Features: 1.Analog bedridden elderly patients or patients unable to defecate. 2.vivid image, to display the standard enema position. 3.can be injected glycerin enema (from the belly side of drain tube out.) 4.abdominal wall can be opened, the intestines can be seen from the transparent end of the catheter enema. 5.stool into the intestines an-alog, and then the appropriate skills will be out from the anal area. 6.Simulation of human size, accurate anatomical structure 7.model structure for easy removal and cleaning.