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    • 2. 发明授权
    • Pedicle screw assembly having a retractable screw tip for facilitating the securement of the pedicle screw assembly to a spinal vertebra
    • 椎弓根螺钉组件具有可缩回的螺钉尖端,以便于将椎弓根螺钉组件固定到椎骨上
    • US08403973B2
    • 2013-03-26
    • US12835364
    • 2010-07-13
    • Ashok BiyaniGary Durivage
    • Ashok BiyaniGary Durivage
    • A61B17/04A61B17/86A61F2/08
    • A61B17/8685A61B17/864
    • A pedicle screw assembly has a retractable screw tip that facilitates the securement of the pedicle screw assembly to a spinal vertebra in a minimally invasive fashion during an orthopedic surgical procedure. The pedicle screw assembly includes a body portion including a head and a shank. The shank includes an outer surface with a thread provided thereon, an end having a cutting tip provided thereon, and a bore extending inwardly from the end and having an internally threaded region provided therein. The pedicle screw assembly also includes a tip portion including a body having a cutting edge and a shank extending from the body. The shank has an externally threaded region provided thereon that cooperates with the internally threaded region of the bore to permit movement of the tip portion relative to the body portion between extended and retracted positions.
    • 椎弓根螺钉组件具有可缩回的螺钉尖端,其有助于在整形外科手术过程中以最小侵入方式将椎弓根螺钉组件固定到脊椎椎骨。 椎弓根螺钉组件包括包括头部和柄部的主体部分。 柄包括设置在其上的螺纹的外表面,具有设置在其上的切割尖端的端部以及从端部向内延伸并且具有设置在其中的内螺纹区域的孔。 椎弓根螺钉组件还包括尖端部分,其包括具有切割边缘的主体和从主体延伸的柄部。 柄部具有设置在其上的外螺纹区域,其与孔的内螺纹区域配合,以允许尖端部分相对于主体部分在延伸位置和缩回位置之间移动。
    • 3. 发明申请
    • PEDICLE SCREW INCLUDING STATIONARY AND MOVABLE MEMBERS FOR FACILITATING THE SURGICAL CORRECTION OF SPINAL DEFORMITIES
    • 包括用于促进脊柱畸形的外科矫正的静止状态和可移动成员的螺丝钉
    • US20100241172A1
    • 2010-09-23
    • US12729629
    • 2010-03-23
    • Ashok BiyaniGary Durivage
    • Ashok BiyaniGary Durivage
    • A61B17/88A61B17/86
    • A61B17/7032A61B17/7035A61B17/7037
    • A pedicle screw for use in the treatment of a spinal deformity includes a head assembly and a fastener portion extending from the head assembly. The pedicle screw includes a head assembly and a fastener portion that extends from the head assembly. The fastener portion extends from the head assembly and is adapted to be secured to a vertebra of a spinal column. The head assembly includes a stationary member and a movable member. The movable member is supported on the stationary member for movement (such as pivoting movement) relative thereto between an opened position and a closed position. When the movable member is in the opened position, the head assembly is adapted to receive a longitudinal member therein for treatment of a spinal deformity. Thereafter, the movable member can be moved to the closed position to properly align the pedicle screw with the longitudinal member. A locking member and a retention member can then be used to maintain the movable member in the closed position.
    • 用于治疗脊柱畸形的椎弓根螺钉包括头部组件和从头部组件延伸的紧固件部分。 椎弓根螺钉包括头部组件和从头部组件延伸的紧固件部分。 紧固件部分从头部组件延伸并且适于固定到脊柱的椎骨。 头组件包括固定构件和可移动构件。 可动构件被支撑在固定构件上,用于在打开位置和关闭位置之间相对于其移动(诸如枢转运动)。 当可移动构件处于打开位置时,头部组件适于在其中容纳纵向构件以治疗脊柱畸形。 此后,可移动部件可以移动到关闭位置,以使椎弓根螺钉与纵向部件正确对准。 然后可以使用锁定构件和保持构件来将可动构件保持在关闭位置。