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    • 6. 发明申请
    • TORQUE LIMITED INSTRUMENT FOR MANIPULATING A SPINAL ROD RELATIVE TO A BONE ANCHOR
    • 用于操纵骨骼锚固脊柱的扭矩有限公司
    • WO2010132337A1
    • 2010-11-18
    • PCT/US2010/034197
    • 2010-05-10
    • DEPUY SPINE, INC.STAD, Shawn, D.MURPHY, Raymond
    • STAD, Shawn, D.MURPHY, Raymond
    • A61B17/58
    • A61B17/7091A61B2090/031
    • An instrument for adjusting a spinal rod relative to a bone anchor includes a handle connecting a set screw driver with a reduction collar. The handle includes an inner shaft engageable with the set screw driver, an outer shaft engageable with the reduction collar, and a clutch connecting the inner shaft to the outer shaft and permitting selective rotation of the inner shaft relative to the outer shaft, and thus, selective rotation of the set screw driver relative to the reduction collar. The handle clutch may include a spring and a plurality of disc clutch members positioned about the outer shaft. The spring biases the disc clutch members into contact with one another and at least one disc clutch member may rotate relative to an adjacent disc clutch member upon application of a torque to the reduction collar and the outer shaft greater than a preselected torque value.
    • 用于相对于骨锚固器调节脊柱杆的仪器包括将固定螺丝刀与减速颈环连接的把手。 手柄包括可与定位螺丝刀接合的内轴,可与减速轴环接合的外轴和将内轴连接到外轴并允许内轴相对于外轴的选择性旋转的离合器, 固定螺丝刀相对于还原轴环的选择性旋转。 手柄离合器可以包括弹簧和围绕外轴定位的多个盘式离合器构件。 弹簧使盘式离合器构件彼此接触,并且当向减速轴环和外轴施加大于预选转矩值的扭矩时,至少一个盘式离合器构件可相对于相邻的盘式离合器构件旋转。
    • 7. 发明申请
    • DUAL PIVOT INSTRUMENT FOR REDUCTION OF A FIXATION ELEMENT AND METHOD OF USE
    • 用于减少固定元件的双重仪器和使用方法
    • WO2009042297A1
    • 2009-04-02
    • PCT/US2008/072851
    • 2008-08-12
    • DEPUY SPINE, INC.STAD, Shawn, D.PAIVA, James
    • STAD, Shawn, D.PAIVA, James
    • A61B17/70
    • A61B17/7086A61B17/8875
    • A spinal fixation element fixation reduction system is provided herein. In general, the system can include a cap element with a bore having a central axis extending therethrough wherein the cap element is configured to releasably engage any type of surgical device (e.g., an access sleeve, a vertebral body rotator, etc.). Further, the system can include a driver configured to be slidably and removably positioned through the cap element. The system can also include an actuator configured to apply a force to the driver substantially along the central axis of the cap element thereby moving the driver in a distal direction so as to effect reduction of a spinal fixation element into a bone anchor. Additionally, a method of reducing a spinal fixation element into a bone anchor is also provided wherein the method can be performed as a minimally invasive surgical procedure or as an open procedure.
    • 本文提供了一种脊柱固定元件固定还原系统。 通常,该系统可以包括具有孔的帽元件,孔具有延伸穿过其中的中心轴线,其中盖元件构造成可释放地接合任何类型的手术装置(例如,进入套筒,椎体旋转器等)。 此外,该系统可以包括被配置为可滑动地和可移除地定位穿过盖元件的驱动器。 该系统还可以包括致动器,其构造成基本上沿着帽元件的中心轴线向驾驶员施加力,从而使驾驶员沿远端方向移动,以便将脊柱固定元件减小到骨锚中。 此外,还提供了将脊柱固定元件减小到骨锚中的方法,其中该方法可以作为微创外科手术或作为开放手术进行。