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Wound retractor with gel cap

  • US 7,883,461 B2
  • Filed: 06/01/2010
  • Issued: 02/08/2011
  • Est. Priority Date: 10/14/2005
  • Status: Active Grant
First Claim
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1. A surgical access device comprising an adjustable wound retractor comprising:

  • a flexible inner ring insertable into a body cavity;

    an outer ring comprising;

    a longitudinal axis;

    an annular axis;

    a resilient, ring-shaped body;

    a first circumferential lumen extending through the body;

    a second circumferential lumen extending through the body, axially spaced from the first circumferential lumen;

    a first split-hoop comprising a first end and a second end disposed in the first lumen; and

    a second split-hoop comprising a first end and a second end disposed in the second lumen; and

    a cross section comprising a longer axis; and

    a flexible, tubular sleeve comprising a first end coupled to the inner ring and a second end coupled to the outer ring,whereinthe outer ring comprises resting states in which the outer ring is substantially non-compliant and the longer axis of the cross section of the outer ring is substantially parallel with the longitudinal axis of the outer ring;

    rotating the outer ring around the annular axis winds the tubular sleeve therearound, adjusting a length of the tubular sleeve between the inner ring and the outer ring;

    rotating the outer ring around the annular axis converts the outer ring between adjacent resting states through intervening transitional states; and

    in the transitional states, one of the first split-hoop and second split-hoop defines the annular axis.

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