Surgery – Specula – Retractor
Reexamination Certificate
2007-07-03
2007-07-03
O'Connor, Cary E. (Department: 3732)
Surgery
Specula
Retractor
Reexamination Certificate
active
11218412
ABSTRACT:
A surgical wound retractor is adapted to dilate a wound to a desired diameter. The retractor includes first and second rings, each having a diameter greater than that desired for the wound. The first and second rings are adapted for disposition interiorly and exteriorly of the wound, respectively. A plurality of retraction elements is disposed in a generally cylindrical relationship between the first and second rings and extends through the wound to exert a radial retraction force on the wound that is dependent on the distance separating the first and second rings. Retraction elements, both distensible and non-distensible, are contemplated with appropriate attachment elements at the rings to provide for variations in the retraction force. With a suitable retraction sleeve, a third ring can be provided to form a circumferential retainer to vary the retraction force. Rings can also be made inflatable or self-expanding to vary the retraction force.
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Adlparvar Payam
Bowes Robert R.
Brustad John R.
Dulak Gary R.
Dunn Michael J.
Applied Medical Resources Corporation
Majdali David G.
O'Connor Cary E.
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