Methods and devices to externally create a restriction on the stomach are described. The devices are contoured to fit the stomach and can be further anchored to the stomach. The degree of deployment of the extragastric restriction device is controllable after implantation. Specialized wires, catheters,...http://www.google.fr/patents/US7841978?utm_source=gb-gplus-shareBrevet US7841978 - Methods and devices for to treatment of obesity
