to the damage of blood vessel, can resist the vascular expansion power again greatly, has improved anti-leakage ability.

Description

Ligature clamp

Technical Field

The invention relates to a ligature clip, which belongs to medical materials.

Background

The ligature clip is suitable for ligature of blood vessels or other tubular structures of a non-absorbable ligature nail clip for clinical laparoscopic surgery or surgery, and the ligature clip generally comprises two clamping arms which are arranged oppositely and an elastic connecting part for connecting the clamping arms, and the prior ligature clip generally has the following problems: in order to improve the anti-falling force, a plurality of protruding particles are usually formed on the clamping surface of the clamping arm of the ligation clamp, however, since the ligation clamp is of a micro structure, after the protruding particles are arranged, the protruding particles can be embedded into a blood vessel to puncture the blood vessel although protruding when the anti-falling force is achieved, in addition, the ligation clamp in the prior art can only be used on the blood vessel with fixed size, and if the blood vessel size is changed, the ligation clamp with other types needs to be replaced.

Disclosure of Invention

The invention aims to provide a ligature clip which can improve the anti-falling force and safety and can be suitable for blood vessels with different sizes.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a ligature clip, includes two clamp arms that set up relatively and connect two the elastic connection portion of clamp arm, the clamp arm has two sides that set up in opposite directions and connect two the clamping face of side, the indent is formed with a plurality of anticreep grooves on the clamping face, at least one inwards bend or outwards bulge is formed with the flexion on the clamp arm.

Further, each anti-falling groove is provided with two anti-falling walls which are oppositely arranged, the included angle of the two anti-falling walls of each anti-falling groove is more than or equal to 90 degrees, and the anti-falling grooves extend from one side face of the clamping arm to the other side face of the clamping arm.

Further, each anti-falling groove is provided with a junction line formed by two planes of the anti-falling walls, and an included angle formed between the junction line and the extension line of the clamping arm is an acute angle.

Further, a plurality of meshing teeth are formed on the clamping surface, at least part of the meshing teeth are different in height, and the meshing teeth and the anti-falling grooves are arranged at intervals.

Further, the anti-falling groove is a tooth groove for forming the meshing teeth.

Further, the engaging teeth have tooth top surfaces on which tooth top grooves are formed in a concave manner or on which embossments are formed.

Further, the arm lock and elastic connection portion integrated into one piece, be formed with the elastic channel between arm lock and the elastic connection portion, the arm lock still includes opposite to the surface that the clamping face set up, the elastic channel forms on the surface, be formed with on the elastic connection portion and draw the material hole.

Further, the clamp arm comprises a first clamp arm and a second clamp arm, and a buckling part extending towards the second clamp arm is formed on the free end of the first clamp arm.

Further, the ligating clip is a titanium clip.

Further, each clamping arm is provided with one bending part at the middle part, and the two clamping arms are arranged in a mirror image mode; or, at least one bending part is formed on one of the two clamping arms, and the other clamping arm is of a flat plate structure; or at least one bending part is formed on each clamping arm, and the bending directions of the bending parts on the two clamping arms are the same.

The invention has the beneficial effects that: the axial and radial anti-drop force is increased by arranging the anti-drop groove on the clamping surface, and the anti-drop groove is of a concave structure, so that the blood vessel can be prevented from being punctured while the anti-drop force is improved, and the safety of an operation is improved; through setting up the flexion, can make the vascular card in the flexion when the centre gripping blood vessel, compare with current structure, the slippage power is bigger, and makes at the centre gripping great vessel, can outwards move to both sides, can be fit for the blood vessel of different diameters, and little to the damage of blood vessel, can resist the vascular expansion power again greatly, has improved anti-leakage ability.

