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US 12,653,692 B2Granted
Expandable interbody fusions devices
AssigneeGlobus Medical, Inc.
InventorsMark Weiman, Myles Sullivan, Tyler Hessler, Chad Glerum
Life of this patent
Estimating the term…
Abstract
Expandable fusion devices, systems, instruments, and methods thereof. The expandable fusion implant may include an upper endplate assembly and a lower endplate assembly. The upper and lower endplate assemblies may be configured to expand in width. A rotatable actuator may move one or more driving ramps, which mate with an upper ramp and a lower ramp, respectively. The actuator may cause independent movement of one or more of the driving ramps, thereby causing an expansion in height of the upper and lower endplate assemblies.
Claims15
An expandable implant comprising:
- a plurality of upper endplates including a first plurality of links configured to articulate into a generally polygonal shape;
- a plurality of lower endplates including a second plurality of links configured to articulate into the generally polygonal shape;
- an actuator assembly including a rotatable actuator having a shaft;
- a plurality of driving ramps including a front ramp and a rear ramp positioned along the shaft of the actuator;
- an upper ramp connected to the plurality of upper endplates and engaged with the plurality of driving ramps;
- and
- a lower ramp connected to the plurality of lower endplates and engaged with the plurality of driving ramps,
- wherein the plurality of upper and lower endplates are configured to expand in width,
- rotation of the actuator causes movement of one or more of the driving ramps, thereby causing an expansion in height of the upper and lower endplates, and the plurality of upper and lower endplates are configured to passively pivot about a longitudinal axis of the implant.
6 more elements
An expandable implant comprising:
- a plurality of upper endplates including a first plurality of links configured to articulate into a generally polygonal shape;
- a plurality of lower endplates including a second plurality of links configured to articulate into the generally polygonal shape;
- an actuator assembly including a rotatable actuator having a shaft;
- a plurality of driving ramps including a front ramp and a rear ramp positioned along the shaft of the actuator;
- an upper ramp connected to the plurality of upper endplates and engaged with the plurality of driving ramps;
- and
- a lower ramp connected to the plurality of lower endplates and engaged with the plurality of driving ramps,
- wherein the plurality of upper and lower endplates are configured to expand in width, rotation of the actuator causes movement of one or more of the driving ramps, thereby causing an expansion in height of the upper and lower endplates, the front ramp and the rear ramp slidably interface with the upper ramp and lower ramp, and the plurality of upper and lower endplates are configured to passively pivot about a longitudinal axis of the implant.
5 more elements
An expandable implant comprising:
- a plurality of upper endplates including a first plurality of links configured to articulate into a generally polygonal shape;
- a plurality of lower endplates including a second plurality of links configured to articulate into the generally polygonal shape;
- an actuator assembly including a rotatable actuator having a shaft;
- a plurality of driving ramps including a front ramp and a rear ramp positioned along the shaft of the actuator;
- an upper ramp connected to the plurality of upper endplates and engaged with the plurality of driving ramps;
- and
- a lower ramp connected to the plurality of lower endplates and engaged with the plurality of driving ramps,
- wherein the plurality of upper and lower endplates are configured to expand in width, rotation of the actuator causes movement of one or more of the driving ramps, thereby causing an expansion in height of the upper and lower endplates, the upper ramp includes a rounded portion along an upper surface configured to mate with the upper endplate and a rounded portion along a lower surface on the lower ramp configured to mate with the lower endplate, each rounded portion is configured to be received in a mating rounded recess defined within the upper and lower endplates, and the plurality of upper and lower endplates are configured to passively pivot about a longitudinal axis of the implant.
5 more elements
Dependencies are inferred from the claim text.