Abstract

The work is dedicated to problems connected with blood clot formation and study of blood flow features in vessels with stenosis. Using high-speed recording an analysis of flow structure of biological dispersion (blood) in acoustic field of mild intensity is made. It carried out in microchannel simulating a blood vessel with stenosis made and using soft lithography technology. The flow is arranged at constant pressure drop provided by hydrostatic pump in a range of 100–800 Pa. It was found a strong influence of acoustic field on a dynamics of blood flow in a microchannel at the range of frequencies 20–500 kHz and amplitudes below than 50 kPa. Results show reciprocating movements of flow in a region of microchannel narrowing. It is found a possibility of ultrasound field impact on blood clots formed in region of vessels stenosis.