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, IN1743

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McGahan, Thomas Memphis, TN 15 876
Zdeblick, Thomas Middletown, WI 29 2158

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 513 1995
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6,436,139 Interbody fusion device with anti-rotation features 46 2000
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6,835,206 Anterior expandable spinal fusion cage system 135 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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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)
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Other [Check patent profile for assignment information] (19)
4,349,921 Intervertebral disc prosthesis 883 1980
4,309,777 Artificial intervertebral disc 669 1980
4,545,374 Method and instruments for performing a percutaneous lumbar diskectomy 752 1982
4,736,738 Instrument kit and procedure for performing posterior lumbar interbody fusion 227 1985
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5,514,180 Prosthetic intervertebral devices 660 1994
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5,423,817 Intervertebral fusing device 143 1994
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6,432,140 Intervertebral retrieval device 82 2000
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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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