08308801 is referenced by 12 patents and cites 117 patents.

Provided is an intervertebral disc prostheses for installation in a spinal column between superior and inferior vertebral bodies. A first intervertebral plate engages one or both of the inferior vertebral endplate and the inferior ring apophysis of the superior vertebral body. A second intervertebral plate engages one or both of the superior vertebral endplate and the superior ring apophysis of the inferior vertebral body. A biaxial rolling-contact core is located between the intervertebral plates. The core includes a convex upper surface and a convex lower surface. The upper surface is curved around a first axis and the lower surface is curved around a second axis that is rotated relative to the first axis. The core is capable of rolling translation relative to the first intervertebral plate along the upper surface and in a first direction, and rolling translation relative to the second intervertebral plate along the lower surface and in a second direction. A flexure constrains the biaxial rolling-contact core to a rolling translation without sliding in at least one of said first direction and said second direction.

Title
Spinal implant
Application Number
12/29046
Publication Number
8308801 (B2)
Application Date
February 11, 2008
Publication Date
November 13, 2012
Inventor
Anton E Bowden
Lindon
UT, US
Spencer P Magleby
Provo
UT, US
Larry L Howell
Orem
UT, US
Peter Halverson
Alpine
UT, US
Agent
Thorpe North & Western
Assignee
Brigham Young University
UT, US
IPC
A61F 2/44
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