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    • 7. 发明授权
    • Directional control for a multi-axial screw assembly
    • 多轴螺丝组件的定向控制
    • US09232969B2
    • 2016-01-12
    • US12915634
    • 2010-10-29
    • Robert A. Farris
    • Robert A. Farris
    • A61B17/70
    • A61B17/7035A61B17/7002A61B17/7032A61B17/7037A61B17/7038A61B17/863A61B17/8685
    • A multi-axial screw assembly comprises a receiver, a base member, and a crown. The receiver comprises a channel for receiving a rod and an aperture extending from a bottom portion of the receiver. The base member comprises an aperture extending through the base member and an opening on a bottom portion of the base member. The base member is configured to couple to the receiver such that the aperture of the receiver is generally aligned with the aperture of the base member. The base member is rotatable relative to the receiver. The crown is received in the receiver and configured to mate to the base member. The crown has a mating feature configured to couple to the base member such that the crown rotates the base member when the crown is rotated.
    • 多轴螺旋组件包括接收器,基座构件和表冠。 接收器包括用于接收杆的通道和从接收器的底部延伸的孔。 基部构件包括延伸穿过基底构件的孔和在基底构件的底部上的开口。 基座构件被配置为联接到接收器,使得接收器的孔大致与基座构件的孔对准。 基座构件可相对于接收器旋转。 冠部被接收在接收器中并被配置为与基座构件配合。 冠部具有被配置为联接到基部构件的配合特征,使得当冠部旋转时,冠部使基部构件旋转。