公开(公告)号：EP0840580A4

公开(公告)日：2000-08-09

申请号：EP96918001

申请日：1996-06-06

申请人： MICHELSON GARY K

发明人： MICHELSON GARY KARLIN

IPC分类号： A61B17/88 ,  A61F2/00 ,  A61F2/02 ,  A61F2/28 ,  A61F2/30 ,  A61F2/44 ,  A61F2/46

CPC分类号： A61F2/442 ,  A61F2/30744 ,  A61F2/30767 ,  A61F2/44 ,  A61F2/4455 ,  A61F2/447 ,  A61F2/4611 ,  A61F2002/2835 ,  A61F2002/30062 ,  A61F2002/30143 ,  A61F2002/30153 ,  A61F2002/30158 ,  A61F2002/30261 ,  A61F2002/30271 ,  A61F2002/3037 ,  A61F2002/30398 ,  A61F2002/30405 ,  A61F2002/30434 ,  A61F2002/3051 ,  A61F2002/30556 ,  A61F2002/30579 ,  A61F2002/30599 ,  A61F2002/30604 ,  A61F2002/30747 ,  A61F2002/30774 ,  A61F2002/30777 ,  A61F2002/30785 ,  A61F2002/30787 ,  A61F2002/30789 ,  A61F2002/30797 ,  A61F2002/30836 ,  A61F2002/30841 ,  A61F2002/30843 ,  A61F2002/30904 ,  A61F2002/3092 ,  A61F2002/4475 ,  A61F2002/4485 ,  A61F2002/449 ,  A61F2002/4629 ,  A61F2210/0004 ,  A61F2220/0025 ,  A61F2220/0033 ,  A61F2220/0041 ,  A61F2230/0017 ,  A61F2230/0019 ,  A61F2230/0026 ,  A61F2230/0082 ,  A61F2250/0009 ,  A61F2250/0063 ,  A61F2310/00796 ,  Y10S606/90 ,  Y10S606/907 ,  Y10S606/908

摘要： The present invention is directed to interbody spinal fusion implants (100) having a structural configuration that provides for the maintaining and creating of the normal anatomic angular relationship of two adjacent vertebrae (V2, V3) of the spine (S) to maintain and create spinal lordosis. The spinal fusion implants (100) of the present invention are sized to fit within the disc space created by the removal of disc material between two adjacent vertebrae (V2, V3) and conform wholly or in part to the disc space created. The spinal fusion implants (100) of the present invention have upper (112) and lower (114) surfaces that form a support structure for bearing against the end plates of the adjacent vertebrae (V2, V3). The upper (112) and lower (114) surfaces are disposed in converging angular relationship to each other such that the implants (100) of the present invention have an overall wedged shape in an elevation side view.

摘要翻译： 本发明涉及椎体间脊柱融合植入物（100），其具有提供脊柱（S）的两个相邻椎骨（V2，V3）的正常解剖角度关系的维持和创建以维持和产生脊柱 前凸。 本发明的脊骨融合植入物（100）的尺寸设定为适合于通过移除两个相邻椎骨（V2，V3）之间的椎间盘材料而形成的椎间盘空间内，并且完全或部分地符合所产生的椎间盘空间。 本发明的脊柱融合植入物（100）具有形成支撑结构的上（112）和下（114）表面，以抵靠相邻椎骨（V2，V3）的端板。 上表面（112）和下表面（114）以彼此会聚的角度关系布置，使得本发明的植入物（100）在正视图中具有整体楔形形状。

公开(公告)号：EP0996385A4

公开(公告)日：2001-10-31

申请号：EP98906158

申请日：1998-02-11

申请人： MICHELSON GARY K

发明人： MICHELSON GARY KARLIN

IPC分类号： A61B17/58 ,  A61B17/00 ,  A61B17/16 ,  A61B17/17 ,  A61B17/70 ,  A61B17/80 ,  A61B17/86 ,  A61B17/88 ,  A61F2/00

CPC分类号： A61B17/8052 ,  A61B17/1604 ,  A61B17/1671 ,  A61B17/1728 ,  A61B17/1757 ,  A61B17/7059 ,  A61B17/80 ,  A61B17/8019 ,  A61B17/8033 ,  A61B17/8042 ,  A61B17/8085 ,  A61B17/861 ,  A61B17/8625 ,  A61B17/863 ,  A61B17/8695 ,  A61B17/8875 ,  A61B2017/0046 ,  A61B2017/8655 ,  A61F2/0077 ,  Y10S606/909

摘要： The present invention is directed to a plating system having multiple (2) and single (600) locking mechanisms for general skeletal use other than in the anterior cervical spine; an orthopedic plating system (960) that permits a pair of bone screws to be inserted into a bone in a crossed over orientation and locked to the plate; a segmentable plating system (1000) which can be made to a selected length by the surgeon; and a combination screw-lock-plating system (2000) for allowing and/or causing intersegmental compression of bone portions.

