OPEN-CELL SURFACE FOAM MATERIALS
First Claim
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1. A breast implant shell comprising:
- a fillable envelope including an open-cell foam element defining an anterior surface of the envelope, the element produced by the steps of;
a. preparing a foaming solution, the foaming solution comprising an elastomer base and a curing agent;
b. adding the foaming solution to a mold assembly having a textured surface component having a surface porosity of at least about 40%, a textured surface of the textured surface component being defined by an interconnected array of void space, wherein the foaming solution is added to the mold assembly in a manner sufficient to allow penetration of the foaming solution into the interconnected array of void space;
c. curing the foaming solution to produce an elastomeric foam material on the textured surface component; and
d. removing the textured surface component from the elastomeric foam material to obtain a foam material having an open-cell surface.
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Abstract
The present specification discloses open cell surface foam materials, methods of forming such foam materials, biocompatible implantable devices comprising such foam materials, and methods of making such biocompatible implantable devices.
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Citations
17 Claims
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1. A breast implant shell comprising:
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a fillable envelope including an open-cell foam element defining an anterior surface of the envelope, the element produced by the steps of; a. preparing a foaming solution, the foaming solution comprising an elastomer base and a curing agent; b. adding the foaming solution to a mold assembly having a textured surface component having a surface porosity of at least about 40%, a textured surface of the textured surface component being defined by an interconnected array of void space, wherein the foaming solution is added to the mold assembly in a manner sufficient to allow penetration of the foaming solution into the interconnected array of void space; c. curing the foaming solution to produce an elastomeric foam material on the textured surface component; and d. removing the textured surface component from the elastomeric foam material to obtain a foam material having an open-cell surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of making a textured material useful as a component of a fillable breast implant shell, the method comprising the steps of:
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a. preparing a foaming solution, the foaming solution comprising an elastomer base and a curing agent; b. adding the foaming solution to a mold assembly having a textured surface component having a surface porosity of at least about 40%, a textured surface of the textured surface component being defined by an interconnected array of void space, wherein the foaming solution is added to the mold assembly in a manner sufficient to allow penetration of the foaming solution into the interconnected array of void space; c. curing the foaming solution to produce an elastomeric foam material on the textured surface component; and d. removing the textured surface component from the elastomeric foam material to obtain a foam material having an open-cell surface. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A biocompatible open-cell porous material useful as a component of an implantable device, the material made by a method comprising the steps of:
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a. preparing a foaming solution, the foaming solution comprising an elastomer base and a curing agent; b. adding the foaming solution to a mold assembly, the mold assemble comprising a textured surface component having an interconnected array of void space, wherein the foaming solution is added to the mold assembly in a manner sufficient to allow penetration of the foaming solution into the interconnected array of void space; c. treating the foaming solution to produce a foam material; and d. removing the mold assembly, wherein removal of the textured surface component produces a foam material having an open-cell surface. - View Dependent Claims (17)
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Specification