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, NJ156

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 269 13779
Tatar, Stephen Montville, NJ 148 5372

Cited Art Landscape

Patent Info (Count) # Cites Year
 
IMDS LLC (1)
2004/0010,316 Intervertebral device and method of use 191 2003
 
Other [Check patent profile for assignment information] (15)
4,309,777 Artificial intervertebral disc 691 1980
5,458,642 Synthetic intervertebral disc 416 1994
5,683,465 Artificial intervertebral disk prosthesis 463 1996
5,755,796 Prosthesis of the cervical intervertebralis disk 251 1996
5,895,428 Load bearing spinal joint implant 380 1996
5,865,846 Human spinal disc prosthesis 646 1997
* 5,893,889 Artificial disc 474 1997
5,888,226 Intervertebral prosthetic disc 504 1997
6,063,121 Vertebral body prosthesis 376 1998
* 2002/0084,562 Disk spring 6 2000
* 2003/0216,810 Artificial intervertebral disc utilizing a ball joint coupling 55 2002
2003/0233,097 Artificial disc replacement (ADR) distraction sleeves and cutting guides 79 2003
2003/0233,148 Modular components to improve the fit of artificial disc replacements 92 2003
2004/0030,390 Intradiscal component installation apparatus and methods 85 2003
2004/0002,759 Fusion and arthroplasty devices configured to receive bone growth promoting substances 81 2003
 
DERR, BERN (1)
4,759,766 Intervertebral disc endoprosthesis 543 1987
 
SDGI HOLDINGS, INC. (3)
5,425,773 Intervertebral disk arthroplasty device 485 1994
5,562,738 Intervertebral disk arthroplasty device 527 1995
6,019,792 Articulating spinal implant 496 1998
 
FLEISCHAUER, MARIAN PERSONAL REPRESENTATIVE OF KENNETH E. FLEISCHAUER DEC'D (1)
4,605,417 Prosthetic joint 58 1984
 
ZIMMER GMBH (2)
4,932,969 Joint endoprosthesis 383 1987
5,370,697 Artificial intervertebral disk member 598 1993
 
MEDTRONIC SOFAMOR DANEK, INC. (3)
5,674,296 Human spinal disc prosthesis 761 1996
6,156,067 Human spinal disc prosthesis 531 1997
6,001,130 Human spinal disc prosthesis with hinges 614 1997
 
AXIOMED SPINE CORPORATION (1)
2003/0208,271 Artificial disc 89 2003
 
SOFAMOR DANEK HOLDINGS, INC. (1)
6,113,637 Artificial intervertebral joint permitting translational and rotational motion 436 1998
 
HOWMEDICA OSTEONICS CORP. (3)
5,676,701 Low wear artificial spinal disc 586 1995
5,782,832 Spinal fusion implant and method of insertion thereof 484 1996
6,136,031 Artificial intervertebral disc 269 1998
 
DYNAMIC SPINE, INC. (1)
5,827,328 Intervertebral prosthetic device 342 1996
 
STRYKER SPINE (3)
6,582,466 Intervertebral disc prosthesis with reduced friction 245 2001
6,582,468 Intervertebral disc prosthesis with compressible body 230 2001
2003/0028,249 Intervertebral implant with toothed faces 136 2002
 
CHUBU BEARING KABUSHIKIKAISHA (1)
5,899,941 Artificial intervertebral disk 307 1997
 
X-PANTU-FLEX DRD LIMITED LIABILITY COMPANY (1)
6,375,682 Collapsible, rotatable and expandable spinal hydraulic prosthetic device 384 2001
 
SPETZLER, ROBERT F. (1)
5,258,007 Powered surgical instrument 139 1992
 
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 252 1998
 
DISC REPLACEMENT TECHNOLOGIES, INC. (1)
6,039,763 Articulating spinal disc prosthesis 398 1998
 
DBD CREDIT FUNDING LLC, AS RESIGNING AGENT (1)
2001/0016,773 Spinal disc 127 2000
 
Health & Research Services Inc. (1)
4,759,769 Artificial spinal disc 738 1987
 
Gordon, Maya, Roberts and Thomas, Number 1, LLC (2)
6,228,118 Multiple axis intervertebral prosthesis 259 1998
6,146,421 Multiple axis intervertebral prosthesis 360 1999
 
MIDAS REX, L.P. (1)
5,236,460 Vertebral body prosthesis 380 1991
 
WARSAW ORTHOPEDIC, INC. (2)
6,179,874 Articulating spinal implant 330 1999
2003/0060,886 Intervertebral spacers 63 2002
 
SCIENT'X SA (1)
6,517,580 Disk prosthesis for cervical vertebrae 249 2000
 
SYNTHES USA, LLC (1)
5,507,816 Spinal vertebrae implants 362 1994
 
CHOICE SPINE, LP (1)
6,682,562 Intervertebral disc prosthesis 224 2003
 
TORNIER SAS (1)
5,676,702 Elastic disc prosthesis 446 1995
 
J.B.S. Limited Company (1)
5,314,477 Prosthesis for intervertebral discs and instruments for implanting it 541 1992
 
ZIMMER SPINE, INC. (1)
6,368,350 Intervertebral disc prosthesis and method 419 1999
 
SPINECORE, INC. (8)
2002/0111,682 Intervertebral spacer device having a radially thinning belleville spring 72 2001
6,673,113 Intervertebral spacer device having arch shaped spring elements 147 2001
6,645,249 Intervertebral spacer device having a multi-pronged domed spring 106 2001
2003/0069,642 Artificial intervertebral disc having a flexible wire mesh vertebral body contact element 57 2002
6,918,934 Artificial intervertebral disc having a slotted belleville washer force restoring element 44 2002
7,022,139 Artificial intervertebral disc having limited rotation using a captured ball and socket joint with a solid ball and retaining cap 42 2002
7,115,132 Static trials and related instruments and methods for use in implanting an artificial intervertebral disc 69 2002
6,706,068 Artificial disc replacements with natural kinematics 256 2003
 
SpineFore, Inc. (1)
6,610,092 Intervertebral spacer device having a slotted partial circular domed arch strip spring 136 2001
 
DEPUY ACROMED, INC. (1)
2003/0055,503 Alignment verification device and method of use 58 2001
 
WALDEMAR LINK GMBH & CO. KG (4)
4,997,432 Surgical instrument set 422 1989
5,122,130 Forceps for inserting intervertebral device 406 1990
5,401,269 Intervertebral disc endoprosthesis 647 1993
5,556,431 Intervertebral disc endoprosthesis 545 1994
* 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
Fee Large entity fee small entity fee micro entity fee
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