Staple cartridges, staple cartridge components, staple forming parts and surgical staplers

Abstract

A staple cartridge, a staple cartridge assembly, and a staple forming part are used for a surgical stapler. The first stapling surface of the staple cartridge or the second stapling surface of the staple forming part is a curved surface structure. The staple cartridge has a staple cartridge body. The staple cartridge body has a first anastomotic surface, the first anastomotic surface is a curved surface structure, the curved surface structure has a plurality of first protrusions and a plurality of first depressions, and each first protrusion and each first The concave parts are arranged alternately, and the first mating surface is provided with grooves opening outward. According to the staple cartridge provided by the present invention, the first anastomotic surface of the staple cartridge is a curved surface structure, which improves the friction between the first anastomotic surface and the tissue to be anastomotic, so that after the staple cartridge and the staple forming part are clamped, the tissue to be anastomotic is not easily Displacement is formed between the staple cartridge and the staple forming part; and the groove can accommodate and discharge the interstitial fluid in the target tissue, effectively shortening the time for compressing the tissue to a specified thickness and shortening the operation time.

Description

technical field [0001] The invention relates to a medical device, in particular to a staple cartridge, a staple cartridge assembly, a staple forming part and a surgical stapler using the same, belonging to the field of medical instruments. Background technique [0002] Various surgical cutting staplers are used to replace the manual anastomosis with needles and threads in surgical operations, and are being widely used for 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 It is especially suitable for anastomosis of organs and tissues that are exposed and difficult to operate, which can reduce operation time and improve operation quality. [0003] An existing surgical stapler includes a staple cartridge assembly, a staple forming part and a clamping mechanism, wherein the staple cartridge assembly includes a staple cartridge, a staple cartridge rack on which the stap...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention aims to provide a staple cartridge and a surgical stapler, which solves the problems of the displacement of the tissue to be anastomoticed during the staple cartridge and the large resistance of the staple ejection and the poor formation of the staple. problem, can expedite the drainage of interstitial fluid in the target tissue

Images