DYNAMICS OF CHANGES IN PARAMETERS OF LASER RADIATION IN BIOLOGICAL FABRICS

Abstract

In modern medical instrumentation, a rather large niche is occupied by devices whose action is based on the influence of laser radiation. However, all the indicators of the therapeutic action of laser radiation of the body, organs and tissues are not sufficiently studied. Due to the individual nature of the sensitivity to the physiotherapeutic effect, in order to guarantee a positive therapeutic effect, it is necessary to control the parameters of LV in passing through the biological tissue. This article presents the results of experiments aimed at solving this problem.A study of the effect of laser radiation (LR) on biological tissues at variable power and LR generation regimes was made. The dependences of the change in the LR power that passed through the object under study from the LR power at the fiber output are determined. Differences in the passage of LR through the studied biological tissues under modulated and unmodulated modes of influence were established. Parameters LR that passed through the investigated object under the influence of LR of different wavelengths have been studied. The dependence of the change in the temperature of a biological object with an unmodulated mode of influence at low power LR was verified. Several possible ways of controlling changes in LR parameters during passage through biological tissues have been studied: control of the power of the LR directly on the surface of the impact and the measurement of the temperature of the biological object.