Anastomat cutting knife with safety function and anastomosis cutter

Abstract

The invention discloses an anastomat cutting knife with a safety function and an anastomosis cutter, the anastomat cutting knife comprises a knife head and a knife body, and the knife head and the knife body are connected in a relative motion mode. According to the anastomat cutting knife with the safety function and the anastomosis cutter, when the anastomat cutting knife is in a non-cutting state, the cutting knife head can be effectively prevented from entering a nail bin again due to misoperation; and parts for realizing the safety function are small in structure and small in occupied nail bin space, so that cutting and suturing actions can be smoothly carried out.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a stapler cutter and a stapler cutter with insurance functions. Background technique [0002] Laparoscopic anastomotic cutter is a cutting and suturing tool commonly used in clinical operations, and it is mainly composed of a staple cartridge, a pusher slider, a cutting knife, a knife case, and a pushing rod. When in use, the push rod fires forward, and the cutter head of the cutting knife and the push nail slider slide in the staple bin under the action of the push rod, thereby completing the cutting and suturing actions. After the cutting and suturing actions are completed, the cutting knife generally needs Fallback reset. [0003] When the cutting knife is in the non-cutting state, the cutter head of the cutting knife should be prevented from re-entering the staple cartridge due to misoperation. At this time, it is often necessary to arrange a safety mechanism in the ...

AI Technical Summary

Problems solved by technology

But there are still defects in this structure: 1. Since the cutting knife and the cutting knife frame are separated, in the cutting and suturing action, the resistance effect of the cut tissue is received. Once the cutting knife frame slightly retreats, the cutting knife frame and the cutting knife There is a gap between them, and the tissue is easy to squeeze into the gap, thereby affecting the cutting and suturing operations; 2. The cutting knife, push nail slider and elastic components are all movable in the staple cartridge, occupying a large movable space, which is not conducive to cutting and sewing action

The defect of this type of stapler cutting knife is that the knife head cannot swing up and down. When cutting thicker tissues, the resistance of cutting and firing is relatively large. There is a hidden danger of the anastomotic cutter falling apart

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