The invention is a new generation permanent heart assist device developed to be installed into great arteries such as trans-aortic and trans-pulmonary artery to maintain blood circulation of the patients with end-stage heart failure. This device is a sort of brushless, synchronous, servo, electric motor which uses direct driver technology. Since it consumes little energy because of its small volume and extrordinary motor design, it provides high blood flow with its long lasting battery. The specially designed hollow rotor without a pivot pin which revolves on the rollers made of nonabrasive ceramic-like materials provide enough blood flow to the patient by pushing the blood forward with the helical winglets inside it. There are winglets smoothing blood flow in the inlet of the device and there are winglets regulating turbulence in the blood flow in the outlet of the device. The risk of thromboembolic events on the foreign surface that contacts with blood is less than in the counterparts of this device which provides a flow similar to the natural flow of aorta with the curved parts in the inlet and outlet of the device. Finally, the invention is a curved permanent heart assist device that is applied on the aortas, reinforced twice with double stators and designed in smaller size so as not to compress surrounding tissues and organs.Linvention concerne une nouvelle génération de dispositifs dassistance cardiaque permanents, qui sont conçus pour être installés dans de grandes artères, telles que laorte et lartère pulmonaire, pour maintenir la circulation sanguine de patients souffrant dune insuffisance cardiaque en phase terminale. Le dispositif selon linvention est une sorte de servomoteur électrique, synchrone et sans balais qui utilise une technologie à entraînement direct. Comme ledit dispositif consomme peu dénergie en raison de son petit volume et de la conception extraordinaire de son moteur, il fournit un flux sanguin élevé grâce à sa batterie longue durée. Le r