The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

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

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of the ligating clip of FIG. 1 in a closed configuration;

FIG. 4 is a schematic view showing the structure of a ligating clip according to another embodiment of the present invention;

FIG. 5 is a cross-sectional view of FIG. 4;

FIG. 6 is a schematic view of the ligating clip of FIG. 4 in a closed position;

FIG. 7 is a schematic view showing the structure of a ligating clip according to still another embodiment of the present invention;

FIG. 8 is a schematic view showing the structure of a ligating clip according to still another embodiment of the present invention;

fig. 9 is a schematic view illustrating a structure of a ligating clip according to still another embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

Referring to fig. 1 and 2, a ligating clip 10 according to a first embodiment of the present invention is exemplified by a titanium clip, and the ligating clip 10 includes two clip arms disposed opposite to each other, and an elastic connecting portion 11 connecting the two clip arms. The two clip arms are integrally formed with the elastic connection portion 11. The two arms are named first arm 12 and second arm 13, respectively. Each clamping arm comprises two oppositely disposed side surfaces 111, a clamping surface (not numbered) connecting the two side surfaces 111, and an outer surface 113 disposed opposite the clamping surface.

Each clip arm has an oppositely disposed free end 114 and a connecting end (not numbered) that connects with the resilient connecting portion 11. A locking structure is provided between the first arm 12 and the second arm 13, and in detail, a locking portion 14 extending toward the second arm 13 is formed on a free end 114 of the first arm 12, and a locking portion 15 engaged with the locking portion 14 is formed on the free end 114 of the second arm 13. Specifically, the holding portion 14 is a hook, and the fastening portion 15 is a hook groove, however, in other embodiments, only the holding portion 14 may be provided, and the holding portion 14 may be a fastener.

Each clamping surface is concavely provided with a plurality of anti-falling grooves 16. Each of the drop-preventing grooves 16 has two oppositely disposed drop-preventing walls 161. The angle between the two retaining walls 161 of each retaining groove 16 is greater than or equal to 90 deg., preferably between 100 deg. -140 deg.. The drop-off preventing groove 16 is formed to extend from one side 111 of the clip arm toward the other side 111. In this embodiment, both ends of the escape prevention groove 16 penetrate through the two side surfaces 111, respectively, and in other embodiments, the escape prevention groove 16 may not penetrate through the side surfaces 111. In this embodiment, each anti-disengagement slot 16 has a junction line formed by intersecting two anti-disengagement walls 161, that is, a junction line a formed by intersecting two anti-disengagement walls 161, and an included angle formed between the junction line a and an extension line X of the clip arm is an acute angle, and by overlapping the two designs (one of which is that the included angle between the two anti-disengagement walls 161 is equal to or greater than 90 ° and the other is that the included angle formed between the junction line a and the extension line X is an acute angle), the axial and radial anti-disengagement forces are increased. In this embodiment, all the intersecting lines a are disposed in parallel. Of course, in other embodiments, all of the intersecting lines a may be disposed perpendicular to the extension line X of the clip arm, or the intersecting lines a of part of the retaining wall 161 on each clip face may be disposed parallel or all of them may not be disposed parallel.

In order to increase the slipping force and leakage of the clamped blood vessel, a plurality of engaging teeth are formed on the clamping surface, and the engaging teeth are arranged at intervals with the anti-falling grooves 16, in this embodiment, the anti-falling grooves 16 are tooth grooves forming the engaging teeth. At least some of the teeth have different heights, in particular: the meshing teeth comprise first meshing teeth 171 and second meshing teeth 172 which are arranged at intervals, and the tooth height of the first meshing teeth 171 is larger than that of the second meshing teeth 172; in the respective positions of the two clamping arms, a first engagement tooth 171 is provided on one and a second engagement tooth 172 is provided on the other, namely: the first engagement teeth 171 on the first clamp arm 12 are disposed opposite the second engagement teeth 172 on the second clamp arm 13, and the second engagement teeth 172 on the first clamp arm 12 are disposed opposite the first engagement teeth 171 on the second clamp arm 13. In this embodiment, the tooth has a tooth top (not numbered), which is planar in this embodiment, but may be curved or uneven in other embodiments. Grooves 173 are concavely formed on the tooth top surface to increase vascular permeability, increase anti-slip force and leakage. Of course, in addition to the grooves 173 being formed on the tooth top surface, an embossment may be formed on the tooth top surface.

