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Implantable pump apparatuses

  • US 20070106199A1
  • Filed: 10/31/2005
  • Published: 05/10/2007
  • Est. Priority Date: 01/29/1998
  • Status: Active Grant
First Claim
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1. A pump assembly comprising:

  • a main body having an anterior end, a posterior end, and an interior chamber;

    an intake conduit having an open end, and an opposing end of said intake conduit fluidly coupled to said anterior end;

    an outlet conduit having an open end, and an opposing end fluidly coupled to said interior chamber at one end;

    a first valve means for selectively allowing fluid flow from said intake conduit to said interior chamber, a second valve means for selectively allowing fluid flow from said interior chamber into and through said drainage conduit;

    fluid displacement means for causing fluid flow through said main body, said fluid displacement means including an elastic bladder with elasticated sidewalls biased in an expanded state;

    whereby external pressure fluctuations cause deflection and/or expansion of said elasticated sidewalls harvesting energy from the environment and using that energy to continuously pumping fluid out of the anterior chamber.

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