Method for locking an artificial facet between two vertebral bodies
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United States of America Patent
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Mar 11, 2014
Grant Date -
May 9, 2013
app pub date -
Nov 13, 2012
filing date -
Nov 13, 2002
priority date (Note) -
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Abstract
A bone screw (1) is used for locking an articular facet between the superior and inferior articular processes of two vertebral bodies and is provided with a threaded shaft (2), a screw head (3) and a central axis (4). The screw head (3) is further provided with a number of grooves (5) on the periphery of the screw head (3) which run essentially parallel to said central axis (4).
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