Stabilization device for the dynamic stabilization of vertebrae or bones and rod like element for such a stabilization device
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United States of America Patent
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Sep 4, 2012
Grant Date -
Feb 25, 2010
app pub date -
Sep 23, 2009
filing date -
Mar 5, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A stabilization device includes a first bone anchoring element, a second bone anchoring element, and a rod-shaped element for connecting the first and the second bone anchoring elements. The rod-shaped element includes a curved section, that undergoes an elastic deformation under the action of a force acting on the rod-shaped element via an anchoring element. The rod-shaped element and the anchoring elements are arranged so that deformation occurs when a force acts in a main direction of motion of bone parts or vertebra relative to each other, whereas a deformation is suppressed when a force acts in a direction that is essentially perpendicular to the main direction of motion.
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