Method of producing prostheses for replacement of articular cartilage and prostheses so produced
US4627853A · kind A · utility
435Cited by
13References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1985 |
| Grant date | Dec 9, 1986 |
| Priority date | — |
| Expiry date | May 29, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S623/908
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Prostheses useful for articulating cartilage replacement, and which are attached to host bone without the use of cements, are derived from bone. Allogenic or xenogenic bone segments are machined into the desired shape and differentially demineralized. The completely demineralized portion has a spongy texture similar to natural cartilage, while the non-demineralized portion is a matrix into which adjacent host bone grows, thus anchoring the prosthesis. The prostheses are tanned which renders the material non-antigenic, biocompatible, and stable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.