A blood pump housing device designed to enclose and protect a total artificial heart when implanted in a subject is disclosed. The blood pump housing device comprises a first and second artificial heart pump receiving part (3a, 3b) configured to receive and partly enclose a first and a second artificial heart pump (20a, 20b) of a total artificial heart (TAH); and a first and second pump actuation enclosing part (4a, 4b) configured to partly enclose a first and second pump actuation means (60a, 60b), said artificial heart pump receiving parts (3a, 3b) and pump actuation means enclosing parts (4a, 4b) are arranged to connect to each other in a leak-free manner.