US Patent 6875235 Prosthetic joints with contained compressible resilient members
Patent 6875235 was granted and assigned to LG on April, 2005 by the United States Patent and Trademark Office.
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In a total knee replacement (TKR), the use of a cushion element provides better wear characteristics than polyethylene (“poly”) alone. Since a metal-on-metal, metal-on-ceramic, or ceramic-on-ceramic articulating surface has better wear characteristics than metal on poly, the invention essentially provides cushioning for metal/ceramic-on-metal/ceramic joint replacements. It also allows the use of elastomers for their cushioning properties rather than their surface wear and tensile strength characteristics. The contained compressible elements could also be used as a cushion below polyethylene components, polyethylene over metal components, unicondylar knee replacements, patellar components, and prosthetic components for other parts of the body, including the hip, elbow, shoulder, wrist, and ankle.
US Patent 6875235 Prosthetic joints with contained compressible resilient members
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