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US 2012/0059475 A1Published application
Expandable Fusion Device and Method of Installation Thereof
AssigneeGlobus Medical, Inc.
InventorMark Weiman
Life of this patent
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Abstract
The present invention provides an expandable fusion device capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. In one embodiment, the fusion device includes a central ramp, a first endplate, and a second endplate, the central ramp capable of being moved in a first direction to move the first and second endplates outwardly and into an expanded configuration. The fusion device is capable of being deployed down an endoscopic tube.
Claims20
An apparatus comprising:
- a ramped endplate for an intervertebral implant having a first end and a second end, the ramped endplate comprising:
- an upper surface;
- a lower surface;
- a first side portion extending from the lower surface and connecting the first end and the second end, the first side portion comprising a first ramped surface proximate the first end, and a second ramped surface proximate the second end;
- and
- a second side portion extending from the lower surface and connecting the first end and the second end, the second side portion comprising a first ramped surface proximate the first end, and a second ramped surface proximate the second end.
3 more elements
An apparatus comprising:
- a ramped endplate for an intervertebral implant, the ramped endplate having a first end and a second end, the first end being wider than the second end, the ramped endplate comprising:
- an upper surface comprising texturing for gripping a vertebral body;
- a lower surface;
- a first side portion extending from the lower surface and connecting the first end and the second end, the first side portion comprising a first ramped surface proximate the first end and facing the first end, and a second ramped surface proximate the second end and facing the second end;
- and
- a second side portion extending from the lower surface and connecting the first end and the second end, the second side portion comprising a first ramped surface proximate the first end and facing the first end, a second ramped surface proximate the second end and facing the second end, and a central ramped surface between the first ramped surface and the second ramped surface and facing the second end;
- wherein at least a portion of the lower surface of the ramped endplate between the first side portion and the second side portion is curved concavely
- wherein the ramped endplate has a through opening that extends from the upper surface through the lower surface.
5 more elements
A method comprising:
- placing a ramped endplate for an intervertebral implant down an endoscopic tube and into an intervertebral disc space;
- and
- moving the ramped endplate into an expanded position in engagement with a vertebral body.
Dependencies are inferred from the claim text.