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    • 2. 发明申请
    • SPINAL PLATE ASSEMBLY HAVING LOCKING MECHANISM
    • 具有锁定机构的脊板组件
    • WO2017123713A1
    • 2017-07-20
    • PCT/US2017/013126
    • 2017-01-12
    • GLOBUS MEDICAL, INC.CIANFRANI, JasonMORRIS, Ross
    • CIANFRANI, JasonMORRIS, Ross
    • A61B17/70A61B17/86
    • A61B17/8605A61B17/7059A61B17/8042
    • A spinal plate assembly comprising a base plate defining an opening adjacent at least one aperture for receiving a bone screw which attaches to a spinal vertebrae. The aperture includes a seat and an annular groove having an end wall. The assembly comprises a locking mechanism having a split ring partially recessed within the annular groove and moveable between a locked condition partially blocking the aperture for retaining the screw in the seat and an unlocked condition radially deformable into the annular groove for permitting screw removal. The split ring has a proximal end and a distal end. The distal end is configured to engage the end wall of the annular groove. The locking mechanism comprises a rotating member retained within the opening of the base plate and having a notch configured to engage the proximal end of the ring to drive the ring toward the unlocked condition.
    • 脊板组件包括基板,基板限定邻近至少一个孔的开口,用于接收附接到脊椎骨的骨螺钉。 该孔包括一个座和一个具有端壁的环形槽。 所述组件包括锁定机构,所述锁定机构具有在所述环形凹槽内部分地凹入的开口环并且能够在部分地阻挡所述开口以将所述螺钉保持在所述座中的锁定状态和可径向变形到所述环形凹槽中以允许螺钉移除的解锁状态之间移动。 开口环具有近端和远端。 远端构造成接合环形凹槽的端壁。 锁定机构包括保持在基板的开口内并且具有凹口的旋转构件,该凹口构造成接合环的近端以将环朝向解锁状态驱动。