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Cannula anchoring system

  • US 5,653,718 A
  • Filed: 05/16/1994
  • Issued: 08/05/1997
  • Est. Priority Date: 05/16/1994
  • Status: Expired due to Fees
First Claim
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1. A cannula anchoring system comprising:

  • a cannula adapted to be inserted through a wall of an anatomical cavity and having a lumen for communication with the anatomical cavity;

    a tissue penetrating member carried by said cannula at a position adjacent the cavity wall when said cannula is inserted through the cavity wall, said tissue penetrating member having a sharp distal end and being movable between a retracted position where said sharp distal end is non-exposed and an extended position where said sharp distal end is exposed; and

    an operating mechanism coupled with said tissue penetrating member and operable to move said tissue penetrating member between said retracted and extended positions whereby said sharp distal end of said tissue penetrating member can be moved to penetrate the cavity wall to anchor said cannula therein.

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