Patent ID: 9526628
Filing Date: 2016-12-27
CPC Classification: A61F

Claim Text:
1. A spinal fusion device, comprising: a first endplate configured for fitting within a disc space and engaging with a first vertebra, said first endplate has an anterior end and a posterior end; a second endplate configured for fitting within said disc space and engaging with a second vertebra, said second endplate has an anterior end and a posterior end; and a single spacer configured for sliding between said first and said second endplates in an anterior to posterior direction, causing said endplates to be further separated in a direction generally perpendicular to said sliding direction during the sliding of said single spacer between said first and said second endplates, wherein said spacer comprises: wherein each of said first and second surfaces of said spacer comprises a tapered or partial dovetail, wherein advancement of said spacer between said endplates distracts said endplates to a final position such that said tapered or partial dovetail on each of said first and second surfaces of said spacer is parallel to a mating dovetail on a corresponding endplate, thus allowing engagement of said tapered or partial dovetail with said mating dovetail on the corresponding endplate after endplates have been distracted to the final position, wherein said first endplate is locked to said spacer by a locking device comprising a spring-loaded plunger in said spacer and a corresponding recess in said first endplate and wherein said spring-loaded plunger protrudes from said first lateral side of said spacer.