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, NJ151

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 266 12170
Tatar, Stephen Montville, NJ 147 4727

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SPINECORE, INC. (8)
2002/0111,682 Intervertebral spacer device having a radially thinning belleville spring 64 2001
6,673,113 Intervertebral spacer device having arch shaped spring elements 130 2001
6,645,249 Intervertebral spacer device having a multi-pronged domed spring 100 2001
2003/0069,642 Artificial intervertebral disc having a flexible wire mesh vertebral body contact element 55 2002
6,918,934 Artificial intervertebral disc having a slotted belleville washer force restoring element 42 2002
7,022,139 Artificial intervertebral disc having limited rotation using a captured ball and socket joint with a solid ball and retaining cap 39 2002
7,115,132 Static trials and related instruments and methods for use in implanting an artificial intervertebral disc 57 2002
6,706,068 Artificial disc replacements with natural kinematics 231 2003
 
WALDEMAR LINK GMBH & CO. KG (4)
4,997,432 Surgical instrument set 388 1989
5,122,130 Forceps for inserting intervertebral device 376 1990
5,401,269 Intervertebral disc endoprosthesis 598 1993
5,556,431 Intervertebral disc endoprosthesis 497 1994
 
HOWMEDICA OSTEONICS CORP. (3)
5,676,701 Low wear artificial spinal disc 541 1995
5,782,832 Spinal fusion implant and method of insertion thereof 449 1996
6,136,031 Artificial intervertebral disc 240 1998
 
MEDTRONIC SOFAMOR DANEK, INC. (3)
5,674,296 Human spinal disc prosthesis 709 1996
6,156,067 Human spinal disc prosthesis 488 1997
6,001,130 Human spinal disc prosthesis with hinges 572 1997
 
SDGI HOLDINGS, INC. (3)
5,425,773 Intervertebral disk arthroplasty device 455 1994
5,562,738 Intervertebral disk arthroplasty device 490 1995
6,019,792 Articulating spinal implant 459 1998
 
STRYKER SPINE (3)
6,582,466 Intervertebral disc prosthesis with reduced friction 218 2001
6,582,468 Intervertebral disc prosthesis with compressible body 205 2001
2003/0028,249 Intervertebral implant with toothed faces 115 2002
 
Gordon, Maya, Roberts and Thomas, Number 1, LLC (2)
6,228,118 Multiple axis intervertebral prosthesis 242 1998
6,146,421 Multiple axis intervertebral prosthesis 325 1999
 
WARSAW ORTHOPEDIC, INC. (2)
6,179,874 Articulating spinal implant 308 1999
2003/0060,886 Intervertebral spacers 54 2002
 
ZIMMER GMBH (2)
4,932,969 Joint endoprosthesis 364 1987
5,370,697 Artificial intervertebral disk member 556 1993
 
AXIOMED SPINE CORPORATION (1)
2003/0208,271 Artificial disc 79 2003
 
CHOICE SPINE, LP (1)
6,682,562 Intervertebral disc prosthesis 202 2003
 
CHUBU BEARING KABUSHIKIKAISHA (1)
5,899,941 Artificial intervertebral disk 285 1997
 
DEPUY ACROMED, INC. (1)
2003/0055,503 Alignment verification device and method of use 54 2001
 
DERR, BERN (1)
4,759,766 Intervertebral disc endoprosthesis 501 1987
 
DISC REPLACEMENT TECHNOLOGIES, INC. (1)
6,039,763 Articulating spinal disc prosthesis 361 1998
 
DYNAMIC SPINE, INC. (1)
5,827,328 Intervertebral prosthetic device 322 1996
 
FLEISCHAUER, MARIAN PERSONAL REPRESENTATIVE OF KENNETH E. FLEISCHAUER DEC'D (1)
4,605,417 Prosthetic joint 56 1984
 
Health & Research Services Inc. (1)
4,759,769 Artificial spinal disc 687 1987
 
IMDS LLC (1)
2004/0010,316 Intervertebral device and method of use 172 2003
 
J.B.S. Limited Company (1)
5,314,477 Prosthesis for intervertebral discs and instruments for implanting it 502 1992
 
MIDAS REX, L.P. (1)
5,236,460 Vertebral body prosthesis 352 1991
 
SCIENT'X SA (1)
6,517,580 Disk prosthesis for cervical vertebrae 226 2000
 
SOFAMOR DANEK HOLDINGS, INC. (1)
6,113,637 Artificial intervertebral joint permitting translational and rotational motion 395 1998
 
SPETZLER, ROBERT F. (1)
5,258,007 Powered surgical instrument 130 1992
 
SpineFore, Inc. (1)
6,610,092 Intervertebral spacer device having a slotted partial circular domed arch strip spring 122 2001
 
SYNTHES USA, LLC (1)
5,507,816 Spinal vertebrae implants 331 1994
 
TECKENTRUP GMBH & CO. KG (1)
5,112,178 Spring washer for securing screws, nuts or the like 35 1991
 
THIRD MILLENNIUM ENGINEERING, LLC (1)
5,989,291 Intervertebral spacer device 239 1998
 
TORNIER SAS (1)
5,676,702 Elastic disc prosthesis 418 1995
 
X-PANTU-FLEX DRD LIMITED LIABILITY COMPANY (1)
6,375,682 Collapsible, rotatable and expandable spinal hydraulic prosthetic device 342 2001
 
ZIMMER SPINE, INC. (1)
6,368,350 Intervertebral disc prosthesis and method 374 1999
 
Other [Check patent profile for assignment information] (16)
4,309,777 Artificial intervertebral disc 662 1980
5,458,642 Synthetic intervertebral disc 385 1994
5,683,465 Artificial intervertebral disk prosthesis 428 1996
5,755,796 Prosthesis of the cervical intervertebralis disk 237 1996
5,895,428 Load bearing spinal joint implant 348 1996
5,865,846 Human spinal disc prosthesis 601 1997
5,893,889 Artificial disc 431 1997
5,888,226 Intervertebral prosthetic disc 467 1997
6,063,121 Vertebral body prosthesis 345 1998
2001/0016,773 Spinal disc 113 2000
2002/0084,562 Disk spring 6 2000
2003/0216,810 Artificial intervertebral disc utilizing a ball joint coupling 50 2002
2003/0233,097 Artificial disc replacement (ADR) distraction sleeves and cutting guides 73 2003
2003/0233,148 Modular components to improve the fit of artificial disc replacements 85 2003
2004/0030,390 Intradiscal component installation apparatus and methods 75 2003
2004/0002,759 Fusion and arthroplasty devices configured to receive bone growth promoting substances 71 2003

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

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