Plastic knee femoral implants
US5358529A · kind A · utility
204Cited by
10References
44Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 5, 1993 |
| Grant date | Oct 25, 1994 |
| Priority date | — |
| Expiry date | Mar 5, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/3877
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A knee prosthesis includes plastic femoral and metallic (or ceramic) tibial components. The plastic femoral knee component articulates against a polished metal (e.g. cobalt alloy, titanium alloy, or stainless steel), or preferably ceramic (e.g. alumina, zirconia, nitride, or boride) patella and tibial components in a total knee implant. The polymer femoral material can be of a polymer such as ultra high molecular weight polyethylene, or a polymer blend or a fiber or particle reinforced polymer, or layered polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.