Ligation clip

Abstract

The utility model provides a kind of ligature clamp, it is related to medical instrument technical field, ligature clamp includes first arc clamping arm and second arc clamping arm, one end of the first arc clamping arm is connected with one end of the second arc clamping arm;The free end of the first arc clamping arm is provided with a hook, the free end of the second arc clamping arm is provided with a clamp head, the hook is used for with the clamp head joint, the inside of the hook has a hook plane, the side of the clamp head away from the hook has a clamp head plane for with the hook plane fit;The hook plane has a limit post, the clamp head plane is provided with the cooperation hole that is compatible with the shape of the limit post, the limit post is used for inserting in the cooperation hole.The utility model's ligature clamp, compared to prior art, can guarantee that the two arms of ligature clamp can be effectively locked after closing, avoid running off.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a ligation clip. Background Technology

[0002] V-shaped ligation clips are common surgical medical instruments, primarily used to clamp blood vessels or other tubular tissues to achieve hemostasis or block the lumen. A V-shaped ligation clip typically consists of two symmetrical arms, one end of which is joined to form a V shape, while the other end is a free end used to clamp the tissue. Common materials for V-shaped ligation clips include metals (such as titanium alloys), biodegradable materials (such as poly(p-dioxanone), polylactic acid, and polyglycolic acid), and non-absorbable materials (such as POM plastic).

[0003] In use, the doctor opens the two arms of the V-shaped ligation clip using a surgical instrument (such as a clip clamp) and places it on the blood vessel or tissue that needs to be clamped. Then, the clip clamp applies pressure to close the two arms of the ligation clip, thereby clamping the blood vessel or tissue.

[0004] However, the two arms of the existing V-shaped ligation clip cannot be effectively locked after closing, which can lead to slippage. Utility Model Content

[0005] The problem this invention aims to solve is: how to provide a ligation clip that can effectively lock in place.

[0006] This utility model provides a ligation clip, comprising: a first arc-shaped clamping arm and a second arc-shaped clamping arm, one end of the first arc-shaped clamping arm being connected to one end of the second arc-shaped clamping arm; a hook is provided at the free end of the first arc-shaped clamping arm, and a clamping head is provided at the free end of the second arc-shaped clamping arm, the hook being used to engage with the clamping head; the inner side of the hook has a hook plane, and the side of the clamping head opposite to the hook has a clamping head plane for fitting against the hook plane; a limiting post is provided on the hook plane, and a mating hole adapted to the shape of the limiting post is provided on the clamping head plane, the limiting post being used to be inserted into the mating hole.

[0007] The ligation clip provided by this utility model, compared with the prior art, has, but is not limited to, the following advantages:

[0008] Beneficial effects:

[0009] The ligation clip of this invention, when not in use, consists of a V-shaped clip formed by connecting one end of a first arc-shaped clamping arm and one end of a second arc-shaped clamping arm. During surgery, to stop bleeding, the blood vessel can be clamped between the first and second arc-shaped clamping arms. The ligation clip is closed by engaging the clip head with the hook, firmly clamping the blood vessel between the first and second arc-shaped clamping arms. To provide better closing force and make the ligation clip closure more reliable, a hook plane is provided on the inner side of the hook, and a clip head plane is provided on the side of the clip head opposite the hook for contact with the hook plane. When the clip head and hook are engaged, the inner side of the hook and the outer side of the clip head contact each other, allowing the hook plane and the clip head plane to fit together, providing a larger contact area. This makes the ligation clip less prone to slippage after closure, improving the reliability of the closure. Furthermore, to ensure effective locking of the first and second arc-shaped clamping arms after closure, a limiting post is provided on the hook plane, and a matching hole adapted to the shape of the limiting post is provided on the clamp head plane. While the hook plane and clamp head plane are in contact with each other, the limiting post can be inserted into the matching hole, ensuring that the first and second arc-shaped clamping arms will not slip off after closure. Compared with related technologies, the ligation clip of this invention can ensure that the two arms of the ligation clip can be effectively locked after closure, preventing slippage.