公开(公告)号：EP0812167A4

公开(公告)日：1998-09-16

申请号：EP96907088

申请日：1996-02-26

申请人： MICHELSON GARY K

发明人： MICHELSON GARY KARLIN

IPC分类号： A61B17/56 ,  A61B17/00 ,  A61B17/02 ,  A61B17/16 ,  A61B17/17 ,  A61B17/32 ,  A61B17/34 ,  A61B17/58 ,  A61B17/88 ,  A61B17/92 ,  A61B19/00 ,  A61F2/00 ,  A61F2/28 ,  A61F2/30 ,  A61F2/44 ,  A61F2/46

CPC分类号： A61B17/025 ,  A61B17/1671 ,  A61B17/1757 ,  A61B17/32 ,  A61B17/3468 ,  A61B17/8888 ,  A61B2017/0256 ,  A61B2017/922 ,  A61B2090/036 ,  A61F2/30744 ,  A61F2/442 ,  A61F2/446 ,  A61F2/4611 ,  A61F2002/2835 ,  A61F2002/30143 ,  A61F2002/30224 ,  A61F2002/30235 ,  A61F2002/30405 ,  A61F2002/30426 ,  A61F2002/30774 ,  A61F2002/30785 ,  A61F2002/30787 ,  A61F2002/30797 ,  A61F2002/30836 ,  A61F2002/3085 ,  A61F2002/30904 ,  A61F2002/4475 ,  A61F2002/448 ,  A61F2002/4619 ,  A61F2002/4623 ,  A61F2002/4627 ,  A61F2002/4629 ,  A61F2002/4649 ,  A61F2002/4681 ,  A61F2002/4687 ,  A61F2220/0025 ,  A61F2230/0017 ,  A61F2230/0069

摘要： Apparatus and a method of inserting spinal implants is disclosed in which an intervertebral space is first distracted, a hollow sleeve having teeth at one end is then driven into the vertebrae adjacent that disc space. A drill (240) is then passed through the hollow sleeve (140) removing disc and bone in preparation for receiving the spinal implant which is then inserted through the sleeve (140). Apparatus and method of inserting spinal implants is disclosed in which an intervertebral space is first distracted to restore the normal angular relationship of the vertebrae adjacent to that disc space. An extended outer sleeve (140) having extended portions capable of maintaining the vertebrae distracted in their normal angular relationship is then driven into the vertebrae adjacent that disc space. A drill (240) is then passed through the hollow sleeve (140) removing disc and bone in preparation for receiving the spinal implant which is then inserted through the sleeve.

公开(公告)号：EP1006910A4

公开(公告)日：2005-03-09

申请号：EP97935095

申请日：1997-07-31

申请人： MICHELSON GARY K

发明人： MICHELSON GARY KARLIN

IPC分类号： A61B17/56 ,  A61B17/02 ,  A61B17/16 ,  A61B17/17 ,  A61F2/00 ,  A61F2/44

CPC分类号： A61B17/025 ,  A61B17/1671 ,  A61B17/1757 ,  A61B2017/0256 ,  A61B2017/1602 ,  A61F2/442 ,  A61F2/4455 ,  A61F2002/30153 ,  A61F2230/0019

摘要： An apparatus and method for placing adjacent vertebrae at a fixed distance and angular relationship relative to each other, fixing the vertebrae in the position by use of a milling block (100) engaging each of the adjacent vertebrae, and then using a milling instrument (200), the depth, length and excursion of which from side to side are controlled by the apparatus to machine out a defined thickness of bone and a space of defined length, height, width and shape in preparation for receiving an inter-body spinal implant of graft or known size and configuration, are disclosed.

