Bone screw
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United States of America Patent
Stats
-
Apr 28, 2009
Grant Date -
Mar 17, 2005
app pub date -
Sep 10, 2004
filing date -
Sep 12, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A bone screw is disclosed for attaching a spinal fixing element. The bone screw includes a threaded screw shank that can be fixed in place in a bone and a screw head having a fastening area for fastening a fastening device for the spinal fixing element. The fastening area includes a threaded section for fixing the fastening device in place. The screw head includes a recess differing from a threaded section. The recess has a longitudinal axis and allows for non-sliding accommodation of an extension of the fastening device laterally to the longitudinal axis of the recess. The extension of the fastening device engages the recess, the fastening device is rotatable about the longitudinal axis of the recess, and the threaded section extends in the longitudinal direction of the recess. The threaded section may be a hole and, together with the recess, a stepped hole.
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Family
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Cited Art Landscape
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