[0010] Optionally, the card head is provided with an arched anti-bullet-opening structure, the two ends of the arched anti-bullet-opening structure are respectively located on both sides of the horizontal plane of the card head, the arched anti-bullet-opening structure and the plane of the card head form an accommodating space, the accommodating space is configured to allow the card hook to extend into it, and the inner wall of the arched anti-bullet-opening structure is used to abut and limit the card hook.

[0011] Optionally, the card head is provided with a guide groove, which is used to contact the card hook and guide the card hook to extend into the receiving space so as to insert the limiting post into the mating hole.

[0012] Optionally, the inner side of the first arc-shaped clamping arm facing the second arc-shaped clamping arm is provided with a longitudinally elongated anti-slip tooth arranged along the length direction of the first arc-shaped clamping arm; the inner side of the second arc-shaped clamping arm facing the first arc-shaped clamping arm is provided with a plurality of transverse anti-slip teeth arranged at intervals along the length direction of the second arc-shaped clamping arm; when the first arc-shaped clamping arm and the second arc-shaped clamping arm are closed, the plurality of transverse anti-slip teeth and the longitudinally elongated anti-slip tooth are misaligned with each other.

[0013] Optionally, the second arc-shaped clamping arm has an anti-slip groove on its inner side facing the first arc-shaped clamping arm, which is adapted to the shape of the longitudinal strip-shaped anti-slip teeth, and the longitudinal strip-shaped anti-slip teeth are used to be embedded in the anti-slip groove.

[0014] Optionally, the first arc-shaped clamping arm and the second arc-shaped clamping arm are connected by a clamping arm connecting arc, the clamping arm connecting arc being an integral structure, and an arc groove for arc transition connection is provided on the inner side of the clamping arm connecting arc.

[0015] Optionally, the free end of the first arc-shaped clamping arm is provided with a hook holding body, which is configured to be used for clamping contact by the clamping pliers.

[0016] Optionally, the hook clamping body is a cylindrical structure that extends through two laterally opposite sides of the first arc-shaped clamping arm.

[0017] Optionally, the free end of the second arc-shaped clamping arm is provided with a clamping head holding body, which is configured to be used for clamping contact by the clamping pliers.

[0018] Optionally, the clamping body is a cylindrical structure that extends through two laterally opposite sides of the second arc-shaped clamping arm. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the ligation clip according to an embodiment of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the ligation clip according to an embodiment of the present invention. Figure 2 .

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. First arc-shaped clamping arm; 11. Hook; 12. Limiting post; 13. Hook clamping body; 14. Longitudinal strip-shaped anti-slip teeth; 2. Second arc-shaped clamping arm; 21. Clamping head; 22. Mating hole; 23. Arched anti-bullet opening structure; 24. Guide groove; 25. Clamping head clamping body; 26. Transverse anti-slip teeth; 27. Anti-slip groove; 3. Clamping arm connecting arc; 31. Arc groove. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] In the description of this utility model, the orientation or positional relationship indicated by terms such as "up", "down", "left", "right", "top", "bottom", "front", "back", "inner" and "outer" is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this utility model and is not intended to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0027] like Figures 1 to 2 As shown, the ligation clip of this utility model embodiment includes: a first arc-shaped clamping arm 1 and a second arc-shaped clamping arm 2, one end of the first arc-shaped clamping arm 1 being connected to one end of the second arc-shaped clamping arm 2; a hook 11 is provided at the free end of the first arc-shaped clamping arm 1, and a clamping head 21 is provided at the free end of the second arc-shaped clamping arm 2, the hook 11 being used to engage with the clamping head 21; the hook 11 has a hook plane on its inner side, and the clamping head 21 has a clamping head plane on its side away from the hook 11 for fitting with the hook plane; a limiting post 12 is provided on the hook plane, and a mating hole 22 adapted to the shape of the limiting post 12 is provided on the clamping head plane, the limiting post 12 being used to be inserted into the mating hole 22.

