Balloon catheters has a soft tip to avoid vessel perforation.The balloon capacity is becoming to the corresponding lumen. The catheter is made of flexible radiopaque polyurethane with latex balloon and has an inside, removable steel mandrin for difficult vessel constitution. The biliary catheter with lengths of 23 to 40 cm is utilized to remove biliary stones and ductal debries intraoperatively. The catheter is distal open and has at proximal end a sideport with flexible line for balloon filling. The flush catheter (without balloon) is designed for irrigation after successful embolectomy, thrombectomy or bile-duct-operation. The double lumen catheter with a length of 80 cm can be delivered in sizes 4 to 7 CH. The length of 40 cm is especially suitable for elimination of Thrombi out of cannula dialysis. The catheter sizes are colour coded for easy identification and has marker rings at 10 cm intervals.