Bone fixation assembly and method of securement
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United States of America Patent
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Issued Date -
N/A
app pub date -
Sep 20, 2005
filing date -
Jul 7, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A bone plate is provided for fixation of spaced vertebra. The bone plate has at least one through passage for securing the plate to bone with a bone fixation screw. The threaded shaft of a bone fixation screw is inserted through a bushing located in the through passage of the bone plate and the screw is thereby threadably secured to the underlying bone and the bushing is then compressed inward against the head of the screw with cams that are actuated by rotating the bushing in the through passage whereby the screw is locked relative to the bone plate. The bushing is not only compressed inwardly against the head of the screw but is also compressed downwardly by the cams into a seat to clamp separate elements of the bone plate together.
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