Design of Transcutaneous Energy Transmission System for Artificial Anal Sphincter

For controlling anal incontinence, the new artificial anal sphincter system (AASS) with sensor feedback based on transcutaneous energy transmission is developed. The implanted components are powered by a transcutaneous transformer, which is formed from a pair of concave/convex cores. This design minimizes lateral motion of the external core. A Class-E power amplifier is chosen to drive the transmitter coil due to its high efficiency, the supply voltage of the Class-E amplifier is adjusted by a Class-E power controller. The experiment results demonstrate the artificial anal sphincter system can control anal incontinence effectively.