Multi-composite disc prosthesis
US8038718B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2006 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Nov 9, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0019
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A multi-composite disc prosthesis is adapted to be implanted within the annulus of an evacuated disc nucleus space in a human spine. The disc prosthesis has a generally solid unitary body with a size and a shape adapted to be positioned within the annulus of the evacuated disc nucleus space. The body has an outer portion comprised of a first biomaterial and an inner portion comprised of a second biomaterial. The second biomaterial has a compressive modulus that is harder than a compressive modulus of the first biomaterial and the first and second biomaterials are chemically or physically bonded to form a multi-composite material that forms the solid body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.