In-situ implanted bionic anal sphincter system based on defecation intention function reconstruction

Abstract

Disclosed is an in-situ implantation bionic anal sphincter system based on defecation intention function reconstruction. The in-situ implantation bionic anal sphincter system comprises an artificial anal sphincter module, a sensing detection and conversion module, a pelvic nerve stimulation module, an in-vitro control module and an in-vitro energy supply module, wherein the artificial anal sphincter module transmits a pressure signal acquired in vivo to the sensing detection and conversion module to generate an electrical stimulation intensity signal and generates a stimulation electrical signal with corresponding intensity through the pelvic nerve stimulation module to stimulate pelvic nerves; the in-vitro energy supply module is connected with the artificial anal sphincter module and supplies energy to the artificial anal sphincter module; and the in-vitro control module is connected with the artificial anal sphincter module so that a wearer can control defecation by himself/herself.The system has a man-machine interface and a control function, the amount of excrement in rectum or anal canal is detected through the sensing detection and conversion module, and an electric signalwith corresponding intensity is constructed based on detection information to stimulate pelvic nerves so as to activate the whole defecation reflex nerve pathway of the wearer, so that defecation intention perception function reconstruction is truly formed.

Description

technical field [0001] The invention relates to a technology in the field of medical devices, in particular to an in situ implanted bionic anal sphincter system based on reconstruction of defecation function. Background technique [0002] Fecal incontinence is often caused by sphincter or nerve damage. It is one of the common geriatric diseases in clinical practice. It refers to the loss of the ability of the human body to control the excretion of feces. influences. The artificial anal sphincter is implanted into the end of the human rectum to replace the anal sphincter to achieve the function of defecation control. In the normal human defecation mechanism, intestinal contents gradually accumulate and expand the intestinal wall to stimulate the intramural sensor to generate an impulse, thereby generating the desire to defecate through the defecation reflex. The formation of the desire to defecate requires the participation of the nervous system. The pelvic nerve in the ner...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the defect that the existing sphincter system lacks a physiological interface for human body interaction, and the human body cannot truly produce the desire to defecate without the participation of the nervous system, and proposes an in situ implanted bionic anal sphincter system based on the reconstruction of the defecation function, which has a humanized man-machine Interface and control function, detect the amount of feces in the rectum or anal canal through the sensor detection and conversion module, and construct an electrical signal of corresponding intensity based on the detection information, stimulate the pelvic nerve through the nerve stimulation electrode to activate the wearer's entire defecation Reflexive neural pathways to achieve functional reconstruction of defecation

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