An infusion catheter having a catheter shaft with a distal end, an inflatable and contractible balloon provided adjacent the distal end but spaced therefrom, a blood passage with two openings for passing blood through the balloon, and first and second lumens. The first lumen communicating...http://www.google.se/patents/US5840066?utm_source=gb-gplus-sharePatent US5840066 - Infusion catheter
