Anti-over-thick tissue firing type anastomat based on anti-secondary firing

Abstract

The utility model relates to medical instrument research and medical safety device technical field especially, more particularly to a kind of over-thick tissue firing type anastomat based on preventing secondary firing.A kind of over-thick tissue firing type anastomat based on preventing secondary firing, comprising: nail bin subassembly, including the nail seat, and the nail bin seat for installing the nail bin with push nail slider, the side of the nail seat close to nail bin seat is provided with safety boss and first elastic member;And firing component, including the cutting knife that is pressed down by the elastic force of first elastic member, cutting knife is provided with first guide boss and unlocking portion;Wherein, when the nail seat and nail bin seat close and cutting knife press down, the moving path of first guide boss passes through safety boss;Unlocking portion is by push nail slider to resist to lift and release cutting knife.The scheme can avoid secondary firing of the nail bin that has been used and the misfire of over-thick tissue or nail bin subassembly not fully closed, improve the safety and reliability of anastomosis operation.

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