Trans arterial permanent heart assist device with double stators

摘要

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. It consumes little energy and provides high blood flow. The specially designed hollow rotor without a pivot pin provides enough blood flow to the patient by pushing the blood forward with the helical winglets inside it. The risk of thromboembolic events on the foreign surface that contacts with blood is less than in the counterparts of this 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.

主权项

1. A heart assist device installed as trans arterial, patients with end-stage heart failure, comprising:
a motor which includes a plurality of fixed stators; a ceramic roller; a rotor rotating freely on the roller; a plurality of blood flow smoothers in a curved inlet part; and a curved outlet part with a plurality of blood flow regulating diffusers.