Optimization of the Performance of a Biomedical Micro-Pump

E Bourbaba, M Bouanini, C Benachaiba


This paper discusses the optimization of a micro-pump composed by deformable polymeric membrane in contact with reservoir and examines the effect of the materials property at the performance and the functionality of the system. The Neo Hookean  hyperelastic material model is used to simulate the deformation of polydimethylsiloxane (PDMS) elastomer and compared with Poly methyl methacrylate (PMMA). The results of simulation by finite element are presented and discussed.

 In second steps we study the power to inject by active membrane a Newtonian and a non Newtonian fluid in microcanalization, the power law is used to model the variation of the blood viscosity and precise the maximum value of flow rate at minimum applied pressure and control the fluid transportation.

This type of micropump appears to be suitable for biomedical applications and demonstrate the versatile use of active membrane as moving parts to inject the fluids us blood or glucose.

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Marc A Unger, Hou Pu Chou, Todd thorse, Axel Scherer, Stephen Quake,“Monolithic microfabricated valves and pumps by multilayer soft lithography”, journal Science 2000, (5463),113-116. CrossRef

N. Belayachi, N. Benseddiq, M. Abdelaziz. “Numeric and experimental survey of the behavior of the polymeric shocks by an approach of homogenizationz” 18 French Congres of Mechanics, 2007, Grenoble.

R. S. Rivlin and D. W. Saunders, "Large elastic deformations of isotropic materials.(vii) experiments on the deformation of rubber," Philisophical transactions of the Royal Society,1951, 243,251-288.

S.Rosset, and al., “Mechanical characterization of a dielectric elastomer microactuator with ion-implanted electrodes”, Sensors and Actuators A: Physical, 2008. 144(1),185-193. CrossRef

L.R.G.Treloar. “Stress-strain data for vulcanized rubber under various types of deformation” ,Transaction Faraday Society, 1944, 40, 59-70. CrossRef

Jerrold.Marsden, Thomas.Hughest. “Mathematical foundations of elasticity’,prentice- hall” Inc.Englewood Cliffs,1983 edition, New Jersey,556p.

J.Bonet, R.D.Wood, “No linear continuum mechanics for finite element analys”, Combridge university press, 1997, ISBN: 978-0521838702, 248p.

R. Fahraeus, T. Lindqvist, “The viscosity of the blood in narrow capillary tubes”, merican Journal of Physiology, 1931, 96, 562-568. CrossRef

D. VBoger, K. Walters, “Rheological phenomena in focus”, Elsevier Science, Amsterdam,1993,Print ISBN:9780444894731.

Lee Jessamine N, Park Cheolmin, George M Whitesides. “ Solvent compatibility of poly(dimethylsiloxane)- based microfluidic devices” Analytical Chemistry, 2003, 75(23), 6544–6554. CrossRef

DOI: http://dx.doi.org/10.21152/1750-9548.10.2.205

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