1
Stubstad James A, Urbaniak James R, Kahn Paul: Prosthesis for spinal repair. Cutter Laboratories, Owen Wickersham & Erickson, February 25, 1975: US3867728 (1027 worldwide citation)

A shaped article comprising at least a core element having generally flat top and bottom surfaces, the core element being made of elastic polymer and preferably reinforced. Presently preferred forms of the article are those in which the core element has a covering element secured to one or, in some ...


2
Vincent Bryan, Alex Kunzler: Human spinal disc prosthesis. Spinal Dynamics Corporation, Gardner Carton & Douglas, October 7, 1997: US05674296 (835 worldwide citation)

The invention relates to a spinal disc endoprosthesis. The endoprosthesis has a resilient body formed of one or more materials which may vary in stiffness from a relatively stiff exterior annular gasket portion to a relatively supple central nucleus portion. Concaval-convex elements at least partly ...


3
Thomas P Hedman, John P Kostuik, Geoffrey R Fernie, Brian E Maki: Artificial spinal disc. Health & Research Services, Rogers Bereskin & Parr, July 26, 1988: US04759769 (827 worldwide citation)

An artificial disc for a human spine. The disc has upper and lower members hinged together at their rear portions and biased apart at their fronts by stiff coil springs. Rear stop surfaces limit the opening movement of the members. Vertically projecting tabs at the front and side of each member are ...


4
Gary K Michelson: Artificial spinal fusion implants. Sofamor Danek Properties, Woodard Emhardt Naughton Moriarty & McNett, June 4, 1996: US05522899 (816 worldwide citation)

A spinal implant is disclosed which when placed within the spinal disc space stabilizes that spinal segment and materially participates in, and is incorporated in, the ensuing fusion.


5
Steffee Arthur D: Artificial disc. AcroMed Corporation, Tarolli Sundheim & Covell, December 10, 1991: US05071437 (765 worldwide citation)

A spinal disc prosthesis comprises an upper flat rigid plate, a lower flat rigid plate, and a flat elastomeric core interposed between said plates and adhered to the plates. A plurality of spaced-apart protuberances extend outwardly from the exposed faces of the plates for engagement with vertebrae ...


6
Vincent Bryan, Alex Kunzler: Human spinal disc prosthesis. Hill & Simpson, February 2, 1999: US05865846 (726 worldwide citation)

The invention relates to a spinal disc endoprosthesis. The endoprosthesis has a resilient body formed of one or more materials which may vary in stiffness from a relatively stiff exterior annular gasket portion to a relatively supple central nucleus portion. Concaval-convex elements at least partly ...


7
Hansen A Yuan, Chih I Lin, James A Davidson, Laura C Small, Thomas A Carls: Low wear artificial spinal disc. Smith & Nephew, Pravel Hewitt Kimball & Krieger, October 14, 1997: US05676701 (723 worldwide citation)

An artificial spinal disc for surgical placement between adjacent vertebrae including a first component for attaching to a first vertebrae, the first component having a concave recess, with the concave contoured surface having a circumference of 360.degree.. A second component for attaching to a sec ...


8
Vincent Bryan, Alex Kunzler: Human spinal disc prosthesis with hinges. Hill & Simpson, December 14, 1999: US06001130 (696 worldwide citation)

The invention relates to a spinal disc endoprosthesis. The endoprosthesis has a resilient body formed of one or more materials which may vary in stiffness from a relatively stiff exterior annular gasket portion to a relatively supple central nucleus portion. Concaval-convex elements at least partly ...


9
Arthur D Steffee: Method for using spinal implants. AcroMed Corporation, Tarolli Sundheim & Covell, August 22, 1995: US05443514 (656 worldwide citation)

A method of fusing together the adjacent vertebrae using the spinal implant includes removing at least a portion of the spinal disc between the adjacent vertebrae. The spinal implant is inserted between the adjacent vertebrae with the first and second parallel side surfaces facing the adjacent verte ...


10
Charles D Ray, Eugene A Dickhudt: Method for surgical implantation of a prosthetic spinal disc nucleus. RayMedica, Kinney & Lange, October 8, 1996: US05562736 (655 worldwide citation)

A method for surgically implanting a prosthetic spinal disc nucleus body into a human spinal disc space is disclosed. The spinal disc space contains adjacent vertebrae and an anulus having a posterior side. The method includes cutting a flap through the anulus in the disc space to create an opening. ...