Expandable fusion device and method of installation thereof
AssigneeGlobus Medical, Inc.
InventorsChad Glerum, Andrew Iott, Mark Adams, Daniel Davenport, Mark Weiman
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Abstract
An expandable fusion device is capable of being installed inside an intervertebral disc space to maintain normal disc spacing and restore spinal stability, thereby facilitating an intervertebral fusion. The fusion device may include 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.
Claims18
An expandable device comprising:
- a first endplate defining a first opening;
- a second endplate defining a second opening;
- a translation member positioned in between the first endplate and second endplate, wherein the translation member includes a first ramp and a second ramp, wherein each of the first ramp and the second ramp contact the first endplate, wherein movement of the translation member causes the first endplate and the second endplate to extend distally away from the translation member;
- an actuator in direct contact with the translation member;
- and
- a first stabilization member in direct contact with the translation member, wherein the first stabilization member is threaded and engages one or more mateable threads of the translation member,
- wherein the actuator moves independently of the stabilization member.
An expandable device comprising:
- a first endplate;
- a second endplate;
- a translation member positioned in between the first endplate and second endplate, wherein the translation member includes a first ramp and a second ramp, wherein each of the first ramp and the second ramp contact the first endplate, wherein movement of the translation member causes the first endplate and the second endplate to extend distally away from the translation member;
- a threaded set screw that is configured to extend through a wall of the translation member;
- a blocking nut attachable to the set screw;
- and
- a first stabilization member coupled to the translation member, wherein the first stabilization member is threaded and engages one or more mateable threads of the translation member,
- wherein the threaded set screw moves independently of the stabilization member.
Dependencies are inferred from the claim text.