[0028] In this embodiment, in conjunction with the appendix Figure 1 and attached Figure 2As shown, when not in use, a V-shaped clamp is formed by connecting one end of the first arc-shaped clamp arm 1 and the second arc-shaped clamp arm 2. During surgery, to stop bleeding, the blood vessel (not shown) can be clamped between the first arc-shaped clamp arm 1 and the second arc-shaped clamp arm 2. The ligation clip is closed by engaging the clip head 21 with the clip hook 11, firmly clamping the blood vessel between the first arc-shaped clamp arm 1 and the second arc-shaped clamp arm 2. To provide better closing force and make the ligation clip closure more reliable, a clip hook plane is provided on the inner side of the clip hook 11, and a clip head plane is provided on the side of the clip head 21 facing away from the clip hook 11 for engaging with the clip hook plane. When the clip head 21 and the clip hook 11 are engaged together, the inner side of the clip hook 11 and the outer side of the clip head 21 contact each other, allowing the clip hook plane and the clip head plane to engage with each other, providing a larger contact area. This makes it less likely for the ligation clip to slip after closure, improving the reliability of the closure. Furthermore, to ensure effective locking of the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 after closure, a limiting post 12 is provided on the hook plane, and a matching hole 22 adapted to the shape of the limiting post 12 is provided on the clamping head plane. While the hook plane and the clamping head plane are in contact with each other, the limiting post 12 can be inserted into the matching hole 22, ensuring that the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 will not slip off after closure. Compared with related technologies, the ligation clip of this utility model can ensure that the two arms of the ligation clip can be effectively locked after closure, preventing slippage.

[0029] It should be noted that both the hook plane and the head plane are approximately planar in shape, because the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 are both arc-shaped. However, the curvature of the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 gradually decreases near the hook plane and the head plane, making the hook plane and the head plane resemble planar shapes.

[0030] Optionally, the card head 21 is provided with an arched anti-bullet opening structure 23. The two ends of the arched anti-bullet opening structure 23 are respectively located on both sides of the horizontal plane of the card head. The arched anti-bullet opening structure 23 and the card head plane form an accommodating space. The accommodating space is configured to allow the card hook 11 to extend into it, and the inner wall of the arched anti-bullet opening structure 23 is used to abut and limit the card hook 11.

[0031] In this embodiment, in conjunction with the appendix Figure 2As shown, an arched bulletproof structure 23 is provided on the clamp head 21. The arched bulletproof structure 23 is an arch column structure with a U-shaped cross section. The two ends of the arched bulletproof structure 23 are located on both sides of the horizontal plane of the clamp head. Thus, the arched bulletproof structure 23 and the clamp head plane together form an accommodating space. This accommodating space is configured to allow the clamp hook 11 to extend into it. After the clamp hook 11 extends into the accommodating space, it will abut against and limit the inner wall of the arched bulletproof structure 23. After the first arc-shaped clamp arm 1 and the second arc-shaped clamp arm 2 are closed, the arched bulletproof structure 23 locks the clamp hook 11, forming a wrapping limit, further ensuring that the ligation clamp cannot escape.

[0032] Optionally, the card head 21 is provided with a guide groove 24, which is used to contact the card hook 11 and guide the card hook 11 into the receiving space so as to insert the limiting post 12 into the mating hole 22.

[0033] In this embodiment, in conjunction with the appendix Figure 2 As shown, a guide groove 24 is provided on the card head 21. The guide groove 24 is used to contact the card hook 11 and guide the card hook 11 into the receiving space, so as to smoothly insert the limiting post 12 into the mating hole 22.

