Expandable intervertebral spacer
AssigneeGlobus Medical, Inc.
InventorKurt Faulhaber
Life of this patent
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Abstract
A spacer for separating bones of a joint, the spacer includes a first endplate configured to engage a first bone of the joint; a second endplate configured to engage a second bone of the joint; and an actuation subassembly comprising a drive nut, a drive screw coupled to the drive nut, and a cam frame coupled to the drive screw, wherein the cam frame is disposed between the first endplate and the second endplate, wherein the cam frame comprises a proximal frame end, a distal frame end, and lateral frame sides, wherein cams disposed on the lateral frame sides selectively engage at least one of the first endplate or the second endplate.
Claims6
A method of separating bones of a joint, comprising:
- inserting a spacer between bones of the joint, the spacer including:
- first and second endplates;
- and
- an activation assembly including a cam frame having first and second sides and disposed between the first and second endplates, each side having at least one cam slot, the activation assembly further including a cam pin slidably received in the respective cam slot,
- translating the cam frame along a longitudinal axis of the spacer, translation of the cam frame causing the cam pins to slide within the cam slots which in turn causes one of the endplates to move apart from the other endplate to change a height of the spacer.
Dependencies are inferred from the claim text.