A gastric balloon includes a scaffold structure, one or more internal inflatable compartments within the scaffold structure, and one or more inflatable bladders formed over the space-filling compartment. The gastric balloon may be deployed transesophageally using a gastroscope and is inflated in situ,...http://www.google.com/patents/US20050267595?utm_source=gb-gplus-sharePatent US20050267595 - Methods for gastric volume control
