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    • 10. 发明申请
    • SYSTEM AND METHOD FOR JOINT ARTHROPLASTY
    • 用于关节成形术的系统和方法
    • WO2008060975A2
    • 2008-05-22
    • PCT/US2007084205
    • 2007-11-09
    • HAYES MEDICAL INCGUIDERA MICHAELSERRA MICHAEL AJUSTIN DANIEL FLEWIS CHAD W
    • GUIDERA MICHAELSERRA MICHAEL AJUSTIN DANIEL FLEWIS CHAD W
    • A61F2/38
    • A61F2/3868A61F2/389A61F2002/30383A61F2002/305A61F2002/30616A61F2002/30878
    • An orthopaedic joint prosthesis may include a first component, a bearing component, and a third component. The first component has a base and a keel protruding from the base to extend into a first bone. The keel's longitudinal axis is offset from a geometric center of the base. The base has a first articular surface and the bearing component has a second articular surface shaped to articulate with the first articular surface. A feature unitary with the first component reversibly attaches to the bearing component. The bearing component has a third articular surface shaped to articulate with a fourth articular surface on the third component. A distraction feature of the bearing component is shaped to provide alignment and/or distraction between the first articular surface and the fourth articular surface during insertion of the bearing component into a joint space between the first and second bones.
    • 整形外科关节假体可以包括第一部件,轴承部件和第三部件。 第一部件具有基部和从基部突出延伸到第一骨中的龙骨。 龙骨的纵轴偏离底座的几何中心。 该基部具有第一关节表面,并且该轴承部件具有第二关节表面,该第二关节表面成形为与第一关节表面关节连接。 与第一部件一体的特征可逆地附接到轴承部件。 该轴承部件具有第三关节表面,该第三关节表面成形为与第三部件上的第四关节表面关节连接。 轴承部件的撑开特征被成形为在将轴承部件插入第一和第二骨头之间的关节间隙期间在第一关节表面和第四关节表面之间提供对准和/或撑开。