An instrument for inserting an implant between vertebral bodies, including a holder adapted to hold the implant during insertion of the implant between the vertebral bodies, a retractor adapted to retract the holder away from the implant after the insertion, and a guard adapted to prevent the implant...http://www.google.ca/patents/US7404795?utm_source=gb-gplus-sharePatent US7404795 - Femoral ring loader
