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Laparoscopic instrument and trocar systems for trans-umbilical laparoscopic surgery

  • US 8,257,254 B2
  • Filed: 12/11/2009
  • Issued: 09/04/2012
  • Est. Priority Date: 09/15/1998
  • Status: Expired due to Term
First Claim
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1. A trocar unit comprising:

  • a flexible lateral wall defining a cavity, a distal portion of which forms a surgical site, the cavity having a proximal end and an open distal end;

    a flexible first plate configured to connect to a proximal portion of the flexible lateral wall;

    a second plate configured to connect to a portion of the flexible lateral wall disposed distally with respect to the flexible first plate;

    a plurality of independent portals extending through said plates, at least one of said independent portals extending through said plates in a direction transverse to said plates, said portals being configured and dimensioned for simultaneous accommodation of surgical instrumentation; and

    sealing structure for sealing the plates wherein a portion of the flexible lateral wall is configured to seal the trocar unit within a surgical incision at the surgical site such that said flexible first plate is positioned above the surgical incision.

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