US Patent No: 6,309,421

Number of patents in Portfolio can not be more than 2000

Rotating, locking intervertebral disk stabilizer and applicator

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

A middle expanded, removable disk implant for stabilizing adjacent vertebrae. The implant is substantially rectangular in cross-sectional shape with a minimal height and a width greater than the height. The implant is detachably mounted to an applicator for insertion into the anatomical region between two adjacent vertebrae from which a portion of the intervertebral disk has been removed. Once inserted, the implant is positioned by anterior-posterior movement in the disk space to the position in which both the expanded, larger width middle portion and the smaller diameter end portions of the implant engage the bodies of the adjacent vertebrae and the implant is then rotated to bring the sides of the rectangularly-shaped implant defining the width of the implant, with its larger dimension, into engagement with the bodies of the adjacent vertebrae. A lock is then secured to the implant to prevent further rotation thereof.

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First Claim

Related Publications

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Patent Owner(s)

Patent OwnerAddressTotal Patents
PERUMALA CORPORATIONBROWNSVILLE, TX17

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pisharodi, Madhavan Brownsville, TX 35 2741

Cited Art

Patent Info (Count) # Cites Year
 
PERUMALA CORPORATION (2)
5,658,336 Rotating, locking, middle-expanded intervertebral disk stabilizer 105 1995
5,893,890 Rotating, locking intervertebral disk stabilizer and applicator 102 1997
 
ALPHATEC LTD. (1)
5,290,312 Artificial vertebral body 289 1991
 
BRANTIGAN, W. JOHN DR.( CREIGHTON UNIVERSITY SCHOOL OF MEDICINE) (1)
5,425,772 Prosthetic implant for intervertebral spinal fusion 452 1993
 
DEPUY ACROMED, INC. (1)
5,716,415 Spinal implant 301 1996
 
DEPUY MOTECH ACROMED, INC. (1)
6,159,211 Stackable cage system for corpectomy/vertebrectomy 137 1998
 
ZIMMER DENTAL, INC. (1)
5,306,309 Spinal disk implant and implantation kit 554 1992
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (3)
4,349,921 Intervertebral disc prosthesis 760 1980
5,665,122 Expandable intervertebral cage and surgical method 388 1995
6,080,158 Intervertebral fusion device 126 1999

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
KYPHON SARL (14)
7,497,859 Tools for implanting an artificial vertebral disk 7 2003
7,273,496 Artificial vertebral disk replacement implant with crossbar spacer and method 43 2003
7,083,649 Artificial vertebral disk replacement implant with translating pivot point 84 2003
6,966,929 Artificial vertebral disk replacement implant with a spacer 76 2003
7,510,567 Spinal implants, insertion instruments, and methods of use 4 2004
7,452,379 Artificial vertebral disk replacement implant with crossbar spacer and method 1 2004
7,481,840 Multi-piece artificial spinal disk replacement device with selectably positioning articulating element 23 2004
7,691,146 Method of laterally inserting an artificial vertebral disk replacement implant with curved spacer 12 2004
7,670,377 Laterally insertable artifical vertebral disk replacement implant with curved spacer 12 2004
7,520,899 Laterally insertable artificial vertebral disk replacement implant with crossbar spacer 14 2004
7,503,935 Method of laterally inserting an artificial vertebral disk replacement with translating pivot point 22 2004
7,320,707 Method of laterally inserting an artificial vertebral disk replacement implant with crossbar spacer 40 2004
7,481,839 Bioresorbable interspinous process implant for use with intervertebral disk remediation or replacement implants and procedures 6 2004
7,575,600 Artificial vertebral disk replacement implant with translating articulation contact surface and method 17 2004
 
WARSAW ORTHOPEDIC, INC. (8)
8,083,774 Percutaneous vertebral fusion system 1 2003
7,833,249 Formable orthopedic fixation system 0 2004
7,549,993 Constant lift cam spreader 0 2004
7,655,042 Expandable intervertebral spacers 4 2004
7,780,705 Formed in place fixation system with thermal acceleration 0 2005
7,727,262 Formed in place fixation system with thermal acceleration 1 2005
7,771,476 Curable orthopedic implant devices configured to harden after placement in vivo by application of a cure-initiating energy before insertion 13 2006
7,993,403 Expandable intervertebral spacers 0 2010
 
ORTHO DEVELOPMENT CORPORATION (5)
6,579,318 Intervertebral spacer 103 2000
6,852,127 Method of implanting an intervertebral spacer 11 2002
D501555 Implant 23 2003
D494274 Implant 25 2003
D493225 Implant 27 2003
 
SPINE SOLUTIONS, INC. (5)
7,204,852 Intervertebral implant, insertion tool and method of inserting same 46 2002
7,491,204 Instruments and method for preparing an intervertebral space for receiving an artificial disc implant 12 2003
7,803,162 Instruments and method for inserting an intervertebral implant 8 2003
8,105,381 Intervertebral implant, insertion tool and method of inserting same 0 2007
8,349,017 Instruments and method for inserting an intervertebral implant 0 2010
 
CONCEPT MATRIX, LLC (4)
8,353,962 Dual composition vertebral defect device 0 2007
7,871,441 Cervical fixation device 5 2007
8,137,402 Vertebral defect device 0 2008
8,167,886 Insertion tool for a vertebral defect device 0 2009
 
SDGI HOLDINGS, INC. (3)
6,395,031 Expandable intervertebral spacers 73 2000
6,833,006 Expandable intervertebral spacers 35 2002
8,337,556 Curable media for implantable medical device 0 2005
 
DEPUY SYNTHES PRODUCTS, LLC (2)
8,419,742 Instruments and method for preparing an intervertebral space for receiving an artificial disc implant 0 2007
8,403,988 Minimally invasive intervertebral staple distraction devices 0 2009
 
THOMPSON MIS, LLC (2)
7,824,427 Minimally invasive interbody device 2 2007
7,846,210 Minimally invasive interbody device assembly 8 2007
 
ATLAS SPINE, INC. (1)
8,262,666 Implantable distractor 0 2007
 
BOSTON SCIENTIFIC SCIMED, INC. (1)
7,513,900 Apparatus and methods for reducing compression bone fractures using high strength ribbed members 0 2003
 
CONNER, E. SCOTT (1)
7,963,991 Spinal implants and methods of providing dynamic stability to the spine 1 2007
 
PERUMALA CORPORATION (1)
7,879,095 Method of inserting, rotating and releasing a spring-loaded artificial disk 3 2004
 
SYNTHES GMBH (1)
8,425,603 Orthopedic implant with flexible keel 0 2009
 
SYNTHES USA, LLC (1)
8,337,500 Drilling/milling guide and keel cut preparation system 0 2007
 
ZIMMER SPINE, INC. (1)
7,637,952 Instrumentation and procedure for implanting spinal implant devices 9 2003
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
8,241,362 Lumbar disc replacement implant for posterior implantation with dynamic spinal stabilization device and method 0 2007

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Apr 30, 2013
Fee Large entity fee small entity fee micro entity fee
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