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    • 2. 发明申请
    • Spinal bone chisels
    • 脊柱骨凿
    • US20050090829A1
    • 2005-04-28
    • US10808186
    • 2004-03-23
    • Erik MartzJoel Millets
    • Erik MartzJoel Millets
    • A61B17/16A61B17/32A61B17/00
    • A61B17/1604A61B17/1671A61B17/320016A61B2017/00261
    • A chisel with distal cutting edges, used to form channels in adjacent vertebrae, includes a shank having a longitudinal axis and a cutting head coupled to the distal end of the shank. The cutting head includes distal cutting edges, which may be linear, arcuate, or V-shaped, and a guide member, which may be hollow or formed as two spaced members, to guide the chisel into the disc space to uniformly chisel both adjacent vertebrae simultaneously to partially form a channel in the vertebrae. The guide member and cutting head may have openings for distributing cut debris to the top and bottom surfaces of the head. The guide member may also include distal transverse, longitudinal side and/or vertical cutting edges, some of which may be in stepped relationship, for further cutting the endplates and removing disc material from between adjacent vertebrae, and for scraping of endplates. Other embodiments are disclosed.
    • 具有用于在相邻椎骨中形成通道的远侧切割刃的凿子包括具有纵向轴线的柄和连接到柄的远端的切割头。 切割头包括可以是直线形,弧形或V形的远侧切割边缘,以及可以是中空的或形成为两个间隔开的构件的引导构件,以将凿子引导到盘空间中以均匀地凿入相邻的椎骨 同时在椎骨中部分形成通道。 引导构件和切割头可以具有用于将切割的碎屑分配到头部的顶部和底部表面的开口。 引导构件还可以包括远端横向,纵向侧面和/或垂直切割边缘,其中一些切割边缘可以是阶梯式关系,用于进一步切割终板并从邻近的椎骨之间移除椎间盘材料,以及用于刮除终板。 公开了其他实施例。