Blood vessel ligation clamp

Abstract

The utility model provides a blood vessel ligation clamp, and belongs to the technical field of medical instruments. Comprising an upper clamping arm and a lower clamping arm, a hollow groove providing opening and closing elasticity for the upper clamping arm and the lower clamping arm is formed in the joint of the upper clamping arm and the lower clamping arm, and a clamping structure capable of achieving positioning when the ligature clip is closed is arranged between the free end of the upper clamping arm and the free end of the lower clamping arm; two elastic pieces are symmetrically arranged on the two sides of the clamping face of the lower clamping arm, each elastic piece comprises a concave elastic piece and a limiting strip connected with the elastic piece, and the limiting strips can abut against the side wall of the upper clamping arm when the ligation clamp is closed. The clamp has the advantages of being reliable in clamping, anti-skidding, anti-falling and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instruments and relates to a vascular ligating clip. Background Art

[0002] The ligating clip, also known as a closure clip, is mainly used to fix local tissues or ligate blood vessels during surgery to achieve hemostasis and assist in the recovery of the wound surface. After surgery, disposable ligating clips usually do not need to be removed and can remain in the body for degradation and absorption (i.e., absorbable ligating clips).

[0003] After the two clamping arms of the existing vascular ligating clip are closed, the lateral limiting protrusions on the clamping surface are used to limit and prevent the blood vessel from slipping, and the limiting ribs arranged vertically are used to stop the clip and stop bleeding of the blood vessel. However, since the vertically arranged limiting ribs are located in the middle of the clamping surface and do not have elastic buffering (as disclosed in the Chinese patent with the patent number 201210556673.6), they are likely to cause obvious cutting force on the clamping position of the blood vessel and easily cause tissue damage. In addition, during surgery, sometimes it is necessary to traction the blood vessel or tissue after clamping. Under the action of the traction pulling force, the cutting force of the vertical limiting strip of the existing ligating clip on the blood vessel and tissue is even more obvious. Due to the lack of elastic buffering, the clamping point is also prone to slipping and dislocation under the traction pulling condition. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a vascular ligating clip for the above problems existing in the prior art. The technical problem to be solved by the utility model is how to improve the clamping reliability.

[0005] The purpose of the utility model can be achieved by the following technical solutions: A vascular ligating clip includes an upper clamping arm and a lower clamping arm. There is a hollow groove at the connection of the upper clamping arm and the lower clamping arm to provide elasticity for their opening and closing. A clamping structure is provided between the free ends of the upper clamping arm and the lower clamping arm to achieve positioning when the ligating clip is closed. It is characterized in that two elastic members are symmetrically arranged on both sides of the clamping surface of the lower clamping arm. The elastic member includes an elastic sheet with a concave shape and a limiting strip connecting the elastic sheet. The limiting strip can press against the side wall of the upper clamping arm when the ligating clip is closed.

[0006] Further, a circular chamfer is provided for transition between the clamping surface of the upper clamping arm and its two side walls.

[0007] This vascular ligating clip changes the traditional way of limiting and positioning the blood vessel by the ligating clip, especially the way of laterally clamping the blood vessel. It uses two elastic members to replace the vertical limiting ribs of the traditional vascular ligating clip. On the one hand, the elastic members are located on both sides of the clamping surface of the lower clip arm and are elastic, capable of self-adapting to the clamping force on the blood vessel and providing elastic buffering. On the other hand, since the limiting strips can press against the side wall of the upper clip arm when the ligating clip is closed, there are two "bending" positions for the blood vessel during ligation, greatly improving the reliability of clamping and hemostasis, and at the same time not causing damage to the blood vessel. Finally, when being pulled, the two limiting strips can perform anti-return limiting on the blood vessel in two pulling directions, avoiding the loosening and dislocation of the ligating clip caused by pulling the blood vessel during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a perspective structural view of the vascular ligating clip.

[0009] Figure 2 is a structural view of the vascular ligating clip in the closed state.

[0010] Figure 3 is a cross-sectional view of the upper clip arm and the lower clip arm before closing.

[0011] Figure 4 is a cross-sectional view of the upper clip arm and the lower clip arm when clamping the blood vessel.

[0012] In the figure, 1, upper clip arm; 2, lower clip arm; 3, hollow groove; 4, clamping structure; 5, elastic member; 51, elastic sheet; 52, limiting strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The following are specific embodiments of the present invention and in combination with the drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0014] As Figure 1 and Figure 2 shown, the vascular ligating clip includes an upper clip arm 1 and a lower clip arm 2. There is a hollow groove 3 at the connection of the upper clip arm 1 and the lower clip arm 2 to provide the elasticity for their opening and closing. A clamping structure 4 capable of positioning when the ligating clip is closed is provided between the free end of the upper clip arm 1 and the free end of the lower clip arm 2; two elastic members 5 are symmetrically arranged on both sides of the clamping surface of the lower clip arm 2. The elastic member 5 includes a concave elastic sheet 51 and a limiting strip 52 connecting the elastic sheet 51. The limiting strip 52 can press against the side wall of the upper clip arm 1 when the ligating clip is closed.

[0015] The clamping surface of the upper clip arm 1 and the two side walls are transitioned by a circular chamfer, so that the limiting strip 52 can be better guided to the side wall of the upper clip arm 1.

[0016] Other structures identical to the prior art also include: there are respectively a bulge on the upper clamping arm 1 and the lower clamping arm 2 for the clamp to hold this ligating clip. In addition, the clamping structure 4 is a hook part on the upper clamping arm 1 and a clamping head on the lower clamping arm 2. In the closed state, the clamping head is snapped into the hook part to achieve positioning. A number of transverse limiting ribs are also arranged at intervals on the clamping surface of the lower clamping arm 2.

[0017] This blood vessel ligating clip changes the traditional way of limiting and positioning the blood vessel by the ligating clip, especially the way of laterally clamping the blood vessel. Two elastic members 5 are used to replace the vertical limiting ribs of the traditional blood vessel ligating clip. On the one hand, the elastic members 5 are located on both sides of the clamping surface of the lower clamping arm 2 and have elasticity, which can adaptively adjust the clamping force on the blood vessel and provide elastic buffering. On the other hand, since the limiting strip 52 can press against the side wall of the upper clamping arm 1 when the ligating clip is closed, there are two "bending" positions of the blood vessel during ligation, which greatly improves the reliability of clamping and hemostasis and will not cause damage to the blood vessel. Finally, as Figure 3 and Figure 4 shown, when being pulled, the two limiting strips 52 can perform anti-back limiting on the blood vessel in two pulling directions, avoiding the loosening and dislocation of the ligating clip caused by pulling the blood vessel during the operation.

[0018] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A vascular ligation clamp, comprising an upper clamp arm (1) and a lower clamp arm (2), wherein the connection between the upper clamp arm (1) and the lower clamp arm (2) has a hollow groove (3) for providing elasticity for opening and closing of the two arms, and a clamping structure (4) is provided between the free end of the upper clamp arm (1) and the free end of the lower clamp arm (2) for achieving positioning when the ligation clamp is closed; characterized in that: Two elastic members (5) are symmetrically arranged on both sides of the clamping surface of the lower clamping arm (2), and the elastic member (5) comprises a concave elastic sheet (51) and a limiting strip (52) connected to the elastic sheet (51), and the limiting strip (52) can be pressed against the side wall of the upper clamping arm (1) when the ligation clamp is closed.

2. A vascular ligation clip according to claim 1, characterized in that: The clamping surface of the upper clamping arm (1) and the two side walls are transitioned by a circular chamfer.

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