Abstract: A catheter having an elongated tube with a central lumen, a proximal end, and a distal end terminating in a tip; a balloon and a balloon lumen that is in fluid communication with the balloon, the balloon being situated at a point along the elongated tube between the proximal and distal ends of the elongated tube; and a catheter hub that is connected to the proximal end of the elongated tube, the catheter hub being in fluid communication with the central lumen and the balloon lumen. The elongated tube has one or more side holes between the balloon and the tip of the distal end of the elongated tube or an end hole at the tip of the elongated tube. The elongated tube also has one or more side holes between the balloon and the hub. There is no fluid communication between the central lumen and the balloon lumen.