Surgical linear stapler with automatic cutter knife changing function

Abstract

The invention relates to a surgical linear stapler with an automatic cutter knife changing function. Cutter knives mounted in a knife bin in a stapling bin component are divided into an initial assembly cutter knife and multiple standby cutter knives, after cutting operation of the initial assembly cutter knife is completed, the initial assembly cutter knife is remounted in a knife slot of the knife bin, the initial assembly cutter knife is taken away from a knife rest, meanwhile the first standby cutter knife adjacent to the initial assembly cutter knife is mounted on the knife rest by the knife bin, actions of changing the cutter knifes are completed sequentially, the stapling bin is simple in structure and low in cost, knife edges of the cutter edges during surgeries can be kept sharp in every use, tasks of cutting various tissue are executed smoothly, and even technical effect of cutting stapler nails previously stapled on the tissue is realized.

Description

technical field [0001] The present invention relates to the installation of cutting knives in various surgical linear staplers, in particular to the cutting knives installed in surgical linear staplers, and in particular to the cutting knives installed in endoscopic surgical linear staplers, and in particular to To the cutting knife installed in various electric surgical linear staplers. Background technique [0002] Various surgical linear staplers are used to replace the manual anastomosis with needles and threads in surgical operations, and are being widely used in end-to-end, end-to-side and side-to-side anastomosis of organs and tissues such as human digestive tract organs, respiratory tract organs, and urogenital organs. , channel forming surgery, incision closing surgery and clamping or cutting surgery, especially suitable for anastomosis of organs and tissues that are exposed and difficult to operate, which can reduce operation time and improve operation quality. ...

AI Technical Summary

Problems solved by technology

The unsatisfactory part of this surgical linear stapler is that during the operation, the cutting knife in the surgical linear stapler gradually blunts after several times of cutting tissue, especially the cutting edge of the cutting knife cuts to the previously stapled place. The knife edge has been damaged when the staple is placed on the tissue. If it continues to be used, the cutting knife will not be able to cut the tissue normally, resulting in the failure of the surgical linear stapler and even the failure of the operation.

U.S. Patent Publication 20130056522 introduces a surgical linear stapler: a staple cartridge equipped with staples and cutters is replaced by a staple cartridge, which has a complicated structure and high cost

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