Artificial intervertebral disc
US5458643A · kind A · utility
727Cited by
11References
3Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 1, 1994 |
| Grant date | Oct 17, 1995 |
| Priority date | — |
| Expiry date | Feb 1, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00203
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A prosthesis used for a damaged bone, an artificial articular cartilage or an artificial intervertebral disc being characterized in that the prosthesis is a composite body comprising polyvinyl alcohol hydrogel and ceramic or metallic porous body. With this prosthesis, PVA hydrogel enhances lubrication and shock absorbing functions, and the porous body allows the ingrowth and ossification of the bone tissue of a living body therein to affinitively connect said hydrogel to the bones of the living body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.