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公开(公告)号：US20190083149A1
公开(公告)日：2019-03-21
申请号：US16126620
申请日：2018-09-10
IPC分类号： A61B17/70
CPC分类号： A61B17/7086 , A61B17/7032 , A61B17/7085
摘要： Instruments are provided for shifting elongate members, such as spinal rods, with respect to coupling members of spinal fixation systems. The instruments include a low friction drive mechanism having one or more rolling elements that ride along a helical groove or track in order to transform rotational movement of a drive member into linear shifting of a reducer member that shifts the elongate member. A one-way locking mechanism may be provided to selectively prevent unwanted counter-rotation of the low friction drive mechanism. The one-way locking mechanism may include annular ratchet teeth arranged on the exterior of the drive member and a ratchet pawl located adjacent to the teeth and selectively engageable therewith.
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公开(公告)号：US10070901B2
公开(公告)日：2018-09-11
申请号：US14875427
申请日：2015-10-05
IPC分类号： A61B17/70
CPC分类号： A61B17/7086 , A61B17/7032 , A61B17/7085
摘要： Instruments are provided for shifting elongate members, such as spinal rods, with respect to coupling members of spinal fixation systems. The instruments include a low friction drive mechanism having one or more rolling elements that ride along a helical groove or track in order to transform rotational movement of a drive member into linear shifting of a reducer member that shifts the elongate member. A one-way locking mechanism may be provided to selectively prevent unwanted counter-rotation of the low friction drive mechanism. The one-way locking mechanism may include annular ratchet teeth arranged on the exterior of the drive member and a ratchet pawl located adjacent to the teeth and selectively engageable therewith.
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公开(公告)号：US20160128741A1
公开(公告)日：2016-05-12
申请号：US14875427
申请日：2015-10-05
IPC分类号： A61B17/70
CPC分类号： A61B17/7086 , A61B17/7032 , A61B17/7085
摘要： Instruments are provided for shifting elongate members, such as spinal rods, with respect to coupling members of spinal fixation systems. The instruments include a low friction drive mechanism having one or more rolling elements that ride along a helical groove or track in order to transform rotational movement of a drive member into linear shifting of a reducer member that shifts the elongate member. A one-way locking mechanism may be provided to selectively prevent unwanted counter-rotation of the low friction drive mechanism. The one-way locking mechanism may include annular ratchet teeth arranged on the exterior of the drive member and a ratchet pawl located adjacent to the teeth and selectively engageable therewith.
摘要翻译： 提供了用于相对于脊柱固定系统的联接构件移动细长构件（例如脊椎杆）的仪器。 这些仪器包括具有一个或多个滚动元件的低摩擦驱动机构，所述滚动元件沿着螺旋槽或轨道行进，以便将驱动构件的旋转运动变换成使细长构件移动的减速器构件的线性移动。 可以提供单向锁定机构以选择性地防止低摩擦驱动机构的不希望的反向旋转。 单向锁定机构可以包括布置在驱动构件的外部上的环形棘轮齿和邻近牙齿定位并可与其啮合的棘爪。
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公开(公告)号：US10682167B2
公开(公告)日：2020-06-16
申请号：US16126620
申请日：2018-09-10
IPC分类号： A61B17/70
摘要： Instruments are provided for shifting elongate members, such as spinal rods, with respect to coupling members of spinal fixation systems. The instruments include a low friction drive mechanism having one or more rolling elements that ride along a helical groove or track in order to transform rotational movement of a drive member into linear shifting of a reducer member that shifts the elongate member. A one-way locking mechanism may be provided to selectively prevent unwanted counter-rotation of the low friction drive mechanism. The one-way locking mechanism may include annular ratchet teeth arranged on the exterior of the drive member and a ratchet pawl located adjacent to the teeth and selectively engageable therewith.
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