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Polyaxial bushing for locking plate
专利权人:
发明人:
申请号:
EP10190394.6
公开号:
EP2319437B1
申请日:
2010.11.08
申请国别(地区):
EP
年份:
2013
代理人:
摘要:
A bone plate with a new design that prevents the bushing from rotating and/or dislodging from the screw hole during screw insertion. The plate (100200) is provided with through-holes (20220) having internal walls with at least one flat (22) that is configured to align with a corresponding flat (55155) provided on the outer wall of the bushing. The bushing (50150) is inserted by orienting the bushing in a direction perpendicular to the through-hole of the plate so that the center of the bushing is aligned with the center of the through-hole and the flat on the bushing is aligned with the flat on the through-hole of the bone plate. The bushing is introduced into the through-hole until the centers are aligned, and then the bushing is rotated about 90 degrees so that the bushing is captured within the through-hole of the plate. Once captured, the bushing cannot rotate, dislodge from, or come out of the plate unless the bushing is turned 90 degrees. The flat on the bushing mates with the flat on the internal wall of the hole (screw hole) to prevent it from rotating within the screw hole, and avoiding the need for a bushing guide during screw insertion.
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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