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Implantable infusion pump

  • US 20020087147A1
  • Filed: 01/04/2001
  • Published: 07/04/2002
  • Est. Priority Date: 01/04/2001
  • Status: Active Grant
First Claim
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1. An infusion pump having a variable-volume fluid chamber for implantation in a living body, the pump comprising:

  • a housing;

    a driving spring;

    an inlet conduit, having a self-sealing penetrable member positioned therein, extends between an outer surface of the housing and the fluid chamber; and

    an outlet conduit, in communication with the fluid chamber, is adapted to deliver a fluid from the fluid chamber, wherein the self-sealing penetrable member is adapted to be accessible through a surface of a living body when the pump is implanted therein to facilitate provision of a fluid to the fluid chamber, wherein the driving spring is adapted to supply a principle force to drive fluid transiently stored in the fluid chamber into the outlet conduit, and wherein the outlet conduit extends through the driving spring.

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