An intervertebral implant includes a middle part, comprising two pins, which can be introduced into the intervertebral space between two vertebrae having a central axis, a first end intersecting the central axis, and a second end intersecting the central axis, and two longitudinal parts each with a longitudinal...http://www.google.com/patents/US7588591?utm_source=gb-gplus-sharePatent US7588591 - Intervertebral implant