Multi-lock anterior cervical plate
US6398783B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 17, 2000 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Oct 14, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S606/91
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Anatomically contoured anterior cervical plates with bone ingrowth surfaces, providing for intersegmental compressive preloading, and a rigid and locked interface to all of the bone screws, with those engaging the vertebrae deployed in highly convergent pairs. The bone screws have a tapered self-tapping leading end, an increasing root diameter with a generally constant outer diameter with a thread that is narrow and sharp throughout and an enlarged head portion capable of an interference fit to the receiving holes of the plate. Instrumentation consists of plate holders, a compression apparatus and a pilot hole forming device that interlocks with the plate. Methods for spinal compression and bone hole preparation are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.