Sealed shell protected anal sphincter prosthesis

Abstract

A sealed shell-protected anal sphincter prosthesis in the technical field of medical devices, comprising: a coil box, a prosthesis clamping mechanism provided with an upper fixing ring, an arc-shaped swing leg and a lower fixing ring in sequence from top to bottom in the axial direction; The left sealing shell and the right sealing shell covering both sides of the prosthesis clamping mechanism, wherein: the left sealing shell and the right sealing shell are fixedly connected, and the prosthesis clamping mechanism is axially encapsulated with a driving device outside the ring structure, and the arc The shaped swing leg is connected with the driving device, and the bottom of the driving device is provided with a wire passing barrel, and the wire passing barrel passes through the right sealing shell and is sealed and connected with the coil box through a silicone tube. The present invention greatly reduces the contact area with biological tissues by installing a sealed shell on the outside of the clamping mechanism, improves the smoothness of the outer surface of the mechanism, thereby avoiding mechanism failures caused by tissue rejection hyperplasia and adhesion after the mechanism is implanted.

Description

technical field [0001] The invention relates to a technology in the field of medical devices, in particular to a sealed shell-protected anal sphincter prosthesis. Background technique [0002] The artificial anal sphincter prosthesis simulates the physiological function of the normal external anal sphincter, senses the rectal pressure through the pressure sensor, and combines with the control system to reshape the rectal sensation and realize autonomous control of defecation, thereby treating fecal incontinence. Contents of the invention [0003] The present invention aims at making the pressure sensor used in the existing prosthesis difficult, the yield is low, it is easy to break when the prosthesis is assembled, the overall sealing performance of the prosthesis mechanism is difficult to meet the requirements, and the mechanical structure is not easy to disassemble. In view of the defects such as disassembly and assembly, a sealed shell-protected anal sphincter prosthesi...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at making the pressure sensor used in the existing prosthesis difficult, the yield is low, it is easy to break when the prosthesis is assembled, the overall sealing performance of the prosthesis mechanism is difficult to meet the requirements, and the mechanical structure is not easy to disassemble. In order to avoid defects such as disassembly and assembly, a sealed shell-protected anal sphincter prosthesis is proposed, which can realize the closure of the outer contour of the anal sphincter prosthesis, and avoid the problems of mechanism failure and easy displacement due to tissue rejection hyperplasia after implantation

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