Expandable intervertebral interbody implants
AssigneeGlobus Medical, Inc.
InventorsMunish Gupta, Colm Mclaughlin, Matthew Andraka
Life of this patent
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Abstract
Expandable fusion devices, systems, instruments, and methods thereof. The expandable fusion implant may include an upper endplate and a lower endplate configured to engage adjacent vertebrae, an actuation gear configured to adjust a height of the upper endplate, an interface collar configured to attach to an inserter instrument at multiple orientations for a desired surgical approach, and an expansion and orientation lock configured to lock the orientation of the interface collar and lock the height of the upper endplate. The expandable fusion device is attachable to the inserter instrument to secure the interface collar and disengage the lock from the actuation gear to permit expansion of the upper endplate.
Claims16
A method for stabilizing adjacent vertebral bodies comprising the steps of:
- providing an expandable implant comprising:
- an upper endplate and a lower endplate configured to engage adjacent vertebrae;
- an actuation gear configured to adjust a height of the upper endplate, the actuation gear is coupled to the lower endplate and engaged with the upper endplate;
- an interface collar configured to attach to an inserter instrument at multiple orientations for a desired surgical approach, the interface collar includes a plurality of angled protrusions;
- and
- an expansion and orientation lock configured to lock an orientation of the multiple orientations of the interface collar and lock the height of the upper endplate, wherein the lock is retained in the lower endplate, and the lock includes a tapered outer surface with a plurality of cuts defined therein configured to interface with the plurality of angled protrusions in the interface collar, and
- positioning the expandable implant between adjacent vertebral bodies.
A method for stabilizing adjacent vertebral bodies comprising the steps of:
- providing an expandable implant comprising:
- an expandable implant comprising an upper endplate configured to engage a superior vertebra, an actuation gear configured to adjust a height of the upper endplate, an interface collar configured to rotate about a center axis of the implant for a desired surgical approach, an expansion and orientation lock configured to lock an orientation of the interface collar and lock the height of the upper endplate, and a lower endplate configured to engage an inferior vertebra;
- and
- providing an inserter instrument having:
- an attachment assembly configured to engage the interface collar and an expansion assembly configured to expand the implant, wherein the inserter instrument is attachable to the interface collar in an open position, a half position, and a full position to control a location of the interface collar and expansion of the implant, wherein in the open position, the inserter instrument is attached to the implant such that the attachment fork is not engaged with the interface collar, thereby allowing rotation of the interface collar and the lock prevents expansion of the upper endplate, and
- positioning the expandable implant between adjacent vertebral bodies with the inserter instrument.
Dependencies are inferred from the claim text.