Polyaxial bone anchor incorporating a two position saddle assembly

    公开(公告)号:US10039572B2

    公开(公告)日:2018-08-07

    申请号:US14618233

    申请日:2015-02-10

    IPC分类号: A61B17/70

    摘要: A polyaxial bone anchor assembly, comprising: a threaded screw portion comprising a head end; a head body disposed concentrically about the head end of the threaded screw portion; and a saddle assembly disposed within the head body and selectively engaging the head end of the threaded screw portion; wherein, when the saddle assembly is translated within the head body into a first locked position, the head body is coupled to the threaded screw portion such that disengagement of the head body from the threaded screw portion is allowed; and wherein, when the saddle assembly is translated within the head body into a second locked position, the head body is coupled to the threaded screw portion such that disengagement of the head body from the threaded screw portion is prevented.

    Guided rod and anchor system for use in a minimally invasive surgery spinal procedure or the like

    公开(公告)号:US09700358B2

    公开(公告)日:2017-07-11

    申请号:US14887705

    申请日:2015-10-20

    申请人: James Q. Spitler

    发明人: James Q. Spitler

    IPC分类号: A61B17/70

    CPC分类号: A61B17/7085

    摘要: A bone anchor system utilizing an extended tab tulip having rails which extend from a point above the skin of a patient to a point proximal a bone anchor, and a slide member pivotally coupled to a rod, the slide member having engagement features which align to the rails of the extended tabs such that the coupled rod assembly is easily and efficiently guided to a position more proximate to the bone anchor and the rod is simultaneously pivoted into engagement with an adjacent bone anchor under the skin and musculature of the patient, for example.