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

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ALSO PUBLISHED AS: 20030069643
ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

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

Related Publications

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SPINECORE, INC.SUMMIT, NJ138

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ralph, James D Seaside Park, NJ 214 9971
Tatar, Stephen Montville, NJ 106 3708

Cited Art

Patent Info (Count) # Cites Year
 
SPINECORE, INC. (8)
2002/0111,682 Intervertebral spacer device having a radially thinning belleville spring 53 2001
6,673,113 Intervertebral spacer device having arch shaped spring elements 103 2001
6,645,249 Intervertebral spacer device having a multi-pronged domed spring 85 2001
2003/0069,642 Artificial intervertebral disc having a flexible wire mesh vertebral body contact element 48 2002
6,918,934 Artificial intervertebral disc having a slotted belleville washer force restoring element 33 2002
7,022,139 Artificial intervertebral disc having limited rotation using a captured ball and socket joint with a solid ball and retaining cap 31 2002
7,115,132 Static trials and related instruments and methods for use in implanting an artificial intervertebral disc 37 2002
6,706,068 Artificial disc replacements with natural kinematics 189 2003
 
WALDEMAR LINK GMBH & CO. KG (4)
4,997,432 Surgical instrument set 325 1989
5,122,130 Forceps for inserting intervertebral device 318 1990
5,401,269 Intervertebral disc endoprosthesis 510 1993
5,556,431 Intervertebral disc endoprosthesis 424 1994
 
HOWMEDICA OSTEONICS CORP. (3)
5,676,701 Low wear artificial spinal disc 457 1995
5,782,832 Spinal fusion implant and method of insertion thereof 376 1996
6,136,031 Artificial intervertebral disc 202 1998
 
MEDTRONIC SOFAMOR DANEK, INC. (3)
5,674,296 Human spinal disc prosthesis 606 1996
6,156,067 Human spinal disc prosthesis 417 1997
6,001,130 Human spinal disc prosthesis with hinges 484 1997
 
SDGI HOLDINGS, INC. (3)
5,425,773 Intervertebral disk arthroplasty device 396 1994
5,562,738 Intervertebral disk arthroplasty device 416 1995
6,019,792 Articulating spinal implant 393 1998
 
STRYKER SPINE (3)
6,582,466 Intervertebral disc prosthesis with reduced friction 172 2001
6,582,468 Intervertebral disc prosthesis with compressible body 167 2001
2003/0028,249 Intervertebral implant with toothed faces 90 2002
 
GORDON, MAYA, ROBERTS AND THOMAS, NUMBER 1, LLC (2)
6,228,118 Multiple axis intervertebral prosthesis 211 1998
6,146,421 Multiple axis intervertebral prosthesis 277 1999
 
WARSAW ORTHOPEDIC, INC. (2)
6,179,874 Articulating spinal implant 271 1999
2003/0060,886 Intervertebral spacers 48 2002
 
ZIMMER GMBH (2)
4,932,969 Joint endoprosthesis 318 1987
5,370,697 Artificial intervertebral disk member 472 1993
 
AXIOMED SPINE CORPORATION (1)
2003/0208,271 Artificial disc 60 2003
 
CHOICE SPINE, LP (1)
6,682,562 Intervertebral disc prosthesis 167 2003
 
CHUBU BEARING KABUSHIKIKAISHA (1)
5,899,941 Artificial intervertebral disk 249 1997
 
DEPUY ACROMED, INC. (1)
2003/0055,503 Alignment verification device and method of use 43 2001
 
DERR, BERN (1)
4,759,766 Intervertebral disc endoprosthesis 433 1987
 
DISC REPLACEMENT TECHNOLOGIES, INC. (1)
6,039,763 Articulating spinal disc prosthesis 312 1998
 
DYNAMIC SPINE, INC. (1)
5,827,328 Intervertebral prosthetic device 283 1996
 
FLEISCHAUER, MARIAN PERSONAL REPRESENTATIVE OF KENNETH E. FLEISCHAUER DEC'D (1)
4,605,417 Prosthetic joint 51 1984
 
HEALTH & RESEARCH SERVICES INC. (1)
4,759,769 Artificial spinal disc 594 1987
 
INFINITY ORTHOPEDICS COMPANY LIMITED (1)
2004/0010,316 Intervertebral device and method of use 144 2003
 
J.B.S. LIMITED COMPANY (1)
5,314,477 Prosthesis for intervertebral discs and instruments for implanting it 427 1992
 
MIDAS REX, L.P. (1)
5,236,460 Vertebral body prosthesis 296 1991
 
SCIENT'X SA (1)
6,517,580 Disk prosthesis for cervical vertebrae 193 2000
 
SOFAMOR DANEK HOLDINGS, INC. (1)
6,113,637 Artificial intervertebral joint permitting translational and rotational motion 337 1998
 
SPETZLER, ROBERT F. (1)
5,258,007 Powered surgical instrument 105 1992
 
SPINEFORE, INC. (1)
6,610,092 Intervertebral spacer device having a slotted partial circular domed arch strip spring 101 2001
 
SYNTHES USA, LLC (1)
5,507,816 Spinal vertebrae implants 275 1994
 
TECKENTRUP GMBH & CO. KG (1)
5,112,178 Spring washer for securing screws, nuts or the like 29 1991
 
THIRD MILLENNIUM ENGINEERING, LLC (1)
5,989,291 Intervertebral spacer device 206 1998
 
TORNIER SAS (1)
5,676,702 Elastic disc prosthesis 357 1995
 
X-PANTU-FLEX DRD LIMITED LIABILITY COMPANY (1)
6,375,682 Collapsible, rotatable and expandable spinal hydraulic prosthetic device 273 2001
 
ZIMMER SPINE, INC. (1)
6,368,350 Intervertebral disc prosthesis and method 307 1999
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (16)
4,309,777 Artificial intervertebral disc 598 1980
5,458,642 Synthetic intervertebral disc 341 1994
5,683,465 Artificial intervertebral disk prosthesis 370 1996
5,755,796 Prosthesis of the cervical intervertebralis disk 207 1996
5,895,428 Load bearing spinal joint implant 292 1996
5,865,846 Human spinal disc prosthesis 509 1997
5,893,889 Artificial disc 372 1997
5,888,226 Intervertebral prosthetic disc 408 1997
6,063,121 Vertebral body prosthesis 301 1998
2001/0016,773 Spinal disc 89 2000
2002/0084,562 Disk spring 6 2000
2003/0216,810 Artificial intervertebral disc utilizing a ball joint coupling 40 2002
2003/0233,097 Artificial disc replacement (ADR) distraction sleeves and cutting guides 64 2003
2003/0233,148 Modular components to improve the fit of artificial disc replacements 69 2003
2004/0030,390 Intradiscal component installation apparatus and methods 66 2003
2004/0002,759 Fusion and arthroplasty devices configured to receive bone growth promoting substances 57 2003

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
SPINECORE, INC. (1)
8,425,609 Artificial intervertebral disc having a bored semispherical bearing with a compression locking post and retaining caps 0 2008

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Apr 20, 2013
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 - 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