Anorectal anastomat with function of selectively excising anorectal tissues

Abstract

The invention provides an anorectal anastomat with a function of selectively excising anorectal tissues. The anastomat comprises a handle assembly, an osculating assembly, a nail propping seat assembly, a screw rod assembly, a push rod assembly and a clutch structure, a first nail pushing piece and a second nail pushing piece which can be spliced to form a nail pushing piece of a circular tube structure are arranged in a nail bin sleeve in a sliding mode, a first straight push rod for pushing the first nail pushing piece and a second straight push rod for pushing the second nail pushing pieceare arranged in a fixed handle, and a clutch structure for controlling the movable handle to be linked with the first straight push rod and / or the second straight push rod is arranged in the fixed handle. When in use, only the positions of a first sliding block and a second sliding block of the clutch structure need to be adjusted, a movable handle pulled, selective clearance on one of the first straight push rod and the second straight push rod can be realized, then one of the first nail pushing piece and the second nail pushing piece is triggered to push the anastomosis nail, the purpose ofselectively excising mucous membrane tissues on anorectal dentate lines of a patient is achieved, and operation risks are effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an anorectal stapler with the function of selectively removing anorectal tissue. Background technique [0002] The tubular anorectal stapler is a disposable surgical instrument suitable for human anorectal anastomosis. Its principle is to retain the anal cushion, and perform an instant anastomosis while resecting part of the internal hemorrhoids and the mucosa and submucosal tissues on the hemorrhoids. The blood supply of the hemorrhoid is blocked, the slipped tissue is suspended and fixed, and the pathological anorectum is restored to its normal anatomical state. The tubular anorectal stapler mainly includes an anorectal assembly, a staple cartridge assembly, a fixed handle assembly, an adjustment screw assembly, a pointer mechanism, a movable handle assembly, a push rod assembly and a safety block assembly. When in use, the anvil seat of the nail anvil asse...

AI Technical Summary

Problems solved by technology

[0003] However, the current tubular anorectal stapler generally adopts the method of overall circumcision and suture to cut off or anastomose the anorectal tissue. When it is necessary to selectively remove tissues such as the dentate line mucosa on the anorectum, it needs to be used accordingly. Local excision of the corresponding accessories, the operation process is more complicated, and the operation cost is correspondingly higher, which increases the economic burden of patients

Moreover, when the dentate line mucosa on the anorectum is selectively resected by overall circumcision and suture, the excess unused staples are likely to fall into the human body, which increases the pain of the patient and increases the risk of surgery

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