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    • 92. 发明授权
    • Modular percutaneous spinal fusion system and method
    • 模块化经皮脊髓融合系统及方法
    • US07766943B1
    • 2010-08-03
    • US11464161
    • 2006-08-11
    • T. Wade FallinDaniel F. Justin
    • T. Wade FallinDaniel F. Justin
    • A61B17/70
    • A61B17/7001A61B17/7085
    • A posterior spinal fusion system may include pedicle screws and one or more segments designed to be attached to the implanted pedicle screws via nuts to fuse spinal motion segments in a modular fashion. The pedicle screws may have semispherical receiving surfaces, and each segment may have mounting portions at both ends, with corresponding semispherical engagement surfaces. The nuts may also have semispherical surfaces. The semispherical surfaces permit polyaxial adjustment of the relative orientations of the segments and pedicle screws. Each mounting portion may have a passageway therethrough to receive the proximal end of the corresponding pedicle screw; each passageway may intersect the edge of the corresponding engagement surface to facilitate percutaneous placement. Such placement may be carried out through cannulae to provide a minimally invasive (MIS) implantation procedure.
    • 后部脊柱融合系统可以包括椎弓根螺钉和一个或多个设计成通过螺母连接到植入的椎弓根螺钉上的节段,以模块化方式融合脊柱运动节段。 椎弓根螺钉可以具有半球形接收表面,并且每个部分可以在两端具有相应的半球形接合表面的安装部分。 螺母也可以具有半球面。 半球形表面允许多段调节片段和椎弓根螺钉的相对取向。 每个安装部分可以具有通过其的通道,以容纳对应的椎弓根螺钉的近端; 每个通道可以与相应的接合表面的边缘相交以便于经皮放置。 这种放置可以通过套管进行以提供微创(MIS)植入程序。