Cement restrictor for total hip operations
    3.
    发明授权
    Cement restrictor for total hip operations 失效
    用于全面遏制操作的水泥限制器

    公开(公告)号:US3866248A

    公开(公告)日:1975-02-18

    申请号:US45869274

    申请日:1974-04-08

    申请人: ABCOR INC

    摘要: A cement restrictor device adapted for use in a hip replacement operation, which device comprises: a raised cap-like upper element defining a cavity therein, the upper element having a continuous solid upper surface, the lower edge of the element adjoined to a peripheral lid element extending outwardly from the lower edge thereof, the lower crown portion of the cap-like element generally adjacent to the adjoinment to the lid element characterized by a plurality of peripheral passages therein to permit the passage of a cement material therethrough, whereby the upper element may be inserted into a hole in a bone of about the size of the upper element and cement applied to the interior cavity and forced through the passageway so as to lock the device between the lid element and the cement into the hole in the bone.

    摘要翻译: 一种适用于髋关节置换手术的水泥限制器装置,该装置包括:凸起的帽状上部元件,其中限定一个空腔,上部元件具有连续的实心上表面,该元件的下边缘邻接于外围盖 元件从其下边缘向外延伸,帽形元件的下冠部大致邻近与盖元件邻接,其特征在于多个周边通道,以允许水泥材料通过其中,由此上部元件 可以插入骨骼中的大小为上部元件的尺寸的孔中,并且施加到内部空腔并被迫通过通道,以便将装置在盖元件和水泥之间锁定到骨中的孔中。

    SHOCK ABSORBING, TOTAL DISC REPLACEMENT PROSTHETIC
    4.
    发明申请
    SHOCK ABSORBING, TOTAL DISC REPLACEMENT PROSTHETIC 审中-公开
    冲击吸收,总盘替换

    公开(公告)号:US20140012382A1

    公开(公告)日:2014-01-09

    申请号:US13934814

    申请日:2013-07-03

    发明人: KEITH L. DOTY

    IPC分类号: A61F2/44

    摘要: Devices for implantation within a Functional Spinal Unit (FSU) that can provide up to six independent degrees of freedom from a neutral position are provided. Such devices can comprise two endplates, a nucleus, a sled, and an optional, elastic boot attached to the endplates and enclosing the contents of the device, namely, the nucleus. The sled on one end of the nucleus can be moveably attached to one of the endplates and a spherical cap affixed to the opposite end of the nucleus can be operably engaged with the other endplate. The endplates can provide outer surface features that allow fusion of the plates to the superior and inferior vertebrae of a FSU and can prevent expulsion of the device immediately after implanting. The nucleus can have compliant elements or can be rigid. It can comprise a tripartite construction of three elements of possibly different materials that can be fitted together, or it can be a single unified element or can be a material with graded mechanical moduli axially and radially. The endplates and nucleus can maintain connection through the sled and the extension of the central core. Additionally, one or more specialized rotational joint stops can be utilized to provide profile-closure of the spherical joint between the top endplate and the spherical cap.

    摘要翻译: 提供了功能性脊柱单元(FSU)中植入的装置,其能够提供高达六个独立的空档自由度。 这样的装置可以包括两个端板,一个核,一个滑板,以及一个可选的,弹性的靴子,其附着在终板上并且包围装置的内容物,即核。 核的一端的滑板可以可移动地连接到一个端板,并且固定到核的相对端的球形帽可以与另一个端板可操作地接合。 端板可以提供外表面特征,其允许板融合到FSU的上下椎骨,并且可以在植入后立即防止装置的排出。 细胞核可以具有顺应性元件或可以是刚性的。 它可以包括可以装配在一起的可能不同材料的三个元件的三方结构,或者它可以是单个统一元件,或者可以是具有分级机械模量的轴向和径向的材料。 端板和核可以通过滑轨和中心芯的延伸来保持连接。 此外,可以使用一个或多个专门的旋转关节止动件来提供顶端板和球盖之间的球形接头的轮廓封闭。