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One of the most critical elements in the international health system is blood donation. Unfortunately, several countries, mostly low-income, and middle-income countries have limited blood transfusion capacity. Less than 25% of the national blood supply is obtained from voluntary unpaid blood donors in 40 countries, and for that reason, the goal of the WHO for all countries is to obtain all blood supplies from voluntary unpaid blood donors. Since WHO needs to permanently increase and improve national blood services, it is necessary to implement the policies for more widely available blood for the patient. To minimize hemolysis and averaging the temperature field indicators over the entire volume of the blood bag, the above-described devices must implement mixing of whole blood smoothly and without jerks. Stirring in blood service apparatus is developed by using electric drives controlled by an electromechanical system, designed to convert electrical energy into mechanical energy. This article contains information about an electric drive control system based on a reversible motor driver. The results will be utilized for further modernization and development of new transfusion therapy devices using current LLC Leadcore production. |