公开(公告)号：EP0836457A4

公开(公告)日：1999-09-15

申请号：EP96917996

申请日：1996-06-06

申请人： MICHELSON GARY K

发明人： MICHELSON GARY KARLIN

IPC分类号： A61B17/02 ,  A61B17/16 ,  A61B17/17 ,  A61B17/32 ,  A61B17/88 ,  A61B17/92 ,  A61B19/00 ,  A61F2/00 ,  A61F2/02 ,  A61F2/28 ,  A61F2/30 ,  A61F2/44 ,  A61F2/46 ,  A61F5/04

CPC分类号： A61F2/30771 ,  A61B17/025 ,  A61B17/1671 ,  A61B17/1757 ,  A61B17/32 ,  A61B2017/0256 ,  A61B2017/922 ,  A61B2090/036 ,  A61F2/30744 ,  A61F2/30767 ,  A61F2/442 ,  A61F2/446 ,  A61F2/4611 ,  A61F2/4657 ,  A61F2002/2835 ,  A61F2002/30062 ,  A61F2002/3013 ,  A61F2002/30131 ,  A61F2002/30143 ,  A61F2002/30148 ,  A61F2002/3021 ,  A61F2002/30217 ,  A61F2002/30224 ,  A61F2002/30235 ,  A61F2002/30405 ,  A61F2002/30426 ,  A61F2002/30611 ,  A61F2002/30774 ,  A61F2002/30777 ,  A61F2002/30785 ,  A61F2002/30787 ,  A61F2002/30795 ,  A61F2002/30797 ,  A61F2002/30808 ,  A61F2002/3081 ,  A61F2002/30836 ,  A61F2002/3085 ,  A61F2002/30879 ,  A61F2002/30892 ,  A61F2002/30894 ,  A61F2002/30904 ,  A61F2002/30906 ,  A61F2002/30909 ,  A61F2002/4475 ,  A61F2002/448 ,  A61F2002/449 ,  A61F2002/4619 ,  A61F2002/4623 ,  A61F2002/4629 ,  A61F2002/4649 ,  A61F2002/4681 ,  A61F2210/0004 ,  A61F2220/0025 ,  A61F2230/001 ,  A61F2230/0013 ,  A61F2230/0017 ,  A61F2230/0067 ,  A61F2230/0069 ,  A61F2250/0063 ,  A61F2310/00017 ,  A61F2310/00023 ,  A61F2310/00029 ,  A61F2310/00179 ,  A61F2310/00293 ,  A61F2310/00796

摘要： The present invention is directed to a variety of interbody spinal fusion implants (220, 320 and 420) having at least a partially frusto-conical configuration. The spinal fusion implants (220, 320 and 420) of the present invention may be relatively solid or hollow and may have surface roughenings to promote bone ingrowth and stability. The spinal fusion implants (220, 320 and 420) of the present invention may have wells (260) extending into the material of the implant from the surface for the purpose of holding fusion promoting materials and to provide for areas of bone ingrowth fixation. A variety of surface irregularities may be employed to increase implant stability and implant surface area, and/or for the purpose of advancing the spinal fusion implant into the fusion site.

摘要翻译： 本发明涉及具有至少部分截头圆锥形构造的各种椎体间脊柱融合植入物（220,320和420）。 本发明的脊柱融合植入物（220,320和420）可以是相对固体或中空的，并且可以具有表面粗糙度以促进骨向内生长和稳定性。 本发明的脊柱融合植入物（220,320和420）可具有从表面延伸到植入物材料中的孔（260），用于容纳融合促进材料并提供骨向内生长固定区域。 可以采用各种表面不规则性来增加植入物稳定性和植入物表面积，和/或为了将脊柱融合植入物推进到融合部位中。

