Spinal constructs with improved load-sharing
    40.
    发明授权
    Spinal constructs with improved load-sharing 有权
    脊柱结构具有改善的负荷分担

    公开(公告)号:US09072546B2

    公开(公告)日:2015-07-07

    申请号:US12869245

    申请日:2010-08-26

    IPC分类号: A61B17/70

    摘要: A spinal construct for implantation in a patient to provide stabilization to spinal structure with improved load sharing includes a flexible spinal rod having a first end and a second end, the spinal rod being configured to provide stabilization to spinal structure. It also includes a first bone fastener configured to securely attach to the flexible spinal rod and a second bone fastener configured to securely attach to the flexible spinal rod. The second bone fastener is a dynamic fastener arranged to provide motion in one direction more than another direction. The flexible spinal rod and the second bone fastener are oriented to cooperate in a manner that achieves load sharing by dynamically flexing under applied loads in a manner that distributes stresses and strains between the flexible spinal rod and the second bone fastener.

    摘要翻译: 用于植入患者以提供具有改善的负荷共享的脊柱结构的稳定性的脊柱构造包括具有第一端和第二端的柔性脊柱杆,所述脊柱杆被配置为提供对脊柱结构的稳定性。 其还包括构造成牢固地附接到柔性脊椎杆的第一骨紧固件和构造成牢固地附接到柔性脊椎杆的第二骨紧固件。 第二骨紧固件是被设置为沿一个方向提供比另一个方向更大的运动的动态紧固件。 柔性脊柱杆和第二骨紧固件被定向成以通过在施加的负载下动态地弯曲以在柔性脊骨杆和第二骨紧固件之间分布应力和应变的方式来实现负载共享的方式协作。