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Surgical access system

  • US 9,295,459 B2
  • Filed: 12/18/2014
  • Issued: 03/29/2016
  • Est. Priority Date: 02/25/2003
  • Status: Expired due to Fees
First Claim
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1. A surgical access device comprising:

  • a valve structure comprising;

    a plurality of septum layers; and

    a ring having an inner diameter for affixing the plurality of septum layers along their perimeter;

    wherein the plurality of septum layers includes a first septum layer having a hole at a center of the first septum layer;

    wherein the plurality of septum layers comprises a second septum layer comprising a central patch supported by a plurality of spokes extending from the central patch, the central patch being large enough to cover the hole of the first septum layer;

    wherein the valve structure in a first state forming a zero seal in the absence of the instrument or the arm of the surgeon extending through the valve structure, the valve structure in a second state forming an instrument seal in the presence of the instrument or the arm of the surgeon extending through the valve structure and into a patient.

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