Patent ID: 8409291
Filing Date: 2013-04-02
Classification: A61F

Abstract:
1. A spinal implant for insertion in a disc space between adjacent vertebrae, comprising: a first frame member moveably coupled to a second frame member; the first frame member comprising: a first longitudinal axis extending from a first proximal end section to a first distal end section, with a first intermediate section disposed therebetween; a first outboard face facing generally opposite the second frame member; inferior and superior faces disposed on opposing sides of the first outboard face and facing in generally opposite directions; the superior face having a first array of anti-backout protrusions extending upward away from the implant; the inferior face having a second array of anti-backout protrusions extending downward away from the implant; the second frame member comprising: a second longitudinal axis extending from a second proximal end section to a second distal end section, with a second intermediate section disposed therebetween; a second outboard face facing generally opposite the first frame member; inferior and superior faces disposed on opposing sides of the second outboard face and facing in generally opposite directions; the superior face of the second frame member having a third array of anti-backout protrusions extending upward away from the implant; a first rigid link pivotally interconnecting the first and second frame members; the first link mounted to the first frame member for rotation relative thereto about a first vertical pivot axis; a second link movably interconnecting the first and second frame members and longitudinally spaced from the first link; wherein the implant is laterally expandable in an expansion direction normal to the first pivot axis from a collapsed configuration to a deployed configuration; wherein, in the collapsed configuration: the first and second longitudinal axes are disposed relatively closer together; the first and second arrays of anti-backout protrusions of the first frame member are a first distance apart; wherein, in the deployed configuration: the first and second longitudinal axes are disposed relatively farther apart; the first and second arrays of anti-backout protrusions of the first frame member are the first distance apart, wherein the first link is mounted to the second frame member for rotation relative thereto about a second pivot axis; a third link pivotally mounted to first and second proximal flanges of the first and second frame members, respectively, for rotation relative to the first frame member about the first pivot axis and for rotation relative to the second frame member about the second pivot axis; the third link vertically spaced from the first link with a gap formed therebetween.