Oriented, cross-linked UHMWPE molding for orthopaedic applications
US6818172B2 · kind B2 · utility
83Cited by
73References
62Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2001 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Apr 10, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7532
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A process for forming an oriented orthopaedic implant prosthesis bearing, net-shape bearing, or near net-shape bearing includes the step of placing an irradiated UHMWPE preform or puck of a volume sufficient to accommodate the bearing in a compression mold and compression molding the irradiated preform. The molding is accomplished by applying heat and pressure to form the preform into a desired shape. The compression molding induces biaxial orientation in the formed bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.