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    • 42. 发明申请
    • Implant with multi-directional pivoting
    • 植入物多向枢转
    • US20160030184A1
    • 2016-02-04
    • US14756749
    • 2015-10-07
    • Leo A. Whiteside
    • Leo A. Whiteside
    • A61F2/38
    • A61F2/385A61F2002/30624A61F2002/30632
    • Implant with multi-directional pivoting has a first component including a first articular surface and a fore-to-aft and side-to-side rotation device; and a second component including a second articular surface for mating with the first articular surface and a rotation device receptacle. The first component can be mated to the second component through cooperation of the rotation device and the rotation device receptacle, and the first component can cooperate with the second component in contact of the first and second articular surfaces and in articulation of the joint when the first component is mated to the second component. The implant can be an artificial joint which generally has natural load transfer capability. In a particular embodiment, the joint is a knee prosthesis; therein, the first and second components are femoral and tibial components, with the first articular surface a femoral condylar surface and the second articular surface a tibial condylar mating surface. In such a knee, the fore-to-aft component can be considered flexion, with the side-to-side component considered version. As well, a knee prosthesis can be provided with a device to support the patella on a smooth counter surface from full extension to flexion well past 100° and/or with a mechanism to prevent excessive downward travel of the tibial component.
    • 具有多方向旋转的植入物具有包括第一关节表面和前后的侧向旋转装置的第一部件; 以及包括用于与第一关节表面配合的第二关节表面和旋转装置容器的第二部件。 第一部件可以通过旋转装置和旋转装置插座的协作而与第二部件配合,并且第一部件可以与第一和第二关节面接触的第二部件以及当第一部件的第一部件 组件配合到第二组件。 植入物可以是通常具有自然载荷转移能力的人造关节。 在特定实施例中,关节是膝关节假体; 其中,第一和第二部件是股骨和胫骨部件,第一关节表面是股骨髁表面,第二关节表面是胫骨髁配合表面。 在这样的膝盖中,前后组件可以被认为是屈曲,侧面的组件被认为是版本。 同样,膝盖假体可以设置有用于将平滑的对置表面上的髌骨支撑完全伸展到100°以上的屈曲和/或用于防止胫骨部件的过度向下行进的机构。