Stabilized 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, and comprising a ramped surface; a tissue engaging subassembly disposed in a compartment of the first endplate; a second endplate configured to engage a second bone of the joint; and a frame subassembly that extends between the first endplate and the second endplate. The frame subassembly comprises a drive nut, a drive shaft coupled to the drive nut, a ramped carriage coupled to the drive shaft, wherein the ramped carriage comprises a ramped surface operable to engage the ramped surface of the first endplate, and an actuation bar coupled to the drive nut comprising a plate operable to engage the tissue engaging subassembly.
Claims17
A spacer for separating bones of a joint, the spacer comprising:
- a first endplate configured to engage a first bone of the joint;
- at least one spike;
- a second endplate configured to engage a second bone of the joint;
- and
- a frame subassembly disposed between the first endplate and the second endplate, and including:
- a drive shaft operable to vertically move the first endplate relative to the second endplate upon rotation;
- an actuation bar coupled to and operable to move the spike upon translation;
- a drive nut adapted to translate the actuation bar upon rotation so as to extend the spike out of the first endplate and pierce the first bone in engagement with the first endplate
- wherein the spike is part of a spike assembly and the spike assembly is pivotally coupled to the first endplate.
A spacer for separating bones of a joint, the spacer comprising:
- a first endplate configured to engage a first bone of the joint;
- first and second spikes;
- a second endplate configured to engage a second bone of the joint;
- and
- a frame subassembly disposed between the first endplate and the second endplate, and including:
- first and second actuation bars disposed in parallel to each other and operable to vertically move the respective spike upon translation;
- a drive nut adapted to simultaneously translate the first and second actuation bars upon rotation so as to simultaneously extend the first and second spikes out of the first endplate and pierce the first bone in engagement with the first endplate,
- wherein the spike is part of a spike assembly and the spike assembly is pivotally coupled to the first endplate.
Dependencies are inferred from the claim text.