A new method of measuring blood viscosity with a U-shaped scanning capillary-tube viscometer using a Casson model

Author

Kim, Sangho ; Cho, Young I. ; Hogenauer, William N. ; Kensey, Kenneth R.

Author_Institution

Dept. of Mech. Eng. & Mech., Drexel Univ., Philadelphia, PA, USA

fYear

2002

fDate

2002

Firstpage

253

Lastpage

254

Abstract

The present study introduces a method to consider different surface tensions at two riser tubes for the viscosity measurements of fluids using a U-shaped scanning capillary-tube viscometer (SCTV). The accuracy and repeatability of the SCTV were demonstrated by comparing the viscosity results of distilled water obtained from the SCTV with the well-accepted reference data for water. Non-Newtonian viscosity of fresh human blood was measured at a body temperature of 37°C. The results demonstrate that whole blood viscosity can be measured over a range of shear rates in less than 2-3 min without any anticoagulants using disposable U-shaped capillary-tube sets

Keywords

biomedical equipment; biomedical measurement; haemorheology; physiological models; surface tension; viscosity measurement; 2 to 3 min; 37 C; Casson model; anticoagulants; blood viscosity measurement method; body temperature; disposable U-shaped capillary-tube sets; distilled water; fresh human blood; medical measurement technique; nonNewtonian viscosity; riser tubes; shear rate; Blood; Charge coupled devices; Equations; Humans; Mechanical variables measurement; Rheology; Surface tension; Temperature; Testing; Viscosity;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioengineering Conference, 2002. Proceedings of the IEEE 28th Annual Northeast

Conference_Location

Philadelphia, PA

Print_ISBN

0-7803-7419-3

Type

conf

DOI

10.1109/NEBC.2002.999561

Filename

999561