Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis
Patent
1988-03-07
1990-01-09
Anderson, Philip
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
264 49, 264236, 264284, 264298, 264301, 264344, 604 93, 623 1, 623 66, 623901, A61F 206, C08J 926, B29C 4102
Patent
active
048925446
ABSTRACT:
A method of forming hollow, porous elastomeric bodies and hollow, duo-layered elastomeric bodies wherein one layer is porous and contiguous with the other layer which is solid by (a) coating a surface of a mandrel with a coating liquid, (b) adhering a layer of water-elutable particles onto the coated mandrel surface, (c) applying a layer of fluid elastomer composition to the particle-coated mandrel surface wherein the elastomeric composition is capable of forming a water-insoluble elastomer, (d) causing said elastomeric composition to form a cohesive mass while in contact with the particle-coated mandrel surface, (e) dissolving said elutable particles from the cohesvie mass with a water-based solvent, and (f) removing the cohesive mass from the mandrel. The coating liquid comprises water and may also further comprise a wetting agent and/or a sugar. The invention also relates to the method wherein the water-elutable particles are adhered to the mandrel surface by heating the mandrel surface. The method is useful for making prostheses, e.g., mammary prostheses and vascular prostheses.
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U.S. patent application Ser. No. 111,889, "Methods for Forming Porous-Surfaced Polymeric Bodies", filed 10-23-87.
Anderson Philip
Cornwall Susan M.
Dow Corning Wright Corporation
Maki Allan O.
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