3D Printed Electromagnetic Micropump for Implantable Drug Delivery

This paper introduces an electromagnetic micropump for drug delivery applications. The diffuser-nozzle structure allows a valveless unidirectional flow. The performance of the electromagnetic actuator is investigated theoretically and evaluated experimentally. More importantly, we present a proper compromise between the device miniaturization and the electromagnetic pumping force for implantable drug delivery applications. For an input current and voltage of 160 mA and 4.6 V, respectively, the micropump produces a flow rate of 1.2174 ± 0.0041 µl/s. The low power consumption, small size, and precise flow rate make the proposed micropump suitable for implantable drug delivery applications.