Abstract: The main application of this pump is for human heart coronary bypass, cardiac and transplant surgery. A non-occlusion blood pump of peristaltic type and blood pump tube element with pulsating pressure pump delivery, giving similar momentum to blood flow as a natural heart beat, needed to penetrate the capilaries, tiny blood vessels of human body. Most important improvement in this pump is in an especially conceived blood pump tube element which reduces hemolysis of blood by first being partially squeezed during pumping and thus not requiring any occlusion adjustments, second by its elements so structured to minimize internal flow friction and turbulance, both of these minimize the hemolysis of blood, as proved by tests. The devices comprised basically of two but not necessarily, blood pump tube elements.

Abstract: The Blood Pump Tube Element will prevent the destruction of blood cells during a prolonged pumping of blood. The device comprises a series of interconnected bag-like chambers within a tube. The chambers fully contain fluid (blood) and each is provided with inlet and outlet valve means. The tube is engaged by a plurality of rollers mounted on rotating arms, thereby giving a peristaltic pumping action to the fluid in the bag-like chambers. Additionally, the position of the rollers on the arms may be adjusted.