US Patent No: 7,604,664

Number of patents in Portfolio can not be more than 2000

Spinal baseplates with ball joint coupling and a retaining member

ALSO PUBLISHED AS: 20030069643

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An artificial intervertebral disc having a pair of opposing plate members for seating against opposing vertebral bone surfaces, separated by a spring mechanism. The preferred spring mechanism is at least one spirally slotted belleville washer having radially extending grooves. One plate member has a centrally located ball-shaped protrusion that is rotatably coupled in a central socket in the narrow end of the belleville washer, and the wide end of the belleville washer is held against the other plate member by a shield with rivets. Therefore, the disc assembly will not come apart under tension loads applied to the plate members, and the location of the ball joint coupling provides the disc assembly with a centroid of motion that is centrally located between the vertebral bone surfaces, both causing the disc assembly to behave similarly in these respects to a healthy natural intervertebral disc.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SPINECORE, INC.SUMMIT, NJ153

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ralph, James D Seaside Park, NJ 268 12820
Tatar, Stephen Montville, NJ 148 5001

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SPINECORE, INC. (8)
2002/0111,682 Intervertebral spacer device having a radially thinning belleville spring 67 2001
6,673,113 Intervertebral spacer device having arch shaped spring elements 138 2001
6,645,249 Intervertebral spacer device having a multi-pronged domed spring 103 2001
2003/0069,642 Artificial intervertebral disc having a flexible wire mesh vertebral body contact element 56 2002
6,918,934 Artificial intervertebral disc having a slotted belleville washer force restoring element 43 2002
7,022,139 Artificial intervertebral disc having limited rotation using a captured ball and socket joint with a solid ball and retaining cap 40 2002
7,115,132 Static trials and related instruments and methods for use in implanting an artificial intervertebral disc 62 2002
6,706,068 Artificial disc replacements with natural kinematics 241 2003
 
WALDEMAR LINK GMBH & CO. KG (4)
4,997,432 Surgical instrument set 400 1989
5,122,130 Forceps for inserting intervertebral device 387 1990
5,401,269 Intervertebral disc endoprosthesis 623 1993
5,556,431 Intervertebral disc endoprosthesis 519 1994
 
HOWMEDICA OSTEONICS CORP. (3)
5,676,701 Low wear artificial spinal disc 561 1995
5,782,832 Spinal fusion implant and method of insertion thereof 463 1996
6,136,031 Artificial intervertebral disc 250 1998
 
MEDTRONIC SOFAMOR DANEK, INC. (3)
5,674,296 Human spinal disc prosthesis 730 1996
6,156,067 Human spinal disc prosthesis 504 1997
6,001,130 Human spinal disc prosthesis with hinges 587 1997
 
SDGI HOLDINGS, INC. (3)
5,425,773 Intervertebral disk arthroplasty device 466 1994
5,562,738 Intervertebral disk arthroplasty device 506 1995
6,019,792 Articulating spinal implant 474 1998
 
STRYKER SPINE (3)
6,582,466 Intervertebral disc prosthesis with reduced friction 230 2001
6,582,468 Intervertebral disc prosthesis with compressible body 213 2001
2003/0028,249 Intervertebral implant with toothed faces 120 2002
 
Gordon, Maya, Roberts and Thomas, Number 1, LLC (2)
6,228,118 Multiple axis intervertebral prosthesis 250 1998
6,146,421 Multiple axis intervertebral prosthesis 339 1999
 
WARSAW ORTHOPEDIC, INC. (2)
6,179,874 Articulating spinal implant 318 1999
2003/0060,886 Intervertebral spacers 56 2002
 
ZIMMER GMBH (2)
4,932,969 Joint endoprosthesis 368 1987
5,370,697 Artificial intervertebral disk member 576 1993
 
AXIOMED SPINE CORPORATION (1)
2003/0208,271 Artificial disc 83 2003
 
CHOICE SPINE, LP (1)
6,682,562 Intervertebral disc prosthesis 212 2003
 
CHUBU BEARING KABUSHIKIKAISHA (1)
5,899,941 Artificial intervertebral disk 297 1997
 
