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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
申请号:
US12709375
公开号:
US08926671B2
申请日:
2010.02.19
申请国别(地区):
US
年份:
2015
代理人:
摘要:
A receiving part for receiving a rod for coupling the rod to a bone anchoring element, the receiving part including: a receiving part body having a channel for receiving a rod and defining an accommodation space for accommodating a head of a bone anchoring element, the accommodation space having an opening for inserting the head and a pressure element at least partially in the accommodation space, the pressure element including a first portion having a recess to receive the rod, and a second portion having a flexible portion to clamp the head, wherein the pressure element is moveable along a longitudinal axis of the receiving part body from an inserting position to insert the head, to a pre-locking position to clamp the head in the receiving part by a pre-stress exerted by the pressure element, to a locking position to lock the head in the receiving part.
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