Expandable fusion device and method of installation thereof
AssigneeBala Sundararajan
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.
Claims20
An expandable device for insertion into an intervertebral space between adjacent vertebral bodies, said expandable device comprising:
- a body having a first end and a second end defining a longitudinal axis therebetween;
- a first endplate;
- a second endplate;
- a translation member positioned in the body and between the first endplate and second endplate, wherein a longitudinal movement of the translation member causes the first endplate and the second endplate to extend distally away from the translation member;
- and
- a stabilization member slidably coupling the first end of the body to the translation member to stabilize the body during expansion of the first and second endplates.
An expandable device for insertion into an intervertebral space between adjacent vertebral bodies, said expandable device comprising:
- a first endplate;
- a second endplate;
- a translation member positioned in between the first endplate and second endplate, wherein a longitudinal movement of the translation member causes the first endplate and the second endplate to extend distally away from the translation member;
- a body portion for receiving the translation member, the body portion having a first end and a second end defining a longitudinal axis therebetween;
- a stabilization member attached to the translation member, the stabilization member slidably coupled to the body portion to stabilize the body portion during expansion of the first and second endplates;
- a threaded set screw that is configured to extend through a wall of the translation member such that a head of the set screw is flush against a surface of the body portion.
Dependencies are inferred from the claim text.