Intervertebral prosthesis with self-tapping fixing projections
US8721725B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 1, 2010 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Dec 25, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/0054
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An intervertebral prosthesis, in particular for the cervical spine, has two attachment plates connected in an articulated manner. The attachment surfaces of the attachment plates, which are configured for attachment to adjacent vertebral bodies have a base surface configured to bear on the surface of the vertebral bodies, and self-tapping fixing projections rising from the base surface. These fixing projections are formed by at least one pair of ribs which extend in opposite directions obliquely with respect to a predetermined implantation direction and whose side faces oriented more away from the implantation direction are steeper than their side faces oriented more in the implantation direction. The ribs can be toothed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.