[0034] Optionally, the first arc-shaped clamping arm 1 is provided with a longitudinally elongated anti-slip tooth 14 arranged along the length direction of the first arc-shaped clamping arm 1 on the inner side facing the second arc-shaped clamping arm 2; the second arc-shaped clamping arm 2 is provided with a plurality of transverse anti-slip teeth 26 arranged at intervals along the length direction of the second arc-shaped clamping arm 2 on the inner side facing the first arc-shaped clamping arm 1; when the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 are closed, the plurality of transverse anti-slip teeth 26 and the longitudinally elongated anti-slip tooth 14 are misaligned with each other.

[0035] In this embodiment, in conjunction with the appendix Figure 1 and attached Figure 2 As shown, the inner side of the first arc-shaped clamping arm 1 facing the second arc-shaped clamping arm 2 has a longitudinal elongated anti-slip tooth 14, and the inner side of the second arc-shaped clamping arm 2 facing the first arc-shaped clamping arm 1 has multiple rows of staggered transverse anti-slip teeth 26. When the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 are closed, the multiple transverse anti-slip teeth 26 and the longitudinal elongated anti-slip teeth 14 are staggered with each other. The staggered anti-slip teeth can firmly clamp the blood vessel and prevent the blood vessel from slipping.

[0036] Optionally, the second arc-shaped clamping arm 2 is provided with an anti-slip groove 27 on the inner side of the first arc-shaped clamping arm 1, which is adapted to the shape of the longitudinal elongated anti-slip teeth 14, and the longitudinal elongated anti-slip teeth 14 are used to be embedded in the anti-slip groove 27.

[0037] In this embodiment, in conjunction with the appendix Figure 1 and attachedFigure 2 As shown, after the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 are closed, the longitudinal strip-shaped anti-slip teeth 14 can be embedded in the anti-slip groove 27, and the blood vessel after clamping presents a wave-like folded state, which can more effectively stop bleeding.

[0038] Optionally, the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 are connected by a clamping arm connecting arc 3, which is an integral structure, and the inner side of the clamping arm connecting arc 3 is provided with an arc groove 31 for arc transition connection.

[0039] In this embodiment, in conjunction with the appendix Figure 1 As shown, the connecting arc 3 of the clamp arm is an integral structure. Compared with the prior art, it does not have crescent-shaped holes, which avoids the problem of weakening the structural strength of the material and making it prone to breakage. In order to avoid the problem of insufficient deformation and expansion space due to the lack of holes, an arc groove 31 with arc transition connection is provided on the inner side of the connecting arc 3 of the clamp arm. This provides sufficient expansion and expansion space for the material to be squeezed and deformed. The first arc-shaped clamp arm 1 and the second arc-shaped clamp arm 2 can achieve a perfect fit without forming gaps, or the closing gap is small enough to ensure the clamping force of the ligation clip on the tissue.

[0040] Optionally, the free end of the first arc-shaped clamping arm 1 is provided with a hook-holding body 13, which is configured for clamping contact by the clamping pliers. The hook-holding body 13 is a cylindrical structure extending through two laterally opposite sides of the first arc-shaped clamping arm 1. The free end of the second arc-shaped clamping arm 2 is provided with a clamp head holding body 25, which is configured for clamping contact by the clamping pliers. The clamp head holding body 25 is a cylindrical structure extending through two laterally opposite sides of the second arc-shaped clamping arm 2.

[0041] In this embodiment, in conjunction with the appendix Figure 1 and attached Figure 2 Figure 2 As shown, to facilitate the operation of tools such as clamps, a hook holding body 13 is provided at the free end of the first arc-shaped clamping arm 1, and a chuck holding body 25 is provided at the free end of the second arc-shaped clamping arm 2. The hook holding body 13 and the chuck holding body 25 can cooperate with the clamping end of the tool such as clamps. The clamps can clamp the hook holding body 13 and the chuck holding body 25, and then apply external force from the outside to the inside of the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2, so that the hook 11 and the chuck 21 approach each other, and finally the hook 11 is engaged with the chuck 21. Moreover, both the hook clamp 13 and the clamp head clamp 25 are cylindrical structures that penetrate the two laterally opposite sides of the first arc-shaped clamp arm 1 and the second arc-shaped clamp arm 2, ensuring the connection strength between the hook clamp 13 and the clamp head clamp 25 and the clamping forceps, effectively improving the problem of breakage of the hook clamp 13 and the clamp head clamp 25 when taking off and closing the clamp during clinical use.

