US 12,403,017 B2
Expandable footprint implant
Jason Gray, East Greenville, PA (US); and David Feigenbaum, Philadelphia, PA (US)
Assigned to Globus Medical, Inc., Audubon, PA (US)
Filed by GLOBUS MEDICAL, INC., Audubon, PA (US)
Filed on Mar. 21, 2023, as Appl. No. 18/124,095.
Prior Publication US 2024/0315853 A1, Sep. 26, 2024
Int. Cl. A61F 2/44 (2006.01); A61F 2/30 (2006.01); A61F 2/46 (2006.01)
CPC A61F 2/447 (2013.01) [A61F 2/4455 (2013.01); A61F 2002/30537 (2013.01); A61F 2002/3055 (2013.01); A61F 2002/30556 (2013.01); A61F 2002/30579 (2013.01); A61F 2002/449 (2013.01); A61F 2002/4627 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An expandable intervertebral implant comprising:
a central drive assembly including an externally threaded central drive screw positioned through a front plate at a front end of the implant, a central actuator comprising inner threads threadedly engaged to the external threads of the central drive screw, and an externally threaded sleeve positioned through a rear plate and threadedly coupled at one end thereof to the inner threads of the central actuator and threadedly engaged at an opposite end thereof with a drive nut at a rear end of the implant; and
left and right side assemblies each including upper and lower endplates, a side actuator, and a front ramp,
wherein the side actuator and the front ramp are slidably engaged with the upper and lower endplates,
wherein the rear plate includes a pair of female horizontal ramps defined into top and bottom surfaces of the rear plate, and each side actuator includes a pair of horizontal male ramps configured to interface with the respective female horizontal ramps of the rear plate;
wherein the front plate includes a pair of female horizontal ramps defined into top and bottom surfaces of the front plate, and each front ramp includes a pair of male horizontal ramps configured to interface with the respective female horizontal ramps of the front plate,
wherein the left and right side assemblies have a laterally collapsed configuration having a first width and a laterally expanded configuration having a second width larger than the first width, and wherein the left and right side assemblies have a vertically collapsed configuration having a first height and a vertically expanded configuration having a second height larger than the first height, and wherein the drive nut and the drive screw are independently rotatable such that rotation of the drive nut expands the implant in width and rotation of the drive screw expands the implant in height.