Expandable fusion device and method of installation thereof
AssigneeGlobus Medical, Inc.
InventorsChad Glerum, Mark 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 body portion, a first endplate, and a second endplate, the first and second endplates capable of being moved in a direction away from the body portion into an expanded configuration or capable of being moved towards the body portion into an unexpanded configuration. The fusion device is capable of being deployed and installed in both configurations.
Claims20
A surgical method comprising:
- forming a cavity in a vertebral space;
- providing an intervertebral implant including:
- a first endplate and a second endplate;
- a first ramped insert engaged with the first endplate, the first ramped insert having a first ramped portion and a second ramped portion connected to the first ramped portion by a first bridge portion;
- a second ramped insert engaged with the first endplate, the second ramped insert having a first ramped portion and a second ramped portion connected to the first ramped portion by a second bridge portion;
- and
- a translation member positioned between the first and second endplate, the translation member comprising a first expansion portion and a second expansion portion connected together via a bridge section, the first expansion portion comprising first and second angled surfaces, the first angled surface engaging the first ramped insert, the second angled surface engaging the second ramped insert;
- inserting the intervertebral implant into the cavity;
- and
- moving the translation member to cause the first and second endplates to move towards or away from one another.
A surgical method comprising:
- forming a cavity in a vertebral space;
- providing an intervertebral implant including:
- a first endplate and a second endplate;
- a first ramped insert engaged with the first endplate, the first ramped insert having a first ramped portion and a second ramped portion connected to the first ramped portion by a first bridge portion;
- and
- a translation member positioned between the first endplate and the second endplate, the translation member comprising a first expansion portion and a second expansion portion connected together via a bridge section, the first expansion portion comprising first and second angled surfaces, and the second expansion portion comprising first and second angled surfaces, the first angled surfaces of the first and second expansion portions engaging the first ramped insert;
- inserting the intervertebral implant into the cavity;
- and
- moving the translation member to cause the first and second endplates to move towards or away from one another.
Dependencies are inferred from the claim text.