A gastric space filler device for treating obesity in a patient by reducing the stomach volume comprising an inflatable space filler and a safety element secured to the space filler, wherein the safety element yields a noticeable signal for causing removal of the space filler. ...http://www.google.es/patents/US20070100367?utm_source=gb-gplus-sharePatente US20070100367 - Intragastric space filler
