Robert T. Stone,Gregory S. Mast,Kevin A. Sawyer,Matthew L. Pease
申请号：
US12480911
公开号：
US08292800B2
申请日:
2009.06.09
申请国别(地区):
US
年份:
2012
代理人:
摘要：
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.
