Patent ID: 9539103
Date: 2017-01-10
CPC Classifications: A61F

Claim:
1. An intervertebral implant comprising: an upper endplate; a lower endplate; a frame; a moveable actuator at least partially received in the frame and positioned between the upper endplate and the lower endplate; an actuator screw having a groove, the actuator screw extends through the moveable actuator, wherein rotation of the actuator screw in a first direction causes the moveable actuator to translate, thereby causing the implant to change from an unexpanded configuration to an expanded configuration; and a friction sleeve positioned in the groove and coupled to the actuator screw which prevents unwanted rotation of the actuator screw, wherein the friction sleeve includes a protrusion extending along an inner surface of the friction sleeve, and the protrusion is sized and dimensioned to be received within a corresponding recess in the groove of the actuator screw.