A web of tubes and electric cords is interwoven in closed circuits through a Heart-Lung Machine, Dialysis Machine, an Infant Incubator, a Mechanical Ventilator and an Intraoperative Cell Salvage Machine.
The organ replacement machines operate in orchestrated loops, keeping each other alive through circulation of electrical impulses, oxygen and artificial blood.
Salted water acts as blood replacement: throughout the artificial circulatory system minerals are added and filtered out again, the blood gets oxygenated via contact with the oxygen cycle, an ECG device monitors the system's heartbeat. As the fluid pumps around the room in a meditative pulse, the sound of mechanical breath and slow humming of motors resonates in the body through a comforting yet disquieting soundscape.
It seems horrifyingly wrong that there are air bubbles everywhere... wouldn't those bubbles be quite deadly, in actual blood on an actual patient? Is none of these machines actively preventing them, or at least warning about them?
As someone who had to spend months changing someone's PIC-pump bag (systemic infections are no fun, kids!) with basically 3 minutes of training, "small" bubbles (for indeterminate values of "small") thankfully diffuse harmlessly and apparently quite readily through the lungs. http://en.wikipedia.org/wiki/Air_embolism
Seeing any air in a system connected to actual meat still creeps me out, though.