US Patent Application No: 2006/0149,378

Number of patents in Portfolio can not be more than 2000

Articulating spinal disc prosthetic




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A spinal disc prosthetic for replacement of cervical and/or lumber discs, that in each case allows a limited degree of rotational articulation, as well as durability and resistance to fatigue. The prosthetic is formed with three primary layers, including a superior (upper) plate, inferior (lower) plate, and intermediate layer, in a sandwich. The superior plate member is adapted to be secured on one side to an upper vertebra in a spinal column, and has a formed concave side exposed downwardly. The inferior plate member is adapted to be secured on one side to a lower vertebra in the spinal column, and has a substantially flat side exposed upwardly. The intermediate member is sandwiched between the superior and inferior plate members with conforming sides, and includes a short cylindrical post protruding downward into a circular recess in the inferior plate member to center it and to maintain a predetermined spacing there between. Two lateral pins on the intermediate member fit into two corresponding slots on the inferior member as guides and allow a degree of rotational freedom, and the post includes snap-in spring fingers that lock into the recess of the inferior member to prevent withdrawal.

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Inventor Name Address # of filed Patents Total Citations
Aflatoon, Kamran Newport Beach, CA 19 62
Chase, Brad Ellicott City, MD 2 29

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Patent Info (Count) # Cites Year
8,858,635 Intervertebral disc prosthesis 0 2005
7,695,516 Intervertebral disc prosthesis 19 2005
7,842,088 Intervertebral disc prosthesis 15 2006
8,465,546 Intervertebral disc prosthesis insertion assemblies 2 2007
8,343,219 Intersomatic cage, intervertebral prosthesis, anchoring device and implantation instruments 8 2008
8,257,439 Intervertebral disc prosthesis 5 2009
* 8,002,835 Intervertebral disc prosthesis 11 2009
8,267,999 Intervertebral disc prosthesis 5 2009
8,439,931 Instrumentation and methods for inserting an intervertebral disc prosthesis 5 2009
* 7,815,681 Orthopedic support locating or centering feature and method 17 2006
8,747,474 Orthopedic support locating or centering feature and method 0 2010
8,882,839 Intervertebral implant 0 2013
Infinity Orthopedics Ltd. (1)
* 7,618,459 Universal spinal disc implant system 12 2006
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 1 2007
* Cited By Examiner