Magnetic anchoring devices are disclosed herein. Expandable devices that are inserted into the stomach of a patient are attached to its interior wall by magnetically coupling. Such expandable devices, like inflatable balloons, comprise at least one magnetic device, which may be a magnet, a magnetizable...http://www.google.fr/patents/US7211094?utm_source=gb-gplus-shareBrevet US7211094 - Magnetic anchoring devices
