construction of an internal abdominal pouch or reservoir with a nipple valve following removal of colon, rectum, and anus. The nipple valve serves to hold the feces inside the pouch as it fills, so that no waste matter can escape to the outside of the body between drainage

Surgical technique of constructing an intra-abdominal pouch from part of the ileum. May be referred to as a Koch Pouch, or an ileo-anal reservoir. External appliance not required.

A small pouch that is created by a surgeon from a portion of the small intestine. Stools that have collected in this pouch are removed by inserting a small tube into the pouch regular basis.