Hydrodynamical processes in medical devices for blood-oxygen saturation

Tests of the commercial oxygenators show different kinds of defects. Between them are thrombosis, hemolysis and constipation of membrane channels with plasma leukocytes, shunting of а venous blood stream between membrane capillars or at the wall of device. To prevent the above mentioned unwanted effects it is necessary to consider and optimize all the physical and chemical processes in the device at the design stage. These include hydrodynamical, mass-transfer and chemical (hemoglobin-oxygen saturation) processes. The article considers the method of a hydrodynamical mathematical modelling for the blood flow in a membrane oxygenator. Also the verification of numerical data is performed. For the verification process a hydrodynamical test bench with domestic design was used. The test data and those of comparative analysis show fair results that allow to use the model for further analysis of different aspects of the device functioning.