A device and method for repairing spinal discs in which the nucleus has been damaged. A central section of the nucleus is cored out using a device which ablates the tissue using RF energy. A nucleus implant comprising a shape memory material is placed in the central section of the disc through a cannula,...http://www.google.es/patents/US20050043796?utm_source=gb-gplus-sharePatente US20050043796 - Spinal disc nucleus implant
