Application of NIR laser pulses with microsecond duration for surgery
Polina V. Aleksandrova1, Irina N. Dolganova2, Arsen K. Zotov1, Anna I. Alekseeva3, Kirill B. Dolganov1, Kirill I. Zaytsev1, David G. Kochiev1;
1 - Prokhorov General Physics Institute of the Russian Academy of Science, Moscow, Russia;
2 - Osipyan Institute of Solid State Physics of the Russian Academy of Science, Chernogolovka, Russia;
3 - Avtsyn Research Institute of Human Morphology of Federal State Budgetary Scientific Institution “Petrovsky National Research Centre of Surgery”, Moscow, Russia
Abstract
Nowadays laser treatment techniques are used in various clinical procedures, most of which are minimally invasive surgical interventions using endoscopic and laparoscopic technologies. Using lasers allows for surgical procedures with minimal hemorrhage and trauma. These characteristics are the main distinguishing feature of surgical laser, making them a universal surgical tool and treatment.
The distinctive feature of pulse laser interaction with a substance is the variation in the physics of the processes that occur, manifested in the rapid change of the main physical mechanisms when transitioning to pulses of short duration. The surgical effect of pulse lasers in clinical use is determined by a combination of radiation parameters such as wavelength, energy density and pulse duration. The duration of laser pulse is one of the main factors determining the effect on biological tissue, allowing to separate thermal and non-thermal effects. Using shorter pulses, it is possible to implement such types of interaction with biological tissues as ablation, photodegradation and others.
In the present work, microsecond laser sources with 1.06 and 1.08 μm wavelengths were used to analyze physical processes occurring in the area of exposure to laser radiation and, as a consequence, to assess the benefits of using such lasers for medical purposes. The results demonstrated successful coagulation and dissection of living tissues.
This work was supported by a grant of the Ministry of Science and Higher Education of the Russian Federation (075-15-2022-315) for the organization and development of a World-class research center “Photonics”.
Speaker
Polina V. Aleksandrova
Prokhorov General Physics Institute of the Russian Academy of Science, Moscow, Russia,
Russia
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