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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Patent Owner(s)

Patent OwnerAddressTotal Patents
WARSAW ORTHOPEDIC, INC.WARSAW, IN1699

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McGahan, Thomas Memphis, TN 15 824
Zdeblick, Thomas Middletown, WI 29 2035

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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The Johns Hopkins University (2)
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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)
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4,309,777 Artificial intervertebral disc 654 1980
4,545,374 Method and instruments for performing a percutaneous lumbar diskectomy 730 1982
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5,360,430 Intervertebral locking device 293 1993
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5,423,817 Intervertebral fusing device 140 1994
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5,697,977 Method and apparatus for spondylolisthesis reduction 81 1995
6,066,175 Fusion stabilization chamber 176 1998
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Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
LDR MEDICAL (5)
8,465,546 Intervertebral disc prosthesis insertion assemblies 2 2007
8,343,219 Intersomatic cage, intervertebral prosthesis, anchoring device and implantation instruments 5 2008
8,257,439 Intervertebral disc prosthesis 4 2009
8,267,999 Intervertebral disc prosthesis 4 2009
8,771,284 Intervertebral disc prosthesis and instrumentation for insertion of the prosthesis between the vertebrae 0 2012
 
DEPUY SYNTHES PRODUCTS, LLC (2)
8,617,246 Devices and methods for facilitating controlled bone growth or repair 0 2010
8,523,908 Devices and methods for facilitating controlled bone growth or repair 2 2012
 
DEPUY SPINE, INC. (1)
8,142,503 Devices and methods for facilitating controlled bone growth or repair 7 2006

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3.5 Year Payment $1600.00 $800.00 $400.00 Jan 26, 2015
7.5 Year Payment $3600.00 $1800.00 $900.00 Jan 26, 2019
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 26, 2023
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Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00

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