The present invention provides an improved surgical retractor system useful for holding tissue away from a surgical site during a medical or dental procedure. In one embodiment, the surgical retractor system is comprised of a tubular member, such as a cannula, and a retractor member. In an embodiment,...http://www.google.es/patents/US20030195392?utm_source=gb-gplus-sharePatente US20030195392 - Surgical retractor system
Número de solicitud: 10/315,658 Número de publicación: US 2003/0195392 A1 Fecha de presentación: 10 Dic 2002 Patente emitida: US7001333 ( Fecha de emisión 21 Feb 2006)
