Radial contraction type artificial anal sphincter device capable of achieving constant-force clamping

Abstract

The invention relates to a radial contraction type artificial anal sphincter device capable of achieving constant-force clamping. The radial contraction type artificial anal sphincter device comprises a fixed shell, a plurality of clamping elements, a grooving disc, a plurality of force transmission mechanisms and a corner control mechanism, a circular groove and a plurality of upper through grooves which communicate with each other are formed in the top of the fixed shell, the circular groove is located in the center, the multiple upper through grooves are formed in the radial direction and distributed around the circular groove, the clamping elements are movably located in the upper through grooves and the circular groove, a channel is formed between the multiple clamping elements, the grooving disc is rotatably located in the fixed shell, the top of the grooving disc is horizontally provided with multiple eccentric lower grooves, and the top of the force transmission mechanism is in transmission connection with the clamping elements. The bottom of the force transmission mechanism is movably located in the lower grooves, and the corner control mechanism is located at the bottom of the grooving disc and is in transmission connection with the grooving disc. Compared with the prior art, the structure is simplified, miniaturized and integrated, the excrement control effect is ideal, constant-force clamping can be achieved, and damage to intestinal tissues caused by too large clamping contact stress is avoided.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a radially shrinkable artificial anal sphincter device capable of constant force clamping. Background technique [0002] Fecal incontinence is a common symptom clinically, mainly because patients cannot achieve the purpose of controlling feces and gas discharge by controlling the relaxation of the anal sphincter. Although fecal incontinence is not fatal, it will bring great pain to patients physically and mentally, and seriously affect the quality of life of patients. The National Health and Nutrition Survey of the United States shows that the prevalence of anal incontinence in American adults is 8.3%, and the incidence rate gradually increases with age. [0003] For anal incontinence, the traditional surgical treatment includes sphincter repair, specifically: effectively separate and suture the scars at both ends of the severed sphincter to achieve repair; sphincter tra...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of mechanical mismatch between the existing artificial anal sphincter device and the intestinal tissue, and to provide a radial contraction type artificial anal sphincter device that can be clamped by constant force. The structure is integrated, the stool control effect is ideal, and constant force clamping can be realized, which avoids damage to intestinal tissue caused by excessive clamping contact stress

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