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    • 10. 发明申请
    • Pedicle screw constructs for spine fixation systems
    • 脊柱固定系统的椎弓根螺钉构造
    • US20050187548A1
    • 2005-08-25
    • US11034300
    • 2005-01-12
    • Michael ButlerJim YoussefAlan Hilibrand
    • Michael ButlerJim YoussefAlan Hilibrand
    • A61B17/56A61B17/58A61B17/70
    • A61B17/7038A61B17/7032A61B17/7034A61B17/7037
    • A pedicle screw coupling construct for a pedicle screw construct provides fixation of angular orientation thereof relative to a pedicle screw independent of fixation of a received spinal rod to the coupling construct. The pedicle screw construct forms one component or element in a spinal fixation system. The independent fixation coupling construct also provides for fixation of the angular orientation of the coupling construct while the coupling construct has received the spinal rod. In another form, a coupling head or construct is configured to allow a pedicle screw shaft to pass therethrough but retain the pedicle screw head for rotation of the coupling head about the pedicle screw head. The coupling head or construct is also configured to allow at least a 45° arc of pivot or articulation about a pedicle screw shaft relative to a longitudinal axis of a spinal rod received in the body. This allows the head with a received spinal rod to fold, bend or pivot relative to the pedicle screw shaft, particularly to a greater degree than the prior art.
    • 用于椎弓根螺钉构造的椎弓根螺钉联接构造提供了相对于椎弓根螺钉的角度定向的固定,而不管接收到的脊柱杆固定到联接构件。 椎弓根螺钉构造在脊柱固定系统中形成一个组件或元件。 独立的固定联接构造还提供了联接结构的角度定向的固定,同时联接构件已经接收到脊柱杆。 在另一种形式中,联接头或构造被配置为允许椎弓根螺钉轴穿过其中,但是保持椎弓根螺钉头以使联接头围绕椎弓根螺钉头转动。 联接头或构造物还构造成允许相对于容纳在体内的脊柱杆的纵向轴线,围绕椎弓根螺钉轴枢转或关节的至少45°弧。 这允许具有接收的脊柱杆的头部相对于椎弓根螺钉轴折叠,弯曲或枢转,特别是比现有技术更大的程度。