DEPUY ACROMED, INC. (1)
2003/0055,503 Alignment verification device and method of use 57 2001
 
DERR, BERN (1)
4,759,766 Intervertebral disc endoprosthesis 516 1987
 
DISC REPLACEMENT TECHNOLOGIES, INC. (1)
6,039,763 Articulating spinal disc prosthesis 379 1998
 
DYNAMIC SPINE, INC. (1)
5,827,328 Intervertebral prosthetic device 329 1996
 
FLEISCHAUER, MARIAN PERSONAL REPRESENTATIVE OF KENNETH E. FLEISCHAUER DEC'D (1)
4,605,417 Prosthetic joint 57 1984
 
Health & Research Services Inc. (1)
4,759,769 Artificial spinal disc 706 1987
 
IMDS LLC (1)
2004/0010,316 Intervertebral device and method of use 181 2003
 
J.B.S. Limited Company (1)
5,314,477 Prosthesis for intervertebral discs and instruments for implanting it 518 1992
 
MIDAS REX, L.P. (1)
5,236,460 Vertebral body prosthesis 361 1991
 
SCIENT'X SA (1)
6,517,580 Disk prosthesis for cervical vertebrae 236 2000
 
SOFAMOR DANEK HOLDINGS, INC. (1)
6,113,637 Artificial intervertebral joint permitting translational and rotational motion 414 1998
 
SPETZLER, ROBERT F. (1)
5,258,007 Powered surgical instrument 133 1992
 
SpineFore, Inc. (1)
6,610,092 Intervertebral spacer device having a slotted partial circular domed arch strip spring 127 2001
 
SYNTHES USA, LLC (1)
5,507,816 Spinal vertebrae implants 344 1994
 
TECKENTRUP GMBH & CO. KG (1)
* 5,112,178 Spring washer for securing screws, nuts or the like 36 1991
 
THIRD MILLENNIUM ENGINEERING, LLC (1)
5,989,291 Intervertebral spacer device 246 1998
 
TORNIER SAS (1)
5,676,702 Elastic disc prosthesis 432 1995
 
X-PANTU-FLEX DRD LIMITED LIABILITY COMPANY (1)
6,375,682 Collapsible, rotatable and expandable spinal hydraulic prosthetic device 354 2001
 
ZIMMER SPINE, INC. (1)
6,368,350 Intervertebral disc prosthesis and method 392 1999
 
Other [Check patent profile for assignment information] (16)
4,309,777 Artificial intervertebral disc 673 1980
5,458,642 Synthetic intervertebral disc 397 1994
5,683,465 Artificial intervertebral disk prosthesis 441 1996
5,755,796 Prosthesis of the cervical intervertebralis disk 243 1996
5,895,428 Load bearing spinal joint implant 364 1996
5,865,846 Human spinal disc prosthesis 619 1997
* 5,893,889 Artificial disc 446 1997
5,888,226 Intervertebral prosthetic disc 480 1997
6,063,121 Vertebral body prosthesis 357 1998
2001/0016,773 Spinal disc 120 2000
* 2002/0084,562 Disk spring 6 2000
* 2003/0216,810 Artificial intervertebral disc utilizing a ball joint coupling 51 2002
2003/0233,097 Artificial disc replacement (ADR) distraction sleeves and cutting guides 74 2003
2003/0233,148 Modular components to improve the fit of artificial disc replacements 87 2003
2004/0030,390 Intradiscal component installation apparatus and methods 80 2003
2004/0002,759 Fusion and arthroplasty devices configured to receive bone growth promoting substances 75 2003
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
SPINECORE, INC. (2)
8,777,959 Intervertebral disc and insertion methods therefor 0 2006
* 8,425,609 Artificial intervertebral disc having a bored semispherical bearing with a compression locking post and retaining caps 0 2008
* Cited By Examiner

Maintenance Fees

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7.5 Year Payment $3600.00 $1800.00 $900.00 Apr 20, 2017
11.5 Year Payment $7400.00 $3700.00 $1850.00 Apr 20, 2021
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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