Ligation clip

Abstract

The utility model provides a ligation clip, and aims to solve the technical problem that the stability of the whole structure is reduced due to poor strength of the conventional ligation clip. The ligation clip comprises a ligation clip body, a first clip arm and a second clip arm, wherein the first clip arm and the second clip arm are connected in a V shape; wherein a hook part is arranged at the end part of the first clamping arm; a groove is formed in the inner side of the hook part; a supporting block is arranged in the groove; and the end part of the second clamping arm is provided with a fitting part matched with the hook part. The supporting blocks are additionally arranged in the grooves in the inner sides of the hook parts, and the strength and stability of the hook parts can be enhanced through supporting provided by the supporting blocks. Specifically, when the clip applier clamps the clip applying column and the clamping piece and applies external force from the outer side to the inner side to enable the hook part to be clamped to the attaching part, the supporting block can disperse or transfer the external force, the hook part can be enhanced to the maximum extent, and the overall stability of the ligation clip is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a ligation clip. Background Art

[0002] Ligation clips are small and light. After ligation, they are not easy to block the surgical field of view and are not easy to cause tissue damage due to movement. Therefore, ligation clips are widely used in surgical operations. The design of ligation clips mainly focuses on the stability of clamping and the convenience of operation. When the ligation clip is used, it is applied by a clamp applicator. The cut at the end of the clamp arm is the key part of the force. The current ligation clip has poor strength, which will lead to a decrease in the stability of the overall structure and pose a safety hazard. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a ligation clip, which solves the technical problem that the existing ligation clip has poor strength and leads to reduced stability of the overall structure.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A ligation clamp comprises: a ligation clamp body, comprising a first clamp arm and a second clamp arm connected in a V-shape; a hook portion is provided at the end of the first clamp arm; a groove is formed inside the hook portion; a support block matched with the groove is provided in the groove; and a fitting portion matched with the hook portion is provided at the end of the second clamp arm.

[0006] The utility model can enhance the strength and stability of the hook portion by adding a support block in the groove inside the hook portion and providing support through the support block. Specifically, when the clip applicator clamps the clip applicator column and the clamping member and applies external force from the outside to the inside to make the hook portion clamp to the fitting portion, the support block can disperse or transfer the external force, maximize the reinforcing effect on the hook portion, and enhance the overall stability of the ligation clip.

[0007] Optionally, the hook portion includes a bending section, a connecting section and a cutting section which are connected in sequence, a groove is formed inside the bending section, the connecting section and the cutting section, and the upper surface of the fitting portion has a hook groove which is adapted to the cutting section.

[0008] Optionally, the bottom of the groove is an arc, a side of the groove close to the curved section is an arc-shaped surface, and a side opposite to the arc-shaped surface is a flat surface.

[0009] Optionally, the flat surface includes a first flat surface and a second flat surface, the first flat surface forms the inner flat portion of the connecting section, and the second flat surface forms the inner flat portion of the cutting section; the outer wall of the fitting portion has a third flat surface. The first and second flat surfaces are arranged in the groove, which not only improves the bearing capacity and stability of the overall structure, but also cooperates with the third flat surface of the fitting portion to provide a larger contact area, so that the ligation clip is not easy to slip after closing.

[0010] Optionally, a side of the support block away from the arc is rounded.

[0011] Optionally, the side of the support block away from the bottom of the groove is inclined, and the angle between the side and the straight edge is greater than 90 degrees.

[0012] Optionally, the side edge of the upper end of the support block is connected to the first flat surface or the second flat surface, and the lower end is connected to the arc surface, and the support block is located below the side of the cutting section.

[0013] Optionally, the cutting section has inclined surfaces on both sides, and the two inclined surfaces are gradually inclined from the outside to the inside from one end of the connecting section; the cutting section is in an arc-shaped structure away from the outer wall of the groove.

[0014] Optionally, the outer wall at the middle position of the first clamp arm is an arc-shaped structure convex outward, and the outer wall at the middle position of the second clamp arm is an arc-shaped structure concave inward; the connection between the first clamp arm and the second clamp arm is an integrated arc structure, and a hollow groove is provided at the connection between the first clamp arm and the second clamp arm; a plurality of groups of anti-slip teeth are respectively arranged at intervals on the relative inner clamping surfaces of the first clamp arm and the second clamp arm, and the anti-slip teeth on the first clamp arm and the anti-slip teeth on the second clamp arm are staggered; each group of anti-slip teeth is formed by two anti-slip teeth being adjacent and staggered.

