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MULTI-AXIAL SPINAL FIXATION SYSTEM
专利权人:
SPINE WAVE; INC.
发明人:
ROBERT POTASH,ANTHONY JAMES
申请号:
US14984154
公开号:
US20160106475A1
申请日:
2015.12.30
申请国别(地区):
US
年份:
2016
代理人:
摘要:
A spinal fixation system includes a rod and anchor devices that include a bone engaging fastener having a head defining a spherical socket. A ball insert is placed within the socket and rotated so that the ball insert is juxtaposed with the socket. The anchor device further includes a yoke defining a yoke channel for receiving the rod and a stem engaged to the ball insert captured within the socket. A sleeve disposed between the yoke channel and the fastener head supports the rod. A set screw is operable to clamp the rod against the sleeve and draw the insert into engagement within the socket. A releasable detent defined between the yoke and the fastener head is configured to releasably retain the yoke in at least one discrete position relative to the fastener. Portions of the releasable detent may also exert a frictional retention force against the fastener head.
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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