Variable offset spinal fixation system
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United States of America Patent
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-
Sep 18, 2007
Grant Date -
Dec 16, 2004
app pub date -
Jun 11, 2003
filing date -
Jun 11, 2003
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A bone fixation system for locking a longitudinal member, such as a spinal rod, to a bone anchor element allowing a variable orientation of the axis of the longitudinal member relative to the axis of the bone anchor. A one-piece body element split along a substantially horizontal plane into upper and lower portions by a slot includes a ball element through which a longitudinal member, such as a spinal rod, may pass. A portion of a bone anchor element passes through an aperture having portions on each of the upper and lower portions of the body element. Tightening a set screw draws the upper and lower portions of the body element together and locks the bone anchor and spinal rod into the desired position.
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