PURPOSE: To execute the removal of a blood clot without fail, to speedily execute the removal, to completely prevent blood from leaking and further to safely and securely execute the insertion of medicine into a blood vessel without leaking by including a check valve, which is mounted in a main tube with being adjacent to a branching part, and a soft tube, whose central part is freely compressed, to be mounted in a branched sub tube.

CONSTITUTION: A branching tube 10 has a check valve 22 in the opposite side of a shunt tube, which is in the vicinity of the branching part of a main tube 12 to be directly connected with the shunt tube, and in this branching part, a sub tube 14 to have a check valve 20, which is opened by pressing-in a lure-shaped chip, and another sub tube 16, to which the soft tube to be freely expanded is engaged as necessary, are obtained. The sub tube 14 having the check valve 20, which is opened by pressing-in the chip, has the aperture part of satisfactory closing is obtained to be engaged to the lure, etc., of a syringe and water density. Further, a clamp is fit to a soft tube 18, which is freely expanded, to receive the removed blood clot. Thus, while the blood is prevented from leaking, accumulated exhausting objects such as the blood clots can be successively exhausted.