Electromagnetic actuator of a gentle pump mechanism for blood transport

Pech, Sebastian; Rathmann, Heiko; Richter, René GND; Nagel, Thomas; Lienig, Jens GND

The maximum operation time in blood pump applications is limited by blood damage caused by mechanical stress within the pump. To overcome this limitation, a new pumping principle is introduced. It is based on wave propagation inside a flexible tube in combination with positive displacement. The tube stimulation is generated by an electromagnetic actuator. In contrast to common roller pumps, it is possible to achieve a pumping operation without a complete tube occlusion. This ensures gentle pumping without damaging the blood cells. Our measurement of the pump curve and the trajectory of the shock head confirms the pumping operation without complete tube occlusion.

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Pech, Sebastian / Rathmann, Heiko / Richter, René / et al: Electromagnetic actuator of a gentle pump mechanism for blood transport. Ilmenau 2017.

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