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Trocar facilitator for endoscopic surgery

  • US 5,407,427 A
  • Filed: 03/10/1993
  • Issued: 04/18/1995
  • Est. Priority Date: 06/16/1992
  • Status: Expired due to Term
First Claim
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1. A trocar facilitator for assisting in the establishment of a port for endoscopic surgery through the superficial tissue and peritoneum of a patient'"'"'s body and for achieving pneumoperitoneum in said body, said port being established by use of a trocar and a cannula, said facilitator comprising:

  • a guide portion for receiving said trocar and said cannula, said guide portion comprising two releasably engageable halves which form a hollow channel for slidably receiving said trocar and said cannula, said halves being removable from said port without removing said cannula;

    a corkscrew-like blade portion removably connected to said guide portion for rotatably engaging said tissue to allow said tissue to be lifted away from vital organs of said patient, and for penetrating said peritoneum of said patient, said blade portion having a proximal and a distal end; and

    a passageway through said guide and said blade portions, said passageway through said blade portion being helical, whereby gas may be administered through said passageway and into the body of said patient,said passageway having a valve formed near said distal tip, said valve being closed during insertion of said blade portion but open following insertion whereby insufflation gas may pass into the body of the patient.

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