Surgery – Truss – Perineal
Patent
1980-10-15
1983-12-20
Cohen, Lee S.
Surgery
Truss
Perineal
128346, A61B 1702
Patent
active
044211074
ABSTRACT:
Surgical retractor elements and assemblies are described for holding open a surgical incision to expose the surgical area and to keep uninvolved tissues away from the surgical area without causing undue trauma to the engaged tissues. A self-retaining form includes a ring frame and a plurality of paddle assemblies angularly spaced about the ring for engaging and holding back uninvolved tissues. The paddle assemblies have arms that slide radially through a slot in the ring frame. Each of the retractor assemblies includes a paddle of a soft, resilient flexible material for flexing to prevent stress concentrations. The paddle members have a flexural modulus of elasticity between 1,000 psi and 75,000 psi. One form of paddle is provided to slidably fit over the existing blade of a hand-held retractor. Another form of assembly includes a soft, resilient paddle mounted to a hand-held handle frame. The handle includes two angularly offset gripping sections that can be comfortably gripped and held by an assistant for long periods of time.
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Fackler-"Extending the Usefulness of Self-Retaining Retractors" American Journal of Surgery, Jun. 1975; vol. 129, pp. 712-715.
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Dittmar & Penn Catalog-"Self-Retaining General Retractors".
Estes Jeffery S. B.
Estes Roger Q.
Cohen Lee S.
Sykes Angela D.
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