An interbody fusion device in one embodiment includes a tapered body defining a hollow interior or chamber for receiving bone graft or bone substitute material. The body defines exterior threads which are interrupted over portions of the outer surface of the device. The fusion device includes truncated...http://www.google.es/patents/US6613091?utm_source=gb-gplus-sharePatente US6613091 - Spinal fusion implants and tools for insertion and revision
Spinal fusion implants and tools for insertion and revision
