The present invention discloses a mechanical heart pump system for performing function of the heart during heart surgery. The system comprises of a first pumping means, a second pumping means, a reservoir, regulating means, plurality of connecting means and real time control means. The reservoir is configured to receive and temporarily hold the deoxygenated blood from the heart inlet. The first pumping means which includes an accumulator and screws pump is configured to pump the de-oxygenated blood from the reservoir through an accumulator into the lungs inlet. The second pumping means which includes an accumulator and screw pump is configured to pump the oxygenated blood from the lungs outlet to heart outlet. The regulating means is configured to control the temperature and pressure level within the predetermined limit. The accumulator is configured to intensifying the pressure level, preventing back flow and eliminating bubbles from the blood. The real time control means is configured to control the blood circulation as per predetermined favorable pressure, temperature and oxygen level, and allowing/using real function of original lung thereby nourishing the respiration of blood cells throughout the entire duration of heart surgery, artificially performing function of heart and eliminating the need of external oxygen supply. The components including the first pumping means, a second pumping means, a reservoir, regulating means and real time control means are interlinked through plurality of connecting means.
