Snitsar Y. Development of static and dynamic equivalents of living tissues and methods of their application

Snitsar Ye.V. Development of static and dynamic equivalents of living tissues and their application methods. – Qualified scientific work with the rights of the manuscript. The dissertation on competition of a scientific degree of the doctor of philosophy on a speciality 163 – Biomedical engineering. – National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", MES of Ukraine, Kyiv 2024. Preparation was held in the Biomedical Engineering department of National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Ministry of Education and Science of Ukraine. The dissertation is dedicated to the solution of an actual scientific and applied problem - the development of static and dynamic equivalents of living tissues and the methodology of their application in the development and research of electrosurgical equipment. The paper substantiates the development of theoretical models of static and dynamic equivalents of living tissues, creating working models of static and dynamic electrical simulators of living tissues. The method of using an electrical static simulator of living tissues during diagnostic examinations of patients in the preoperative period has been developed. The method of using an electric dynamic simulator of living tissues at the initial stages of development and research of electrosurgical equipment has been developed. The conducted review and analysis of literary sources on the research topic formulates an understanding of the existence of problems in the development and research of electrosurgical equipment. The current stage of development of electrosurgical equipment is closely related to the urgent problems of determining the viability of body tissues and their suitability for the use of electrosurgical equipment in the process of surgical interventions, automation of welding processes, especially welding of pathologically changed living tissues and automation of the selection of welding modes. Currently, these problems are solved by conducting experimental preclinical studies on biological equivalents of living tissues and using laboratory animals. But this way leads to the appearance of new problems, which can lead to the lack of representativeness of the results; the impossibility or difficulty of determining the exact age of the animal from which the sample was obtained in relation to the age of a person; the necessity of using samples with certain pathological changes in the experiment, which cannot always be obtained from a domestic pig, including from the side of ethical aspects. The main content of the dissertation research is presented in four chapters, in which the main results of the dissertation are presented and substantiated.