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Receiving part for receiving a rod for coupling the rod to a bone anchoring element and a bone anchoring device with such a receiving part
专利权人:
Lutz Biedermann
发明人:
Lutz Biedermann,Wilfried Matthis,Berthold Dannecker
申请号:
US12649194
公开号:
US08506609B2
申请日:
2009.12.29
申请国别(地区):
US
年份:
2013
代理人:
摘要:
A receiving part for coupling a rod to a bone anchoring element includes a receiving part body including a rod receiving portion having a channel for receiving a rod, and a head receiving portion for accommodating a head of a bone anchoring element, the head receiving portion having an open end and being flexible for inserting and clamping of the head and a locking ring around the head receiving portion, wherein in a pre-locking position, a spring portion on one of the locking ring or the receiving part body engages a corresponding portion on the other one of the locking ring or the receiving part body, and the locking ring exerts a first force onto the head receiving portion, and wherein in a locking position, the locking ring exerts a second force greater than the first force onto the head receiving portion to lock the head therein.
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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