Intervertebral disk prosthesis or artificial vertebral body
US8057546B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2006 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Jul 10, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0033
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intervertebral disk prosthesis or the intervertebral implant has a cavity-like middle part with a longitudinal axis, an upper end, a lower end, an upper apposition plate, and a lower apposition plate. The upper apposition plate is placed on the upper end of the middle part such that it is perpendicular to the longitudinal axis. The upper apposition plate is suited for resting against the base plate of a vertebral body. The lower apposition plate is placed on the lower end of the middle part such that it is perpendicular to the longitudinal axis. The lower apposition plate is suited for resting against the cover plate of a vertebral body. The middle part has at least two coaxially arranged plate springs, which gives the middle part a progressive spring characteristic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.