Affiliations: [a] Department of Biomedical Engineering, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Kiev, Ukraine | [b] Department of General Physics and Solid State Physics, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Kiev, Ukraine | [c] E.O. Paton Electric Welding Institute of the National Academy of Sciences of Ukraine, Kiev, Ukraine | [d] Department of Mechanics and Material Engineering, Vilnius Gediminas Technical University, Vilnius, Lithuania | [e] Department of Biomechanics Engineering, Vilnius Gediminas Technical University, Vilnius, Lithuania
Correspondence:
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Corresponding author: Andžela Šešok, Department of Biomechanics Engineering, Vilnius Gediminas Technical University, J. Basanavičiaus str. 28, Vilnius, Lithuania. E-mail: andzela.sesok@vgtu.lt.
Abstract: BACKGROUND: Monitoring of temperature changes and accurately determining the moment of electrode removal during open heart operations is not well recognized. OBJECTIVE: We investigated the temperature fields distribution in the biological tissues affected by electrosurgery upon use of an infrared thermograph. METHODS: The dynamics of temperature distribution in the tissue was registered by the thermal imaging camera FLIR i7. Measurement of the temperature between electrode couples was carried out for two operation modes: coagulation (100% power) and coagulation (50% power). RESULTS: The most important result of the applied method of temperature monitoring is a determination of the moment for electrodes removal that ensures the avoidance of carbonization of the cardiac tissues during their ablation. CONCLUSIONS: Temperature monitoring for connection of soft live biological tissues by welding allows the power to be fed in the amount sufficient for a formation of continuous ablation of the myocardium tissue.
Keywords: IR-imaging, myocardium, electrosurgery, HF welding, ablation, control
