Methods and instrument for vertebral interbody fusion
    5.
    发明申请
    Methods and instrument for vertebral interbody fusion 有权
    椎体间融合方法与仪器

    公开(公告)号:US20070288007A1

    公开(公告)日:2007-12-13

    申请号:US11725618

    申请日:2007-03-20

    IPC分类号: A61B17/56 A61F2/44

    摘要: Methods and instrumentation particularly adapted for disc space preparation for insertion of implants from an anterior approach to the spine are provided. The instruments include a guide sleeve defining a channel having overlapping cylindrical working channel portions and lateral non-distracting extensions extending from reduced thickness wall portions. The guide sleeve has an overall reduced width configuration. A pair of distractors are provided. A first distractor includes a shaft and distal tip, each having convex walls. A second distractor includes a shaft and distal tip including a recessed area at least along the tip. The first distractor is at least partially received within the recessed area of the second distractor when the first and second distractors are in side-by-side relation and a reduced overall width of the distractors is obtained. Preferably, the first and second distractors are used with the guide sleeve. Methods using the disclosed instruments are also provided.

    摘要翻译: 提供了特别适用于椎间盘准备的用于将植入物从前路插入到脊柱的方法和仪器。 仪器包括引导套筒,其限定具有重叠的圆柱形工作通道部分的通道和从减小厚度的壁部分延伸的横向非牵引延伸部。 引导套具有整体减小的宽度构型。 提供了一对干扰物。 第一牵引器包括轴和远端,每个具有凸壁。 第二牵引器包括轴和远端,其至少沿着尖端包括凹陷区域。 当第一和第二牵引器处于并排关系时,第一牵引器至少部分地被容纳在第二牵引器的凹陷区域内,并且获得了牵引器的总体宽度的缩小。 优选地,第一和第二牵引器与引导套筒一起使用。 还提供了使用所公开的仪器的方法。

    Anterior spinal instrumentation and method for implantation and revision
    10.
    发明授权
    Anterior spinal instrumentation and method for implantation and revision 失效
    前路脊髓手术及植入修复方法

    公开(公告)号:US06139551A

    公开(公告)日:2000-10-31

    申请号:US86931

    申请日:1998-05-29

    摘要: A system and method for anterior fixation of the spine utilizes a cylindrical implant engaged in the intradiscal space at the cephalad and caudal ends of the construct. The implants are cylindrical fusion devices (10) filled with bone material to promote bone ingrowth and fusion of the disc space. An attachment member (40) is connected to each of the fusion devices (10) and a spinal rod (50) is connected to each of the attachment members using an eyebolt assembly (53, 54, 55). In a further inventive method, a revision of the construct is achieved by removing the fusion devices. Each fusion device is engaged by an elongated guide member (62) over which a cylindrical trephine (70) is advanced. The trephine (70) is used to extract a core (84) of bone material around the fusion implant, while the guide member (62) is used to remove the bone core (84) containing the fusion implant (10). In another aspect of the invention, a removal insert (90, 90') is provided that engages an implanted fusion device (10). The removal insert (90, 90') can be used to guide the trephine (70) around the fusion device, and is connected to a removal tool (100) once the bone core is created. The removal tool (100) includes a shaft (101) attached to the removal insert (90, 90'), and a slap hammer (104) slidably mounted on the shaft.

    摘要翻译: 用于脊柱前固定的系统和方法利用啮合在椎间盘内空间中的圆柱形植入物在构造体的头端和尾端。 植入物是填充有骨材料的圆柱形融合装置(10),以促进椎间盘的向内生长和融合。 连接构件(40)连接到每个融合装置(10),并且使用吊环组件(53,54,55)将脊柱杆(50)连接到每个附接构件。 在另一发明的方法中,通过去除融合装置来实现构建体的修订。 每个融合装置由细长的引导构件(62)接合,圆柱形环钻(70)在该引导构件上前进。 所述环钻(70)用于在所述融合植入物周围提取骨材料的芯(84),同时所述引导构件(62)用于移除含有所述融合植入物(10)的骨芯(84)。 在本发明的另一方面,提供了一种与植入的融合装置(10)接合的移除插入件(90,90')。 移除插入物(90,90')可以用于引导围绕融合装置的环钻(70),并且一旦产生骨芯就连接到移除工具(100)。 拆卸工具(100)包括附接到移除插入件(90,90')的轴(101)和可滑动地安装在轴上的敲击锤(104)。