An expandable vertebral interbody/intravertebral (spinal) body device for insertion into a spinal (intervertebral or intravertebral) space is provided. The interbody/intravertebral body device is expandable from a first circumference to a second circumference through axial compression of segments of...http://www.google.ca/patents/US20060224241?utm_source=gb-gplus-sharePatent US20060224241 - Expandable spinal interbody and intravertebral body devices
