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    • 10. 发明授权
    • Joint prosthesis with positionable head
    • 关节假体与定位头
    • US08002838B2
    • 2011-08-23
    • US12137378
    • 2008-06-11
    • Conrad L. Klotz
    • Conrad L. Klotz
    • A61F2/40A61F2/32
    • A61F2/4014A61F2/4612A61F2/4637A61F2002/30332A61F2002/30339A61F2002/30341A61F2002/30604A61F2002/30616A61F2002/4037A61F2220/0033Y10T29/49826
    • A prosthesis assembly in one embodiment includes a stem configured to be implanted in a bone and including a first coupling portion, a head having a bearing surface configured to mate with at least one of a natural opposing joint component and a prosthetic opposing joint component, the head further having a second coupling portion, a coupler including a third coupling portion and a fourth coupling portion, the third coupling portion configured to couple with the second coupling portion, and an insert including (i) a fifth coupling portion configured to couple with the fourth coupling portion in any of a plurality of rotational orientations in combination with any of a plurality of roll angles and any of a plurality of pitch angles, and (ii) a sixth coupling portion configured to couple with the first coupling portion only when the insert assumes a predetermined rotational orientation with respect to the stem.
    • 在一个实施例中的假体组件包括构造成植入骨骼并包括第一联接部分的头部,头部具有构造成与天然相对关节部件和假体相对关节部件中的至少一个配合的支承表面, 头部还具有第二联接部分,联接器包括第三联接部分和第四联接部分,所述第三联接部分被配置为与第二联接部分联接;以及插入件,其包括(i)第五联接部分, 多个旋转取向中的任何一个中的任何一个中的第四联接部分与多个滚动角度和多个俯仰角度中的任何一个相结合,以及(ii)仅当插入件 相对于杆呈现预定的旋转取向。