Blood circulation circuit

Abstract

The blood circulation circuit 1 includes: a blood removal line 2 that removes venous blood; a blood storage tank 4 that is connected to the blood removal line 2 and stores the blood that has flowed through the blood removal line 2; a negative pressure adjusting device 6 that adjusts a negative pressure inside the blood storage tank 4; a blood pump 5 that pumps the blood in the blood storage tank 4; an artificial lung 7 that performs gas exchange of the blood pumped from the blood pump 5; and a blood collecting line 3 that is connected to the blood storage tank 4 and sucks blood from a surgical site by the negative pressure in the blood storage tank 4.

Dependencies are inferred from the claim text.