MODULAR UNIPLANAR PEDICLE SCREW ASSEMBLY FOR USE WITH A POLYAXIAL BONE FASTENER

    公开(公告)号:US20200289166A1

    公开(公告)日:2020-09-17

    申请号:US16891126

    申请日:2020-06-03

    IPC分类号: A61B17/70

    摘要: A modular uniplanar pedicle screw assembly for use with a polyaxial bone fastener. The modular assembly comprises a uniplanar tulip assembly adapted to be coupled to a head of the polyaxial bone fastener, wherein the uniplanar tulip assembly includes a longitudinal slot. The modular assembly further includes an adapter having a lower portion and an upper portion. The lower portion is sized and shaped to be received in a recess of the bone fastener head. The upper portion extends from the lower portion and is adapted to slide along the longitudinal slot of the uniplanar tulip assembly to allow movement of the uniplanar tulip assembly in a first plane along a direction that is parallel to a longitudinal axis of the longitudinal slot, the longitudinal slot preventing movement of the uniplanar tulip assembly in a second plane lateral to the first plane relative to the bone fastener.

    Elastic member clamps
    4.
    发明授权

    公开(公告)号:US10575879B2

    公开(公告)日:2020-03-03

    申请号:US16018368

    申请日:2018-06-26

    IPC分类号: A61B17/70 A61B17/88

    摘要: The present application generally relates to orthopedic stabilization systems, and in particular, to systems including clamps. The clamps can be used in addition to or to replace hooks that grasp onto bone members, such as the lamina. One example of such a clamp is an in-line clamp that includes a central opening for receiving a rod member, a first opening for receiving a set screw and a second opening for receiving an elastic member therethrough. Another example of such a clamp is an off-set clamp that includes an upper plate, a bottom plate, and an opening for receiving a rod therein. The upper plate can be separated from the bottom plate to make space for an elastic member that can be secured within the plates. Tulip clamps that utilize one or more elastic members are also provided.