The invention is a next generation miniature heart assist device developed in order to maintain the blood circulation in patients with severe heart failure, and is applied endovascularly to the large arteries. This device is technically a kind of synchronous servo electric motor using “direct drive technology”. It provides longer battery life and high blood flow. Small volume and very low energy consumption provide a much longer battery life and a high blood flow. As the outer surface of the parts placed into the blood vessel will be completely covered with the endothelial cells and the intima layer of the arteries in time, there will be no foreign surface contacting directly with blood. As a result, no thromboembolic event or any negative effect on the cellular components of blood is expected.