公开(公告)号：EP0836455A4

公开(公告)日：1999-09-15

申请号：EP96917995

申请日：1996-06-06

申请人： MICHELSON GARY K

发明人： MICHELSON GARY KARLIN

IPC分类号： A61B17/02 ,  A61B17/88 ,  A61F2/00 ,  A61F2/02 ,  A61F2/28 ,  A61F2/30 ,  A61F2/44 ,  A61F2/46

CPC分类号： A61F2/446 ,  A61B2017/0256 ,  A61F2/30744 ,  A61F2/30767 ,  A61F2/442 ,  A61F2/4455 ,  A61F2/4611 ,  A61F2002/2817 ,  A61F2002/2835 ,  A61F2002/2839 ,  A61F2002/30062 ,  A61F2002/30112 ,  A61F2002/30113 ,  A61F2002/30143 ,  A61F2002/30153 ,  A61F2002/30154 ,  A61F2002/30224 ,  A61F2002/30235 ,  A61F2002/30261 ,  A61F2002/30271 ,  A61F2002/30599 ,  A61F2002/30604 ,  A61F2002/30777 ,  A61F2002/30785 ,  A61F2002/30787 ,  A61F2002/30789 ,  A61F2002/30795 ,  A61F2002/30836 ,  A61F2002/30848 ,  A61F2002/3085 ,  A61F2002/30879 ,  A61F2002/30904 ,  A61F2002/30906 ,  A61F2002/3092 ,  A61F2002/4475 ,  A61F2002/448 ,  A61F2002/449 ,  A61F2002/464 ,  A61F2210/0004 ,  A61F2230/0004 ,  A61F2230/0006 ,  A61F2230/0017 ,  A61F2230/0019 ,  A61F2230/0021 ,  A61F2230/0069 ,  A61F2230/0082 ,  A61F2250/0063 ,  A61F2310/00023 ,  A61F2310/00293 ,  A61F2310/00796

摘要： This invention is an oversized spinal implant (100) for trans-lateral insertion into the disc space between two vertebrae, a length that is greater than one half of the transverse width of the vertebrae, and is greater than the depth of the vertebrae. The trans-lateral implant of the present invention has a height that is greater than the height of the disc space between two adjacent vertebrae so as to engage both of the vertebrae. The width of the implant need be only slightly less than the depth of the vertebrae themselves. The trans-lateral spinal fusion implant of the present invention has more surface area of contact, and thus permits greater stability so as to withstand torque, and in the case of a threaded implant, increases the depth in which any threads are able to penetrate the vertebrae.

摘要翻译： 本发明是一种用于横向插入两个椎骨之间的椎间盘空间的大尺寸的脊柱植入物（100），其长度大于椎骨的横向宽度的一半，并且大于椎骨的深度。 本发明的横向植入物的高度大于两个相邻椎骨之间的椎间盘空间的高度，以便接合两个椎骨。 植入物的宽度仅需要略小于椎骨本身的深度。 本发明的横向脊柱融合植入物具有更多的接触表面区域，并且因此允许更大的稳定性以承受扭矩，并且在螺纹植入物的情况下，增加了任何螺纹能够穿透 椎骨。

公开(公告)号：EP1233732A4

公开(公告)日：2003-05-28

申请号：EP01908836

申请日：2001-02-05

申请人： MICHELSON GARY K

发明人： MICHELSON GARY KARLIN

IPC分类号： A61B17/56 ,  A61B17/80 ,  A61B17/86 ,  A61F2/00 ,  A61F2/02 ,  A61F2/28 ,  A61F2/30 ,  A61F2/44 ,  A61F2/46 ,  A61L27/00

CPC分类号： A61F2/4455 ,  A61B17/8052 ,  A61B17/86 ,  A61F2/28 ,  A61F2/30744 ,  A61F2/442 ,  A61F2/446 ,  A61F2/4465 ,  A61F2/4611 ,  A61F2002/2817 ,  A61F2002/2835 ,  A61F2002/30143 ,  A61F2002/30187 ,  A61F2002/30261 ,  A61F2002/30331 ,  A61F2002/30362 ,  A61F2002/30392 ,  A61F2002/30405 ,  A61F2002/305 ,  A61F2002/30517 ,  A61F2002/30538 ,  A61F2002/30556 ,  A61F2002/30616 ,  A61F2002/30626 ,  A61F2002/30632 ,  A61F2002/30774 ,  A61F2002/30777 ,  A61F2002/30779 ,  A61F2002/30785 ,  A61F2002/30787 ,  A61F2002/30789 ,  A61F2002/30794 ,  A61F2002/30836 ,  A61F2002/30841 ,  A61F2002/30891 ,  A61F2002/30904 ,  A61F2002/30975 ,  A61F2002/4475 ,  A61F2002/448 ,  A61F2220/0025 ,  A61F2220/0033 ,  A61F2230/0017 ,  A61F2230/0034 ,  A61F2230/0082 ,  A61F2250/0006 ,  A61F2250/0009 ,  A61F2310/00017 ,  A61F2310/00023 ,  A61F2310/00071 ,  A61F2310/00179 ,  A61F2310/00293 ,  A61F2310/00359 ,  A61F2310/00407 ,  A61F2310/00796

摘要： A push-in interbody spinal fusion (100) implant having an expandable height. The implant (100) comprises upper and lower members (102 and 106) with an expander in between (122). When the expander (122) is changed from one position to another, for example as in the first embodiment where it is rotated in a plane perpendicular to the axis of the upper and lower members (102 and 106), the height of the implant (100) is increased.

