US Patent No: 7,985,258

Number of patents in Portfolio can not be more than 2000

Methods and instruments for interbody fusion

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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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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McGahan, Thomas Memphis, US 13 1052
Zdeblick, Thomas Middleton, US 25 2600

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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7,235,105 Threaded center line cage with winged end gap 20 2003
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5,236,460 Vertebral body prosthesis 390 1991
 
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4,743,259 Use of demineralized bone matrix in the repair of segmental defects 90 1986
 
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5,549,612 Osteosynthesis plate system 319 1994
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (2)
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ZIMMER SPINE, INC. (12)
4,936,848 Implant for vertebrae 399 1989
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5,489,307 Spinal stabilization surgical method 582 1994
5,489,308 Spinal implant 512 1994
5,609,636 Spinal implant 464 1996
5,676,666 Cervical spine stabilization system 259 1996
* 5,658,337 Intervertebral fusion implant 305 1996
6,149,686 Threaded spinal implant with bone ingrowth openings 86 1996
* 6,416,515 Spinal fixation system 189 1996
* 5,885,287 Self-tapping interbody bone implant 53 1997
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5,443,515 Vertebral body prosthetic implant with slidably positionable stabilizing member 174 1994
 
The United States of America as represented by the Secretary of the Navy (1)
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SDGI HOLDINGS, INC. (9)
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6,875,213 Method of inserting spinal implants with the use of imaging 115 2003
 
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* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
* 2011/0238,184 METHODS AND INSTRUMENTS FOR INTERBODY FUSION 0 2011
* 2012/0310,282 DEVICE AND METHOD FOR THE PREVENTION OF MULTI-LEVEL VERTEBRAL EXTENSION 1 2012
 
LDR MEDICAL (11)
8,858,635 Intervertebral disc prosthesis 1 2005
8,465,546 Intervertebral disc prosthesis insertion assemblies 7 2007
8,343,219 Intersomatic cage, intervertebral prosthesis, anchoring device and implantation instruments 22 2008
8,257,439 Intervertebral disc prosthesis 8 2009
8,267,999 Intervertebral disc prosthesis 12 2009
8,979,932 Intervertebral disc prosthesis 0 2010
8,974,532 Intervertebral disc prosthesis 0 2011
9,078,765 Vertebral cage device with modular fixation 0 2012
9,044,337 Anchoring device and system for an intervertebral implant, intervertebral implant and implantation instrument 0 2012
8,771,284 Intervertebral disc prosthesis and instrumentation for insertion of the prosthesis between the vertebrae 2 2012
9,039,774 Anchoring device and system for an intervertebral implant, intervertebral implant and implantation instrument 0 2013
 
DEPUY SPINE, INC. (1)
8,142,503 Devices and methods for facilitating controlled bone growth or repair 20 2006
 
CENTINEL SPINE, INC. (2)
* 9,066,815 Spinal implant with attachment system 0 2010
* 2011/0166,658 SPINAL IMPLANT WITH ATTACHMENT SYSTEM 12 2010
 
DEPUY SYNTHES PRODUCTS, LLC (4)
* 8,617,246 Devices and methods for facilitating controlled bone growth or repair 1 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 9 2012
8,906,093 Devices and methods for facilitating controlled bone growth or repair 0 2013
 
Pinnacle Spine Group, LLC (1)
9,216,096 Intervertebral implants and related tools 0 2015
* Cited By Examiner

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