A guide apparatus of an intervertebral implant which is adapted to firmly fix an implant between adjacent corpus vertebrae includes a grip portion. A hollow inner tube is connected to the grip portion, in which an implant insertion tool can be removably inserted. A first guide projection is provided...http://www.google.ca/patents/US5885300?utm_source=gb-gplus-sharePatent US5885300 - Guide apparatus of intervertebral implant