КОСВЕННЫЕ МЕТОДЫ ОПРЕДЕЛЕНИЯ РАСХОДА И НАПОРА РОТОРНЫХ НАСОСОВ ДЛЯ КРОВИ

The article describes complex software to calculate the main parameters of the axial pump (pressure drop and flow rate) on the basis of an analysis of its technical characteristics (current consumption and pump speed). It is shown that the calculated value of pressure drop and flow rate throughout the range of operating loads and pump speeds is different from the measured one by no more than 10%. It is shown that this software package may be included in the control system of axial pump. В статье приводится описание методов, средств и результатов расчета основных параметров осевого насоса (перепада давления и расхода) на основе анализа его технических характеристик (потребляемого тока и скорости вращения ротора). Показано, что расчетное значение перепада давления и расхода во всем диапазоне рабочих нагрузок и скоростей вращения ротора насоса отличается от измеренного не более чем на 10%. Демонстрируется возможность включения созданных средств в систему управления осевым насосом крови для протезирования функций левого желудочка сердца.

ДИСТАНЦИОННЫЙ МОНИТОРИНГ ПАЦИЕНТОВ С СИСТЕМОЙ ДЛИТЕЛЬНОЙ МЕХАНОТРОННОЙ ПОДДЕРЖКИ КРОВООБРАЩЕНИЯ

The article describes the technology of remote patient monitoring and the parameters of circulatory assist device AVK-N as well as the advantages of said technology to improve the efficiency of personalized medicine in diagnosis and treatment of patients with AVK-N in the postoperative period. Authors show the capabilities of remote monitoring technology to determine the location of the patient by satellite navigation in the case of emergency call for medical and technical services, and present the structure and modes of the displayed information for mobile devices and Web-server. Doctor-patient interaction based on remote monitoring technology via mobile/ satellite/wired Internet is also shown. Рассматриваются вопросы технологии дистанционного on-line мониторинга состояния пациентов и параметров отечественного аппарата вспомогательного кровообращения АВК-Н. Показаны преимущества рассматриваемой технологии для повышения эффективности принципов персонифицированной медицины в диагностике и лечении пациентов с АВК-Н в послеоперационном периоде. Продемонстрированы возможности технологии для автоматического определения местоположения пациента по данным спутниковой навигации в задаче экстренного вызова медицинских и технических служб. Представлена структура отображаемой информации и режимы ее визуализации на устройствах мобильной связи и Web-сервере. Показана организация взаимодействия лечащего врача с пациентом на базе технологии дистанционного мониторинга по каналам мобильного/спутникового/проводного Internet

REMOTE MONITORING OF PATIENTS WITH LONG-TERM MECHATRONIC CIRCULATORY SUPPORT SYSTEM

The article describes the technology of remote patient monitoring and the parameters of circulatory assist device AVK-N as well as the advantages of said technology to improve the efficiency of personalized medicine in diagnosis and treatment of patients with AVK-N in the postoperative period. Authors show the capabilities of remote monitoring technology to determine the location of the patient by satellite navigation in the case of emergency call for medical and technical services, and present the structure and modes of the displayed information for mobile devices and Web-server. Doctor-patient interaction based on remote monitoring technology via mobile/ satellite/wired Internet is also shown

INDIRECT METHODS OF MEASURING FLОW RATE AND PRESSURE DROP OF ROTARY BLOOD PUMPS

The article describes complex software to calculate the main parameters of the axial pump (pressure drop and flow rate) on the basis of an analysis of its technical characteristics (current consumption and pump speed). It is shown that the calculated value of pressure drop and flow rate throughout the range of operating loads and pump speeds is different from the measured one by no more than 10%. It is shown that this software package may be included in the control system of axial pump

Economic practicability of the implementation of the mine refrigeration technology for normalization of thermal conditions

The purpose of this research is to substantiate a technical solution for improving the working conditions for the thermal factor in the extraction of oil by the thermoshaft method using the mine refrigeration technology. The review of manufacturers and technical characteristics of refrigeration technology in Russia, CIS countries and Western Europe was conducted. It was shown that the use of a water cooling machine in the mine air conditioning system will reduce the air temperature in the oil production gallery to the required values and will allow to abandon the long-term construction of a surface stationary refrigeration station. Normalization of the thermal regime reduces the costs of benefits and compensation for work in harmful labor conditions and improves the quality of service of production wells by operators. The practical significance is that the proposed project for the introduction of air conditioning has a high level of profitability, and its payoff will occur in the second year of operation