V.E. Pchelintsev1, V.Yu. Leushin2, S.S. Piskarev3, S.V. Chizhikov4, M.P. Neimyshev5

1,4,5 Bauman Moscow State Technical University (Moscow, Russia)

2 Center “Photonics” (Moscow, Russia)

2 Engineer Academy, Peoples’ Friendship University of Russia (Moscow, Russia)

3,4 Ltd "GIPERION" (Moscow, Russia)

When mixing blood with a preservative, hemolysis of blood during its collection from a donor is possible due to sudden shaking of the polymer container with donor blood. Therefore, the task of analyzing existing technical solutions for mixing donor blood with a preservative and choosing a mechanism that provides the so-called "gentle mixing", which reduces the likelihood of blood hemolysis, is urgent.

The purpose of this work is to develop recommendations on the choice of a mechanism that converts the rotational movement of the motor shaft into oscillatory movements of a platform with a polymer container with donor blood placed on it to ensure its "gentle rocking".

As a result of the analysis, a technical solution was proposed that provides a smooth rocking of the platform with a polymer container for mixing blood with a preservative, which reduces the likelihood of blood hemolysis.

In this mechanism friction force is used to transmit the rotational motion of the electric drive shaft into oscillatory movements of a platform with a polymer container located on it for collecting donor blood. For this purpose, rollers and special guides can be used that can ensure smooth rocking of the platform in devices for dosing and mixing donor blood with preservative

The proposed technical solution is recommended for use in mass-produced devices for dosing and mixing donor blood with a preservative.

Pchelintsev V.E., Leushin V.Yu., Piskarev S.S., Chizhikov S.V., Neimyshev M.P. Methods of reducing the probability of hemolysis of blood by mixing it with a preservative in donor blood dosing devices. Nanotechnology: the development, application – XXI Century. 2022. V. 14. № 4. Р. 19-24. DOI: https://doi.org/10.18127/j22250980-202204-02 (In Russian).

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