Elongated medical devices are disclosed adapted to be inserted through an access pathway into a body vessel, organ or cavity to locate a therapeutic or diagnostic distal segment of the elongated medical device into alignment with an anatomic feature of interest. Multi-lumen steerable catheters having...http://www.google.es/patents/US7037290?utm_source=gb-gplus-sharePatente US7037290 - Multi-lumen steerable catheter