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    • 23. 发明申请
    • DYNAMIC ROD
    • 动态ROD
    • WO2010019791A2
    • 2010-02-18
    • PCT/US2009/053740
    • 2009-08-13
    • VERTIFLEX, INC.HAYES, Stanley, KyleREGLOS, Joey, CamiaALTARAC, MotiKIM, Daniel, H.
    • HAYES, Stanley, KyleREGLOS, Joey, CamiaALTARAC, MotiKIM, Daniel, H.
    • A61B17/70A61B17/86A61F2/44
    • A61B17/7023A61B17/7004A61B17/7025
    • A dynamic rod implantable into a patient and connectable between two vertebral anchors in adjacent vertebral bodies is provided. The dynamic rod fixes the adjacent vertebral bodies together in a dynamic fashion providing immediate postoperative stability and support of the spine. The dynamic rod comprises a first rod portion dynamically connected to a second rod portion at a retainer that has separate chambers for receiving rod portions. One rod portion is configured for longitudinal movement and the other rod portion is configured for polyaxial angulation relative to the retainer. The dynamic rod is configured such that the retainer is located proximate to one of the facet joints when implanted into a patient. The dynamic rod permits relative movement of the first and second rod portions allowing the rod to carry some of the natural flexion, extension and rotation moments of the spine.
    • 提供了植入患者体内并可在相邻椎体内的两个椎骨锚固件之间连接的动态杆。 动态杆将相邻的椎体以动态方式固定在一起,提供立即的术后稳定性和支撑脊柱。 动态杆包括在保持器处动态地连接到第二杆部分的第一杆部分,其具有用于接收杆部分的单独的室。 一个杆部分构造成用于纵向移动,另一个杆部分构造成相对于保持器进行多轴成角度。 动态杆被构造成使得当植入患者时保持器位于小面关节之一附近。 动态杆允许第一和第二杆部分的相对运动,允许杆承载脊柱的一些自然弯曲,伸展和旋转力矩。