Cutter of disposable cavity cutting anastomosing instrument

Abstract

The invention relates to a cutter of a disposable cavity cutting anastomosing instrument. The cutter is a fitting device of a disposable cavity cutting anastomosing and stitching instrument, which applies a bar on a cavity tissue. The cutter comprises a blade, wherein an upper cutter base is arranged on the upper part of the blade; a lower cutter base is arranged on the lower part of the blade; a knife edge is arranged at the front end of the blade; a pushing plate mounting lug boss or a pushing plate mounting and buckling groove is formed in the rear end of the blade; an injection molding hole is formed in each of the upper cutter base and the lower cutter base; plastic lubricating layers are formed on the inner side faces of the upper cutter base and the lower cutter base through injection molding by the injection molding hole; the pushing plate mounting lug boss is matched with and fixedly connected with a groove formed in a pushing plate; the pushing plate mounting and buckling groove is matched with and fixedly connected with a mounting buckle arranged on the pushing plate. The cutter of the disposable cavity cutting anastomosing instrument is reasonable in design, simple in structure, stable, safe and high in reliability, and is conveniently connected with the pushing plate, and the cutter and the pushing plate do not fall off in an anastomosing process of the disposable cavity cutting anastomosing instrument, so that the success of a surgery is guaranteed.

Description

technical field [0001] The invention relates to a cutting knife of a disposable intracavity cutting and stapler, which is a matching device for a disposable intracavity cutting and stapling device for applying a line row on the intracavity tissue. Background technique [0002] At present, the rear end of the cutting knife of the disposable intracavity cutting stapler is directly welded and fixed to the front end of the push plate in the cannula assembly. The staple cartridge assembly of the internal cutting stapler cannot be opened and cannot fall off from the clamped tissue, and the staple cartridge assembly is forced to be taken out through laparotomy, which brings unnecessary pain to the patient. Contents of the invention [0003] The object of the present invention is to provide a cutting knife of a disposable intracavity cutting stapler for the above disadvantages, which has a blade, an upper knife seat, a lower knife seat, a push plate installation boss or a push pla...

AI Technical Summary

Problems solved by technology

[0002] At present, the rear end of the cutting knife of the disposable intracavity cutting stapler is directly welded and fixed to the front end of the push plate in the cannula assembly. The staple cartridge assembly of the internal cutting stapler cannot be opened and cannot fall off from the clamped tissue, and the staple cartridge assembly is forced to be removed by laparotomy, which brings unnecessary pain to the patient

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