Systems and method in accordance with an embodiment of the present invention can includes an implant comprising a spacer and a frame having a central body and a helical shaped wing extending from the central body. The frame can be positioned near about adjacent spinous processes, and can be rotated and...http://www.google.se/patents/US8147548?utm_source=gb-gplus-sharePatent US8147548 - Interspinous process implant having a thread-shaped wing and method of implantation
