Optical Digital Registration of Erythrocyte Sedimentation and Its Modeling in the Form of the Collective Process

The Sedimentation Rate of Free Erythrocytes and Their Associates, the Influence of a Standing Ultrasonic Wave

“…It may be considered that this parameter is responsible for the reliability of the blood group typing. There are different ways to introduce this parameter, for example, [18,[23][24][25][28][29][30][31]. At any rate R shows how strongly the physical quantity measured by the device in the case of a positive agglutination reaction differs from the same value, but with a negative one.…”

“…This is due to the fact that for such significant blood dilutions, the erythrocytes are so far apart from each other that the distance between them significantly exceeds the size of erythrocytes themselves. In this case, the velocity of the upcoming plasma solution flow displaced by erythrocytes sedimenting is not high; therefore, the inhibitory effect of this flow upon erythrocytes is small and, as a result, the RBC sedimentation rate increases [30]. For the same reason (the remoteness of erythrocytes from each other), the influence of ultrasound standing wave on the blood solution sedimentation rate is not too noticeable.…”

“…Indeed, an increase in the proportion of the whole blood in saline over 80% increases the probability of large aggregates forming. In this case, the distance between the aggregates increases, the rate of the upcoming plasma solution flow decreases, and the rate of blood sedimentation, respectively, increases [30].…”