The preset invention discloses an artificial heart and lung apparatus (100) including a roller pump (120)； a blood removal line (101)； a first blood transfer line (104)； a blood removal rate sensor (111) and a control unit (140) that performs linked control of the roller pump (120) in correspondence with a blood removal rate. The control unit (140) is capable of detecting that the blood removal rate deviates from a blood removal condition set in advance, and out-of-set condition blood removal is performed.
