Stem for a femoral hip-joint endoprosthesis
    1.
    发明授权
    Stem for a femoral hip-joint endoprosthesis 失效
    股骨髋关节内假体的茎

    公开(公告)号:US5456717A

    公开(公告)日:1995-10-10

    申请号:US164731

    申请日:1993-12-07

    摘要: A stem for a femoral hip-joint endoprosthesis comprises a shaft which is substantially rectangular in cross section, with a distal and a proximal end. The distal end tapers substantially conically and the proximal end (16) comprises an insertion means and an extraction means for the insertion and for the extraction of the stem into a marrow space of a femur. A cone is provided to receive a joint ball, the cone being connected to the proximal end of the shaft by way of a neck. The insertion means and the extraction means at the proximal end of the shaft are positioned substantially on the median long axis of the stem so that force transmission during insertion and extraction is coaxial.

    摘要翻译: 用于股骨髋关节内假体的茎包括横截面基本上矩形的轴,具有远端和近端。 远端基本上锥形地锥形,并且近端(16)包括插入装置和用于插入和将茎提取到股骨的骨髓空间中的提取装置。 提供锥体以接收关节球,锥体通过颈部连接到轴的近端。 轴的近端处的插入装置和提取装置基本上位于杆的中间长轴上,使得在插入和抽出期间的力传递是同轴的。

    Cementless fixation element for an artificial hip joint with rotating
cover element
    2.
    发明授权
    Cementless fixation element for an artificial hip joint with rotating cover element 失效
    用于具有旋转覆盖元件的人造髋关节的无水泥固定元件

    公开(公告)号:US5443520A

    公开(公告)日:1995-08-22

    申请号:US166388

    申请日:1993-12-07

    摘要: A metal fixation element is disclosed for receiving a plastic socket component of an artificial hip joint. The fixation element includes a frontal region which faces the pelvic bone. The frontal region has a central bore, with a screw thread to receive an insertion tool. The element also includes at least one conically tapering wall spaced from the frontal region. A self-tapping screw thread on the outer surface of the tapering wall provides for cementless fixation of the element in the pelvic bone. There is further provided an additional conically tapering wall between the frontal region and the first conically tapering wall. Three apertures are located in the frontal region. A cover element is rotatably mounted within the fixation element closely abutting the frontal region. The cover element has three equally spaced openings separated by continuous positions for selective opening and closing of the three apertures in the frontal region.

    摘要翻译: 公开了用于接收人造髋关节的塑料插座部件的金属固定元件。 固定元件包括面向骨盆骨的前部区域。 前部区域具有中心孔,具有用于接收插入工具的螺纹。 该元件还包括与前部区域间隔开的至少一个锥形锥形壁。 在锥形壁的外表面上的自攻螺纹提供元件在骨盆骨中的无骨水泥固定。 另外在前部区域和第一锥形锥形壁之间还提供了另外的锥形锥形壁。 三个孔位于正面区域。 覆盖元件可旋转地安装在固定元件内,紧贴在正面区域。 盖元件具有由连续位置分开的三个等间隔的开口,用于选择性地打开和关闭正面区域中的三个孔。