A spinal fixation system comprising at least two bone anchors, a rod connecting the bone anchors and a connecting plate extending from a proximal surface of at least one of the bone anchors. A method of fixing vertebrae relative to each other comprising the steps of: implanting bone anchors in two adjacent...http://www.google.es/patents/US20100036420?utm_source=gb-gplus-sharePatente US20100036420 - HEAD-TO-HEAD CONNECTOR SPINAL FIXATION SYSTEM
Número de solicitud: 12/581,410 Número de publicación: US 2010/0036420 A1 Fecha de presentación: 19 Oct 2009 Patente emitida: US7967845 ( Fecha de emisión 28 Jun 2011)