Patent ID: 8273125

Claim:
An intervertebral disk prosthesis comprising: a first assembly comprising a prosthetic plate having a fastener face provided with anchor members for anchoring in a vertebra; and a second assembly comprising a prosthetic plate having a fastener face provided with anchor members for anchoring in another vertebra, wherein the first assembly is rotatable coupled to the second assembly; wherein each anchor member comprises: a slot formed in a prosthetic plate and passing right through it; an anchor element mounted on said slot, said anchor element having at least a portion of size greater than the height of said slot; a means for forming a pivot axis XX′ for pivoting said anchor element relative to the prosthetic plate, whereby said anchor element can be moved from a rest, first position in which said anchor element does not project from the fastener face of the prosthetic plate, towards an active, second position in which at least a portion of said anchor element projects from the fastener face of the prosthetic plate; a first holder means for holding in said first position; and a second holder means for holding in said second position.