A technique for continuously measuring filtration resistance at constant pressure

Issue title: New Methods in Biorheology. Proceedings of the International Symposium held in Nancy, France, 17–18 August 1983. A Satellite Symposium of the Fifth International Congress of Biorheology

Guest editors: J.F. Stoltz and E. Puchelle

Article type: Research Article

Authors: Duvivier, C.^a | Arnould, J.P.^a | Malher, E.^a | Fourneau, C.^b | Stoltz, J.F.^b

Affiliations: [a] Centre de Technologie Biomédicale, INSERM SC 23, 54511 Vandoeuvre Les Nancy, France | [b] Groupe d’hémorhéologie, Centre Régional de Transfusion Sanguine, 54500 Vandoeuvre Les Nancy, France

Abstract: A device for continuously measuring, at constant pressure, the filtration resistance of different liquid suspensions is described. It is made up of two main parts: flowmeter system and electronic circuit. The flowmeter consists of a capillary tube and a sensitive pressure transducer, and has a time response of 100 ms and a linearity of ± 1 % from 1 μls−1 to 200 μls−1. The electronic part allows the calculation and recording of flow versus time and filtration resistance versus the volume which passes through the filter. Principle, technical characteristics of the system and examples of recording with several Red Blood Cell populations are reported.

Keywords: filterability, erythrocytes, constant pressure

DOI: 10.3233/BIR-1984-23S147

Journal: Biorheology, vol. 23, no. s1, pp. S271-S274, 1984