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    • 19. 发明公开
    • DYNAMIC ROD
    • 动态ROD
    • EP2194897A2
    • 2010-06-16
    • EP08833450.3
    • 2008-09-18
    • Vertiflex, Inc.
    • ALTARAC, MotiREGLOS, Joey CamiaHAYES, Stanley KyleKIM, Daniel H.
    • A61B17/70A61B17/58
    • A61B17/7019
    • A dynamic rod implantable into a patient and connectable between two vertebral anchors in adjacent vertebral bodies is provided. The rod fixes the adjacent vertebral bodies dynamically providing immediate postoperative stability and support of the spine. The rod comprises a first rod portion having a first engaging portion connected to a second rod portion having a second engaging portion. The rod includes at least a one bias element configured to bias a deflection or translation of the first rod portion relative to the second rod portion. The first engaging portion includes at least one side or integral spring formed in the first engaging portion to bias a deflection of the second rod portion relative to the first rod portion. The rod permits relative movement of the first and second rod portions allowing the rod to carry some of the natural flexion and extension moments that the spine is subject to.
    • 提供了一种可植入患者并可连接在相邻椎体内的两个椎骨锚之间的动态杆。 该杆动态地固定相邻的椎体,为脊柱提供即时的术后稳定性和支撑。 该杆包括第一杆部分,该第一杆部分具有连接到具有第二接合部分的第二杆部分的第一接合部分。 该杆包括至少一个偏置元件,该偏置元件被配置为偏置第一杆部分相对于第二杆部分的偏转或平移。 第一接合部分包括形成在第一接合部分中的至少一个侧面或一体式弹簧,以偏压第二杆部分相对于第一杆部分的偏转。 杆允许第一杆部分和第二杆部分的相对运动,从而允许杆承载脊柱所承受的一些自然的弯曲和伸展力矩。