alma mater kharagpur news great device artifical heart it'll coronary care nano cars scientists indian institute technology kharagpur devised artificial heart save lives lakh reports times india research team trials prototype constructed heart successful small animals gadget perfected goats institute applied permission conduct human trials total artificial heart country developed team scientists iit-kgp's school medical science technology years painstaking research scientists creation affordable artificial heart developed showed high rate failure lakh reach common inventors hope heart ailing patient months permissions indian council medical research unique chamber heart working fine small animals member team human tests conducted medical college hospital kolkata senior cardiac surgeons madhusudan bhaskar ukil tarun saha kalishankar rajiv narang aiims delhi conduct human trials touch venugopal aiims director leading cardiac surgeons country expect part team sujoy guha iit-kgp faculty member bio-medical engineering expert leading artificial-heart team great patients heart muscles weak transplantation angioplasty stents bypass surgery patients strengthen muscles difficult find donor organs transplantation body develops auto rejection severe medication required suppress immune reactions guha life-saver price tata nano scientists bengal lost nano world miss -lakh invention news courtesy times india 