发明名称 |
LOW PROFILE SPINAL PROSTHESIS INCORPORATING A CANNULATED BONE ANCHOR HAVING A DEFLECTABLE POST AND A COMPOUND SPINAL ROD |
摘要 |
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 ball-rod partially received in a socket of a housing formed in the head of the bone anchor. A centering rod received partially in the ball-rod and partially within the housing operates to align the ball-rod with the longitudinal axis of the bone anchor. Deflection of the ball-rod bends the centering rod which in turn applies a restoring force upon the ball-rod. The centering rod includes an inner-superelastic core and an outer polymer sheath. |
申请公布号 |
US2012143257(A1) |
申请公布日期 |
2012.06.07 |
申请号 |
US201113206286 |
申请日期 |
2011.08.09 |
申请人 |
WINSLOW CHARLES J.;MITCHELL STEVEN T.;FLYNN JOHN J.;ZUCHERMAN JAMES F.;HSU KEN Y.;KLYCE HENRY A.;KLYCE H. ADAM R.;SPARTEK MEDICAL, INC. |
发明人 |
WINSLOW CHARLES J.;MITCHELL STEVEN T.;FLYNN JOHN J.;ZUCHERMAN JAMES F.;HSU KEN Y.;KLYCE HENRY A.;KLYCE H. ADAM R. |
分类号 |
A61B17/70 |
主分类号 |
A61B17/70 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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