SOFT FILLED PROSTHESIS SHELL WITH DISCRETE FIXATION SURFACES
First Claim
1. A breast prosthesis for implantation in a human being, the device comprisinga shell having an exterior structured to contact tissue, the shell including a first fixation surface having a first open cell structure, and a second fixation surface having a second open cell structure different than said first open cell structure;
- the first fixation surface and the second fixation surface being positioned to encourage respectively different degrees of tissue ingrowth or tissue adhesion by the body at a body-shell interface.
1 Assignment
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Accused Products
Abstract
A soft prosthetic implant shell, such as a silicone breast implant shell, that has discrete fixation surfaces thereon for tissue adhesion. The fixation surfaces may be provided on the posterior face of the shell, as well as either on the periphery or at discrete areas on the anterior face. Band-shaped fixation surfaces may be provided on the anterior face of the shell to generally match the angle of pectoralis major or pectoralis minor muscle groups. The fixation surfaces may be roughened areas of the shell, or may be separate elements adhered to the shell.
157 Citations
10 Claims
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1. A breast prosthesis for implantation in a human being, the device comprising
a shell having an exterior structured to contact tissue, the shell including a first fixation surface having a first open cell structure, and a second fixation surface having a second open cell structure different than said first open cell structure; the first fixation surface and the second fixation surface being positioned to encourage respectively different degrees of tissue ingrowth or tissue adhesion by the body at a body-shell interface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A breast prosthesis shell for implantation in a human being, the shell manufactured by the steps of:
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(a) providing a shell precursor; (b) applying a layer of silicone elastomer to the shell precursor; (c) applying solid particles of a first configuration to a portion of the layer of silicone elastomer before the layer is fully cured; (d) applying solid particles of a second configuration to another portion of the layer of silicone elastomer before the layer is fully cured, the second configuration being different from the first configuration; and (e) fully curing the layer; and (f) dissolving the solid particles with a solvent that does not dissolve the silicone elastomer to any appreciable extent to thereby form an elastomer shell having a first open cell texture region formed by said application of the solid particles of the first configuration, and a second open cell texture region formed by said application of the solid particles of the second configuration. - View Dependent Claims (10)
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Specification