Artificial knee joint
    2.
    发明授权
    Artificial knee joint 有权
    人造膝关节

    公开(公告)号:US07309362B2

    公开(公告)日:2007-12-18

    申请号:US10787062

    申请日:2004-02-25

    IPC分类号: A61F2/38

    摘要: An artificial knee joint, which makes a drag (a contact stress) acting on a sliding surface upon bending small so as to evade an extraordinary abrasion and damage of a sliding surface of a tibia component and which prevents an bending angle from being decreased by preventing lifting of a femoral component in a rotational movement. The artificial knee joint comprises a femoral component to be secured to a distal portion of a femur and a tibia component to be secured to a proximal portion of a tibia, comprising an inner sliding surface and an outer sliding surface receiving a load of the femoral component at the tibia component.In the inner sliding surface, both of a front side and a rear side are formed in a sectional shape of circular arc in the front-to-back direction thereof, while in the outer sliding surface, a front side is formed in a sectional shape of a circular arc and a rear side is formed in a linear sectional shape in the front-to-back direction thereof.

    摘要翻译: 一种人造膝关节,其在弯曲时作用在滑动表面上的阻力(接触应力)较小,以避免胫骨部件的滑动表面的特别磨损和损伤,并且通过防止弯曲角度的减小而防止弯曲角度降低 在旋转运动中抬起股骨部件。 人造膝关节包括要固定到股骨的远侧部分的股骨部件和待固定到胫骨的近端部分的胫骨部件,包括内部滑动表面和接收股骨部件的负载的外部滑动表面 在胫骨部位。 在内侧滑动面中,前侧和后侧都沿其前后方向形成为圆弧状的截面形状,而在外侧滑动面中,前侧形成为截面形状 的圆弧和后侧沿其前后方向形成为线状截面形状。