Ligation clip
Patent Information
- Application Number
- CN202520964199.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-05-16
AI Technical Summary
[0004]但是，目前现有的V型结扎夹的两个臂在闭合过程中，两个臂容易出现横向偏移的情况，从而导致闭合的效果较差，无法满足血管或组织夹闭的要求
[0009]本实用新型所述的结扎夹，手术过程中，为了止血，可以将血管夹持在第一弧形夹臂和第二弧形夹臂之间，通过将卡头卡接到卡钩上使结扎夹闭合，将血管牢固的夹持在第一弧形夹臂和第二弧形夹臂之间。为便于施夹钳之类的工具的操作，在第一弧形夹臂的自由端设置有卡钩夹持体，并且在第二弧形夹臂的自由端设置有卡头夹持体，卡钩夹持体和卡头夹持体可通过施夹钳之类的工具将卡钩夹持体和卡头夹持体夹持住，然后从第一弧形夹臂和第二弧形夹臂的外侧向内侧施加外力，使得卡钩和卡头彼此接近，最终将卡钩卡接在卡头上。为了避免第一弧形夹臂和第二弧形夹臂在合拢时发生横向偏移，在卡钩夹持体的两端分别设置有定位导向块，其中定位导向块可以引导第一弧形夹臂和第二弧形夹臂精准闭合，避免第一弧形夹臂和第二弧形夹臂发生错位，从而影响止血效果，同时第一弧形夹臂和第二弧形夹臂闭合后，定位导向块还能保证第二弧形夹臂相对第一弧形夹臂从横向上无法跑脱，即两个定位导向块可以对第二弧形夹臂起到限位作用。本实用新型的结扎夹，相较于相关技术，可以避免结扎夹的两个臂在闭合过程中出现横向偏移的情况，从而保证闭合效果，满足血管或组织夹闭的要求。另外，在两个定位导向块的导向作用下可以避免第一弧形夹臂与卡头夹持体发生碰撞，若二者发生硬接触容易将卡头夹持体撞断。
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Figure CN224655374U_ABST
Abstract
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, in existing V-shaped ligation clips, the two arms are prone to lateral displacement during the closure process, resulting in poor closure and failing to meet the requirements for vascular or tissue clamping. Moreover, if the two arms of the V-shaped ligation clip shift laterally during closure, the clamping head on one arm may collide with the other arm, potentially breaking the clamping head. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a ligation clip to reduce or avoid the lateral displacement of the two arms of the V-shaped ligation clip during the closing process.
[0006] This utility model provides a ligation clip, including: a first arc-shaped clamping arm and a second arc-shaped clamping arm, one end of the first arc-shaped clamping arm and one end of the second arc-shaped clamping arm are connected to form a V-shaped clamping body; 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; a hook holding body is provided at the free end of the first arc-shaped clamping arm, and a clamping head holding body is provided at the free end of the second arc-shaped clamping arm, the hook holding body and the clamping head holding body being configured for clamping contact with clamping forceps; the ligation clip also includes positioning guide blocks, two positioning guide blocks are symmetrically arranged on two laterally opposite sides of the first arc-shaped clamping arm, and are respectively connected to the two ends of the hook holding body, and the two positioning guide blocks extend out of the inner side of the first arc-shaped clamping arm along the direction close to the second arc-shaped clamping arm, the two positioning guide blocks being used to limit the lateral displacement of the second arc-shaped clamping arm relative to the first arc-shaped clamping arm.
[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] In the ligation clip described in this utility model, during surgery, to stop bleeding, the blood vessel can be clamped between the first and second arc-shaped clamp 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 clamp arms. To facilitate the operation of tools such as clamping pliers, a hook-holding body is provided at the free end of the first arc-shaped clamp arm, and a clip head-holding body is provided at the free end of the second arc-shaped clamp arm. The hook-holding body and the clip head-holding body can be clamped by tools such as clamping pliers. Then, external force is applied from the outside to the inside of the first and second arc-shaped clamp arms, bringing the hook and the clip head closer together, ultimately engaging the hook with the clip head. To prevent lateral displacement of the first and second arc-shaped clamping arms during closure, positioning guide blocks are provided at both ends of the clamping body. These guide blocks guide the first and second arc-shaped clamping arms to close precisely, preventing misalignment that could affect hemostasis. Furthermore, after closure, the guide blocks ensure the second arc-shaped clamping arm cannot laterally slip away from the first, effectively limiting its position. Compared to related technologies, this ligation clip prevents lateral displacement of the two arms during closure, ensuring a secure closure and meeting the requirements for vascular or tissue clamping. Additionally, the guidance of the two guide blocks prevents collision between the first arc-shaped clamping arm and the clamping body, which could easily break the clamping body if they make direct contact.
