Development of Pulseless Output Micropump Using Magnet-Solenoid Actuator

In the fields of biomedical engineering, a new type of micropump that can supply micro liquid flow continuously has urgently been demanded. Some researchers have proposed several kinds of micropump, but the types of their output are mostly pulsatile. These types of output mode make some difficulties in flow rate measuring and controlling. Therefore, it is our purpose to develop a novel type of pulseless output micropump that has the characteristics of flexibility, low driving voltage, good response and safety in body. This paper describes the new structure and motion mechanism of the micropump, which is driven by magnet-solenoid actuator. The possibility of the micropump is also discussed. Experiments are conducted to verify the effectiveness of the pump.