An intraluminal imaging catheter system for viewing segments of vessels downstream of the catheter itself is provided. The catheter system incorporates an ultrasonic transducer pivotally mounted adjacent the catheter's distal end. A flexible drive means disposed within a flexible tubular member adapted...http://www.google.es/patents/US5373849?utm_source=gb-gplus-sharePatente US5373849 - Forward viewing imaging catheter
