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81.
公开(公告)号:US06139551A
公开(公告)日:2000-10-31
申请号:US86931
申请日:1998-05-29
IPC分类号: A61B17/58 , A61B17/16 , A61B17/70 , A61F2/00 , A61F2/28 , A61F2/30 , A61F2/44 , A61F2/46 , A61B17/88
CPC分类号: A61B17/1671 , A61B17/1637 , A61B17/7032 , A61B17/7041 , A61F2/446 , A61F2/4611 , A61B17/7011 , A61F2/442 , A61F2/4455 , A61F2002/2835 , A61F2002/30224 , A61F2002/30235 , A61F2002/30785 , A61F2002/30787 , A61F2002/30797 , A61F2002/3085 , A61F2002/4475 , A61F2002/448 , A61F2002/449 , A61F2002/4619 , A61F2002/4627 , A61F2002/4681 , A61F2230/0069
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)。
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公开(公告)号:US5797917A
公开(公告)日:1998-08-25
申请号:US799792
申请日:1997-02-12
申请人: Lawrence M. Boyd , Thomas McGahan
发明人: Lawrence M. Boyd , Thomas McGahan
IPC分类号: A61B17/58 , A61B17/16 , A61B17/70 , A61F2/00 , A61F2/28 , A61F2/30 , A61F2/44 , A61F2/46 , A61B17/88
CPC分类号: A61B17/1671 , A61B17/1637 , A61B17/7032 , A61B17/7041 , A61F2/446 , A61F2/4611 , A61B17/7011 , A61F2/442 , A61F2/4455 , A61F2002/2835 , A61F2002/30224 , A61F2002/30235 , A61F2002/30785 , A61F2002/30787 , A61F2002/30797 , A61F2002/3085 , A61F2002/4475 , A61F2002/448 , A61F2002/449 , A61F2002/4619 , A61F2002/4627 , A61F2002/4681 , A61F2230/0069
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.
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