Various embodiments of the present disclosure can include an apparatus. The apparatus can include a balloon and a coil inside the balloon. The apparatus can also include an elongate shaft with a proximal end portion and a distal end portion, where the distal end portion of the shaft is coupled with the balloon. The elongate shaft can include a lumen, wherein the lumen comprises a first lumen portion inside the shaft and a second lumen portion inside the balloon. The apparatus can include a closed loop circulation path where the elongate shaft, the lumen, and the balloon are configured to circulate a fluid through the closed loop circulation path.
