Ion implantation of plastic orthopaedic implants
US5133757A · kind A · utility
98Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1990 |
| Grant date | Jul 28, 1992 |
| Priority date | — |
| Expiry date | Jul 31, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7532
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A load-bearing plastic orthopaedic joint implant, formed aat least partially of UHMWPE or HDPE material, and a process of subjecting at least the load-bearing surface thereof to ion implantation so as to improve its surface characteristics are disclosed. Such improved surface characteristics result, inter alia, from the formation in the treated surfaces, of increased carbon to carbon bonds, diamond-like carbon chain scissions and wherein the implanted ions do not form precipitate chemical compounds with the plastic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.