[0010] Optionally, the end faces of the two positioning guide blocks facing each other are respectively provided with chamfers near the edge of the second arc-shaped clamping arm.
[0011] Optionally, the inner side of the hook has a hook plane, and the side of the card head opposite to the hook has a card head plane for fitting with the hook plane.
[0012] Optionally, the hook plane is provided with a first anti-slip step, and the head plane is provided with a second anti-slip step for engaging with the first anti-slip step.
[0013] Optionally, the inner side of the first arc-shaped clamping arm facing the second arc-shaped clamping arm is provided with a plurality of first anti-slip teeth arranged at intervals along the length direction of the first arc-shaped clamping arm.
[0014] Optionally, the second arc-shaped clamping arm is provided with a plurality of second anti-slip teeth arranged at intervals along the length direction of the second arc-shaped clamping arm on the inner side facing the first arc-shaped clamping arm.
[0015] Optionally, when the first arc-shaped clamping arm and the second arc-shaped clamping arm are closed, the plurality of first anti-slip teeth and the plurality of second anti-slip teeth are misaligned with each other.
[0016] 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 includes an inner arc body and an outer arc body, which are spaced apart. The two ends of the inner arc body are respectively connected to the inner surfaces of the first arc-shaped clamping arm and the second arc-shaped clamping arm, and the two ends of the outer arc body are respectively connected to the outer surfaces of the first arc-shaped clamping arm and the second arc-shaped clamping arm.
[0017] Optionally, the hook clamping body is a cylindrical structure that extends through two laterally opposite sides of the first arc-shaped clamping arm.
[0018] Optionally, the clamping body includes two cylindrical platforms symmetrically arranged on two laterally opposite sides of the second arc-shaped clamping arm, and reinforcing ribs are provided between the cylindrical platforms and the side walls 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. Hook clamping body; 13. First anti-slip step; 14. First anti-slip tooth; 2. Second arc-shaped clamping arm; 21. Clamp head; 22. Clamp head clamping body; 23. Second anti-slip step; 24. Second anti-slip tooth; 25. Reinforcing rib; 3. Guide block; 31. Chamfer; 4. Clamping arm connecting arc; 41. Inner arc body; 42. Outer arc body. 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 is connected to one end of the second arc-shaped clamping arm 2 to form a V-shaped clamping body. 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 is used to engage with the clamping head 21. A hook holding body 12 is provided at the free end of the first arc-shaped clamping arm 1, and a clamping head holding body 22 is provided at the free end of the second arc-shaped clamping arm 2. The holder 12 and the clip holder 22 are configured for clamping contact with the clamping forceps; the ligation clip also includes positioning guide blocks 3, two positioning guide blocks 3 are symmetrically arranged on two laterally opposite sides of the first arc-shaped clamping arm 1, and are respectively connected to both ends of the clip holder 12, and the two positioning guide blocks 3 extend out of the inner side of the first arc-shaped clamping arm 1 along the direction close to the second arc-shaped clamping arm 2, and the two positioning guide blocks 3 are used to limit the lateral displacement of the second arc-shaped clamping arm 2 relative to the first arc-shaped clamping arm 1.
[0028] In this embodiment, in conjunction with the appendix Figure 1 and attachedFigure 2 As shown, during the operation, to stop bleeding, the blood vessel (not shown in the figure) can be clamped between the first arc-shaped clamp arm 1 and the second arc-shaped clamp arm 2. The ligation clamp is closed by engaging the clasp head 21 with the hook 11, firmly clamping the blood vessel between the first arc-shaped clamp arm 1 and the second arc-shaped clamp arm 2. To facilitate the operation of tools such as clamping forceps, a hook clamping body 12 is provided at the free end of the first arc-shaped clamp arm 1, and a clasp head clamping body 22 is provided at the free end of the second arc-shaped clamp arm 2. The hook clamping body 12 and the clasp head clamping body 22 can cooperate with the clamping end of the tool such as clamping forceps. The clamping forceps can clamp the hook clamping body 12 and the clasp head clamping body 22, and then apply external force from the outside to the inside of the first arc-shaped clamp arm 1 and the second arc-shaped clamp arm 2, so that the hook 11 and the clasp head 21 come closer to each other, and finally the hook 11 is engaged with the clasp head 21. To prevent lateral displacement of the first arc-shaped clamp arm 1 and the second arc-shaped clamp arm 2 during closure, positioning guide blocks 3 are respectively provided at both ends of the clamping body 12. The two positioning guide blocks 3 can guide the movement of the second arc-shaped clamp arm 2 towards the first arc-shaped clamp arm 1 from opposite sides of the first arc-shaped clamp arm 1, thereby guiding the precise closure of the first arc-shaped clamp arm 1 and the second arc-shaped clamp arm 2 and preventing relative misalignment of the first arc-shaped clamp arm 1 and the second arc-shaped clamp arm 2 in the lateral direction, which would affect the hemostatic effect. Simultaneously, after the first arc-shaped clamp arm 1 and the second arc-shaped clamp arm 2 are closed, the two positioning guide blocks 3 can also limit the second arc-shaped clamp arm 2 from opposite sides of the first arc-shaped clamp arm 1, ensuring that the second arc-shaped clamp arm 2 cannot escape laterally relative to the first arc-shaped clamp arm 1. In other words, the two positioning guide blocks 3 can limit the movement of the second arc-shaped clamp arm 2. Compared with related technologies, the ligation clip of this utility model can avoid lateral displacement of the two arms of the ligation clip during the closure process, thereby ensuring the closure effect and meeting the requirements for vascular or tissue clamping. In addition, the guidance of the two positioning guide blocks 3 can prevent the first arc-shaped clamping arm 1 from colliding with the clamping body 22. If the two make hard contact, the clamping body 22 will easily break.
