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)

  • WARSAW ORTHOPEDIC, INC.

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McGahan, Thomas Memphis, US 13 1239
Zdeblick, Thomas Middleton, US 25 2976

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (177)
4,349,921 Intervertebral disc prosthesis 1055 1980
4,302,397 Preparation of furfuryl alcohol from furfural 39 1980
4,309,777 Artificial intervertebral disc 745 1980
4,545,374 Method and instruments for performing a percutaneous lumbar diskectomy 893 1982
4,573,448 Method for decompressing herniated intervertebral discs 596 1983
4,526,909 Polymethylmethacrylate delivery system for bone morphogenetic protein 87 1984
4,501,269 Process for fusing bone joints 676 1984
4,596,574 Biodegradable porous ceramic delivery system for bone morphogenetic protein 293 1984
4,736,738 Instrument kit and procedure for performing posterior lumbar interbody fusion 270 1985
4,678,470 Bone-grafting material 263 1985
4,599,086 Spine stabilization device and method 617 1985
4,743,259 Use of demineralized bone matrix in the repair of segmental defects 99 1986
4,743,256 Surgical prosthetic implant facilitating vertebral interbody fusion and method 767 1987
4,714,469 Spinal implant 611 1987
4,772,287 Prosthetic disc and method of implanting 800 1987
4,863,476 Spinal implant 737 1987
4,759,766 Intervertebral disc endoprosthesis 615 1987
4,820,305 Place holder, in particular for a vertebra body 326 1987
4,834,757 Prosthetic implant 964 1988
4,877,020 Apparatus for bone graft 448 1988
4,917,704 Intervertebral prosthesis 347 1988
* 5,015,247 Threaded spinal implant 1060 1988
4,892,545 Vertebral lock 279 1988
4,904,261 Spinal implants 581 1988
4,961,740 V-thread fusion cage and method of fusing a bone joint 763 1988
4,878,915 Surgical prosthetic implant facilitating vertebral interbody fusion 830 1989
5,002,576 Intervertebral disk endoprosthesis 477 1989
4,936,848 Implant for vertebrae 422 1989
4,932,975 Vertebral prosthesis 608 1989
5,055,104 Surgically implanting threaded fusion cages between adjacent low-back vertebrae by an anterior approach 593 1989
5,068,122 Process for forming a bioactive hydroxyapatite film 50 1989
5,062,850 Axially-fixed vertebral body prosthesis and method of fixation 235 1990
5,164,187 Hydroxyapatite prosthesis coatings 80 1990
5,645,591 Synthetic bone matrix 85 1990
5,330,826 Preparation of ceramic-metal coatings 56 1990
5,030,474 Method for forming hydroxyapatite coating film using coating liquor containing hydroxyapatite 51 1990
* 5,092,893 Human orthopedic vertebra implant 209 1990
* 5,108,395 Implant for anterior dorsolumbar spinal osteosynthesis, intended for the correction of kyphoses 200 1990
5,147,404 Vertebra prosthesis 221 1990
5,071,437 Artificial disc 738 1990
5,020,519 Sagittal approximator 216 1990
5,128,169 Method for forming hydroxyapatite coating film 44 1991
RE34037 Support for biomedical implant device 19 1991
5,236,456 Osteogenic composition and implant containing same 181 1991
5,192,327 Surgical prosthetic implant for vertebrae 959 1991
5,188,670 Apparatus for hydroxyapatite coatings of substrates 46 1991
5,306,307 Spinal disk implant 422 1991
5,290,312 Artificial vertebral body 442 1991
5,236,460 Vertebral body prosthesis 408 1991
5,147,402 Implant for ingrowth of osseous tissue 174 1991
5,282,861 Open cell tantalum structures for cancellous bone implants and cell and tissue receptors 398 1992
5,306,309 Spinal disk implant and implantation kit 789 1992
5,344,654 Prosthetic devices having enhanced osteogenic properties 111 1992
5,279,831 Hydroxyapatite prosthesis coatings 82 1992
5,306,310 Vertebral prosthesis 272 1992
5,348,026 Osteoinductive bone screw 99 1992
5,741,253 Method for inserting spinal implants 635 1992
5,458,638 Non-threaded spinal implant 530 1992
5,455,231 Mineralized collagen 82 1992
5,405,391 Fusion stabilization chamber 237 1993
5,425,769 Composition of material for osseous repair 84 1993
5,439,464 Method and instruments for performing arthroscopic spinal surgery 417 1993
5,484,437 Apparatus and method of inserting spinal implants 847 1993
5,338,433 Chromium alloy electrodeposition and surface fixation of calcium phosphate ceramics 14 1993
5,360,430 Intervertebral locking device 311 1993
5,423,816 Intervertebral locking device 308 1993
5,425,772 Prosthetic implant for intervertebral spinal fusion 649 1993
5,443,514 Method for using spinal implants 617 1993
* 5,397,364 Anterior interbody fusion device 573 1993
5,464,439 Flexible membranes produced from organic bone matrix for skeletal repair and reconstruction 142 1993
5,507,813 Shaped materials derived from elongate bone particles 359 1993
5,417,975 Chemical Compound 62 1994
5,514,180 Prosthetic intervertebral devices 807 1994
