Intervertebral prosthetic disc
US7442211B2 · kind B2 · utility
201Cited by
70References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 2004 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Feb 11, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/0088
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A prosthetic disc for insertion between adjacent vertebrae includes upper and lower plates, a core disposed between the plates, and at least one projection extending from at least one of the upper and lower curved surfaces of the core into at least one recess of one of the inner surfaces of the plates. The recess is oversize with respect to the projection to allow sliding movement of the plate over the core while retaining the core between the plates during such sliding movement. The projection(s) may include a rod extending through an axial hole in the core, multiple surface features of the core, or the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.