US 12,433,764 B2
Expandable fusion device for positioning between adjacent vertebral bodies
Erik Wagner, Austin, TX (US); and Michael Schular, Pittsburgh, PA (US)
Assigned to Tyler Fusion Technologies, LLC, Tyler, TX (US)
Filed by Tyler Fusion Technologies, LLC, Tyler, TX (US)
Filed on Sep. 26, 2023, as Appl. No. 18/372,778.
Application 18/372,778 is a continuation of application No. 17/836,741, filed on Jun. 9, 2022, granted, now 11,766,341.
Application 17/836,741 is a continuation of application No. 16/192,932, filed on Nov. 16, 2018, granted, now 11,369,484, issued on Jun. 28, 2022.
Application 16/192,932 is a continuation of application No. 15/351,943, filed on Nov. 15, 2016, abandoned.
Application 15/351,943 is a continuation of application No. 14/185,561, filed on Feb. 20, 2014, granted, now 9,492,288, issued on Nov. 15, 2016.
Claims priority of provisional application 61/766,982, filed on Feb. 20, 2013.
Prior Publication US 2024/0156615 A1, May 16, 2024
Int. Cl. A61F 2/44 (2006.01); A61F 2/46 (2006.01); A61F 2/28 (2006.01); A61F 2/30 (2006.01)
CPC A61F 2/447 (2013.01) [A61F 2/4455 (2013.01); A61F 2/4611 (2013.01); A61F 2002/2835 (2013.01); A61F 2002/30507 (2013.01); A61F 2002/30556 (2013.01); A61F 2002/30772 (2013.01); A61F 2002/30904 (2013.01); A61F 2/4465 (2013.01); A61F 2002/4627 (2013.01)] 23 Claims
OG exemplary drawing
 
1. An intervertebral implant system comprising:
an intervertebral implant comprising:
a first wedge;
a second wedge;
an upper body engaged with the first wedge and the second wedge;
a lower body engaged with the first wedge and the second wedge;
a cage housing the first and second wedges, wherein the cage comprises a first proximal opening, a second proximal opening, a first seat on a first side of the cage and a second seat on a second, opposing side of the cage; and
a drive gear operatively engaged with the first wedge via the first proximal opening to move the first and second wedges in opposite directions; and
an implant insertion device comprising:
a handle comprising:
a first extension and a second extension for positioning in the first and second seats of the cage;
at least one holder for releasably securing the intervertebral implant to the handle, wherein the at least one holder is spring loaded such that the at least one holder is biased to apply pressure to a surface of the intervertebral implant during use; and
an engaging member for operatively engaging the drive gear of the intervertebral implant.