For example, the following two structures are adopted in the first embodiment: an elastic groove 18 is formed between the structure 1, the clamping arm and the elastic connecting part 11, and the elastic groove 18 is formed on the outer surface 113; the structure 2 and the elastic connecting part 11 are provided with a digging hole 19. Indeed, in other embodiments, only structure 1 or structure 2 may be employed.

Referring to fig. 3, when the ligation clip 10 of the first embodiment is closed, the elastic connection portion 11 is bent to fold, and the two clip arms move relatively until the hook of the first clip arm 12 is engaged with the free end 114 of the second clip arm, thereby clamping a blood vessel (not shown). When the first clamp arm 12 and the second clamp arm 13 clamp a blood vessel, the first engagement teeth 171 on the first clamp arm 12 are disposed opposite the second engagement teeth 172 on the second clamp arm 13, and the second engagement teeth 172 on the first clamp arm 12 are disposed opposite the first engagement teeth 171 on the second clamp arm 13.

Referring to fig. 4 and 5, the ligating clip 20 according to the second embodiment of the present invention includes two opposite clip arms 21 and an elastic connection portion 22 connecting the two clip arms 21, and each clip arm 21 includes two opposite side surfaces 211, a clip surface (not numbered) connecting the two side surfaces 211, and an outer surface 213 opposite to the clip surface. Each clip arm 21 is formed with a curved portion 214 protruding outward, and two clip arms 21 are mirror images of each other. In this embodiment, only one bending portion 214 is formed on each clip arm 21 to bulge outwards, and the bending portion 214 is located in the middle of the clip arm 21. In the first embodiment, a plurality of anti-falling grooves 26 and engaging teeth 27 are formed on each clamping surface in the second embodiment. But differs from the embodiment in that: the direction of the connecting line a of each anti-drop groove 26 at two sides of the bending part 214 is different, the anti-drop grooves 26 and the engaging teeth 27 at two sides of the bending part 214 are radially arranged along the central line Y of the bending part 214, the connecting lines a of the corresponding anti-drop grooves 26 on the two clamping surfaces are parallel, and the heights of the corresponding engaging teeth 27 are different. The retaining groove 26 and the engagement teeth 27 are not provided on the curved portion 214. Of course, in other embodiments, the drop-off prevention groove 26 and the engagement teeth 27 may be formed on the curved portion 214.

In addition to forming one bending portion 214 on each clip arm 21, in other embodiments, more than one bending portion may be raised outwardly on each clip arm, such as the ligature clip 30 shown in fig. 7 having three bending portions 314 raised outwardly, although in other embodiments, the bending portions may be bent inwardly, and the deformation may be as follows: at least one bending part is formed on one of the two clamping arms, the other clamping arm is of a flat plate structure, as shown in fig. 8, the ligating clamp 40 in the embodiment comprises a first clamping arm 401 and a second clamping arm 402, three bending parts 414 which bulge outwards are formed on the first clamping arm 401, and the second clamping arm 402 is of a flat plate structure; alternatively, at least one bending portion 214 is formed on each clip arm 21, and the bending directions of the bending portions 214 on both clip arms 21 are the same, and the ligating clip 50 shown in fig. 9 includes a first clip arm 501 and a second clip arm 502, which are the same in bending direction, i.e., the first clip arm 501 is formed with three outwardly bulging first bending portions 515 and the second clip arm 502 is formed with three inwardly bending second bending portions 516 corresponding to the first bending portions 515.

Referring to fig. 6, when the ligature clip 20 of the second embodiment is closed, the elastic connection portion 22 is bent to fold, and the two clip arms 21 clip a blood vessel (not shown), if the diameter of the blood vessel is larger than the clipping thickness of the two clip arms in the normal state, the bending portion 214 of the clip arms 21 can be stretched and deformed and moved to the outside due to the bending portion 214, so that the blood vessel with a larger diameter can be clipped.

The ligation clip 20 of the second embodiment may be provided with the elastic groove, the undercut hole, and the holding structure in the same manner as the first embodiment.

