Surgical and medical apparatus and instruments, namely, a cardiac left ventricle assist device for heart failure or severe cardiac impairment; artificial limbs; artificial medical and surgical implants in the nature of cardiac assist devices; pumps, namely, centrifugal pumps, self-regulation pumps, mixed-flow impeller pumps, Archimedes screw pumps, screw spindle pumps and pump membranes or diaphragms, all pumps for medical and surgical use