Method for locking an artificial facet between two vertebral bodies
US7699878B2 · kind B2 · utility
148Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 10, 2005 |
| Grant date | Apr 20, 2010 |
| Priority date | — |
| Expiry date | Aug 23, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/8655
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bone screw (1) is used for locking an articular facet between the superior and inferior articular processes of two vertebral bodies and is provided with a threaded shaft (2), a screw head (3) and a central axis (4). The screw head (3) is further provided with a number of grooves (5) on the periphery of the screw head (3) which run essentially parallel to said central axis (4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.