Expandable fusion device and method of installation thereof
AssigneeGlobus Medical, Inc.
InventorsChad Glerum, Mark Weiman, Andrew Iott, Mark Adams
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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:
- inserting an intervertebral implant into a disc space, wherein the intervertebral implant includes:
- a first endplate having an outer side, an inner side, an anterior end, a posterior end, a first side, a second side, and at least one extension, the extension extending from the inner side;
- a second endplate having an outer side, an inner side, an anterior end, a posterior end, a first side, a second side, and at least one extension, the extension extending from the inner side;
- a translation member, at least a portion of the translation member is received between the upper endplate and the lower endplate;
- an actuation member, the actuation member having threading located along at least a portion of the actuation member;
- and
- at least one pin, a first portion of the at least one pin being received by the translation member, wherein at least one of the at least one extensions of the first and second endplates includes at least one opening for receiving a second portion of the at least one pin,
- wherein the at least one pin extends generally horizontally in a direction from the first side to the second side of the first or the second endplate,
- moving the translation member in a first direction to move at least one of the first and second endplates in a direction away from the other.
A surgical method comprising:
- inserting an intervertebral implant into a disc space, wherein the intervertebral implant includes:
- a first endplate having an outer side, an inner side, and an extension having at least one opening, the extension extending from the inner side toward a central longitudinal axis of the implant;
- a second endplate having an outer side, an inner side, and an extension having at least one opening, the extension extending from the inner side toward the central longitudinal axis of the implant;
- a translation member having at least one expansion portion;
- and
- at least one pin, the at least one pin having a first portion and a second portion, the second portion being received by the at least one expansion portion and the first portion being received by at least one of the at least one openings of the extension of the first endplate;
- an actuation member contacting the translation member, the actuation member having threading located along at least a portion of the actuation member,
- moving the translation member in a first direction causing the first and second endplates to move in a direction away from the central longitudinal axis.
Dependencies are inferred from the claim text.