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Comparison of diode laser in soft tissue surgery using continuous wave and pulsed modes in vitro

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Abstract

In this study, the interaction between diode laser radiation and chicken soft tissue was studied in vitro by a high-speed digital video camera. We used a diode laser with a wavelength of (980 ± 10) nm and average power of 10 W. The diode laser was operated in continuous wave (CW) and pulsed modes. In CW mode, the average laser radiation power was 10 W; in pulsed mode, the average laser radiation power was 10 W and the peak power was 20 W. Diode laser radiation was delivered to soft tissue (chicken meat) using a quartz optical fiber with either a clear distal end (clear tip) or a distal end containing an optothermal converter (hot tip). Application of the diode laser in pulsed mode resulted in crater depths and areas of collateral damage in soft tissue about 1.6 times greater than those observed in CW mode at treatment with the clear tip. Significant differences in the crater depth and collateral damage width of chicken meat were not found after hot-tip treatment with the diode laser in CW and pulsed modes. Soft tissue treated with the hot tip showed crater depths about 3.4 times greater than those observed after treatment with the clear tip. Hot tip treatment further resulted in collateral damage widths about 2.7 times lower than those obtained after treatment with the clear tip.

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Authors and Affiliations

  1. Saint-Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO University), Saint-Petersburg, 197101, Russia

    Andrey V. Belikov, Alexei V. Skrypnik & Ksenia V. Shatilova

Authors
  1. Andrey V. Belikov
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  2. Alexei V. Skrypnik
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  3. Ksenia V. Shatilova
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Correspondence to Ksenia V. Shatilova.

Additional information

Andrey V. Belikov graduated in 1990 from Saint-Petersburg Institute of Fine Mechanics and Optics (SPIFMO), specialty optics. His professional experience and positions: 1990–1993, post-graduate student of Quantum Electronics and Biomedical Optics Department of SPIFMO; 1993–2002, Ph.D., senior researcher of Quantum Electronics and Biomedical Optics Department of SPIFMO; 2002–2013, associate Professor of Laser Technique and Biomedical Optics Department of Saint-Petersburg State University of Information Technologies, Mechanics and Optics (SPb SU ITMO); 2013–2015, Professor of Laser Technique and Biomedical Optics Department of Saint-Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO University); 2015-present, Professor of Laser Technologies and Laser Technique Department of ITMO University.

His professional activities: 6 international projects (optics for medicine), more than 20 international congresses, 5 invited lectures. His research interests are biomedical optics, physics of interaction of light with materials. He has published more than 150 papers.

Alexei V. Skrypnik graduated in 1991 from Saint-Petersburg Institute of Fine Mechanics and Optics (SPIFMO), specialty optics. His professional experience and positions: 1991–1994, post-graduate student of Quantum Electronics and Biomedical Optics department of SPIFMO; 1994–2003, Ph.D., senior researcher of Quantum Electronics and Biomedical Optics department of SPIFMO; 2003–2015, associate Professor of Laser Technique and Biomedical Optics Department of Saint-Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO University); 2015-present, associate Professor of Laser Technologies and Laser Technique Department of ITMO University.

His professional activities: 3 international projects (optics for medicine), more than 18 international congresses. His research interests include biomedical optics, physics of interaction of light with materials, nanotechnologies. He has published more than 100 papers.

Ksenia V. Shatilova graduated in 2009 from Saint-Petersburg State University of Information Technologies, Mechanics and Optics (SPb SU ITMO), specialty laser technique and laser technologies. Her professional experience and positions: 2009–2014, post-graduate student and assistant of Laser Technique and Biomedical Optics Department of Saint-Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO University); 2014–2015, Ph.D., assistant Professor of Laser Technique and Biomedical Optics Department of ITMO University; 2015-present, assistant Professor of Laser Technologies and Laser Technique Department of ITMO University.

Her professional activities: 2 international projects (optics for medicine), more than 10 international congresses. Her research interests are biomedical optics, physics of interaction of light with materials, medical laser applications. Now, she has published more than 30 papers.

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Belikov, A.V., Skrypnik, A.V. & Shatilova, K.V. Comparison of diode laser in soft tissue surgery using continuous wave and pulsed modes in vitro . Front. Optoelectron. 8, 212–219 (2015). https://doi.org/10.1007/s12200-015-0517-8

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  • DOI: https://doi.org/10.1007/s12200-015-0517-8

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