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Modified small mobile pneumatic driver system to power the total artificial heart (TAH). A: Original TAH Circulatory Support System (CSS) console (Big Blue Driver). B: Modified Excor drive system mounted on dolly (photo is same scale as Big Blue for comparison). C: Hand pump capable of driving TAH in case of complete system failure. D: Close-up of the Excor with right and left pumping units and central valve system.
