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.
Claims12
A spacer for separating bones of a joint, the spacer comprising:
- 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 frame coupled to the drive screw, wherein the frame is disposed between the first endplate and the second endplate, wherein the frame comprises a proximal end, a distal end, and lateral sides, and the frame comprise slots formed in the lateral sides of the frame and pins engage the slots, wherein rotation of the drive nut translates the frame, the frame engages the pins to selectively engage at least one of the first endplate or the second endplate.
A spacer for separating bones of a joint, the spacer comprising:
- a first endplate configured to engage a first bone of the joint;
- a second endplate configured to engage a second bone of the joint;
- an actuation subassembly comprising:
- a drive nut comprising a head portion and an extension from the head portion, wherein the extension is secured in a cutout formed by the first endplate and the second endplate;
- a drive screw comprising a threaded end that is threadingly coupled to a through bore of the drive nut;
- a frame comprising a proximal frame end, a distal frame end, and lateral sides, wherein slots are formed in the lateral frame sides, wherein the slots are at an angle with respect to a longitudinal axis of the spacer, wherein the drive screw is retained in an opening in the proximal frame end;
- and
- a plurality of pins that engage the slots and engage at least one of the first endplate and/or the second endplate.
Dependencies are inferred from the claim text.