公开(公告)号：US20090216282A1

公开(公告)日：2009-08-27

申请号：US12395766

申请日：2009-03-02

申请人： Doris M. Blake ,  Trace Cawley

发明人： Doris M. Blake ,  Trace Cawley

IPC分类号： A61B17/80 ,  A61B17/86

CPC分类号： A61B17/7059 ,  A61B17/8033 ,  A61B17/8038 ,  A61B17/8605 ,  A61B17/8863

摘要： The present disclosure provides systems and methods for retaining a plate, such as a cervical plate, to a substrate, such as bone, through a locking screw with upper asynchronous threads and lower cancellous threads. The present invention utilizes the locking screw with cancellous-type threads to draw the screw into the substrate. The screw is operable to retain a plate to the substrate and is configured to gall and lock to the plate through the upper threads which are out-of-phase with corresponding threads on the plate thereby preventing reverse threading or backing out of the screw.

摘要翻译： 本公开提供了通过具有上异构线和下松质线的锁定螺钉将诸如宫颈板的板保持到基底（例如骨）的系统和方法。 本发明利用带有松质螺纹的锁定螺丝将螺钉拉入衬底。 螺钉可操作以将板保持在基板上，并且被配置成通过与板上的相应螺纹不相位的上部螺纹而使板弯曲并锁定到板上，从而防止螺纹的反向穿线或退出。

公开(公告)号：US20100331888A1

公开(公告)日：2010-12-30

申请号：US12876975

申请日：2010-09-07

申请人： Trace R. Cawley ,  John Pepper ,  Doris M. Blake

发明人： Trace R. Cawley ,  John Pepper ,  Doris M. Blake

IPC分类号： A61B17/70

CPC分类号： A61B17/7032 ,  A61B17/7035 ,  A61B17/7037

摘要： In a rod fixation system of the type used to treat various spinal conditions, the same fastener is used to lock both a polyaxial screw and a rod in position. A spinal correction device according to the invention, adapted for use with a rod and a polyaxial screw having a ball-shaped head and a threaded end, comprises a head-body and a cap. The head-body includes a lower internal cavity to receive the ball-shaped head of the screw, an upper bore to receive a fixation rod therethrough, and an upper end configured to receive the cap. The head-body and the cap are configured such that a first rotation of the cap locks the polyaxial screw in position, and a second rotation of the cap locks the rod in position. In the preferred embodiment, the head-body includes one or more gaps to facilitate flexion of the head-body as a rotational torque is placed on the cap. The gap or gaps may be horizontal, vertical or other angles relative to the axis of the entrapped rod.

摘要翻译： 在用于治疗各种脊柱状况的类型的杆固定系统中，使用相同的紧固件将多轴螺丝和杆锁定在适当位置。 根据本发明的脊柱矫正装置，适用于杆和具有球形头部和螺纹端部的多轴螺钉，包括头部本体和帽盖。 头部主体包括用于接收螺钉的球形头部的下部内部空腔，用于接收通过其中的固定杆的上部孔，以及构造成接纳帽盖的上端。 头体和帽被构造成使得帽的第一旋转将多轴螺钉锁定就位，并且帽的第二旋转将杆锁定在适当位置。 在优选实施例中，头部主体包括一个或多个间隙，以便当旋转扭矩放置在盖上时便于头部本体的弯曲。 间隙或间隙可以相对于被夹带的杆的轴线是水平的，垂直的或其他的角度。