Fluted-wedge osteal prosthetic component
    88.
    发明授权
    Fluted-wedge osteal prosthetic component 失效
    流体 - 波士顿波尔多前驱体组分

    公开(公告)号:US5201767A

    公开(公告)日:1993-04-13

    申请号:US729674

    申请日:1991-07-15

    IPC分类号: A61F2/30 A61F2/34 A61F2/36

    摘要: An osteal prosthetic component of a prosthetic joint and a method of implanting an osteal prosthetic component in the medullary canal of a bone are disclosed. The osteal prosthetic component includes a stem for disposition within a medullary canal of a bone and a fluted wedge portion extending from the stem. The fluted wedge has wedge portions which define at least one flute between the wedge portions. An interference fit is formed between the wedge portions and the bone during implantation of the stem into the medullary canal. Movement of the osteal prosthetic component relative to the bone is thereby sufficiently limited to allow tissue growth into a tissue-ingrowth portion at the surface of the stem to substantially prevent micromotion of the stem relative to the bone.

    摘要翻译: 公开了一种假体关节的骨修复部件和将骨修复部件植入骨髓腔中的方法。 骨修复组件包括用于置于骨的髓管内的茎和从茎延伸的带槽的楔形部分。 带槽的楔具有楔形部分,其在楔形部分之间限定至少一个凹槽。 在将柄植入髓质管内时,在楔部和骨之间形成过盈配合。 因此骨骼修复部件相对于骨骼的运动被充分地限制,以允许组织生长进入杆的表面的组织向内生长部分,以基本上防止茎相对于骨骼的微动。

    Femoral hip prosthesis
    90.
    发明授权
    Femoral hip prosthesis 失效
    股骨假体

    公开(公告)号:US4608053A

    公开(公告)日:1986-08-26

    申请号:US490008

    申请日:1983-04-29

    申请人: Arnold Keller

    发明人: Arnold Keller

    摘要: A femoral hip joint prosthesis with a stem (6) which is intended for anchorage without cement in the femur (1) and the proximal end section of which, in order to substantially fill the spongy part of the femur, is greatly thickened in the trochanteric region (14) thereof, as compared with its distal section (12), comprises a thickening which is made in the form of a plurality of longitudinal ribs (15) which project from a slender stem core (17) on the dorsal and ventral sides thereof and which face the medial side with a broad surface and have a multiplicity of perforations (20) which are substantially closed towards the ridge (18) of the rib. As a result, the conditions for the transmission of forces to the bone tissue in the proximal end section of the prosthesis stem are improved, it being possible at the same time to exert a favorable influence on the elasticity of the stem.

    摘要翻译: 具有杆(6)的股骨髋关节假体用于在股骨(1)中的无水泥锚固并且其近端部分为了基本上填充股骨的海绵部分而在转子中大大增厚 与其远端部分(12)相比,其区域(14)包括增厚件,其形成为多个纵向肋条(15)的形式,该纵向肋条(15)从在背侧和腹侧上的细长茎芯(17)突出 并且其面向具有宽表面的内侧,并且具有多个穿孔(20),其基本上朝向肋的脊部(18)封闭。 结果,改善了在假体茎的近端部分中向骨组织传递力的条件,同时可以对柄的弹性产生有利的影响。