Fracture-resistant, cross-linked ultra high molecular weight polyethylene shaped material and articles made therefrom
US6794423B1 · kind B1 · utility
21Cited by
5References
16Claims
0Family size
Inventor
Key dates
| Filing date | Jul 26, 2000 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Jul 26, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a tough, wear resistant Ultra High Molecular Weight Polyethylene (UHMWPE) prepared by the cross linking of a UHMWPE shaped article with irradiation doses higher than 4 Mrads, preferably higher than 5 Mrads, and most preferably less than 10 Mrads. The invention particularly provides total joint replacement devices and methods of making them for the hip, knee, elbow and shoulder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.