A medical device (5) is provided which comprises a catheter tube having a distal end and a lumen, and configured to assist in applying tamponage to a bleeding source in a gastrointestinal tract when flexed. A catheter tip having a catheter tip outer surface is assembled with the tube adjacent the distal...http://www.google.de/patents/US7311708?utm_source=gb-gplus-sharePatent US7311708 - Fluid-assisted medical devices, systems and methods