An in-use repairable artificial heart for self sealinga small leaks during use having real time estimation of the magnitude of the leak is presented. Further in the event of larger leaks which fail to self seal the system automatically deactivates the failed subunit of the artificial heart and switches on to a stand-by subunit of the artificial heart. The deactivated subunit is convertible to a flaccid form and removable by keyhole surgery while the blood circulation is maintained by the activated stand-by unit. The removed subunit is replaceable by keyhole surgical manipulation with a new subunit. The self repair and the interventional repair while the artificial heart is functioning gives the artificial heart a perpetual operational character.
