Damping element and device for stabilization of adjacent vertebral bodies
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United States of America Patent
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Sep 6, 2011
Grant Date -
Feb 7, 2008
app pub date -
Oct 18, 2007
filing date -
Dec 7, 2001
priority date (Note) -
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Abstract
A damping element includes: two spring elements which are coaxial with or parallel to a longitudinal axis and two axially end-side connectors, where the first spring element exhibits a spring rate F, the second spring element exhibits a spring rate f, and the spring rates F and f are different. A device stabilizing adjacent vertebrae, including N pedicle screws or hooks, where N is greater than or equal to 3 and where each pedicle screw or pedicle hook includes a receiving device receiving a longitudinal affixation device and where an element acting as a spring is inserted between two adjacent pedicle screws or pedicle hooks.
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