Polyaxial bone anchor with helical capture connection, insert and dual locking assembly
申请(专利)号：
US2008/012299
申请日期：
20081030
公开/公告号：
WO2009058318A1
申请(专利权)人：
国省代号：
WO
被引量：
摘要：
A medical implant assembly includes a polyaxial bone anchor having a shank, a receiver, a lower compression insert with surfaces for closely receiving an elongate connecting member and a dual closure structure that may include a single flange or helical flange. The dual closure structure independently engages the connecting member and the lower compression insert. A threaded capture connection of the bone anchor includes a shank upper surface exclusively engaging the lower compression insert and a retainer threadably attached to the shank and spaced from the upper surface, the retainer configured for polyaxial motion with respect to the receiver prior to locking.
展开
通过文献互助平台发起求助，成功后即可免费获取论文全文。
相似文献
参考文献
引证文献
引用走势
站内活动
辅助模式
引用
文献可以批量引用啦~
欢迎点我试用！
