Minimally invasive surgery hemostatic clip applicator

Abstract

The invention discloses a minimally invasive surgery hemostatic clip applier, and belongs to the field of medical instruments. The minimally invasive surgery hemostatic clip applier comprises an extension part (4), a meshing part (5) and a driving end (2), wherein the meshing part (5) and the driving end (2) are located at the two ends of the extension part; the driving end controls opening and closing of the meshing part through the extension part, and a hemostatic clip cavity (402) used for advancing of a hemostatic clip is formed in the middle in the extension part; the cross section of thehemostatic clip cavity is rectangular, and a movable rod cavity (401) communicated with the hemostatic clip cavity is formed in the side face of the hemostatic clip cavity; the movable rod cavity islocated in the middle of the hemostatic clip cavity; the movable rod cavity (401) is internally provided with a movable rod (403), and a limiting column (4031) is arranged on the movable rod; the limiting column is used for limiting the joint of the hemostatic clip; the upper portion and the lower portion of the movable rod are both provided with a clamping strip (4034); a first clamping groove (411) and a second clamping groove (421) which are matched with the clamping strips are formed in the upper side and the lower side of the movable rod cavity respectively.

Description

technical field [0001] The invention relates to the field of medical equipment. Background technique [0002] The hemostatic clip is a device used clinically to clamp blood vessels. The current hemostatic clip clamp is usually single-shot, and can only clamp one hemostatic clip at a time. After the hemostatic clip clamps the blood vessel, the hemostatic clip needs to be reinstalled. [0003] In some cases, there are also some multi-shot types, which can shoot multiple hemostatic clips at the same time, but how to advance the hemostatic clip along the clamp tube or the extension is a crucial issue that affects the performance of the clip applier. [0004] The publication number is CN106037866A, which discloses a hemostatic clip applicator, which can be used multiple times. The principle of advancing the hemostatic clip is as follows: the hemostatic clip is respectively provided with two limit posts, and the clip 3 is provided with 31 pairs of limit bars. One limit column of ...

AI Technical Summary

Problems solved by technology

[0003] In some cases, there are also some multi-shot types, which can shoot multiple hemostatic clips at the same time, but how to advance the hemostatic clip along the clamp tube or the extension is a crucial issue that affects the performance of the clip applier

[0004] The publication number is CN106037866A, which discloses a hemostatic clip applicator, which can be used multiple times. The principle of advancing the hemostatic clip is as follows: the hemostatic clip is respectively provided with two limit posts, and the clip 3 is provided with 31 pairs of limit bars. One limit column of the hemostatic clip is used to limit the position, and the other uses the positioning bar of the push splint 92 to limit the position of the other limit post of the hemostatic clip. When in use, push the splint forward, and further push the hemostatic clip forward through the positioning bar , in this case, what pushes the hemostatic clip forward is the force received by the two limit posts of the hemostatic clip. When advancing, the hemostatic clip is easily deformed, which further affects the closing and clamping effect of the hemostatic clip

At the same time, the existing push splint is easy to deform when it is advancing, especially when it is applied to a surgical robot, because the push splint advances slowly, the push splint is easy to bend and deform, and then affects the effect of advancing the hemostatic clip

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