Devices and methods for supporting adjacent spinous processes include opposing plates movable toward one another along a cross post to contact opposite sides of each of the spinous processes, and a spacer member about the cross post contacting the adjacent surfaces of the spinous processes to resist...http://www.google.ca/patents/US20060247640?utm_source=gb-gplus-sharePatent US20060247640 - Spinous process stabilization devices and methods
