This text is dedicated to Professors, professionals of Electromedicine and all the innovators of this branch who with so much effort and dedication find dissimilar solutions to each technical failure. It is intended for technicians and engineers working in this area of scientific and technical knowledge and students of Electromedicine. Human activity is the main source of creation and development of the individual. Cognitive, evaluative, communicative and practical activity has allowed people to penetrate into the essence of objects, phenomena and processes, therefore, the source of knowledge is the external world that surrounds man, acts on him and provokes sensations, perceptions, representations, concepts, ideas. Only in the development of human activity does man acquire and develop his knowledge.