Mammary implant
First Claim
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1. An article of manufacture suitable for use as a body implant, said article comprising a supple liquid-impermeable sac defining a cavity, said cavity containing an inert stable liquid, said sac comprising a continuous film of a cured polyphosphazene elastomer composition.
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Abstract
A prosthesis for subcutaneous implantation such as a mammary implant used in reconstructive surgery is made from a polyphosphazene elastomer (e.g. polyfluoroalkoxy phosphazene) sac containing a silicone gel. The sac is essentially impermeable to the silicone gel fill and overcomes a gel migration problem encountered with implants made using polysiloxane sacs.
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Citations
34 Claims
- 1. An article of manufacture suitable for use as a body implant, said article comprising a supple liquid-impermeable sac defining a cavity, said cavity containing an inert stable liquid, said sac comprising a continuous film of a cured polyphosphazene elastomer composition.
- 22. A prosthesis for subcutaneous implantation in a patient having need for such implantation, said prosthesis comprising a leak-proof flexible sac containing a polysiloxane gel or oil, said sac comprising a continuous cured poly-fluoroalkoxy-substituted phosphazene elastomer wall which is substantially impermeable to said polysiloxane gel or oil.
- 28. An article of manufacture suitable for use as a liquid impermeable sac useful as a body implant for containing an inert stable liquid said article comprising a continuous membrane in the shape of said body implant forming a cavity, said membrane comprising a cured polyphosphazene elastomer composition.
Specification