Anal fistula scalpel

Abstract

The invention relates to the technical field of medical instruments, in particular to an anal fistula scalpel. The anal fistula scalpel comprises an inner prying part and an outer prying part. The outer prying part comprises an outer scalpel pipe and an outer scalpel handle, and the upper end of the outer scalpel pipe is provided with a spiral opening. The inner prying part comprises an inner scalpel pipe and an inner handle. The top end of the outer scalpel pipe and the top end of the inner scalpel pipe are provided with round heads. The upper end of the inner scalpel pipe is provided with a spiral opening the same as the spiral opening in the outer scalpel pipe. The spiral opening in the outer scalpel pipe and the spiral opening in the inner scalpel pipe are provided with scalpel edges. The inner scalpel pipe can move up and down and freely rotate by 360 degrees in the outer scalpel pipe. The spiral openings are provided with smooth threads or toothed threads. The lower end of the outer scalpel pipe and the lower end of the inner scalpel pipe are provided with curve rods. The curve rods are provided with thread lines. The diameter of the outer scalpel pipe and the diameter of the inner scalpel pipe range from 1 mm to 5 mm, and the screw pitches of the spiral openings range from 2.5 mm to 4.5 mm and are equidistant pitches or big-end-up gradually-changing screw pitches. The outer scalpel pipe and the inner scalpel are provided with scale marks. The anal fistula scalpel can freely carry out 360-degree dead-angle-free cutting, segmented cutting is achieved, labor is saved during manual cutting, the anal fistula scalpel is close to clinic use, the operation fatigue of medical workers is relieved, and the excision efficiency is higher.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an anal fistula scalpel. Background technique [0002] The anal fistula scalpel used in clinical medicine is generally a needle-type inner blade cutter now. In the process of treatment, it is necessary to use a special probe to find the internal opening of the fistula tract and then use the anal fistula knife for surgery, which has disadvantages such as inconvenient operation; sometimes it is necessary to directly use the anal fistula knife to find the internal opening, but it is extremely easy to damage other parts, resulting in unnecessary surgery. injury, or even surgical failure. [0003] At present, there is also a steel pipe-type anal fistula scalpel. The notches on the pipe are all horizontal, which leads to staggered upper and lower layers during cutting, poor alignment accuracy, and dead angles. If the back of the knife rests on the meat tissue , there is n...

AI Technical Summary

Problems solved by technology

In the process of treatment, it is necessary to use a special probe to find the internal opening of the fistula tract and then use the anal fistula knife for surgery, which has disadvantages such as inconvenient operation; sometimes it is necessary to directly use the anal fistula knife to find the internal opening, but it is extremely easy to damage other parts, resulting in unnecessary surgery. injury, or even failed surgery

[0003] At present, there is also a steel pipe-type anal fistula scalpel. The notches on the pipe are all horizontal, which leads to staggered upper and lower layers during cutting, poor alignment accuracy, and dead angles. If the back of the knife rests on the meat tissue , there is no way to cut

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