Pusher lever booster mechanism for anastomat and anastomat

Abstract

The invention discloses a pusher lever booster mechanism for an anastomat and the anastomat, and relates to the technical field of medical equipment. The pusher lever booster mechanism includes a pipebody, a connection mechanism, a pusher lever assembly and a booster. The pusher lever assembly is arranged in the pipe body and can slide in the pipe body; the booster sleeves the pusher lever assembly; one end of the booster is fixed on the connection mechanism, and the other end of the booster is fixed on the pipe body; the booster includes a top wall, a bottom wall, a plurality of first extensions and a plurality of second extensions; there is a gap between adjacent first extensions, and there is a gap between adjacent second extensions; the booster cannot be compressed or stretched in theextension direction of the top wall or the bottom wall. After the head of the connection mechanism is swung, the pusher lever assembly can move along the swinging side of the connection mechanism under the action of the tail thrust, and the pusher lever assembly located at the connection mechanism will not be crooked and raised in the opposition direction of rotation of the connection mechanism.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a pusher rod assist mechanism for a stapler and a stapler. Background technique [0002] Stapler is a special medical device that replaces manual suturing. Its main working principle is to use titanium nails to anastomose tissues and use a cutter to separate them. According to the scope of application, it can be divided into skin staplers, digestive tract (esophagus, gastrointestinal, etc.) circular staplers, rectal staplers, circular hemorrhoid staplers, circumcision staplers, blood vessel staplers, hernia staplers , Lung cutting stapler, etc. [0003] The swinging head of the existing laparoscopic cutting stapler is realized by the elastic deformation of the pusher rod assembly, and a power-assisted mechanism is needed at the elastic deformation position of the pusher rod assembly. Morph provides a stable channel. At present, the assisting mechanism in most stapl...

AI Technical Summary

Problems solved by technology

This will cause the stapler to fail to complete the firing process normally or may require greater firing force during the firing process to forcibly push the head of the pusher rod assembly forward after the bulge protrudes, and the latter operates the curved bulge When the failure is serious to a certain extent, it may cause the breakage of the push rod assembly

In either case, the head of the pusher rod assembly cannot drive the cutter to move forward for cutting operations

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