Patent ID: 9655743
Date: 2017-05-23
CPC Classifications: A61B,A61F,Y10S

Claim:
1. An expandable interbody fusion device for implantation into the intradiscal space between opposing vertebral bodies in a spine, comprising: an elongate first element having an upper surface and an opposite lower surface, said lower surface including a beveled surface thereon; an elongate second element aligned in the axial direction with said first element, said second element including opposing spaced apart sidewalls defining therebetween an interior cavity, at least a portion of said first element being received within said interior cavity, said first element being movable in an expansion direction away from said second element; and an elongate expansion member movable within said cavity in a first axial direction in alignment axially with said first element and said second element, said expansion member including thereon first and second axially spaced beveled surfaces, said first and second beveled surfaces being movable together in said first axial direction upon movement of said expansion member in said first axial direction, said first beveled surface defining a lifting surface operable upon movement of said expansion member in the first axial direction to engage the beveled surface on said lower surface of said first element to move said first element and said second element relatively apart in an expansion direction generally transverse to said first axial direction.