An intervertebral implant for fusing vertebrae is disclosed. The implant has a body with curved, substantially parallel posterior and anterior faces separated by, two narrow implant ends, superior and inferior faces having a plurality of undulating surfaces for contacting vertebral endplates, and at...http://www.google.de/patents/US7223292?utm_source=gb-gplus-sharePatent US7223292 - Intervertebral implant for transforaminal posterior lumbar interbody fusion procedure
