Abstract: A curved expandable interbody device for placement between vertebrae having an upper structure, a lower structure, and a screw mechanism, wherein actuation of the screw mechanism moves the upper and lower structures between a collapsed configuration and an expanded configuration. A deployment tool couples to the curved expandable interbody device for positioning the device between adjacent vertebrae and actuating the screw mechanism, wherein the deployment tool can lock to the curved expandable interbody device and pivot relative to the curved expandable interbody device.

Abstract: A retractor for use in surgical operations comprises a first blade, a second blade, and a third blade. In operation, the blades are initially in a closed position to assume a low profile during insertion. The blades can be independently translated and independently pivoted, thereby stretching the skin about the incision to form an aperture larger than the incision. In some embodiments, a method of performing an operation on a patient using the disclosed retractor is provided.