A prosthetic disc for insertion between adjacent vertebrae includes upper and lower plates, a core disposed between the plates, and at least one projection extending from at least one of the upper and lower curved surfaces of the core into at least one recess of one of the inner surfaces of the plates....http://www.google.fr/patents/US20050021146?utm_source=gb-gplus-shareBrevet US20050021146 - Intervertebral prosthetic disc
Numéro de demande: 10/855,817 Numéro de publication: US 2005/0021146 A1 Date de dépôt: 26 mai 2004 Brevet délivré: US7442211 ( Date de délivrance 28 oct. 2008)