5,439,684 Shaped, swollen demineralized bone and its use in bone repair 344 1994
5,443,515 Vertebral body prosthetic implant with slidably positionable stabilizing member 199 1994
5,431,658 Facilitator for vertebrae grafts and prostheses 464 1994
5,540,688 Intervertebral stabilization device incorporating dampers 560 1994
5,510,396 Process for producing flowable osteogenic composition containing demineralized bone particles 165 1994
D377095 Interbody spinal implant 67 1994
D377096 Interbody spinal implant 58 1994
5,549,612 Osteosynthesis plate system 357 1994
* 5,683,463 Intersomatic vertebral column implant 220 1994
5,571,109 System for the immobilization of vertebrae 457 1994
5,489,307 Spinal stabilization surgical method 620 1994
5,489,308 Spinal implant 541 1994
5,562,736 Method for surgical implantation of a prosthetic spinal disc nucleus 634 1994
5,423,817 Intervertebral fusing device 164 1994
5,766,252 Interbody spinal prosthetic implant and method 551 1995
5,585,116 Method of manufacture of a material for osteoplasty from a natural bone tissue and material obtained thereby 55 1995
5,593,409 Interbody spinal fusion implants 608 1995
* 5,772,661 Methods and instrumentation for the surgical correction of human thoracic and lumbar spinal disease from the antero-lateral aspect of the spine 691 1995
5,591,235 Spinal fixation device 301 1995
* 5,782,919 Interbody fusion device and method for restoration of normal spinal anatomy 353 1995
* 5,669,909 Interbody fusion device and method for restoration of normal spinal anatomy 528 1995
5,647,872 Spinal support plates 51 1995
5,697,889 Surgical instruments useful for endoscopic spinal procedures 155 1995
5,646,084 Polymerization process using diene containing catalysts 19 1995
5,601,556 Apparatus for spondylolisthesis reduction 128 1995
5,609,635 Lordotic interbody spinal fusion implants 746 1995
* 5,683,391 Anterior spinal instrumentation and method for implantation and revision 253 1995
5,697,977 Method and apparatus for spondylolisthesis reduction 111 1995
5,797,909 Apparatus for inserting spinal implants 538 1995
5,683,394 Fusion mass constrainer 239 1995
5,658,285 Rehabitable connecting-screw device for a bone joint, intended in particular for stabilizing at least two vertebrae 71 1995
* 5,681,311 Osteosynthesis apparatus 382 1995
5,609,636 Spinal implant 517 1996
5,766,253 Spinal fusion device 224 1996
5,776,196 Prosthesis for spanning a space formed upon removal of an intervertebral disk 207 1996
5,676,666 Cervical spine stabilization system 274 1996
* 5,645,598 Spinal fusion device with porous material 326 1996
* 5,658,337 Intervertebral fusion implant 333 1996
5,713,899 Cervical cage designed for the performance of intersomatic arthrodesis 225 1996
* 5,702,453 Adjustable vertebral body replacement 367 1996
* 5,674,296 Human spinal disc prosthesis 825 1996
6,149,686 Threaded spinal implant with bone ingrowth openings 89 1996
* 6,416,515 Spinal fixation system 200 1996
5,782,831 Method an device for spinal deformity reduction using a cable and a cable tensioning system 195 1996
* 5,776,197 Adjustable vertebral body replacement 149 1996
* 5,904,719 Interbody fusion device having partial circular section cross-sectional segments 189 1997
5,888,224 Implant for intervertebral space 424 1997
* 5,885,287 Self-tapping interbody bone implant 63 1997
* 6,010,502 Method and apparatus for conjoining bone bodies 144 1997
5,941,880 Coupling member for cross-linking intervertebral cage devices 33 1998
* 6,206,922 Methods and instruments for interbody fusion 306 1998
6,042,582 Instrumentation and method for facilitating insertion of spinal implant 254 1998
6,066,175 Fusion stabilization chamber 314 1998
* 6,156,037 Anterior lateral spine cage-plate fixation device and technique 141 1998
* 6,143,032 Intervertebral implant 215 1998
* 6,241,770 Interbody spinal fusion implant having an anatomically conformed trailing end 157 1999
* 6,325,827 Intervertebral implant 106 1999
* 6,251,140 Interlocking spinal inserts 185 1999
6,030,390 Disc space spreader 51 1999
* 6,179,875 Implant for fusing lumbar vertebrae and method of using same 74 1999
* 6,432,107 Enhanced surface area spinal fusion devices 166 2000
6,436,139 Interbody fusion device with anti-rotation features 59 2000
* 6,821,298 Anterior expandable spinal fusion cage system 195 2000
6,342,074 Anterior lumbar interbody fusion implant and method for fusing adjacent vertebrae 206 2000
* 6,485,517 Nested interbody spinal fusion implants 151 2000
* 6,432,140 Intervertebral retrieval device 131 2000
* 6,395,031 Expandable intervertebral spacers 164 2000
* 6,428,575 Prosthetic cage for spine 64 2001
* 6,471,724 Methods and instruments for interbody fusion 186 2001
