US Patent No: 7,985,258

Number of patents in Portfolio can not be more than 2000

Methods and instruments for interbody fusion

ALSO PUBLISHED AS: 20100125333
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Abstract

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A laparoscopic surgical technique is provided for preparing a site for implantation of a novel fusion device or implant. In accordance with one embodiment of the technique, a laparoscope is provided having an outer sleeve with distraction fingers at one end to distract the disc space. The laparoscope provides a sealed working channel to the disc space, through which the disc space is distracted, the vertebral endplates and surrounding disc is reamed, and the fusion device inserted. A distraction plug is provided for centering the outer sleeve and for providing midline distraction of the disc space. In one embodiment, a fusion device includes diverging bone screws passing through an end wall and upper and lower walls of the device to engage the adjacent vertebrae. In another embodiment, a connector plate is engaged to bilaterally position fusion devices to prevent rotation and resist expulsion of the devices from the disc space.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
WARSAW ORTHOPEDIC, INC.WARSAW, IN1741

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McGahan, Thomas Memphis, TN 15 871
Zdeblick, Thomas Middletown, WI 29 2136

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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D377095 Interbody spinal implant 63 1994
D377096 Interbody spinal implant 52 1994
5,593,409 Interbody spinal fusion implants 510 1995
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6,821,298 Anterior expandable spinal fusion cage system 142 2000
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6,835,206 Anterior expandable spinal fusion cage system 134 2002
7,740,630 Anterior cervical plate system having vertebral body engaging anchors and connecting plate 8 2002
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The Johns Hopkins University (2)
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5,338,433 Chromium alloy electrodeposition and surface fixation of calcium phosphate ceramics 14 1993
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (2)
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ZIMMER DENTAL, INC. (2)
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CHOW, DONALD (1)
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LANX, LLC (1)
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5,904,719 Interbody fusion device having partial circular section cross-sectional segments 138 1997
 
The Dow Chemical Company (1)
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The J7 Summit Medical Group, LLL (1)
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The United States of America as represented by the Secretary of the Navy (1)
5,405,391 Fusion stabilization chamber 181 1993
 
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Other [Check patent profile for assignment information] (19)
4,349,921 Intervertebral disc prosthesis 878 1980
4,309,777 Artificial intervertebral disc 668 1980
4,545,374 Method and instruments for performing a percutaneous lumbar diskectomy 750 1982
4,736,738 Instrument kit and procedure for performing posterior lumbar interbody fusion 226 1985
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4,820,305 Place holder, in particular for a vertebra body 289 1987
4,877,020 Apparatus for bone graft 366 1988
5,360,430 Intervertebral locking device 300 1993
5,423,816 Intervertebral locking device 239 1993
5,514,180 Prosthetic intervertebral devices 658 1994
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5,423,817 Intervertebral fusing device 143 1994
5,601,556 Apparatus for spondylolisthesis reduction 107 1995
5,697,977 Method and apparatus for spondylolisthesis reduction 82 1995
6,066,175 Fusion stabilization chamber 191 1998
6,030,390 Disc space spreader 35 1999
6,432,140 Intervertebral retrieval device 79 2000
6,926,737 Spinal fusion apparatus and method 42 2002
2004/0153,089 Methods and instruments for interbody fusion 15 2004

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
LDR MEDICAL (6)
8,858,635 Intervertebral disc prosthesis 0 2005
8,465,546 Intervertebral disc prosthesis insertion assemblies 2 2007
8,343,219 Intersomatic cage, intervertebral prosthesis, anchoring device and implantation instruments 7 2008
8,257,439 Intervertebral disc prosthesis 5 2009
8,267,999 Intervertebral disc prosthesis 5 2009
8,771,284 Intervertebral disc prosthesis and instrumentation for insertion of the prosthesis between the vertebrae 0 2012
 
DEPUY SYNTHES PRODUCTS, LLC (3)
8,617,246 Devices and methods for facilitating controlled bone growth or repair 0 2010
8,840,677 Allograft bone plugs, systems and techniques 0 2010
8,523,908 Devices and methods for facilitating controlled bone growth or repair 5 2012
 
DEPUY SPINE, INC. (1)
8,142,503 Devices and methods for facilitating controlled bone growth or repair 11 2006

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