Threadless multi-lock anterior cervical plating system
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United States of America Patent
Stats
-
Apr 27, 2010
Grant Date -
Nov 25, 2004
app pub date -
Jul 1, 2004
filing date -
Feb 11, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
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Family
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