FLUOROSCOPIC LOCATOR AND REGISTRATION DEVICE

摘要

A registration device (100) is used to couple an identification superstructu re of a surgical navigation system to the spinal column. The registration devic e (100) includes a pair of vertebral engaging members (202, 204) positionable in a spinal disc space. At least one of the vertebrae engaging members (202, 20 4) moves outwardly from a collapsed position to engage the registration device (100) to the endplates of the adjacent vertebrae.