摘要翻译： 具有可扩展高度的推入式椎间融合器（100）植入物。 植入物（100）包括具有在（122）之间的扩张器的上部和下部构件（102和106）。 当扩张器（122）从一个位置改变到另一个位置时，例如如在第一实施例中，其在与上部和下部构件（102和106）的轴线垂直的平面内旋转时，植入物的高度 100）增加。

公开(公告)号：EP1006913A4

公开(公告)日：2001-10-31

申请号：EP98904937

申请日：1998-02-11

申请人： MICHELSON GARY K

发明人： MICHELSON GARY KARLIN

IPC分类号： A61B17/58 ,  A61B17/00 ,  A61B17/16 ,  A61B17/17 ,  A61B17/70 ,  A61B17/80 ,  A61B17/86 ,  A61B17/88 ,  A61F2/00

CPC分类号： A61B17/7058 ,  A61B17/1604 ,  A61B17/1671 ,  A61B17/1728 ,  A61B17/1757 ,  A61B17/7059 ,  A61B17/80 ,  A61B17/8019 ,  A61B17/8033 ,  A61B17/8042 ,  A61B17/8085 ,  A61B17/861 ,  A61B17/8625 ,  A61B17/863 ,  A61B17/8695 ,  A61B17/8875 ,  A61B2017/0046 ,  A61B2017/8655 ,  A61F2/0077 ,  Y10S606/902 ,  Y10S606/907 ,  Y10S606/908 ,  Y10S606/91

摘要： This invention is anatomically contoured anterior cervical plates (2) with bone ingrowth surfaces, providing for intersegmental compressive pre-loading, and a rigid and locked interface to all of the bone screws (30), with those engaging the vertebrae deployed in highly convergent pairs. The bone screws (30) have a tapered self-tapping leading end, an increasing root diameter with a generally constant outer diameter with a thread that is narrow and sharp throughout, and an enlarged head portion capable of an interference fit to the receiving holes (6) in the plate (2). Instrumentation consists of plate holders (130), a compression apparatus (100), and a pilot hole forming device (60) that interlocks with the plate.

公开(公告)号：EP0814718A4

公开(公告)日：2000-02-09

申请号：EP96907089

申请日：1996-02-26

申请人： MICHELSON GARY K

发明人： MICHELSON GARY KARLIN

IPC分类号： A61B17/22 ,  A61B17/00 ,  A61B17/02 ,  A61B17/064 ,  A61B17/16 ,  A61B17/17 ,  A61B17/32 ,  A61B17/56 ,  A61B17/70 ,  A61B17/80 ,  A61B17/86 ,  A61B17/88 ,  A61B17/92 ,  A61B19/00 ,  A61F2/00 ,  A61F2/02 ,  A61F2/28 ,  A61F2/30 ,  A61F2/44 ,  A61F2/46

CPC分类号： A61B17/1671 ,  A61B17/025 ,  A61B17/0642 ,  A61B17/1604 ,  A61B17/17 ,  A61B17/1757 ,  A61B17/32 ,  A61B17/320016 ,  A61B17/7059 ,  A61B17/809 ,  A61B17/86 ,  A61B17/8665 ,  A61B17/8875 ,  A61B2017/00004 ,  A61B2017/00261 ,  A61B2017/0256 ,  A61B2017/0641 ,  A61B2017/0647 ,  A61B2017/0648 ,  A61B2017/922 ,  A61B2090/036 ,  A61F2/30744 ,  A61F2/30767 ,  A61F2/30965 ,  A61F2/442 ,  A61F2/4455 ,  A61F2/446 ,  A61F2/4611 ,  A61F2002/2835 ,  A61F2002/30062 ,  A61F2002/30143 ,  A61F2002/30224 ,  A61F2002/30235 ,  A61F2002/30329 ,  A61F2002/30405 ,  A61F2002/30426 ,  A61F2002/30433 ,  A61F2002/30772 ,  A61F2002/30774 ,  A61F2002/30785 ,  A61F2002/30787 ,  A61F2002/30797 ,  A61F2002/30836 ,  A61F2002/3085 ,  A61F2002/30904 ,  A61F2002/4475 ,  A61F2002/448 ,  A61F2002/449 ,  A61F2002/4619 ,  A61F2002/4623 ,  A61F2002/4627 ,  A61F2002/4629 ,  A61F2002/4649 ,  A61F2002/4681 ,  A61F2210/0004 ,  A61F2220/0025 ,  A61F2220/0041 ,  A61F2230/0017 ,  A61F2230/0069 ,  A61F2310/00017 ,  A61F2310/00023 ,  A61F2310/00059 ,  A61F2310/00796

