| abstract |
A remotely adjustable gastric band system is provided. The system includes a gastric band, an implantable fluid reservoir, and a fluid handling device including a piezoelectric pump, and a drive or controller assembly. The piezoelectric pump includes a diaphragm having a compressible spring positioned at an actuator side of the diaphragm, and a space occupying layer disposed between the compressible spring and the actuator side. |