Modular trial neck segment
    1.
    发明授权
    Modular trial neck segment 有权
    模块化试用颈部

    公开(公告)号:US06977000B2

    公开(公告)日:2005-12-20

    申请号:US10610460

    申请日:2003-06-30

    摘要: A modular trial neck segment is utilized for trialing a hip prosthesis for a total hip arthroplasty. The modular trial neck segment is preferably, but not necessarily, utilized for trialing a hip prosthesis for a total hip arthroplasty. The trial neck segment includes a mount attachable to a stem or broach, and a neck that is translatable on the mount for providing various neck offsets with respect to the mount and/or broach. Neck offset is changed via movement of the neck in a single plane of motion. This facilitates the use of the subject invention in minimally invasive arthroplasty wherein working dimensions are small. The present design replicates the biomechanics of the neck region of the implant. The mount and slidable neck provide a plurality of neck offsets and/or neck lengths for trialing a final prosthesis in a single device.

    摘要翻译: 一个模块化的试验颈部段用于对髋关节置换术进行全髋关节置换术。 模块化试验颈部段优选但不一定用于对全髋关节置换术的髋关节假体进行试验。 试验颈部部分包括可附接到杆或拉刀的安装件,以及可在安装件上平移的颈部,用于相对于安装件和/或拉刀提供各种颈部偏移。 颈部偏移通过颈部在单个运动平面中的运动而改变。 这有利于本发明在其中工作尺寸小的微创关节成形术中的应用。 本设计复制了植入物颈部区域的生物力学。 安装和可滑动的颈部提供多个颈部偏移和/或颈部长度,用于在单个装置中试验最终假体。

    Tibial implant base
    2.
    发明授权

    公开(公告)号:US08740984B2

    公开(公告)日:2014-06-03

    申请号:US12574009

    申请日:2009-10-06

    IPC分类号: A61F2/38

    摘要: An orthopedic prosthesis includes a tibial implant and a tibial insert. The tibial implant includes an upper surface, a medial side, a lateral side and a first locking structure provided on the upper surface where the medial side and the lateral side of the tibial implant are defined by a medial-lateral midline. The tibial insert includes a second locking structure provided on its bottom surface. The first and second locking structures are configured for engaging each other along an engagement direction vector when the tibial insert is inserted into the tibial base towards the posterior side. The engagement direction vector is angled away from the medial-lateral midline of the tibial implant towards the medial side of the tibial implant by a predetermine angle.