A multi-composite disc prosthesis is adapted to be implanted within the annulus of an evacuated disc nucleus space in a human spine. The disc prosthesis has a generally solid unitary body with a size and a shape adapted to be positioned within the annulus of the evacuated disc nucleus space. The body...http://www.google.es/patents/US8038718?utm_source=gb-gplus-sharePatente US8038718 - Multi-composite disc prosthesis
