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    Implantable joint prosthesis
    1.
    发明授权
    Implantable joint prosthesis 有权
    植入式关节假体

    公开(公告)号：US08092542B2

    公开(公告)日：2012-01-10

    申请号：US12624160

    申请日：2009-11-23

    申请人： Vincent Bryan ,  Alex Kunzler ,  Charles R. Clark ,  Robert Conta ,  Carlos E. Gil

    发明人： Vincent Bryan ,  Alex Kunzler ,  Charles R. Clark ,  Robert Conta ,  Carlos E. Gil

    IPC分类号： A61F2/44 ,  A61F2/28

    CPC分类号： A61B17/1757 ,  A61B17/02 ,  A61B17/1664 ,  A61B17/1671 ,  A61B17/1675 ,  A61B17/1684 ,  A61B90/10 ,  A61B90/50 ,  A61B2017/0256 ,  A61B2017/1602 ,  A61B2090/034 ,  A61F2/30742 ,  A61F2/30744 ,  A61F2/442 ,  A61F2/4425 ,  A61F2/4611 ,  A61F2002/30204 ,  A61F2002/30235 ,  A61F2002/30474 ,  A61F2002/30499 ,  A61F2002/30528 ,  A61F2002/30563 ,  A61F2002/30578 ,  A61F2002/30616 ,  A61F2002/30662 ,  A61F2002/30673 ,  A61F2002/30682 ,  A61F2002/30769 ,  A61F2002/30772 ,  A61F2002/443 ,  A61F2220/0025 ,  A61F2230/0065 ,  A61F2230/0069 ,  A61F2310/00017 ,  A61F2310/00023 ,  A61F2310/00029 ,  A61F2310/00203 ,  A61F2310/00239 ,  A61F2310/00407

    摘要： The invention relates to a surgical implant that provides an artificial diarthroidal-like joint, suitable for use in replacing any joint, but particularly suitable for use as an intervertebral disc endoprosthesis. The invention contains two rigid opposing shells, each having an outer surface adapted to engage the surfaces of the bones of a joint in such a way that the shells are immobilized by friction between their outer surfaces and the surfaces of the bone. These outer surfaces are sufficiently rough that large frictional forces strongly resist any slippage between the outer surface and the bone surfaces in the joint. They may be convex, and when inserted into a milled concavity, are immediately mechanically stable. Desirably, the outer surfaces of the shells are adapted to allow for bony ingrowth, which further stabilizes the shells in place. The inner surfaces of the shells are relatively smooth, and adapted to slide easily across a portion of the outer surface of a central body disposed between the shells. The central body has a shape that cooperates with the shape of the inner surface of the shell so as to provide a range of motion similar to that provided by a healthy joint. A flexible sheath extends between edges of the opposing shells. The inner surface of this sheath, together with the inner surfaces of the rigid shells, defines a cavity encasing the central body. At least a portion of this cavity is filled with a fluid lubricant, further decreasing the frictional force between inner surfaces of the shell and the surface of the central body.

    摘要翻译： 本发明涉及一种手术植入物，其提供适于用于替换任何关节，但特别适合用作椎间盘内假体的人造骨关节样关节。 本发明包含两个刚性的相对的壳，每个具有外表面，该外表面适合于接合骨头的表面，使得外壳通过其外表面和骨表面之间的摩擦固定。 这些外表面足够粗糙，使得大的摩擦力强烈地抵抗接合处的外表面和骨表面之间的任何滑动。 它们可以是凸形的，并且当插入铣削凹部时，它们立即机械地稳定。 理想地，壳的外表面适于允许骨向内生长，这进一步将壳稳定在适当位置。 壳的内表面相对平滑，并且适于容易地滑过设置在壳之间的中心体的外表面的一部分。 中心体具有与壳的内表面的形状配合的形状，以提供类似于由健康关节提供的运动范围。 柔性护套在相对的壳的边缘之间延伸。 该护套的内表面与刚性外壳的内表面一起限定了一个包围中心体的空腔。 该空腔的至少一部分填充有流体润滑剂，进一步降低了壳的内表面与中心体的表面之间的摩擦力。

    Drill head for use in placing an intervertebral disc device
    3.
    发明授权
    Drill head for use in placing an intervertebral disc device 失效
    用于放置椎间盘装置的钻头

    公开(公告)号：US07331963B2

    公开(公告)日：2008-02-19

    申请号：US08944234

    申请日：1997-10-06

    申请人： Vincent Bryan ,  Alex Kunzler

    发明人： Vincent Bryan ,  Alex Kunzler

    IPC分类号： A61B17/00

    CPC分类号： A61B17/1671 ,  A61B17/1659

    摘要： A drill head for preparing the bone of two opposing vertebral bodies to accept the concaval-convex shape of an endoprosthesis includes a form cutter having at least one predetermined milling surface, drive means, and a housing. The form cutter has a profile allowing the drill head to fit in the narrow space between two opposing vertebral bodies in the cervical spine of a patient. The drill head is used in a method for preparing the disc space between adjacent vertebrae of a human spine to receive an endoprosthesis therebetween, the method being performed by contacting at least one vertebral body with a movable form cutter.

    摘要翻译： 用于制备两个相对的椎体的骨头以接受内用假体的凹凸形状的钻头包括具有至少一个预定铣削表面，驱动装置和壳体的成形刀具。 成型切割机具有允许钻头安装在患者的颈椎中的两个相对的椎体之间的狭窄空间中的轮廓。 钻头用于制备人脊椎相邻椎骨之间的椎间盘间隙以在其间接受内假体的方法，所述方法通过使至少一个椎体与可移动切割刀相接触来执行。