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Polyaxial bone anchor assembly with twist-in-place insert having radially offset extensions
Polyaxial bone anchor assembly with twist-in-place insert having radially offset extensions
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机译:多轴骨锚组件,带有就地拧入的插件,具有径向偏移的延伸
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摘要
A medical implant assembly includes a polyaxial bone anchor having a shank, a receiver, a lower compression insert with planar surfaces for closely receiving an elongate connecting member with planar surfaces and a one-piece closure structure. The connecting member is made from a polymer. The closure structure engages both the connecting member and the insert with the engagement between the closure structure and the insert securely locking the polyaxial mechanism even if the connecting member exhibits creep.
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