Circuit of equipment?
1 - Cannulate the right atrium - so blood entering the right atrium flows out of the heart and down tubes into the reservoir
2 - Blood flows to the main artificial heart pump where it is temperature controlled and passes through oxygenator for gaseous exchange
3 - This leaves via the aorta to the rest of the body
4 - Hand held suckers suck bleeding blood away from the surgery site and into the filter, where it rejoins and point 2