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    • 13. 发明授权
    • Cervical disc replacement
    • 子宫颈椎间盘置换
    • US06994729B2
    • 2006-02-07
    • US10776650
    • 2004-02-11
    • Rafail ZubokAntonio ValdevitMichael W. DudasikJoseph P. Errico
    • Rafail ZubokAntonio ValdevitMichael W. DudasikJoseph P. Errico
    • A61F2/44
    • A61F2/4425A61B17/1728A61B17/7059A61B17/8033A61B17/8042A61B17/8625A61B17/866A61F2/442A61F2/4611A61F2/4684A61F2002/30301A61F2002/30578A61F2002/30616A61F2002/3065A61F2002/30841A61F2002/30843A61F2002/449A61F2002/4625A61F2002/4627A61F2002/4628A61F2002/4629A61F2230/0065A61F2230/0095Y10S623/908Y10S623/911
    • 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 at least by a concave arc having a radius of curvature A about a first axis substantially perpendicular to an anterior-posterior plane of the spinal column, and by a convex arc having a radius of curvature B about a first 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 at least by a convex arc having a radius of curvature C about a second axis substantially perpendicular to the anterior-posterior plane of the spinal column, and by a concave arc having a radius of curvature D about a second 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.
    • 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,其具有至少由凹弧限定的第一关节表面,所述第一关节表面具有围绕基本上垂直于前部的第一轴线的曲率半径A 脊柱的前平面以及具有大致垂直于脊柱侧面的第一轴线的曲率半径B的凸弧。 该装置包括具有第二铰接表面的第二构件,该第二铰接表面由凸弧限定,该凸弧具有大致垂直于脊柱前后平面的第二轴线的曲率半径C,以及具有半径为 围绕基本上垂直于脊柱侧面的第二轴线的曲率D. 第一和第二关节表面的曲率半径的尺寸设定成使得当第一和第二构件设置在椎间盘空间中时,第一和第二关节表面彼此接合,以使得第一和第二椎骨至少能够铰接 屈曲,伸展和侧弯。
    • 14. 发明授权
    • Joint simulator testing machine
    • 联合模拟试验机
    • US06865954B2
    • 2005-03-15
    • US10384981
    • 2003-03-10
    • Rafail ZubokJoseph P. ErricoMichael W. Dudasik
    • Rafail ZubokJoseph P. ErricoMichael W. Dudasik
    • A61F2/44A61F2/46G01M99/00G01N3/00G01N3/02G01N3/56G01N19/00
    • A61F2/468A61F2/4425G01N3/02G01N3/32G01N3/56G01N2203/0089G01N2203/0246
    • A machine for testing components of a joint in relative articulation under a load includes an adapter fixed to a movable joint component and having a semispherical upper surface concentric with a semispherical articulation surface of the movable component, a load assembly configured in load applying relation to the semispherical upper surface and having a load adapter providing a lower semispherical surface against which the adapter can articulate under the load, and a drive assembly configured in articulating driving relation with the adapter and having a rotatable wheel and a drive shaft mechanically coupled thereto in angular offset relation to the wheel's rotation axis. Rotating the wheel effects an articulation of the adapter under the load and in turn an articulation of the movable component under the load against a semispherical pocket of a stationary joint component, in an articulation pattern determined by the angular offset relationship.
    • 用于在负载下相对关节测试的接头部件的机器包括固定到可移动接头部件并具有与可移动部件的半球形关节表面同心的半球形上表面的适配器,配置成与 半球形上表面并且具有负载适配器,该负载适配器提供下半球面,适配器能够在负载下铰接到该半球形表面;以及驱动组件,构造成与适配器铰接驱动关系,并且具有可旋转的轮和与其成角度偏移机械联接的驱动轴 与车轮旋转轴的关系。 转动轮影响适配器在负载下的铰接,并且进而在负载下相对于固定接头部件的半球形凹部以由角度偏移关系确定的关节运动图形中的可动部件的铰接。