LOW PROFILE SPINAL PROSTHESIS INCORPORATING A CANNULATED BONE ANCHOR HAVING A DEFLECTABLE POST AND A COMPOUND SPINAL ROD
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United States of America Patent
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app pub date -
Sep 1, 2011
filing date -
Dec 2, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A cannulated bone anchor comprising a self-centering ball-joint suitable for use in a spine stabilization prosthesis which supports the spine while providing for the preservation of spinal motion. The cannulated bone anchor has a deflectable post partially received in a socket of a housing formed in the head of the bone anchor. A centering rod received partially in the post and partially within the housing operates to align the post with the longitudinal axis of the bone anchor. Deflection of the post bends the centering rod which in turn applies a restoring force upon the post. The centering rod includes an inner-superelastic core and an outer polymer sheath.
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Cited Art Landscape
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