Dynamic vertebral column plate system
    3.
    发明授权
    Dynamic vertebral column plate system 有权
    动态椎板柱系统

    公开(公告)号:US08814915B2

    公开(公告)日:2014-08-26

    申请号:US13587961

    申请日:2012-08-17

    IPC分类号: A61B17/88

    摘要: A vertebral column construct for stabilizing a segment of a vertebral column can include first and second plate segments, and a spring connected between adjacent plate segments. The spring can be adapted and configured to provide a predetermined preload between the first and second plate segments. Such a preload can advantageously enhance fusion across a bone graft. Alternatively, the spring can be adapted and configured to resist, by a predetermined degree, loading between the first and second plate segments. A cam can be provided on one of the first and second plate segments, wherein engagement between the cam and the cam surface prevents dynamic connection between the first and second plates. The cam can be adapted and configured to adjust a preload applied between segments, such as by adjusting tension in the spring.

    摘要翻译: 用于稳定椎骨柱段的椎骨柱构造可以包括第一和第二板段以及连接在相邻板段之间的弹簧。 弹簧可以适配和构造成在第一和第二板段之间提供预定的预载荷。 这样的预负荷可以有利地增强穿过骨移植物的融合。 或者,弹簧可以适配和构造成在预定的程度上抵抗在第一和第二板段之间的载荷。 凸轮可以设置在第一和第二板段中的一个上,其中凸轮和凸轮表面之间的接合防止了第一和第二板之间的动态连接。 凸轮可以被适配和构造成调节在段之间施加的预载荷,例如通过调节弹簧中的张力。