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    • 17. 发明授权
    • Composite material posterior dynamic stabilization spring rod
    • 复合材料后动态稳定弹簧棒
    • US09445844B2
    • 2016-09-20
    • US12730473
    • 2010-03-24
    • Missoum MoumeneJonathan FangerKevin Flaherty
    • Missoum MoumeneJonathan FangerKevin Flaherty
    • A61B17/70
    • A61B17/7011A61B17/7028
    • The present invention provides a Posterior Dynamic Stabilization (PDS) device that allows elongation, which is a critical requirement for a PDS device as it allows pedicles to travel naturally in flexion, extension, and lateral bending of the spine. This interpedicular travel preserves a more natural center of rotation unlike other PDS devices that simply allow bending. In particular, the invention involves a PDS spring rod, wherein the helix is created with composite flow molding (CFM) technology and comprises a polymer matrix reinforced with continuous carbon fibers, wherein the fibers are oriented substantially parallel to the centerline of the helix, thereby creating a high strength spring.
    • 本发明提供了一种允许伸长率的后置动态稳定(PDS)装置,其是PDS装置的关键要求,因为它允许椎弓根在脊柱的弯曲,延伸和侧向弯曲中自然地行进。 与其他简单允许弯曲的PDS设备不同,这种间隙行程保留了更自然的旋转中心。 特别地,本发明涉及一种PDS弹簧杆,其中螺旋是用复合流动模制(CFM)技术制成的,并且包括用连续碳纤维增强的聚合物基体,其中纤维基本上平行于螺旋的中心线取向,由此 创造高强度的春天。