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    • 8. 发明授权
    • Systems and methods for posterior dynamic stabilization
    • 后动力学稳定的系统和方法
    • US08303631B2
    • 2012-11-06
    • US12486563
    • 2009-06-17
    • Neil DuggalT. Wade FallinDylan M. HushkaJoshua A. Butters
    • Neil DuggalT. Wade FallinDylan M. HushkaJoshua A. Butters
    • A61B17/70
    • A61B17/7043A61B17/7026A61B17/7031A61B17/7071A61B17/8033A61B17/8052A61B17/8665A61B17/8869A61B2017/7073
    • A system for providing dynamic stabilization and balance control at a vertebral motion segment has first and second bridge elements and at least one bias element. The bridge elements anchor to adjacent vertebrae with polyaxially adjustable anchoring members, and the bias elements attach to each bridge element to span between them. Each bias element has two fixation portions and a bias body extending between the fixation portions. Each bias element may comprise an elastically deformable material to provide dynamic stabilization with motion, or may comprise rigid material to provide rigid stabilization, and both bias element types may be included in one system. The bias elements are attachable to the bridge elements at discrete attachment locations, or at non-discrete attachment locations. Alternate embodiments may include three or more bridge elements on adjacent vertebrae, and multiple bias elements. A tensioning tool may provide adjustable tension to an elastically deformable bias element.
    • 用于在椎体运动部分提供动态稳定和平衡控制的系统具有第一和第二桥接元件和至少一个偏置元件。 桥梁元件锚定到具有多轴可调节锚固构件的相邻椎骨,并且偏置元件附接到每个桥梁元件以跨越它们之间。 每个偏置元件具有两个固定部分和在固定部分之间延伸的偏置体。 每个偏置元件可以包括可弹性变形的材料以提供具有运动的动态稳定性,或者可以包括刚性材料以提供刚性稳定性,并且两个偏置元件类型可以包括在一个系统中。 偏置元件可以在离散的附接位置或非分立的附接位置附接到桥元件。 替代实施例可以包括相邻椎骨上的三个或更多个桥元件以及多个偏置元件。 张紧工具可以向可弹性变形的偏置元件提供可调节的张力。