Bone anchor system
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United States of America Patent
Stats
-
Feb 16, 2010
Grant Date -
Feb 24, 2005
app pub date -
Aug 21, 2003
filing date -
Aug 21, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A bone anchor includes a screw portion configured to penetrate a bone. The screw portion includes a retention thread extending at least part of a length of the screw portion and a tip at a first end of the screw portion. The bone anchor includes a protrusion adjacent a second end of the screw portion. The second end is opposite the first end of the screw portion. The protrusion comprises a plurality of external sides forming a shape and a rounded interior surface enclosing a protrusion recess. The rounded interior surface includes a recess thread configured to retain a component at least partially in the protrusion recess. The protrusion has a maximum width that is less than a maximum diameter of the screw portion such that a shoulder is formed where the protrusion meets the second end of the screw portion.
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