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Information × Registration Number 0222U001722, 0119U100189 , R & D reports Title Scientific and technical principles of creation of devices for electric welding of biological tissues with direct current pulses popup.stage_title Head Bondarenko Oleksandr F., Кандидат технічних наук Registration Date 01-02-2022 Organization National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute" popup.description2 As a result of research work the actual problem of the development of principles of construction of new devices for welding of soft biological tissue is solved. The importance of this task is due to the importance of the field of application, which is soft tissue surgery, because the characteristics of the equipment in this case determine the success of surgical operations, which directly affects human health. In addition, the principles of construction of electric energy converters for butt welding in terms of ensuring high energy efficiency and accuracy of welding current generation have been developed. Recommendations for the choice of modes of contact welding of soft biological tissues depending on the specific welding conditions and medical and technical requirements for such equipment have been developed. Regularities of current distribution in medical instruments for welding of biological tissues are established, and their new constructions are developed. New and improved control methods and algorithms for contact welding of soft biological tissues are proposed, which provide high accuracy of welding pulse formation and are based on the use of several control channels for the most important parameters, such as changing electrical resistance and geometry of welded biological tissues, power of welding current in contact and others. Efficient and flexible modular circuit topologies for construction of basic units of welding devices and their mathematical models are offered. Electromagnetic processes are studied and conditions of stability of converters, and also rational parameters for its maintenance, are defined. The obtained new scientifically substantiated results together are essential for the development of power supplies for responsible welding. The results of research work are used in the educational process of the Department of Electronic Devices and Systems and the Department of Biomedical Engineering of Igor Sikorsky Kyiv Polytechnic Institute. Product Description popup.authors Verbytskyi Yevhen Dubko Andrii Zheliazkov Yehor Karbivska Tetiana Kozhushko Yuliia Laikova Liudmyla Lebediev Oleksii Lutsenko Ivan Nikitin Viktor Osipov Roman Petrykeiev Yevhen Safronov Pavlo Sydorets Volodymyr popup.nrat_date 2022-03-09 Close