The invention relates to medical engineering, in particular to a device for pumping blood.; Electromechanical drive the artificial heart, a motor comprises a hollow rotor, in which the nut is accommodated, the satellite rollers and the central screw. On threaded nut elements, rollers satellites and central screw, multiple-start thread is formed with a ratio of calls of 5: 2: 1, i.e. 5 visits to the nut 2 on the rollers approach satellites 1 approach the central screw. Threaded nut elements, rollers satellites and a central screw, adapted to the thread angle equal 85.5 degrees.; The utility model can improve the performance of electric drive and reduce the noise level during operation.; 1 yl.
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