The ligating clips according to the first and second embodiments have the following effects:

1. the axial and radial anti-drop force is increased by arranging the anti-drop groove on the clamping surface, and the anti-drop groove is of a concave structure, so that the blood vessel can be prevented from being punctured while the anti-drop force is improved, and the safety of an operation is improved; the included angle between the symmetrical axis of the anti-falling wall and the extension line of the clamping arm is set to be an acute angle, so that the anti-falling force is further increased.

2. By forming the engaging teeth on the holding surface so as to increase the slipping force of the held blood vessel and to improve the leakage preventing capability, in particular, the engaging teeth are provided to be different in height (first engaging teeth and second engaging teeth of different heights), it is more advantageous to prevent slipping and leakage.

3. By forming grooves or embossments on the teeth, the vascular permeability is increased, the anti-slip force is increased, and the anti-leakage capability is improved.

4. By forming an elastic slot between the clip arms and the elastic connection, the clip force is reduced and the damping of the clip bounce is facilitated after the clip applier is released.

5. The clamping force is reduced by forming the digging hole on the elastic connecting part.

6. The retaining part is arranged to increase the anti-falling force of the clip.

7. Through setting up the flexion, can make the vascular card in the flexion when the centre gripping blood vessel, compare with current structure, the slippage power is bigger, and makes at the centre gripping great vessel, can outwards move to both sides, can be fit for the blood vessel of different diameters, and little to the damage of blood vessel, can resist the vascular expansion power again greatly, has improved anti-leakage ability.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. The utility model provides a ligature clip, includes two clamp arms that set up relatively and connect two the elastic connection portion of clamp arm, the clamp arm has two sides that set up in opposite directions and connects two the clamping surface of side, the indent is formed with a plurality of anticreep grooves on the clamping surface, at least one include more than two crooked bending parts of inwards bending or the crooked part of at least one outwards uplift on the clamp arm, and the bending part of clamp arm can be by tensile deformation and to the both ends removal of clamp arm for the length extension of clamp arm.

2. The ligating clip according to claim 1, wherein each of said retaining grooves has two opposing retaining walls, the angle between the two retaining walls of each retaining groove being greater than or equal to 90 °, said retaining grooves extending from one side of said clip arm toward the other side.

3. The ligating clip of claim 2, wherein each of said retaining grooves has an intersection line defined by a plane in which two of said retaining walls lie, said intersection line forming an acute angle with an extension line of said clip arm.

4. The ligating clip of any one of claims 1 to 3, wherein said gripping surface has a plurality of engagement teeth formed thereon, at least some of said engagement teeth being of different heights, said engagement teeth being spaced from said anti-slip groove.

5. The ligating clip of claim 4, wherein said anti-slip groove is a tooth socket forming said engagement tooth.

6. The ligating clip of claim 5, wherein the engaging tooth has a tooth top surface with a recess formed therein or an embossment formed thereon.

7. The ligating clip of claim 1, wherein the clip arm is integrally formed with the resilient connecting portion, wherein a resilient slot is formed between the clip arm and the resilient connecting portion, wherein the clip arm further comprises an outer surface disposed opposite the clip face, wherein the resilient slot is formed in the outer surface, and wherein the resilient connecting portion is formed with a scoop hole.

8. The ligating clip of claim 1, wherein the clip arms comprise a first clip arm and a second clip arm, the free end of the first clip arm having a catch formed thereon that extends toward the second clip arm.

9. The ligating clip of claim 8, wherein the ligating clip is a titanium clip.

10. The ligating clip of claim 7, wherein each of said clip arms is formed with at least one outwardly bulging said curved portion in a central portion, the configuration of both of said clip arms being mirrored; or, at least one bending part protruding outwards is formed on one clamping arm of the two clamping arms, and the other clamping arm is of a flat plate structure; or, at least one bending part protruding outwards is formed on one of the two clamping arms, and the bending direction of the bending part formed on the other clamping arm is the same as that of the bending part formed on the one clamping arm.