[0029] Optionally, the end faces of the two positioning guide blocks 3 facing each other are respectively provided with chamfers 31 near the edge of the second arc-shaped clamping arm 2.
[0030] In this embodiment, in conjunction with the appendix Figure 2 As shown, chamfers 31 are provided on the end faces of the two positioning guide blocks 3 facing each other. During the closing process of the second arc-shaped clamping arm 2 and the first arc-shaped clamping arm 1, the chamfers 31 can contact the second arc-shaped clamping arm 2 to guide the second arc-shaped clamping arm 2 between the two positioning guide blocks 3, thereby ensuring the accurate closing of the second arc-shaped clamping arm 2 and the first arc-shaped clamping arm 1.
[0031] Optionally, the inner side of the hook 11 has a hook plane, and the side of the head 21 opposite to the hook 11 has a head plane for fitting with the hook plane.
[0032] In this embodiment, in conjunction with the appendix Figure 1 and attached Figure 2 As shown, in order to provide better closing force and make the ligation clip closure more reliable, there is a hook plane on the inner side of the hook 11, and a clip head plane on the side opposite to the hook 11 for fitting with the hook plane. When the clip head 21 and the hook 11 are engaged together, the inner side of the hook 11 and the outer side of the clip head 21 come into contact with each other, so that the hook plane and the clip head plane can fit together, providing a larger contact area, which makes it less likely for the ligation clip to slip after closure and improves the reliability of closure.
[0033] 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.
[0034] Optionally, the hook plane is provided with a first anti-slip step 13, and the head plane is provided with a second anti-slip step 23 for engaging with the first anti-slip step 13.
[0035] In this embodiment, in conjunction with the appendix Figure 1 and attached Figure 2 As shown, in order to ensure more reliable closure of the ligation clip, a first anti-slip step 13 is provided on the hook plane, and a second anti-slip step 23 is provided on the head plane. The second anti-slip step 23 can be interlocked with the first anti-slip step 13, thereby ensuring that the ligation clip is not easy to slip off after closure and improving the reliability of closure.
[0036] Optionally, the first arc-shaped clamping arm 1 is provided with a plurality of first anti-slip teeth 14 arranged at intervals along the length direction of the first arc-shaped clamping arm 1 on the inner side facing the second arc-shaped clamping arm 2.
[0037] The second arc-shaped clamping arm 2 is provided with a plurality of second anti-slip teeth 24 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.
[0038] When the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 are closed, the plurality of first anti-slip teeth 14 and the plurality of second anti-slip teeth 24 are misaligned with each other.
[0039] In this embodiment, in conjunction with the appendix Figure 1 and attached Figure 2As shown, the inner sides of the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 respectively have multiple rows of staggered anti-slip teeth (first anti-slip teeth 14 and second anti-slip teeth 24). For example, the inner side of the first arc-shaped clamping arm 1 can be provided with three rows of staggered first anti-slip teeth 14, and the inner side of the second arc-shaped clamping arm 2 can be provided with two rows of staggered second anti-slip teeth 24. The staggered anti-slip teeth can firmly clamp the blood vessels and prevent them from slipping.
[0040] Optionally, the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 are connected by a clamping arm connecting arc 4. The clamping arm connecting arc 4 includes an inner arc body 41 and an outer arc body 42. The inner arc body 41 and the outer arc body 42 are spaced apart. The two ends of the inner arc body 41 are respectively connected to the inner surfaces of the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2, and the two ends of the outer arc body 42 are respectively connected to the outer surfaces of the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2.
