A delivery system for an expandable filter device includes a dual lumen delivery sheath which has a lumen for receiving the expandable filter device and a lumen for receiving a primary guide wire. The primary guide wire is utilized to place the delivery sheath and expandable filter into the desired region...http://www.google.fr/patents/US7425215?utm_source=gb-gplus-shareBrevet US7425215 - Delivery systems for embolic filter devices