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Apparatus and method for developing an anatomic space for laparoscopic procedures with laparoscopic visualization

  • US 6,264,604 B1
  • Filed: 09/24/1998
  • Issued: 07/24/2001
  • Est. Priority Date: 06/02/1992
  • Status: Expired due to Term
First Claim
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1. An apparatus for creating an anatomic working space between tissue layers in a body comprising:

  • a cannula having a bore extending therethrough and a distal end;

    a hollow obturator having a bore extending therethrough, said obturator insertable through said cannula;

    a balloon having a neck and an interior space in communication with said neck, said obturator extending through said cannula, said neck secured to said distal end of said cannula;

    a retainer for releasably securing said balloon to said obturator; and

    means for inflating said balloon after it is disposed between the tissue layers to cause said balloon to progressively expand to create the anatomic working space; and

    an opaque baffle disposed in said obturator bore for preventing unwanted reflections from entering a viewing element of a laparoscope when disposed therein.

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