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US 2012/0059474 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 central ramp for an intervertebral implant, the central ramp comprising:
- a first expansion portion at a first end of the central ramp, the first expansion portion comprising a first side portion and a second side portion, the first side portion comprising overlapping ramped portions, and a second side portion comprising overlapping ramped portions;
- and
- an extension that extends from the first expansion portion to a second end of the central ramp.
1 more element
An apparatus comprising:
- a central ramp for an intervertebral implant, the central ramp comprising:
- a first expansion portion at a first end of the central ramp, the first expansion portion comprising a first side portion and a second side portion, the first side portion comprising overlapping ramped portions, and a second side portion comprising overlapping ramped portions;
- an extension that extends from the first expansion portion to a second end of the central ramp, the extension comprising an internally threaded opening at the second end;
- and
- a second expansion portion, the second expansion portion extending from the extension between the first end and the second end of the central ramp, wherein the second expansion portion comprises a first ramped surface and a second ramped surface, the second ramped surface is on an opposite side of the extension from the first ramped surface.
2 more elements
A method comprising:
- placing a central ramp for an intervertebral implant down an endoscopic tube and into an intervertebral disc space;
- and
- moving the central ramp in a first direction to place the intervertebral implant in an expanded position.
Dependencies are inferred from the claim text.