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The fouling and cleaning of venous catheters : a possible optimization of the process using intermittent flushing

By Laurent Royon, Durussel J.J., J. Merckx, P. Flaud, Vigier J.P. and G. Guiffant

Abstract

International audienceThe aim of this note is mainly to report some experimental results obtained for mass transport under controlled flow conditions in a system where convection and diffusion are coupled with chemical reactions. One special point of the process is that the different time scales for convection-diffusion and physico-chemical processes are of the same order thus leading to a possible optimisation of the process. Then a phenomenological description is suggested giving a possible description of the process. The context of the problem is of crucial practical importance in the framework of medical application and can be described in the following way

Topics: mass transfer, catheters, adhesion, fouling, flushing, cleaning, convection, mass transfer., [ PHYS.MECA.MEFL ] Physics [physics]/Mechanics [physics]/Mechanics of the fluids [physics.class-ph], [ SPI.MECA.MEFL ] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph], [ SDV.IB ] Life Sciences [q-bio]/Bioengineering
Publisher: Elsevier
Year: 2011
DOI identifier: 10.1016/j.cherd.2011.10.004
OAI identifier: oai:HAL:hal-00651080v1
Provided by: Hal-Diderot
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