Patent ID: 9138309
Filing Date: 2015-09-22
Classification: A61F,A61L,B05D,B29C

Abstract:
1. A method for forming a textured implant shell, the method comprising the steps of: (a) coating a base shell with a first layer of an elastomer, the elastomer comprising a silicone base and a solvent; (b) applying porogens to the first layer of elastomer to form a first porogen-coated elastomer layer; (c) applying a second layer of the elastomer to the first porogen-coated elastomer layer; (d) applying porogens to the second layer of elastomer to form a second porogen-coated elastomer layer; (f) applying a third layer of the elastomer to the second porogen-coated elastomer layer to thereby form a multilayered porogen/elastomer coating on the base shell; (g) treating the multilayered porogen/elastomer coating on the base shell such that during the treatment the porogens become fused to one another while the uncured elastomer layers become cured, thereby forming a fused porogen scaffold surrounded by cured elastomer; and (h) removing the porogen scaffold from the cured elastomer, wherein the removing the porogen scaffold results in an interconnected open-cell textured implant shell; wherein the porogens comprise PLGA.