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    TIBIAL COMPONENT
    4.
    发明申请
    TIBIAL COMPONENT 审中-公开

    公开(公告)号：US20170119534A1

    公开(公告)日：2017-05-04

    申请号：US15259283

    申请日：2016-09-08

    申请人： BTG International Limited

    发明人： John J. O'Connor ,  John W. GOODFELLOW ,  David MURRAY

    IPC分类号： A61F2/38

    CPC分类号： A61F2/3868 ,  A61F2/389 ,  A61F2002/30324 ,  A61F2002/30326 ,  A61F2002/30629 ,  A61F2002/30935

    摘要： A tibial knee joint prosthesis for attachment to a suitably prepared tibial bone, providing bearing portions in the lateral and medial compartments. The lateral and medial bearing surfaces of the component are inclined at different angles in the anterior to posterior direction of the knee, so that when mounted to the tibia, the lateral bearing surface of the prosthesis is higher than the medial bearing surface to the posterior side of the knee. In this way the lateral ligament is tightened progressively more than the medial ligament as the knee moves from extension to flexion, resulting in increased stability in the lateral compartment.

    Glenoid component with improved fixation stability
    6.
    发明授权
    Glenoid component with improved fixation stability 有权
    关节盂组件具有改善的固定稳定性

    公开(公告)号：US09474619B2

    公开(公告)日：2016-10-25

    申请号：US11689424

    申请日：2007-03-21

    申请人： Leo M. Reubelt ,  Peter L. Verrillo

    发明人： Leo M. Reubelt ,  Peter L. Verrillo

    IPC分类号： A61F2/40 ,  A61F2/30 ,  A61F2/46

    CPC分类号： A61F2/4081 ,  A61B17/1684 ,  A61B17/8811 ,  A61F2002/30878 ,  A61F2002/30884 ,  A61F2002/30892 ,  A61F2002/30897 ,  A61F2002/3093 ,  A61F2002/30934 ,  A61F2002/30935 ,  A61F2002/4631 ,  A61F2310/00023

    摘要： A glenoid component is provided to reduce glenoid loosening when implanted in orthopedic joint replacement/reconstruction, such for a shoulder. The glenoid component can include pegs or a keel and articulating surface geometry that uses complex, non-spherical geometry to recreate a level of constraint that is adequate, but not excessive, to thereby mitigate loosening of the glenoid component after implantation. In addition, some embodiments provide that peak stresses both within cement and at an interface of the cement and a supportive component can be reduced. Further, geometry of the pegs can allow stresses to be evenly applied to a cement mantle formed in the supportive component. Finally, the pegs can be configured to desired lengths in order to avoid placement in areas of the supportive component, for example, that have insufficient bone stock.

    摘要翻译： 提供关节盂部件以减少植入在整形外科关节置换/重建中的关节盂松动，例如肩部。 关节盂部件可以包括钉或龙骨和铰接表面几何形状，其使用复杂的非球形几何形状来重建足够但不是过度的约束水平，从而减轻植入后关节盂部件的松动。 此外，一些实施例提供了在水泥中和在水泥和支撑构件的界面处的峰值应力可以减小。 此外，销的几何形状可以使应力均匀地施加到形成在支撑部件中的水泥套。 最后，钉可以构造成所需的长度，以避免放置在支撑部件的区域中，例如，具有不足的骨料。