[0015] Optionally, the first clamping arm is provided with clamping columns protruding from both sides of the arm body near the hook portion; and clamping members are provided on both sides of the fitting portion, and the clamping members are symmetrically arranged on both sides of the hook groove.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model can enhance the strength and stability of the hook portion by adding a support block in the groove inside the hook portion and providing support through the support block. Specifically, when the clamp clamp clamps the clamp column and the clamping member, and applies external force from the outside to the inside to make the hook portion snap into the fitting portion, the support block can disperse or transfer the external force, maximize the reinforcing effect on the hook portion, and enhance the overall stability of the ligation clamp. When the hook portion is located in the hook groove in the middle of the clamping member, the fitting portion can be clamped in the groove, the support block fits in the hook groove, and the two clamping members of the fitting portion clamp the outside of the hook portion, so that the fitting portion cannot swing left and right at all, further improving the closing force and closing reliability of the ligation clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0020] Figure 2 The structure of the utility model is shown in FIG. Figure 2 .

[0021] Figure 3 It is a front view of the utility model.

[0022] Figure 4 It is a top view of the utility model.

[0023] Figure 5 for Figure 1 A magnified view of the structure in the middle.

[0024] Figure 6 for Figure 3 A magnified view of the structure at B in the middle.

[0025] Figure numerals: 11, first clamping arm; 12, second clamping arm; 13, hook portion; 130, bending section; 131, connecting section; 132, cutting section; 1321, inclined surface; 133, groove; 1331, arc; 1332, arc-shaped surface; 1333, first flat surface; 1334, second flat surface; 14, fitting portion; 141, hook groove; 142, third flat surface; 15, anti-slip teeth; 16, hollow groove; 17, clamping column; 18, clamping member; 181, triangular inclined surface; 2, support block; 21, side. DETAILED DESCRIPTION

[0026] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0027] In the description of the embodiments of the present utility model application, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", "end", "side", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model application.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0029] In the embodiments of the present utility model application, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model application can be understood according to the specific circumstances.

[0030] In the embodiments of the utility model application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the utility model application. In order to simplify the disclosure of the embodiments of the utility model application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the utility model application. In addition, the embodiments of the utility model application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0032] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0033] like Figure 1 to Figure 6 As shown, the embodiment of the utility model application provides a ligation clamp, comprising: a ligation clamp body and a support block 2 arranged on the inner side of the hook portion 13 of the ligation clamp body.

[0034] The ligation clamp body includes a first clamp arm 11 and a second clamp arm 12. One end of the first clamp arm 11 is connected to the second clamp arm 12, and the first clamp arm 11 and the second clamp arm 12 are in a V-shaped structure. The first clamp arm 11 and the second clamp arm 12 can be integrally injection molded or proximally hinged to form a V-shaped structure.

[0035] The first clamp arm 11 has a hook portion 13 at the distal end, and the hook portion 13 includes a curved section 130, a connecting section 131 and a cutting section 132 connected in sequence. The curved section 130 is formed by bending inward from the distal end of the first clamp arm 11, one end of the connecting section 131 is connected to the curved section 130, and one end of the cutting section 132 is connected to the other end of the connecting section 131. A groove 133 is formed inside the curved section 130, the connecting section 131 and the cutting section 132, and a supporting block 2 adapted thereto is arranged in the groove 133. The second clamp arm 12 has a fitting portion 14 used in conjunction with the hook portion 13 at the distal end. When the first clamp arm 11 and the second clamp arm 12 begin to close, the cutting section 132 cooperates with the fitting portion 14 to cut off the tissue, and the supporting block 2 can increase the strength of the hook portion 13.

[0036] Furthermore, the inner wall of the curved section 130 is in a curved arc structure, whereby the bottom of the groove 133 forms an arc 1331, and the side wall on one side of the arc 1331 forms an arc surface 1332. The inner side of the connecting section 131 is in a straight structure, whereby the side wall on the other side of the arc 1331 forms a first straight surface 1333. The inner wall of the cutting section 132 located in the groove 133 is in a straight structure, that is, the side wall of the groove 133 opposite to the arc surface 1332 has a second straight surface 1334. The support block 2 is adapted to the groove 133, that is: the bottom of the support block 2 is in an arc structure, and the two sides of the arc structure are respectively in an arc structure and a straight structure. It can also be understood that the groove 133 is similar to a V-shaped structure, the bottom and one side wall of the V-shaped groove are in an arc setting, and the other side wall is in a straight setting.

