An artificial anal sphincter system based on a novel micro-pump

The artificial anal sphincter system can simulate the normal operation of the anal,thus solving the anal incontinence and relieving the psychological pressure of the patients with their rectum cut out.This article researches into the core operation part of the artificial anal sphincter system,introducing a novel micro-pump based on the nut and screw structure.It also presents the transcutaneous power transmission module according to the power required by the pump and measurement of the prototype.The test indicates that the pump can satisfy the basic requirement of the artificial anal sphincter system which can therefore control the anal incontinence.