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LOW PROFILE SPINAL PROSTHESIS INCORPORATING A CANNULATED BONE ANCHOR HAVING A DEFLECTABLE POST AND A COMPOUND SPINAL ROD
专利权人:
Charles J. Winslow
发明人:
Charles J. Winslow,Steven T. Mitchell,John J. Flynn,James F. Zucherman,Ken Y. Hsu,Henry A. Klyce,H. Adam R. Klyce
申请号:
US13441578
公开号:
US20120203280A1
申请日:
2012.04.06
申请国别(地区):
US
年份:
2012
代理人:
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.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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