[0037] Optionally, the outer wall of the fitting portion 14 has a third flat surface 142. When the hook portion 13 and the fitting portion 14 are clamped together and contact each other, the second flat surface 1334 and the third flat surface 142 fit each other, thereby providing a larger contact area, so that the ligation clip is not easy to slip off after closing.

[0038] Optionally, the length of the third flat surface 142 is greater than the sum of the lengths of the first flat surface 1333 and the second flat surface 1334 .

[0039] Optionally, the outer wall of the curved section 130 is in a curved arc structure.

[0040] Furthermore, the upper surface of the fitting portion 14 has a hook groove 141 that matches the structure of the cutting segment 132. When the first clamp arm 11 and the second clamp arm 12 begin to close, the cutting segment 132 cooperates with the hook groove 141 on the fitting portion 14 to cut off the tissue. The cooperation between the cutting segment 132 and the hook groove 141 can prevent the cutting segment 132 from sliding laterally after closing.

[0041] In one embodiment, the cutting section 132 has inclined surfaces 1321 on both sides, and the two inclined surfaces 1321 are gradually inclined inward from the outer side of one end of the connecting section 131, that is, the two inclined surfaces 1321 are located close to each other at the outer end of the cutting section 132, and the inclined surfaces 1321 gradually expand outward from the outer end of the cutting section 132, that is, the two inclined surfaces form a V-shaped structure.

[0042] Optionally, the cross section of the cutting segment 132 facing the groove 133 is a triangular structure.

[0043] Optionally, the outer wall of the cutting section 132 located outside the groove 133 has an arc-shaped structure.

[0044] Optionally, a side of the support block 2 away from the arc 1331 is rounded.

[0045] In one embodiment, the side edge 21 of the support block 2 is inclined, and the angle between the side edge 21 and the first flat surface 1333 is greater than 90 degrees.

[0046] Optionally, the angle between the support block 2 and the first flat surface 1333 is 90 degrees to 110 degrees.

[0047] In one embodiment, the upper end of the support block 2 is connected to the first flat surface 1333, and the lower end is connected to the arc surface 1332, and the support block 2 is located below the cutting section 132. In another embodiment, the upper end of the support block 2 is connected to the second flat surface 1334 close to the first flat surface 1333.

[0048] Optionally, a plurality of groups of anti-slip teeth 15 are respectively arranged at intervals on the inner clamping surfaces relative to each other of the first clamping arm 11 and the second clamping arm 12, and each group of anti-slip teeth 15 is formed by two anti-slip teeth adjacent to each other and staggered, that is, the two anti-slip teeth are respectively arranged on both sides of the inner surface, and the two anti-slip teeth are adjacent to each other and staggered.

[0049] Optionally, the anti-slip teeth of the first clamp arm 11 and the anti-slip teeth on the second clamp arm 12 are staggered. The anti-slip teeth 15 are staggered on the clamping surface to ensure that the ligation clamp is not easy to slip during clamping, and the clamping of the blood vessel is stable and reliable.

[0050] Optionally, the outer wall of the first clamping arm 11 is an outwardly convex arc structure, and the outer wall of the second clamping arm 12 is an inwardly concave arc structure.

[0051] In one embodiment, the connection between the first clamping arm 11 and the second clamping arm 12 is an integrated arc structure, and a hollow groove 16 is provided at the connection between the first clamping arm 11 and the second clamping arm 12 .

[0052] In one embodiment, the first clamping arm 11 is provided with clamping posts 17 protruding from both sides of the arm body near the hook portion 13, that is, both ends of the clamping posts 17 are protruding along the width direction of the first clamping arm 11. Clamping members 18 are provided on both sides of the fitting portion 14, and the clamping members 18 are symmetrically arranged on both sides of the hook groove 141.

[0053] Optionally, the cross section of the clip post 17 is a square or a circle with rounded corners.

[0054] Optionally, the clamping member 18 partially protrudes from the fitting portion 14 .

[0055] Optionally, the clamping member 18 has an arc structure on one side close to the third flat surface 142, and a triangular inclined surface 181 is provided on the other side. The arc structure can be a circle or a rounded square, and its diameter can be the same as that of the clamping column 17, which is convenient for use.

