The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 20, 1983
Filed:
Oct. 15, 1980
Roger Q Estes, Spokane, WA (US);
Jeffery S Estes, Spokane, WA (US);
Other;
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.