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    Cervical disc replacement
    47.
    发明授权
    Cervical disc replacement 失效
    子宫颈椎间盘置换

    公开(公告)号：US06997955B2

    公开(公告)日：2006-02-14

    申请号：US10776651

    申请日：2004-02-11

    申请人： Rafail Zubok ,  Antonio Valdevit ,  Michael W. Dudasik ,  Joseph P. Errico

    发明人： Rafail Zubok ,  Antonio Valdevit ,  Michael W. Dudasik ,  Joseph P. Errico

    IPC分类号： A61F2/44

    CPC分类号： A61F2/4425 ,  A61B17/1728 ,  A61B17/7059 ,  A61B17/8033 ,  A61B17/8042 ,  A61B17/8625 ,  A61B17/866 ,  A61F2/442 ,  A61F2/4611 ,  A61F2/4684 ,  A61F2002/30301 ,  A61F2002/30578 ,  A61F2002/30616 ,  A61F2002/3065 ,  A61F2002/30841 ,  A61F2002/30843 ,  A61F2002/449 ,  A61F2002/4625 ,  A61F2002/4627 ,  A61F2002/4628 ,  A61F2002/4629 ,  A61F2230/0065 ,  A61F2230/0095 ,  Y10S623/908 ,  Y10S623/911

    摘要： An apparatus for replacing at least a portion of an intervertebral disc in a spinal column includes: a first member having a first vertebral contact surface for engagement with an endplate of a first vertebral bone in the spinal column, and having a first articulation surface that is defined by a plurality of concave arcs each having a respective radius of curvature about a corresponding axis substantially perpendicular to an anterior-posterior plane of the spinal column, and a plurality of convex arcs each having a respective radius of curvature about a corresponding axis substantially perpendicular to a lateral plane of the spinal column; and a second member having a second vertebral contact surface for engagement with an endplate of a second vertebral bone in the spinal column, and having a second articulation surface that is defined by a plurality of convex arcs each having a radius of curvature about a corresponding axis substantially perpendicular to the anterior-posterior plane of the spinal column, and a plurality of concave arcs each having a radius of curvature about a corresponding axis substantially perpendicular to the lateral plane of the spinal column, wherein: an intervertebral disc space is defined substantially between the first and second endplates of the first and second vertebral bones, and the radii of curvature of the first and second articulation surfaces are sized such that the first and second articulation surfaces engage one another when the first and second members are disposed in the intervertebral disc space to enable the first and second vertebral bones to articulate in at least one of flexion, extension and lateral bending.

    摘要翻译： 用于替换脊柱中的椎间盘的至少一部分的装置包括：第一构件，具有第一脊椎接触表面，用于与脊柱中的第一椎骨的端板接合，并且具有第一铰接表面， 由多个凹弧限定，每个凹弧各自具有围绕基本上垂直于脊柱的前 - 后平面的对应轴线的相应曲率半径，以及多个凸弧，每个凸弧具有相应的基本上垂直的轴线的曲率半径 到脊柱的侧面; 以及具有第二脊椎接触表面的第二构件，用于与脊柱中的第二椎骨的端板接合，并且具有由多个凸弧限定的第二关节表面，所述第二铰接表面具有围绕相应轴线的曲率半径 基本上垂直于脊柱的前 - 后平面，以及多个凹弧，每个凹弧具有围绕基本上垂直于脊柱的横向平面的对应轴线的曲率半径，其中：椎间盘空间基本上在 第一和第二椎骨的第一和第二终板以及第一和第二关节表面的曲率半径的尺寸使得当第一和第二构件设置在椎间盘中时，第一和第二关节表面彼此接合 空间，以使第一和第二椎骨能够在至少一个柔性中铰接 延伸和横向弯曲。