Catheter auxiliary devices and dialysis catheter set using this catheter auxiliary device

摘要

PROBLEM TO BE SOLVED: To provide a catheter auxiliary device which can easily solve the problem of a blood removal failure, and a catheter set for dialysis using the catheter auxiliary device.SOLUTION: The device 50 includes: a connector 20; a shaft 13 which can be inserted into/extracted from the blood removal lumen 110 of a catheter 100 via the connector 20; a capture part 11 which can be projected from a blood removal opening part 111; a body part 10 at least constituted of the shaft 13 and the capture part 11; and an adapter 30 which supports the body part 10 so as to be insertable while tightly closing the lumen of the connector 20. Thus, in a state that the inside of the lumen of the catheter 100 and the lumen of the connector 20 are made negative pressure by a negative pressure generator, the shaft 13 can be inserted/extracted into/from the blood removal lumen 110.