Patent ID: 8308630

Claim:
A self-regulating gastric band system, comprising: a gastric band having an inflatable member; a fill tube having a fill tube lumen in fluid communication with the inflatable member; a reservoir having a reservoir lumen separate from the inflatable member and the fill tube lumen and being positioned longitudinally along and adjacent a substantial portion of the fill tube lumen, and being in fluid communication with the fill tube lumen and configured to hold a fluid; a pump coupled between the reservoir and the inflatable member and configured to transfer the fluid between the reservoir and the inflatable member through the fill tube lumen; a sensor coupled to the inflatable member and configured to sense an instantaneous pressure of the fluid in the inflatable member; and a controller coupled to the pump and receptive to the sensor and configured to receive stored pressure data and automatically control the transfer of the fluid between the reservoir and the inflatable member through the fill tube lumen based on a comparison between the stored pressure data and the instantaneous pressure of the fluid in the inflatable member.