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Trocar and seal arrangement

  • US 5,354,280 A
  • Filed: 02/19/1993
  • Issued: 10/11/1994
  • Est. Priority Date: 02/19/1993
  • Status: Expired due to Fees
First Claim
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1. A medical device, designed for minimally invasive surgical procedures, comprising:

  • a body having proximal and distal ends and a hollow interior defining a path between the proximal and distal ends;

    an object sized to pass along the path; and

    a seal mounted within the body and fluidly sealing the path with and without the object directed along the path and into the hollow interior, the seal including;

    first and second flexible, elastomeric barriers positioned along the path, the barriers having opposed convex surfaces, the barriers being positioned so the center of the opposed surfaces abut and deflect each other, the barriers each having at least one normally closed slit formed therein, said slit in the first barrier being at a different orientation from the slit in the second barrier, said barriers configured to permit the object to pass therethrough and to provide a fluid seal when the object is not positioned along the path; and

    an object seal, positioned along the path, configured to sealably engage the object when the object is directed along the path to provide a fluid seal between the object and the hollow interior.

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