Double shell implant for cementless anchorage of joint prostheses
    4.
    发明授权
    Double shell implant for cementless anchorage of joint prostheses 有权
    双壳植入物用于关节假体的无骨水泥锚固

    公开(公告)号:US07776097B2

    公开(公告)日:2010-08-17

    申请号:US11547518

    申请日:2005-03-31

    摘要: The invention solves the problem of anchoring a prosthetic component into compliant, cancellous bone by a thin, preferably pure titanium, or a titanium-based alloy, perforated, hence hydraulically open, shell (1, 13), spaced apart from the second, non-perforated shell (2, 14). In most applications, dictated by the anatomical site of insertion, shells are approximately hemispherical in form, connected to each other at the equator. The solid shell may contain a further, articulating component of the joint, e.g. a polymer or a ceramic insert, or it may serve that function itself. One or both components of a joint prosthesis can be anchored according to the invention.

    摘要翻译: 本发明解决了通过薄的,优选纯的钛或钛基合金将假体组件锚定到柔软的松质骨中的问题,所述钛基合金是穿孔的,因此液压开放的壳(1,13)与第二非 - 穿孔外壳(2,14)。 在大多数应用中,由插入的解剖部位决定,壳体在形状上大致半球形,在赤道处彼此连接。 固体外壳可以包含另一个关节的关节部件,例如。 聚合物或陶瓷插入物,或者它可以用于其自身的功能。 关节假体的一个或两个部件可以根据本发明锚定。

    Femoral Prosthesis
    9.
    发明授权
    Femoral Prosthesis 失效
    股骨假体

    公开(公告)号:US4846841A

    公开(公告)日:1989-07-11

    申请号:US856054

    申请日:1986-04-25

    申请人: Indong Oh

    发明人: Indong Oh

    摘要: A femoral prosthesis affixable to a remnant of a natural femoral head and cooperable with an acetabular component comprising a femoral insert having a cavity for at least partially receiving the remnant and a femoral shell having a cavity for at least partially receiving the insert. The insert is affixable to the remnant without cement, and the shell is mounted on the insert by a taper lock. The outer surface of the shell has a part-spherical region for slidably cooperating with the acetabular component to accommodate articulating motion. Selection of an appropriate combination of the insert and the shell enables hemi-surface arthroplasty or total surface arthroplasty with a minimal number of prosthetic components. Replacement of the femoral shells enables a conversion to total surface arthroplasty.

    摘要翻译: 一种股骨假体,其可固定于天然股骨头的残余物并与髋臼部件配合,所述髋臼部件包括具有用于至少部分地接收所述残余物的空腔的股骨插入物和具有用于至少部分地接收所述插入物的空腔的股骨外壳。 插入物可固定在没有水泥的残留物上,并且壳体通过锥形锁定件安装在插入件上。 外壳的外表面具有与髋臼部件可滑动配合以适应关节运动的部分球形区域。 选择插入物和外壳的适当组合使得半表面关节成形术或全表面关节成形术具有最少数量的假体部件。 更换股骨外壳可以转换为全表面关节置换术。

    Apparatus for producing a conical surface on a bone
    10.
    发明授权
    Apparatus for producing a conical surface on a bone 失效
    用于在骨头上产生锥形表面的装置

    公开(公告)号:US4246895A

    公开(公告)日:1981-01-27

    申请号:US42807

    申请日:1979-05-29

    申请人: Gunther Rehder

    发明人: Gunther Rehder

    摘要: An apparatus for producing a conical, outwardly tapering surface on a bone, especially on a cylindrically pre-worked femur head of a human hip joint. The apparatus includes a drive shaft having a free end. A knife-type cutting device is arranged at the free end of the drive shaft, wherein the cutting device has an inner edge. An adjusting device is included for moving the inner cutting edge of the cutting device from an initial position essentially parallel to the longitudinal axis of the drive shaft to a position forming an acute angle relative to the longitudinal axis. The cutting edge of the cutting device is radially outwardly offset relative to the longitudinal axis of the drive shaft. In the initial position, the extent of radial offsetting is at least as great as half the diameter(r) of the bone section to be treated.

    摘要翻译: 一种用于在骨头上,特别是在人类髋关节的圆柱形预先加工的股骨头上产生锥形的向外锥形表面的装置。 该装置包括具有自由端的驱动轴。 在驱动轴的自由端设置刀式切割装置,其中切割装置具有内边缘。 包括调节装置,用于将切割装置的内切割刃从基本上平行于驱动轴的纵向轴线的初始位置移动到相对于纵向轴线形成锐角的位置。 切割装置的切割边缘相对于驱动轴的纵向轴线径向向外偏移。 在初始位置,径向偏移的程度至少等于要处理的骨段的直径(r)的一半。