A multi-lumen biliary catheter in which at least one of the lumens (14, 16) has a side opening port (24, 26) configured to guide a guidewire (32) out of that port at an angle to the longitudinal axis of the catheter. Radiopaque marker bands (34) having different lengths are placed on the distal end of...http://www.google.com.au/patents/US7632241?utm_source=gb-gplus-sharePatent US7632241 - Multi-lumen biliary catheter with angled guidewire exit
