Cervical plate with backout protection
US7175623B2 · kind B2 · utility
52Cited by
30References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2004 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Mar 18, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/2835
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides a cervical plate with backout protection. In particular, a bushing residing in each of a plurality of through holes has a bottom edge that aligns with a protrusion on a screw head. The bottom edge aligning with the protrusion inhibits reverse threading or backing out of the bone screw.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.