[0041] In this embodiment, in conjunction with the appendix Figure 1 Figure 2 Figure 1 As shown, the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 are connected by a clamping arm connecting arc 4 to form a V-shaped clamp. During the closing process, the inner arc 41 and the outer arc 42 of the first arc-shaped clamping arm 1 and the second arc-shaped clamping arm 2 will deform and tend to return to their original shape. The thickness of the outer arc 42 can be designed to be greater than the thickness of the inner arc 41 to ensure the rebound force of the clamp opening.
[0042] Optionally, the hook clamping body 12 is a cylindrical structure that extends through two laterally opposite sides of the first arc-shaped clamping arm 1.
[0043] Optionally, the clamping body 22 includes two cylindrical platforms symmetrically arranged on two laterally opposite sides of the second arc-shaped clamping arm 2, and a reinforcing rib 25 is provided between the cylindrical platforms and the side wall of the second arc-shaped clamping arm 2.
[0044] In this embodiment, the card holder 22 is in the shape of a cylindrical platform, and a reinforcing rib 25 is provided between the cylindrical platform and the side wall of the second arc-shaped clamping arm 2. The reinforcing rib 25 plays a role in strengthening the structural strength of the card holder 22 and ensuring that the card holder 22 does not break during the closing process.
[0045] 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.
[0046] 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), wherein one end of the first arc-shaped clamping arm (1) is connected to one end of the second arc-shaped clamping arm (2) to form a V-shaped clamping body; 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), wherein the hook (11) is used to engage with the clamp head (21); a hook clamping body (12) is provided at the free end of the first arc-shaped clamping arm (1), and a clamp head clamping body (22) is provided at the free end of the second arc-shaped clamping arm (2), wherein the hook clamping body (12) and the clamp head clamping body (22) are connected to each other. The card holder (22) is configured to be used for clamping contact with the clamping forceps; the ligation clip also includes positioning guide blocks (3), two positioning guide blocks (3) are symmetrically arranged on two laterally opposite sides of the first arc-shaped clamping arm (1), and are respectively connected to both ends of the card holder (12), and the two positioning guide blocks (3) extend out of the inner side of the first arc-shaped clamping arm (1) in the direction close to the second arc-shaped clamping arm (2), and the two positioning guide blocks (3) are used to limit the lateral displacement of the second arc-shaped clamping arm (2) relative to the first arc-shaped clamping arm (1).
2. The ligation clip according to claim 1, characterized in that, The two positioning guide blocks (3) have chamfers (31) on their end faces facing each other near the edge of the second arc-shaped clamping arm (2).
3. The ligation clip according to claim 1, characterized in that, The hook has a hook plane on its inner side, and the head has a head plane on its side opposite to the hook for fitting with the hook plane.
4. The ligation clip according to claim 3, characterized in that, The hook plane is provided with a first anti-slip step (13), and the head plane is provided with a second anti-slip step (23) for engaging with the first anti-slip step (13).
5. The ligation clip according to claim 1, characterized in that, The first arc-shaped clamping arm (1) is provided with a plurality of first anti-slip teeth (14) arranged at intervals along the length direction of the first arc-shaped clamping arm (1) on the inner side facing the second arc-shaped clamping arm (2).
6. The ligation clip according to claim 5, characterized in that, The second arc-shaped clamping arm (2) is provided with a plurality of second anti-slip teeth (24) 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).
7. The ligation clip according to claim 6, characterized in that, When the first arc-shaped clamping arm (1) and the second arc-shaped clamping arm (2) are closed, the first anti-slip teeth (14) and the second anti-slip teeth (24) are misaligned with each other.
8. 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 (4). The clamping arm connecting arc (4) includes an inner arc body (41) and an outer arc body (42). The inner arc body (41) and the outer arc body (42) are spaced apart. The two ends of the inner arc body (41) are respectively connected to the inner surfaces of the first arc-shaped clamping arm (1) and the second arc-shaped clamping arm (2). The two ends of the outer arc body (42) are respectively connected to the outer surfaces of the first arc-shaped clamping arm (1) and the second arc-shaped clamping arm (2).
9. The ligation clip according to claim 1, characterized in that, The hook clamp (12) is a cylindrical structure that runs through the two laterally opposite sides of the first arc-shaped clamp arm (1).
10. The ligation clip according to claim 1, characterized in that, The clamping body (22) includes two cylindrical platforms symmetrically arranged on two laterally opposite sides of the second arc-shaped clamping arm (2), and a reinforcing rib (25) is provided between the cylindrical platform and the side wall of the second arc-shaped clamping arm (2).