[0056] The arrangement of the clip applicator column 17 and the clamping member 18 is used to clamp the clip applicator column 17 and the clamping member 18 with a tool such as a clip applicator pliers during the process of closing the ligation clip, and then apply external force from the outside to the inside of the two clamp arms, so that the hook portion 13 and the fitting portion 14 are close to each other, and the inclined surface 1321 on the outside of the cutting section 132 slides along the hook groove 141 on the inside of the fitting portion 14, and finally the hook portion 13 is clamped on the fitting portion 14. When the hook portion 13 is located in the hook groove 141 in the middle of the clamping member 18, the fitting portion 14 can be clamped in the groove 133, and the support block 2 in the groove 133 is also fitted in the hook groove 141. The two clamping members 18 of the fitting portion 14 clamp the outside of the hook portion 13, so that the fitting portion 14 cannot shake left and right at all, thereby improving the closing force and closing reliability of the ligation clip.

[0057] Parts not described in detail in this embodiment are well-known techniques in the art.

[0058] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A ligation clip, characterized in that: include: The ligation clamp body comprises a first clamp arm (11) and a second clamp arm (12) connected in a V-shape; The end of the first clamp arm (11) is provided with a hook portion (13), and the end of the second clamp arm (12) is provided with a fitting portion (14) adapted to the hook portion (13); A groove (133) is formed on the inner side of the hook portion (13); A support block (2) adapted to the groove (133) is arranged in the groove (133).

2. The ligation clip according to claim 1, characterized in that: The hook portion (13) comprises a curved section (130), a connecting section (131) and a cutting section (132) which are connected in sequence; a groove (133) is formed on the inner sides of the curved section (130), the connecting section (131) and the cutting section (132); and the upper surface of the fitting portion (14) has a hook groove (141) which is matched with the cutting section (132).

3. The ligation clip according to claim 2, characterized in that: The bottom of the groove (133) is a circular arc (1331), the side of the groove (133) close to the curved section (130) is an arc-shaped surface (1332), and the side opposite to the arc-shaped surface (1332) is a flat surface.

4. The ligation clip according to claim 3, characterized in that: The flat surface includes a first flat surface (1333) and a second flat surface (1334; The first straight surface (1333) forms an inner straight portion of the connecting section (131), and the second straight surface (1334) forms an inner straight portion of the cutting section (132).

5. The ligation clip according to claim 3, characterized in that: The side of the support block (2) away from the arc (1331) is rounded.

6. The ligation clip according to claim 3 or 5, characterized in that: The side edge (21) of the support block (2) away from the bottom of the groove (133) is arranged in an inclined manner, and the angle between the side edge (21) and the straight edge is greater than 90 degrees.

7. The ligation clip according to claim 6, characterized in that: The side edge (21) at the upper end of the support block (2) is connected to the first flat surface (1333) or the second flat surface (1334), and the lower end is connected to the arc surface (1332). The support block (2) is located below and to the side of the cutting section (132).

8. The ligation clip according to claim 2, characterized in that: The cutting section (132) has inclined surfaces (1321) on both sides respectively, and the two inclined surfaces (1321) are arranged to be gradually inclined from the outside to the inside from one end of the connecting section (131); the outer wall of the cutting section (132) away from the groove (133) is in an arc-shaped structure.

9. The ligation clip according to claim 1 or 2, characterized in that: The outer wall at the middle position of the first clamp arm (11) is an outwardly convex arc structure, and the outer wall at the middle position of the second clamp arm (12) is an inwardly concave arc structure; the connection between the first clamp arm (11) and the second clamp arm (12) is an integrated arc structure, and the connection between the first clamp arm (11) and the second clamp arm (12) is provided with a hollow groove (16); a plurality of groups of anti-slip teeth (15) are arranged at intervals on the inner clamping surfaces opposite to each other of the first clamp arm (11) and the second clamp arm (12), and the anti-slip teeth of the first clamp arm (11) and the anti-slip teeth on the second clamp arm (12) are arranged in a staggered manner; each group of anti-slip teeth (15) is formed by two anti-slip teeth that are adjacent and staggered.

10. The ligation clip according to claim 2, characterized in that: The first clamping arm (11) is provided with clamping columns (17) protruding from both sides of the arm body near the bent hook portion (13); clamping members (18) are provided on both sides of the fitting portion (14), and the clamping members (18) are symmetrically arranged on both sides of the hook groove (141).

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