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Apparatus and method for removing obstructions in bodily organs or cavities

  • US 4,902,276 A
  • Filed: 04/11/1988
  • Issued: 02/20/1990
  • Est. Priority Date: 06/09/1986
  • Status: Expired due to Term
First Claim
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1. Apparatus for removal of a soluble obstruction in a bodily organ or cavity, comprising:

  • source reservoir means for containing a fluid capable of dissolving said obstruction;

    first and second fluid conduits attached to and forming a fluid circuit with said reservoir means and said organ or cavity and providing fluid communication between said reservoir means and said organ or cavity;

    pump means associated with each of said conduits to move said fluid in said conduits around said circuit;

    means for detecting and measuring fluid pressure in said organ or cavity, said means adapted to classify said pressure as high, normal or low according to predetermined physiological criteria; and

    means operatively connecting said means for detecting and measuring pressure and each of said pump means and responsive to said organ or cavity fluid pressure to cause said pump means to maintain forward fluid flow at low and normal pressure and to decrease or reverse fluid flow at high pressure.

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