Biocompatible structures and compositions
Described herein are material compositions including various textures which when implanted in a mammal encourage an optimal biological response.
1. A breast implant comprising:
a fillable or inflatable elastomeric shell having an internal surface and an external surface; and
a foam bonded to the external surface of the shell, the foam being substantially pure silicone in the form of a network of interconnected silicone microspheres wherein interconnections between microspheres are formed by a phase inversion emulsion process;
the foam having a pore size of 400 μm to 550 μm and an interconnection size of 150 μm to 300 μm.
2. The breast implant according to claim 1 wherein said pore size is 470 μm.
3. The breast implant according to claim 1 wherein said interconnection size is 210 μm.
4. A soft tissue implant comprising:
a fillable or inflatable elastomeric shell having an internal surface and an external surface; and
a foam bonded to the external surface of the shell, the foam being substantially pure silicone in the form of a network of interconnected silicone microspheres wherein interconnections between microspheres are formed by a phase inversion emulsion process;
the foam having a pore size of 400 μm to 550 μm and an interconnection size of 150 μm to 300 μm.