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Implantable devices and methods for controlling the flow of fluids within the body

  • US 6,007,510 A
  • Filed: 10/25/1996
  • Issued: 12/28/1999
  • Est. Priority Date: 10/25/1996
  • Status: Expired due to Fees
First Claim
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1. A device which is implantable in a mammalian body to prevent fluid from exceeding a predetermined maximum pressure, within an anatomical cavity of the mammalian body, said device comprising:

  • a tube having a side wall, closed proximal end, a distal opening, and a hollow lumen extending longitudinally from said distal opening to said closed proximal end;

    a diffusion chamber having an inner cavity defined therewithin, said diffusion chamber being formed of a material that allows fluid to diffuse outwardly therethrough but which prevents cellular ingrowth from invading the inner cavity of said diffusion chamber and mounted in fluid-tight sealing contact upon said tube such that a proximal portion of said tube, located adjacent the proximal end thereof, extends into the inner cavity of said diffusion chamber; and

    a pressure-openable aperture formed in the proximal portion of said tube that extends into the inner cavity of said diffusion chamber, said pressure-openable aperture being biased to a closed configuration, and being openable in response to fluid pressure exceeding said predetermined maximum pressure, within the lumen of said tube.

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