Intervertebral implant with multiple radii
US9101485B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2011 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Feb 7, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00317
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intervertebral implant comprises a number of components including upper and lower endplates and one or more inserts configured to be disposed between the upper and lower endplates. Complimentary curved articulation surfaces are defined on the insert-facing surfaces of the upper and lower endplates and on the corresponding upper and lower surfaces of each of the inserts. The components of the implant articulate with respect to each other along shared articulation surfaces. At least two pairs of shared articulation surfaces are defined, each pair having a different length radius. The components of the implant can be configured with retainers, such that the implant is retained in an assembled configuration when disposed within an intervertebral space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.