Abstract
This paper reports a study on the development of a new type of artificial rectum valve system using the SMA actuator. At body temperature, the valve presses on the rectum to clog the evacuation. When the SMA actuator is actuated by providing electric energy to it, the valve opens to enable evacuation. To verify the function of the artificial rectum valve as an anal sphincter, preliminary experiments and in vivo animal experiments were conducted. The experiments verify that this valve works well as an artificial rectum valve.
