A device and a method for treating a medical condition include a reversible member disposed in a patient's gastro-intestinal tract, and a dispensing member coupled to the reversible member that delivers a drug and/or a noxious when a predetermined substance is detected. In a different embodiment, the...http://www.google.es/patents/US20070178160?utm_source=gb-gplus-sharePatente US20070178160 - Gastro-intestinal device and method for treating addiction
Gastro-intestinal device and method for treating addiction