Damping element and device for stabilization of adjacent vertebral bodies
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United States of America Patent
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May 27, 2008
Grant Date -
Mar 17, 2005
app pub date -
Mar 28, 2002
filing date -
Dec 7, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A damping element (1) includes: (a) two spring elements (2, 4) which are coaxial with or parallel to a longitudinal axis (3) and two axially end-side connectors (5, 6), where (b) the first spring element (2) exhibits a spring rate F, (c) the second spring element (4) exhibits a spring rate f, and (d) the spring rates F and f are different. A device stabilizing adjacent vertebras, comprising (a) N pedicle screws of hooks (12), where N.gtoreq.3 and where (b) each pedicle screw or pedicle hook (12) includes a receiving device (13) receiving a longitudinal affixation device (7) and where (c) an element (14) acting as a spring is inserted between two adjacent pedicle screws (12) or pedicle hooks.
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