Patent ID: 7141070

Claim:
An intervertebral spacer device comprising: first and second plates having plate surfaces, said first and second plates being spaced from one another with inner ones of said plate surfaces opposing one another and external ones of said plate surfaces facing in opposite directions; at least one domed arch strip spring disposed between the inner surfaces of said first and second plates for counteracting compressive loads applied to the external surfaces of said first and second plates; said at least one domed arch strip spring having lateral ends that are coupled with the inner surface of said first plate and a curvate central portion that is maintained adjacent the inner surface of said second plate, wherein the lateral ends of said at least one domed arch strip spring are secured to said first plate; and a post structure projecting from the inner surface of said second plate, said post structure being coupled with the curvate central portion of said at least one domed arch strip spring.