Liquid magnetic levitation axial-flow type heart auxiliary blood pump
A magnetic levitation shaft and heart assisting technology, applied in blood pumps, hypodermic injection devices, suction devices, etc., can solve the problems of many dead angles of blood flow, large volume of blood-passing parts, mechanical hemolysis and thrombus, etc. The effect of less dead space, increasing the area of the inlet channel, and reducing the chance of thrombus
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[0021] The present invention is a "pump-machine assembly" composed of a pump system and a driving motor system. The pump system is composed of a pump pipe 13, an impeller 1, an impeller hub 4, a rear guide vane 10, and a rear guide vane hub 11. The front end of the impeller The leading vane is removed; the drive motor system is composed of the inner permanent magnet rotor 5, the stator core 16, the stator coil winding 17, the motor casing 15, and the energy supply wire 14; the inner permanent magnet rotor 5 of the drive motor system is embedded in the impeller of the pump system In the hub 4, the outer edge of each blade 2 of the impeller 1 has an inclined roof eaves 3, and the roof eaves 3 and the inner wall 23 of the pump tube form an inlet 24 and an outlet 25, and make the inlet 24 large, The outlet 25 is small. When the impeller 1 rotates in the direction of rotation 26, most of the blood flows through the main channel between the blades, and a small part of the blood flows...
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