摘要： An improved method and instrumentation for performing spinal surgery, including discectomy, interbody fusion and rigid internal fixation of the spine, from the lateral aspect of the spine is disclosed. The surgical procedure can be performed through a very small incision. The instrumentation of the present invention, all of which is inserted from a lateral position into the spine in the preferred embodiment, comprises a guide pin (30), a distractor (100), an extended outer sleeve (140), an inner sleeve (242), an adjustable drill (250), and an implant driver. The distractor (100) of the present invention is driven into the disc for spacing apart and realigning the adjacent vertebrae. It further functions as an alignment rod for inserting the extended outer sleeve which is a hollow tubular member capable of maintaining said spacing and alignment of two adjacent vertebrae, and defines a protected space through which subsequent instruments which may be included.

公开(公告)号：EP0831759A4

公开(公告)日：1999-09-15

申请号：EP96917084

申请日：1996-06-06

申请人： MICHELSON GARY K

发明人： MICHELSON GARY KARLIN

IPC分类号： A61B17/88 ,  A61F2/00 ,  A61F2/02 ,  A61F2/28 ,  A61F2/30 ,  A61F2/44 ,  A61F2/46 ,  A61F5/04

CPC分类号： A61B17/025 ,  A61B17/1671 ,  A61B17/1757 ,  A61B17/32 ,  A61B17/3468 ,  A61B17/8875 ,  A61B2017/0256 ,  A61B2017/922 ,  A61B2090/036 ,  A61F2/30744 ,  A61F2/30767 ,  A61F2/30771 ,  A61F2/442 ,  A61F2/446 ,  A61F2/4611 ,  A61F2/4657 ,  A61F2002/2835 ,  A61F2002/30062 ,  A61F2002/3013 ,  A61F2002/30131 ,  A61F2002/30143 ,  A61F2002/30148 ,  A61F2002/3021 ,  A61F2002/30217 ,  A61F2002/30224 ,  A61F2002/30235 ,  A61F2002/30405 ,  A61F2002/30426 ,  A61F2002/30611 ,  A61F2002/30774 ,  A61F2002/30777 ,  A61F2002/30785 ,  A61F2002/30787 ,  A61F2002/30795 ,  A61F2002/30797 ,  A61F2002/30808 ,  A61F2002/3081 ,  A61F2002/30836 ,  A61F2002/3085 ,  A61F2002/30861 ,  A61F2002/30879 ,  A61F2002/30892 ,  A61F2002/30894 ,  A61F2002/30904 ,  A61F2002/30906 ,  A61F2002/30909 ,  A61F2002/4475 ,  A61F2002/448 ,  A61F2002/449 ,  A61F2002/4619 ,  A61F2002/4623 ,  A61F2002/4627 ,  A61F2002/4629 ,  A61F2002/464 ,  A61F2002/4649 ,  A61F2002/4681 ,  A61F2210/0004 ,  A61F2220/0025 ,  A61F2230/001 ,  A61F2230/0013 ,  A61F2230/0017 ,  A61F2230/0067 ,  A61F2230/0069 ,  A61F2250/0063 ,  A61F2310/00017 ,  A61F2310/00023 ,  A61F2310/00029 ,  A61F2310/00293 ,  A61F2310/00796 ,  A61F2310/00976

摘要： The present invention is directed to a variety of interbody spinal fusion implants (20) having at least a partially frusto-conical configuration. An external thread (28) is employed to increase implant stability and implant surface area, and for the purpose of advancing the spinal fusion implant (20) into the fusion site. The spinal fusion implants (20) of the present invention may be relatively solid or hollow and may have surface roughening to promote bone ingrowth and stability. The spinal fusion implants (20) of the present invention may have wells extending into the material of the implant from the surface for the purpose of holding fusion promoting materials and to provide for areas of bone ingrowth fixation.