Patent ID: 7892285

Claim:
A disc replacement comprising: a superior end plate; an inferior end plate; and a leaf spring having an intermediate unitary floating portion, a pair of first and second superior legs each connected between the unitary floating portion and the superior plate, and a pair of first and second inferior legs each connected between the unitary floating portion and the inferior plate; wherein the intermediate unitary floating portion of the leaf spring is spaced apart from both the superior end plate and the inferior end plate, the unitary floating portion attached to the superior and inferior end plates via the superior and inferior legs, respectively; wherein the first and second superior legs each include a 180 degree loop and wherein the first and second inferior legs each include a 180 degree loop, wherein the 180 degree loops are spaced apart from the superior and inferior end plates, wherein the inferior legs are separated by 180degrees and the superior extended legs are separated by 180 degrees.