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Implantable Pump System

  • US 20090312785A1
  • Filed: 06/09/2009
  • Published: 12/17/2009
  • Est. Priority Date: 06/11/2008
  • Status: Active Grant
First Claim
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1. A system for facilitating obesity control comprising:

  • a gastric banding device including an inflatable portion;

    an implantable fluid reservoir couplable to the inflatable portion;

    an implantable fluid handling device in communication with the fluid reservoir and includinga body at least partially defining a pump chamber having an inlet port coupled to the fluid reservoir and an outlet port coupled to the inflatable portion,a piezoelectric diaphragm assembly including a working side defining a surface of the pump chamber and a substantially opposing actuator side, anda compressible spring assembly positioned at the actuator side of the diaphragm assembly; and

    a drive assembly effective to cause piezoelectrical actuation of the diaphragm assembly thereby causing fluid to be drawn into the inlet port and out of the outlet port of the pump chamber.

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