SPICE modelling and design optimization of micropumps

Authors

Elisa Morganti, University of Perugia
Iolanda Fuduli, University of PerugiaFollow
Andrea Montefusco, University of Perugia
Marco Petasecca, University of PerugiaFollow
Giorgio U. Pignatel, University of Perugia

RIS ID

80236

Publication Details

Morganti, E., Fuduli, I., Montefusco, A., Petasecca, M. & Pignatel, G. U. (2005). SPICE modelling and design optimization of micropumps. International Journal of Environmental Analytical Chemistry, 85 (9-11), 687-698.

Abstract

This article describes a study concerning micropump design for medical purposes. In particular the project is focused on treatment of Hydrocephalus. An actuator glued on a membrane, a pumping chamber and a certain number of valves constitute the micropumps. The actuator is a piezoelectric disc, controlled according to data collected by means of a pressure sensor. We have studied two different structures of micropump: the first with membrane valves, and the second with diffuser/nozzle valves, without moving parts. Modelling both micropumps with electrical equivalent networks, we are able to estimate the pump behaviour, in terms of flow rate, with a simulator such as SPICE, and to optimize the micropump design for best performances. © 2005 Taylor & Francis.