Patent ID: 9179946
Filing Date: 2015-11-10
Classification: A61B,A61F

Abstract:
1. An interbody graft and a vertebral plate assembly adapted to be permanently implanted partially within an intervertebral space between superior and inferior vertebral bodies each having an anterior cortex face, and a vertebral endplate, the vertebral plate assembly comprising: an anterior vertebral plate portion; a posteriorly positioned insert portion having a posterior surface configured to fit within the intervertebral space and that abuts against an anterior surface of the interbody graft, and the anterior vertebral plate portion having an anterior surface that extends superiorly and inferiorly past a height of the insert portion; a laterally traversing hinge member that defines superior and inferior sections of the vertebral plate assembly, including a superior posterior surface and an inferior posterior surface of the insert portion, wherein the hinge member is configured to allow after implantation limited flexion of the superior posterior surface and the inferior posterior surface of the insert portion towards each other to a flexed position to create a minimum angle between the superior posterior surface and the inferior posterior surface, wherein the minimum angle is between 165-175 degrees; a plurality of anchor members coupled to the anterior surface of the anterior vertebral plate portion wherein the plurality of anchor members are configured to abut against the anterior cortex faces of the superior and inferior vertebral bodies when the vertebral plate assembly is implanted; and channels individually traversing through the plurality of anchor members and adapted to receive means for securing the vertebral plate assembly to the superior and inferior vertebral bodies, wherein the channels traverse at angles aligned to corners at junctions between the anterior cortex face and vertebral endplate of each of the superior and inferior vertebral bodies when the plate assembly is implanted.