Patent ID: 8486149

Claim:
An expandable interbody fusion implant for insertion between two adjacent vertebrae and that is configured to move from an initial configuration to an expanded configuration, the implant comprising: a first body member having a first body having a distal portion and a proximal portion and an upper surface configured to engage a first vertebra and a lower surface configured to engage a second vertebra and a first plate coupled to the proximal portion of the first body; a second body member pivotally coupled to the first body member about a pivot axis, the second body member having a second body having a distal portion and a proximal portion and an upper surface configured to engage the first vertebra and a lower surface configured to engage the second vertebra and a second plate coupled to the proximal portion of the second body, wherein the first and second body members are pivotally coupled at the proximal portion of the first and second bodies; wherein the first and second plates each define a fixation element receiving aperture that is configured to receive a bone screw to selectively affix the first body member to the first vertebra and the second body member to the second vertebra; and a channel that extends at least partially through at least one of the first and second bodies, the channel configured to receive an inflatable balloon, wherein the second body member is configured to be adjacent the first body member, such that expansion of the inflatable balloon biases at least one of the first and second body members away from the other in a direction transverse to the pivot axis, thereby causing the implant to move from the initial configuration to the expanded configuration.