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Trocar assembly with independently acting shield means

  • US 5,275,583 A
  • Filed: 10/05/1992
  • Issued: 01/04/1994
  • Est. Priority Date: 10/05/1992
  • Status: Expired due to Term
First Claim
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1. A trocar assembly, comprising:

  • a trocar obturator having an outer diameter, a plurality of blades joined together and forming a piercing tip, and a plurality of longitudinal cutouts formed between said plurality of blades;

    a plurality of independently acting shield means for shielding said piercing tip, mounted in said plurality of longitudinal cutouts so as to be movable between an extended position wherein said piercing tip is shielded, and a retracted position wherein said piercing tip is exposed, said plurality of shield means having a diameter substantially the same as said outer diameter of said trocar obturator; and

    means for independently biasing each of said plurality of shield means toward said extended position.

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