* 6,576,017 Spinal implant with attached ligament and methods 175 2001
6,491,696 Device for distracting bone segments, especially in the area of a jaw 25 2001
* 6,749,612 Spinal osteosynthesis system with improved rigidity 43 2001
* 6,926,737 Spinal fusion apparatus and method 59 2002
* 6,835,206 Anterior expandable spinal fusion cage system 227 2002
* 7,740,630 Anterior cervical plate system having vertebral body engaging anchors and connecting plate 20 2002
* 7,594,931 Vertebral cage device with modular fixation 70 2002
6,695,851 Methods and instruments for interbody fusion 157 2002
* 7,637,951 Nested interbody spinal fusion implants 69 2002
* 7,682,392 Regenerative implants for stabilizing the spine and devices for attachment of said implants 22 2002
6,875,213 Method of inserting spinal implants with the use of imaging 131 2003
* 6,881,215 Backbone osteosynthesis system with clamping means in particular for anterior fixing 89 2003
* 7,674,297 Anatomic vertebral cage 35 2003
* 7,806,932 Spinal implant 23 2003
* 7,195,643 Convex spinal fusion interbody spacer 36 2003
7,235,105 Threaded center line cage with winged end gap 29 2003
* 7,182,782 Spinal fusion system and method for fusing spinal bones 78 2003
* 7,156,875 Arcuate artificial hemi-lumbar interbody spinal fusion implant having an asymmetrical leading end 58 2003
2004/0153,089 Methods and instruments for interbody fusion 20 2004
* 7,621,958 Methods and instruments for interbody fusion 26 2004
6,942,698 Spinal fusion interbody spacer 91 2004
* 7,799,081 System and method for spinal fusion 101 2004
* 7,481,840 Multi-piece artificial spinal disk replacement device with selectably positioning articulating element 58 2004
* 7,481,839 Bioresorbable interspinous process implant for use with intervertebral disk remediation or replacement implants and procedures 31 2004
* 7,674,293 Crossbar spinal prosthesis having a modular design and related implantation methods 49 2005
* 7,621,960 Modular interbody fusion implant 47 2005
* 7,540,882 Artificial spinal fusion implant with asymmetrical leading end 49 2005
* 7,708,760 Tri-joint implant 9 2005
* 7,611,536 Hemi-interbody spinal fusion implants manufactured from a major long bone ring 47 2006
* 7,867,277 Spinal fusion implant and related methods 46 2006
* 2008/0119,934 REVISION DEVICE 3 2006
* 7,655,028 Spinal fusion system and method for fusing spinal bones 6 2007
* 2009/0254,183 Spinal Arthroplasty Device and Method 8 2009
* 2010/0145,460 ZERO-PROFILE INTERBODY SPACER AND COUPLED PLATE ASSEMBLY 56 2009
* 2010/0168,863 SPINAL DISC PROSTHESIS SYSTEM 1 2010
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (29)
8,858,635 Intervertebral disc prosthesis 3 2005
8,142,503 Devices and methods for facilitating controlled bone growth or repair 26 2006
8,465,546 Intervertebral disc prosthesis insertion assemblies 16 2007
9,333,095 Intervertebral disc prosthesis, surgical methods, and fitting tools 0 2008
8,343,219 Intersomatic cage, intervertebral prosthesis, anchoring device and implantation instruments 34 2008
8,257,439 Intervertebral disc prosthesis 14 2009
8,267,999 Intervertebral disc prosthesis 16 2009
* 8,617,246 Devices and methods for facilitating controlled bone growth or repair 2 2010
* 9,066,815 Spinal implant with attachment system 0 2010
* 2011/0166,658 SPINAL IMPLANT WITH ATTACHMENT SYSTEM 22 2010
8,840,677 Allograft bone plugs, systems and techniques 5 2010
8,979,932 Intervertebral disc prosthesis 0 2010
* 2011/0238,184 METHODS AND INSTRUMENTS FOR INTERBODY FUSION 4 2011
8,974,532 Intervertebral disc prosthesis 1 2011
8,523,908 Devices and methods for facilitating controlled bone growth or repair 12 2012
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 2 2012
9,295,488 Joint fusion 0 2012
* 2012/0310,282 DEVICE AND METHOD FOR THE PREVENTION OF MULTI-LEVEL VERTEBRAL EXTENSION 2 2012
8,771,284 Intervertebral disc prosthesis and instrumentation for insertion of the prosthesis between the vertebrae 3 2012
9,380,932 Retractor devices for minimally invasive access to the spine 0 2012
9,039,774 Anchoring device and system for an intervertebral implant, intervertebral implant and implantation instrument 1 2013
9,271,742 System for joint fusion 0 2013
9,271,743 System for joint fusion 0 2013
8,906,093 Devices and methods for facilitating controlled bone growth or repair 0 2013
9,526,548 System for joint fusion 0 2014
9,463,091 Intervertebral implant having extendable bone fixation members 0 2015
9,216,096 Intervertebral implants and related tools 1 2015
9,468,534 Spinal implant with attachment system 0 2015
* Cited By Examiner

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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 - 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