Devices and methods for augmenting or otherwise enhancing closure of body lumens comprise magnetic or magnetizable components or particles which are implanted in the wall of the lumen. The magnet fields exerted by the components or particles act to close the body lumen with a desired force....http://www.google.es/patents/US8070671?utm_source=gb-gplus-sharePatente US8070671 - Methods and devices for luminal and sphincter augmentation
Methods and devices for luminal and sphincter augmentation
