Journal of Innovative Optical Health Sciences, 2016, 9 (5): 1650011, Published Online: Dec. 27, 2018  

The influence on biotissue laser resection of a strongly absorbing layer at the optical fiber tip

Author Affiliations
1 Institute of Biomedical Technologies,Nizhny Novgorod State Medical Academy,10/1 Minin and Pozharsky Sq., Nizhny Novgorod 603005, Russia
2 Lobachevsky State University of Nizhni Novgorod,23 Gagarin Avenue BLDG 2, Nizhny Novgorod 603950, Russia
3 Nizhny Novgorod State Medical Academy 10/1 Minin and Pozharsky Sq., Nizhny Novgorod 603005, Russia
4 Institute of Applied Physics, Russian Academy of Sciences 46 Ul'yanov Street, Nizhny Novgorod 603950, Russia
5 Institute on Laser and Information Technologies Russian Academy of Sciences 2 Pionerskaya St., Troitsk 142092, Russia
Abstract
In this paper, we consider a method of laser resection using the silica glass core from which the cladding layer has been removed as the cutting part of a laser scalpel. An absorbing layer coating the silica fiber tip markedly alters its biotissue cutting characteristics. The results of histological studies of skin after exposure to a laser scalpel with and without a strongly absorbing coating (SAC) at a wavelength of 0.97 μm show that resection using a coated scalpel is more sparing. When an uncoated scalpel was used, skin injury was more apparent in both its surface spread and the depth of structural damage, resulting in poorer tissue regeneration.

Daria Kuznetsova, Vadim Elagin, Maria Karabut, Maria Shakhova, Vladimir Bredikhin, Liudmila Snopova, Andrei Shakhov, Natalia Sapogova, Nikita Bityurin, Victor Bagratashvili, Vladislav Kamensky. The influence on biotissue laser resection of a strongly absorbing layer at the optical fiber tip[J]. Journal of Innovative Optical Health Sciences, 2016, 9(5): 1650011.

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