Method and apparatus for limiting absorption of food products in specific parts of the digestive system is presented. A gastrointestinal implant device is anchored in the duodenum and extends beyond the ligament of Treitz. All food exiting the stomach is funneled through the device. The gastrointestinal...http://www.google.es/patents/US7476256?utm_source=gb-gplus-sharePatente US7476256 - Intestinal sleeve