A catheter system with an enhanced steering system, allowing for positioning the distal portion of the catheter proximate to a desired biological target tissue site, is provided. The system includes an elongated tubular member having a steerable distal end configured to deflect, or otherwise direct,...http://www.google.se/patents/US20030125725?utm_source=gb-gplus-sharePatent US20030125725 - Catheter having improved steering
