WOUND RETRACTOR
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United States of America Patent
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Issued Date -
Feb 18, 2016
app pub date -
Aug 13, 2015
filing date -
Aug 14, 2014
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Abstract
A wound retractor comprising an outer ring, an inner ring, and a flexible sheath extending therebetween is described, wherein the inner ring has the strength, rigidity and bounce back characteristics of a solid injection-molded ring yet is manufactured by extrusion techniques described herein with a 20-30% reduction in materials, resulting in reduced manufacturing costs.
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