# US 2014/0156002 A1 · Methods for creating foam-like texture > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0156002 A1 - Document ID: US20140156002A1 - Status: Published application - Kind: A1 - Application number: 14/174,133 - Filed: 2014-02-06 - Published: 2014-06-05 - Earliest claimed: 2010-11-16 - Assignees: Allergan, Inc. - Applicants: Allergan, Inc. - Inventors: Jordan Thompson; Alexei Goraltchouk; Kevin Ma - Web page: https://patentgrep.com/patent/US20140156002A1 ## CPC - A61F 2/12: Mammary prostheses - A61L 27/34: Macromolecular materials - A61L 27/56: Porous materials, {e.g. foams or sponges} - B29C 43/02: of articles of definite length, i.e. discrete articles {(B29C35/0227 takes precedence)} - B29C 59/005: {characterised by the choice of material} - B29C 59/02: by mechanical means, e.g. pressing {(B29C59/007 takes precedence; embossing expanded porous articles B29C44/5627)} - A61F 2/0077: {Special surfaces of prostheses, e.g. for improving ingrowth (A61F2/30767 takes precedence)} - A61F 2240/001: Designing or manufacturing processes - A61L 2400/08: Methods for forming porous structures using a negative form which is filled and then removed by pyrolysis or dissolution - A61L 2400/18: Modification of implant surfaces in order to improve biocompatibility, cell growth, fixation of biomolecules, e.g. plasma treatment - A61L 2430/04: for mammary reconstruction - B29C 41/14: Dipping a core {(B29C41/10 takes precedence)} - B29C 65/483: {Reactive adhesives, e.g. chemically curing adhesives} - B29C 66/71: {characterised by the composition of the plastics material of the parts to be joined (welding bar compositions B29C65/125)} - B29C 66/727: {being porous, e.g. foam} - B29L 2031/7532: {Artificial members, protheses} - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) - A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K) - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES ## Abstract Methods for creating a foam-like texture on an implantable material are provided. More particularly, methods for creating foam-like texture on implantable silicone materials are provided. ## Claims ### Claim 1 A textured breast prosthesis made by the steps of: applying a base coat to a breast implant mandrel; applying to the base coat, an uncured silicone dispersion; placing a polyurethane foam sheet onto the silicone dispersion; applying pressure to integrate the polyurethane foam and the silicone dispersion; curing the silicone dispersion with the polyurethane foam integrated thereto; after the step of curing, removing the polyurethane foam from the cured silicone by application of a solvent capable of dissolving polyurethane, to thereby obtain a textured breast implant shell. ### Claim 2 (depends on 1) The prosthesis of claim 1 wherein the thickness of the polyurethane foam sheet is between about 0.1 mm to about 250 mm. ### Claim 3 (depends on 1) The prosthesis of claim 1 wherein the thickness of the silicone dispersion is between about 0.1 mm to about 50 mm. ### Claim 4 (depends on 1) The prosthesis of claim 1 wherein the solvent is hydrochloric acid. ### Claim 5 (depends on 1) The prosthesis of claim 1 wherein the solvent is hexane. ### Claim 6 (depends on 1) The prosthesis of claim 1 wherein the solvent is dimethyl sulfoxide (DMSO). ### Claim 7 (depends on 1) The prosthesis of claim 1 wherein the solvent is hydrochloric acid. ### Claim 8 A textured breast prosthesis made by the steps of: applying a texturing material onto a mandrel having the shape of a breast implant; placing a polyurethane foam sheet onto the texturing material; causing integration between the texturing material and the polyurethane foam sheet by pressing the polyurethane foam sheet into the texturing material; generating a composite of cured texturing material and polyurethane foam by curing the texturing material after the step of causing integration; and after the step of generating the composite by curing, removing the polyurethane foam from the cured texturing material by application of a solvent of polyurethane to the composite, to thereby obtain a textured breast implant shell. ### Claim 9 (depends on 8) The prosthesis of claim 8, further comprising using clamps to stabilize the polyurethane foam sheet as it is placed onto and integrated with the texturing material. ### Claim 10 (depends on 8) The prosthesis of claim 8, wherein the texturing material is a silicone material. ### Claim 11 (depends on 8) The prosthesis of claim 8 wherein the thickness of the polyurethane foam sheet is between about 0.1 mm to about 250 mm. ### Claim 12 (depends on 8) The prosthesis of claim 8 wherein the thickness of the silicone dispersion is between about 0.1 mm to about 50 mm. ### Claim 13 (depends on 8) The prosthesis of claim 8 wherein the solvent is hydrochloric acid. ### Claim 14 (depends on 8) The prosthesis of claim 8 wherein the solvent is hexane. ### Claim 15 (depends on 8) The prosthesis of claim 8 wherein the solvent is dimethyl sulfoxide (DMSO). ### Claim 16 (depends on 8) The prosthesis of claim 8 wherein the solvent is hydrochloric acid.