Spinal plate with screw locks and cam locks
US7662174B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2006 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Aug 6, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/8042
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bone plate for stabilizing adjacent vertebrae or ends of a bone having 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 cam bore is located between the countersunk apertures and a cam with lobe surfaces is positioned in the cam bore. Upon rotation of the cam, the lobe surfaces engage an end of the wedge shoes and move them so that the other end of the wedge shoes move into the countersunk apertures and frictionally engage the heads of the bone screws. The wedge shoe is provided with means to lock the cam in position. The wedge shoe is also provided with means to indicate that the shoe has completely engaged the head of the bone screw in the countersunk aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.