The emergence of implantable artificial hearts have brought a better quality of life to heart patients,and has allowed them to leave the hospitals and return to their homes.However,detection of thrombosis in these devices is a major challenge.In present work,electrical spectroscopy method has been proposed to detect the thrombus in real-time by exploiting the electrical properties of the blood.The in-vitro experiment with bovine blood showed dielectric relaxation and relaxation frequency of red blood cell.Additional experiments were conducted to measure temporal resistivity change during thrombus formation process at RBCs relaxation frequency.There was rise 0.05 in resistivity at RBCs relaxation frequency after thrombosis was triggered using calcium chloride solution.The experiments show that the electrical spectroscopy method can be a major auxiliary component in ventricular assist devices(VAD) and extracorporeal blood circulation to detect the thrombosis in real-time.
