Patent ID: 6019792
Filing Date: 2000-02-01
Classification: A61B,A61F

Abstract:
A spinal implant comprising:(a) a first element comprising first connection means for engaging a first vertebra, said first connection means comprising a first fusion chamber having at least one opening therein for facilitating bone ingrowth to fuse said first element to the first vertebra;(b) a second element comprising second connection means for engaging a second vertebra, said second connection means comprising a second fusion chamber having at least one opening therein for facilitating bone ingrowth to fuse said second element to the second vertebra; and(c) articulation means, coupling said first element to said second element, for allowing relative movement between said first element and said second element;wherein said first element comprises a first hemicylinder having a first articulation surface and a first radiused outer wall, and said second element comprises a second hemicylinder having a second articulation surface and a second radiused outer wall and wherein said first articulation surface abuts said second articulation surface to form said articulation means.