Device for the dynamic stabilization of bones
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United States of America Patent
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app pub date -
Oct 26, 2006
filing date -
Apr 28, 2004
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Abandoned
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Abstract
A device for the dynamic stabilization of bones or bone fragments, especially vertebral bodies, includes a longitudinal carrier having a longitudinal axis and at least two bone anchoring devices. Each bone anchoring device has an anchoring part that attaches to bone and a connecting part that detachably fastens the longitudinal carrier to the anchoring device. The longitudinal carrier has in the axial direction a number of n flexible segments where n.gtoreq.1. Each flexible segment has a cross-sectional surface orthogonal to the longitudinal axis that corresponds neither to a circle nor to a regular polygon. The longitudinal carrier also has a number of m essentially stiff segments where m=(n+1). The total number of flexible and stiff axial segments is .gtoreq.(2n+1).
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