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US 9,351,848 B2Granted
Expandable fusion device and method of installation thereof
AssigneeGlobus Medical, Inc.
InventorsChad Glerum, Andrew Iott, Mark Adams
Life of this patent
Estimating the term…
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 an exemplary embodiment, the present invention provides an intervertebral implant. The intervertebral implant may be configured to transition from a collapsed configuration having a first height and a first width to an expanded configuration having a second height and a second width.
Claims19
An intervertebral implant comprising:
- an upper endplate comprising a first upper endplate portion and a second upper endplate portion;
- a lower endplate comprising a first lower endplate portion and a second lower endplate portion;
- a front sloped actuator configured to movingly engage a front end of the upper endplate and a front end of the lower endplate, the front sloped actuator comprising a front height actuator and a front width actuator;
- and
- a rear sloped actuator configured to movingly engage a rear end of the upper endplate and a rear end of the lower endplate, the rear sloped actuator comprising a rear height actuator and a rear width actuator;
- wherein the intervertebral implant is configured to transition from a collapsed configuration having a first height and a first width to an expanded configuration having a second height and a second width, non-symmetrically,
- wherein the second height is greater than the first height and the second width is greater than the first width, and
- wherein actuation of the front and rear width actuators transition the intervertebral implant from the first width to the second width and actuation of the front and rear height actuators transition the intervertebral implant from the first height to the second height such that the expansion of the implant from the first width to the second width is independent of the expansion of the implant from the first height to the second height.
5 more elements
An intervertebral implant comprising:
- an upper endplate comprising:
- a first upper endplate portion comprising a front ramped surface and a rear ramped surface;
- a second upper endplate portion comprising a front ramped surface and a rear ramped surface;
- and
- upper endplate pins connecting the first upper endplate portion and the second upper endplate portion;
- a lower endplate comprising:
- a first lower endplate portion comprising a front ramped surface and a rear ramped surface;
- a second lower endplate portion comprising a front ramped surface and a rear ramped surface;
- and
- lower endplate pins connecting the first lower endplate portion and the second lower endplate portion;
- a front sloped actuator configured to movingly engage the front ramped surface of the first upper endplate portion, the front ramped surface of the second upper endplate portion, the front ramped surface of the first lower endplate portion, and the front ramped surface of the second lower endplate portion, the front sloped actuator comprising a front height actuator and a front width actuator;
- and
- a rear sloped actuator configured to movingly engage the rear ramped surface of the first upper endplate portion, the front ramped surface of the second upper endplate portion, the rear ramped surface of the first lower endplate portion, and the rear ramped surface of the second lower endplate portion, the rear sloped actuator comprising a rear height actuator and a rear width actuator;
- wherein the intervertebral implant is configured to transition from a collapsed configuration having a first height and a first width to an expanded configuration having a second height and a second width,
- wherein actuation of the front and rear width actuators transition the intervertebral implant from the first width to the second width and actuation of the front and rear height actuators transition the intervertebral implant from the first height to the second height such that the expansion of the implant from the first width to the second width is independent of the expansion of the implant from the first height to the second height.
12 more elements
Dependencies are inferred from the claim text.