[0042] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0043] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A ligation clip, characterized in that, include: A first arc-shaped clamping arm (1) and a second arc-shaped clamping arm (2), one end of the first arc-shaped clamping arm (1) being connected to one end of the second arc-shaped clamping arm (2); a hook (11) is provided at the free end of the first arc-shaped clamping arm (1), and a clamp head (21) is provided at the free end of the second arc-shaped clamping arm (2), the hook (11) being used to engage with the clamp head (21); the hook (11) has a hook plane on its inner side, and the clamp head (21) has a clamp head plane on its side away from the hook (11) for engaging with the hook plane; a limiting post is provided on the hook plane ( 12), the card head plane is provided with a mating hole (22) that matches the shape of the limiting post (12), the limiting post (12) is used to be inserted into the mating hole (22); the card head (21) is provided with an arched anti-bullet opening structure (23), the two ends of the arched anti-bullet opening structure (23) are respectively located on both sides of the horizontal direction of the card head plane, the arched anti-bullet opening structure (23) and the card head plane form an accommodating space, the accommodating space is configured to allow the hook (11) to extend into, and the inner wall of the arched anti-bullet opening structure (23) is used to abut and limit the hook (11).

2. The ligation clip according to claim 1, characterized in that, The card head (21) is provided with a guide groove (24), which is used to contact the card hook (11) and guide the card hook (11) to extend into the accommodating space so as to insert the limiting post (12) into the mating hole (22).

3. The ligation clip according to claim 1, characterized in that, The first arc-shaped clamping arm (1) is provided with a longitudinal strip-shaped anti-slip tooth (14) arranged along the length direction of the first arc-shaped clamping arm (1) on the inner side facing the second arc-shaped clamping arm (2); the second arc-shaped clamping arm (2) is provided with a plurality of transverse anti-slip teeth (26) arranged at intervals along the length direction of the second arc-shaped clamping arm (2) on the inner side facing the first arc-shaped clamping arm (1); when the first arc-shaped clamping arm (1) and the second arc-shaped clamping arm (2) are closed, the plurality of transverse anti-slip teeth (26) and the longitudinal strip-shaped anti-slip teeth (14) are misaligned with each other.

4. The ligation clip according to claim 3, characterized in that, The second arc-shaped clamping arm (2) has an anti-slip groove (27) that is adapted to the shape of the longitudinal strip anti-slip teeth (14) on the inner side facing the first arc-shaped clamping arm (1), and the longitudinal strip anti-slip teeth (14) are used to be embedded in the anti-slip groove (27).

5. The ligation clip according to claim 1, characterized in that, The first arc-shaped clamping arm (1) and the second arc-shaped clamping arm (2) are connected by a clamping arm connecting arc (3). The clamping arm connecting arc (3) is an integral structure. The inner side of the clamping arm connecting arc (3) is provided with an arc groove (31) for arc transition connection.

6. The ligation clip according to claim 1, characterized in that, The free end of the first arc-shaped clamping arm (1) is provided with a hook clamping body (13), which is configured to be used for clamping contact of the clamping pliers.

7. The ligation clip according to claim 6, characterized in that, The hook clamp (13) is a cylindrical structure that runs through the two laterally opposite sides of the first arc-shaped clamp arm (1).

8. The ligation clip according to claim 1, characterized in that, The free end of the second arc-shaped clamping arm (2) is provided with a clamping head holding body (25), which is configured to be used for clamping contact of the clamping pliers.

9. The ligation clip according to claim 8, characterized in that, The clamping body (25) is a cylindrical structure that runs through the two laterally opposite sides of the second arc-shaped clamping arm (2).

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