Performance analysis of a novel piezo actuated valveless micropump for biomedical application

摘要

Micropumps constitute an integral part of microfluidic systems for delivery and control of a precise volume of fluids in a specific direction. Micropumps find extensive utilization in biomedical applications such as drug delivery, biological fluid transmission, organic analysis, and other applications such as electronic cooling, chemical analysis, spacecraft, etc. In the present work, design, fabrication, and testing of a novel valveless micropump with amplified piezo actuator have been presented explicitly for biomedical fluid transmission. In the current work, design, manufacturing, and experimental study of a novel micropump with amplified piezo actuator have been presented explicitly for biomedical fluid transmission. The designed prototype of the micropump has a distinctive feature of the disposable chamber, which allows the pump chamber to be disposed off upon use, thus overcoming the problem of contamination. The micropump employed low-cost polymethylmethacrylate (PMMA) as the structural material with silicone rubber diaphragm. The proposed prototype of the micropump was capable of delivering 5.771 ml/min of water for a sinusoidal input voltage of 150 V at 5 Hz.