An insertion instrument for inserting an implant in an intervertebral space is provided. The instrument includes an elongate shaft having proximate and distal ends with a longitudinal axis therebetween. On the distal end of the elongate shaft is a gripping device capable of shifting from a holding configuration...http://www.google.de/patents/US7976550?utm_source=gb-gplus-sharePatent US7976550 - Insertion instrument for artificial discs