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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:
发明人:
申请号:
EP09002468.8
公开号:
EP2221013B1
申请日:
2009.02.20
申请国别(地区):
EP
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 is provided includinga receiving part body (5) witha channel (13) for receiving the rod (6), andan accommodation space (19) for accommodating a head (3) of the bone anchoring element (1), the accommodation space (19) having an opening (18) for introduction of the head anda pressure element (8,8) located at least partly in the accommodation space (19), the pressure element having a flexible portion (83,83) to clamp the headwherein the pressure element (8,8) can assume in the receiving part body (5) an inserting position in which introduction of the head is permitted, a locking position in which the head is locked in the receiving part and a pre-locking position in which the head is clamped by the pre-stress exerted by the pressure element.
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