Patent ID: 9241808
Filing Date: 2016-01-26
CPC Classification: A61F,B33Y

Claim Text:
1. A device comprising: a first disc portion being shaped and sized to correspond generally to a first intervertebral disc section including a pivot point positioned on a first surface opposite a second surface of the first disc portion and a first lattice structure with a negative Poisson's ratio; and a second disc portion being shaped and sized to correspond generally to a second intervertebral disc section including a pivot point receptacle positioned on a third surface opposite a fourth surface of the second disc portion and a second lattice structure with a negative Poisson's ratio; wherein the first disc portion is positioned relative to the second disc portion with the pivot point of the first disc portion within the pivot point receptacle of the second disc portion and the first surface of the first disc portion adjacent to the third surface of the second disc portion; wherein the first disc portion includes an endplate positioned adjacent and substantially parallel with the second surface of the first disc portion, and wherein the first disc portion and the second disc portion are configured to exhibit an auxetic behavior when subject to compression approximately perpendicular to a surface plane parallel to at least one of the first surface, the second surface, the third surface and the fourth surface.