The invention relates to a needle guidance system provided by a needle with a steerable tip. The needle has a cannula and a stylet. The stylet adjacent to its tip has a naturally curved portion The stylet is movable in two degrees of freedom with respect to the cannulaaxial translation and axial rotation...http://www.google.es/patents/US20040133168?utm_source=gb-gplus-sharePatente US20040133168 - Steerable needle
Número de solicitud: 10/737,958 Número de publicación: US 2004/0133168 A1 Fecha de presentación: 18 Dic 2003 Patente emitida: US7662128 ( Fecha de emisión 16 Feb 2010)
