Patent ID: 8609004
Filing Date: 2013-12-17
Classification: A61F

Abstract:
1. A method of formation of a medical implant, comprising: providing a mold cavity having a sprue orifice; providing a patch including a hollow stem and an outer flange having a peripheral edge; covering the sprue orifice with the patch such that the stem projects radially into the mold cavity; introducing a silicone elastomer into the mold cavity through the stem of the patch; causing the silicone elastomer to distribute generally evenly around the mold cavity and over at least a portion of the patch; curing the silicone elastomer to form a hollow implant shell having the patch molded thereto, the stem projecting radially inwardly into the interior of the shell, and the shell forming a flush butt joint against the peripheral edge of the flange, overlapping an inner surface of the flange and extending at least to the stem; and removing the implant shell having the patch molded thereto from the mold cavity.