Nail bin, nail bin component, stitching nail forming member and surgical anastomat

Abstract

The invention discloses a nail bin, a nail bin component and a stitching nail forming member which are used for a surgical anastomat. A first anastomotic surface of the nail bin or a second anastomotic surface of the stitching nail forming member is of a curved surface structure, the nail bin comprises a nail bin body which is provided with a first anastomotic surface of a curved surface structurehaving multiple first protruding portions and multiple first concave portions, the first protruding portions and the first concave portions are alternately arranged, and the first anastomotic surfaceis provided with a groove with an outward opening. According to the nail bin, the first anastomotic surface of the nail bin is of the curved surface structure, so that friction force between the first anastomotic surface and to-be-anastomosed tissue is improved, and after the nail bin and the stitching nail forming member are clamped, the to-be-anastomosed tissue is less prone to moving between the nail bin and the stitching nail forming member; the groove can contain and discharge tissue fluid at target tissue, so that time for compressing the tissue to specific thickness is shortened effectively, and surgical time is shortened.

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

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