Machining assembly and methods for preparing the medullary cavity of a
femur in hip arthroplasty
    1.
    发明授权
    Machining assembly and methods for preparing the medullary cavity of a femur in hip arthroplasty 失效
    髋关节置换股骨髓腔的加工组件及方法

    公开(公告)号:US5810830A

    公开(公告)日:1998-09-22

    申请号:US749279

    申请日:1996-11-13

    摘要: A machining assembly, including a of the disclosure novel broach design, are disclosed for preparing a femoral medullary cavity for receipt of a femoral prosthetic stem, wherein the configuration of the implantation site allows for the neutral alignment of the prothesis within the medullary cavity for improved rigid fixation of the prosthetic stem therein. Aspects of the inventive machining assembly include a novel broach comprising a proximal lateral recess that allows for initial avoidance of the greater trochanter during implantation, thereby resulting in the preparation of a neutrally aligned cavity with respect to the broach. The machining assembly also includes a guide and a second cutting instrument for removing the bone of the greater trochanter once neutral alignment between the medullary cavity and broach are achieved for the subsequent implantation of a neutrally aligned femoral prosthesis.

    摘要翻译: 公开了一种包括公开的新颖拉刀设计的加工组件,用于制备用于接收股骨假肢柄的股骨髓腔,其中植入部位的构型允许假体在髓腔内的中性对准以改善 其中假肢茎的刚性固定。 本发明的加工组件的方面包括新颖的拉刀,其包括近侧横向凹部,其允许在植入期间初步避免大转子,从而导致相对于拉刀准备中性对准的腔。 加工组件还包括引导件和用于去除大转子骨骼的第二切割器械,一旦实现了髓腔和拉刀之间的中性对准,以便随后植入中性对齐的股骨假体。

    Bone shaped cutting block
    3.
    发明申请
    Bone shaped cutting block 有权
    骨形切割块

    公开(公告)号:US20050240195A1

    公开(公告)日:2005-10-27

    申请号:US10830179

    申请日:2004-04-22

    IPC分类号: A61B17/00 A61B17/15 A61F5/00

    CPC分类号: A61B17/155 A61B2017/00238

    摘要: A cutting block for resecting a bone, particularly the distal femur, has a body with a first generally planar bone contacting surface to contact the resected distal surface of the femur. The body has a second surface spaced from the bone contacting surface along an axis perpendicular to said generally planar bone contacting surface. The body has a perimeter surface extending between the first and second surfaces, wherein the perimeter surface is at least partially curved with respect to the axis in both a direction generally perpendicular thereto and generally parallel thereto. The perimeter surface may be polished.

    摘要翻译: 用于切除骨头,特别是股骨远端的切割块具有主体,该主体具有第一大致平面的骨接触表面,以接触股骨的被切除的远端表面。 主体具有沿着与所述大致平面的骨接触表面垂直的轴线与骨接触表面间隔开的第二表面。 主体具有在第一和第二表面之间延伸的周边表面,其中周边表面在大体上垂直于其并大致平行于其的方向上相对于轴线至少部分地弯曲。 周边表面可以被抛光。

    Navigated femoral axis finder
    4.
    发明申请
    Navigated femoral axis finder 有权
    导航股骨轴探测器

    公开(公告)号:US20060036149A1

    公开(公告)日:2006-02-16

    申请号:US10914660

    申请日:2004-08-09

    IPC分类号: A61B5/05

    摘要: A long bone axis finder has a shaft extending along an axis and a first and second end. A tip portion is provided for releasable coupling to the shaft first end. A wedge element having an open side is provided for lateral engagement with said shaft. The wedge element is slidable along said shaft in a direction from the second to the first end. The axis finder is inserted into a long bone medullary canal until the tip portion engages a narrower portion of the canal. The wedge portion which is larger than the tip is laterally placed on the shaft and engages a portion of the canal closer to the shaft second end.

    摘要翻译: 长骨轴探测器具有沿轴线和第一端和第二端延伸的轴。 提供尖端部分用于可释放地联接到轴的第一端。 提供具有开口侧的楔形元件用于与所述轴横向接合。 楔形元件可沿着所述轴在从第二端到第一端的方向上滑动。 轴测头插入长骨髓管,直到尖端部分接合狭窄的管道。 大于尖端的楔形部分横向地放置在轴上并且使运河的一部分更接近轴的第二端。