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    Hip-joint prosthesis
    1.
    发明授权
    Hip-joint prosthesis 有权
    髋关节假体

    公开(公告)号：US08337565B2

    公开(公告)日：2012-12-25

    申请号：US12778866

    申请日：2010-05-12

    申请人： Dirk Wunderle ,  Alex Seidl

    发明人： Dirk Wunderle ,  Alex Seidl

    IPC分类号： A61F2/36

    CPC分类号： A61B17/1659 ,  A61B17/1668 ,  A61F2/36 ,  A61F2002/30151 ,  A61F2002/30153 ,  A61F2002/30158 ,  A61F2002/30199 ,  A61F2002/30205 ,  A61F2002/30945 ,  A61F2002/3686

    摘要： A method of optimizing the geometry of a femoral stem of hip joint prosthesis is disclosed. The femoral stem comprises a neck and an anchoring blade that is attached to the neck and that tapers towards a distal end with a lateral narrow side comprising a distal straight portion and a proximal arcuate portion corresponding to a curve. The transition between the distal straight portion and the proximal arcuate portion occurs at an outer lateral point. The method comprises a means of optimizing the profile of the curve of said proximal arcuate portion by a process of iterative modeling steps using a series of curves each defined by a path traced by the outer lateral point on withdrawal of a profile of the stem from a cavity of complementary shape to the stem.

    摘要翻译： 公开了一种优化髋关节假体股骨干的几何形状的方法。 股骨柄包括颈部和固定刀片，其连接到颈部，并且朝向远端逐渐变细，其侧向窄边包括对应于曲线的远端直线部分和近端弧形部分。 远端直线部分与近端弓形部分之间的过渡发生在外部侧向点处。 该方法包括通过迭代建模步骤的过程来优化所述近端弓形部分的曲线的方式的手段，所述迭代建模步骤使用一系列曲线，所述一系列曲线在由所述杆的轮廓从 与茎的互补形状的腔。

    HIP-JOINT PROSTHESIS
    3.
    发明申请
    HIP-JOINT PROSTHESIS 有权

    公开(公告)号：US20110282462A1

    公开(公告)日：2011-11-17

    申请号：US12778866

    申请日：2010-05-12

    申请人： Dirk Wunderle ,  Alex Seidl

    发明人： Dirk Wunderle ,  Alex Seidl

    IPC分类号： A61F2/36 ,  A61B17/16 ,  A61F2/32

    CPC分类号： A61B17/1659 ,  A61B17/1668 ,  A61F2/36 ,  A61F2002/30151 ,  A61F2002/30153 ,  A61F2002/30158 ,  A61F2002/30199 ,  A61F2002/30205 ,  A61F2002/30945 ,  A61F2002/3686

    摘要： A method of optimizing the geometry of a femoral stem of a hip joint prosthesis is disclosed. The femoral stem comprises a neck and an anchoring blade that is attached to the neck and that tapers towards a distal end with a lateral narrow side comprising a distal straight portion and a proximal arcuate portion corresponding to a curve. The transition between the distal straight portion and the proximal arcuate portion occurs at an outer lateral point. The method comprises a means of optimizing the profile of the curve of said proximal arcuate portion by a process of iterative modeling steps using a series of curves each defined by a path traced by the outer lateral point on withdrawal of a profile of the stem from a cavity of complementary shape to the stem. Preferably, during withdrawal of the profile of the stem from the cavity contact between lateral-distal and proximal-medial stem contours and respective associated boundaries of the cavity are maintained. A femoral stem of a hip joint prosthesis produced by this method and a hip joint prosthesis system for use in the implantation of said femoral stem into a femur are also disclosed.

    摘要翻译： 公开了一种优化髋关节假体股骨柄几何形状的方法。 股骨柄包括颈部和固定刀片，其连接到颈部，并且朝向远端逐渐变细，其侧向窄边包括对应于曲线的远端直线部分和近端弧形部分。 远端直线部分与近端弓形部分之间的过渡发生在外部侧向点处。 该方法包括通过迭代建模步骤的过程来优化所述近端弓形部分的曲线的方式的手段，所述迭代建模步骤使用一系列曲线，所述一系列曲线在由所述杆的轮廓从 与茎的互补形状的腔。 优选地，在从所述空腔中取出所述杆的轮廓时，维持所述腔的侧向远侧和近端 - 内侧茎轮廓之间的相应的相关边界。 还公开了通过该方法产生的髋关节假体的股骨柄和用于将所述股骨柄植入股骨的髋关节假体系统。