An artificial intervertebral disc including housing members including spaced inner surfaces facing each other and oppositely facing outer surfaces for engaging spaced apart intervertebral surfaces; self-adjusting bearing mechanisms operatively disposed between the inner surfaces for moving relative to...http://www.google.es/patents/US20040225364?utm_source=gb-gplus-sharePatente US20040225364 - Artificial intervertebral disc
Número de solicitud: 10/700,748 Número de publicación: US 2004/0225364 A1 Fecha de presentación: 3 Nov 2003 Patente emitida: US7291173 ( Fecha de emisión 6 Nov 2007)
