Spinal plate with internal screw locks
US7322984B2 · kind B2 · utility
65Cited by
127References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2005 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Jan 29, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/8047
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bone plate for stabilizing adjacent vertebrae or ends of a bone has a span for extending across the discontinuity. The span has brackets for attaching to the bone. The brackets have countersunk apertures terminating through which bone screws are placed in the bone. An eccentric cam bore is located between the countersunk apertures and, upon rotation of an eccentric cam, wedge grip shoes are slid into the countersunk apertures and frictionally engage the spherical heads of the bone screws. To prevent back-out of the bone screws, the eccentric cam is locked into the wedge grip shoes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.