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Kvantovaya Elektronika, 2019, Volume 49, Number 4, Pages 404–408 (Mi qe17011)  

This article is cited in 3 scientific papers (total in 3 papers)

Laser medicine

Effect of laser-induced hydrodynamic dissection of biotissue in operative urology

V. P. Minaeva, N. V. Minaevb*, V. I. Yusupovb, A. M. Dymovc, N. I. Sorokinc, V. Yu. Lekarevc, A. Z. Vinarovc, L. M. Rapoportc

a IRE-Polus Research and Technology Association, Fryazino, Moscow Region
b Federal Research Centre 'Crystallography and Photonics', Russian Academy of Sciences, Institute of Photonic Technologies, Moscow, Troitsk
c Institute of Urology and Human Reproductive Health, I.M.Sechenov First Moscow State Medical University

Abstract: We study the effects that occur in a physiological solution when laser radiation with a wavelength of 1.94 μm and a power of 60–120 W is delivered into it through an optical fibre. It is shown that as a result of the boiling of the liquid near the fibre end, a laserinduced hydrodynamic effect can be realised, in which a two-phase jet is formed, consisting of heated water and vapour-gas bubbles propagating at a speed of ~1 m s-1. This jet can be used in medicine for dissecting biological tissues when removing a bladder tumour as a single unit, for dissecting the stricture of the ureter or urethra, and for enucleation of the prostate adenoma (hyperplasia). The use of this effect allows pathological tissue to be accurately separated from the underlying layer, virtually eliminating carbonisation and the formation of viable tumour fragments, which can lead to tumour dissemination. The characteristics of a laser-induced jet, which determine the nature of its effect on biological tissues, are studied experimentally, and the optimal regimes of laser irradiation are found. It is shown that the jet parameters most effective for hydrodynamic dissection of biological tissue are implemented using a radiation power of 120 W at a distance of ~3 mm from the fibre end.

Keywords: fibre lasers, laser-induced superintense boiling, twophase jet, biotissue dissection, laser radiation in urology, laser enucleation of prostate adenoma, laser removal of bladder cancer.

Funding Agency Grant Number
Russian Foundation for Basic Research 16-02-00743
17-02-00832
Ministry of Education and Science of the Russian Federation

* Author to whom correspondence should be addressed

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English version:
Quantum Electronics, 2019, 49:4, 404–408

Bibliographic databases:

Received: 03.10.2018
Revised: 06.12.2018

Citation: V. P. Minaev, N. V. Minaev, V. I. Yusupov, A. M. Dymov, N. I. Sorokin, V. Yu. Lekarev, A. Z. Vinarov, L. M. Rapoport, “Effect of laser-induced hydrodynamic dissection of biotissue in operative urology”, Kvantovaya Elektronika, 49:4 (2019), 404–408 [Quantum Electron., 49:4 (2019), 404–408]

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  • http://mi.mathnet.ru/eng/qe/v49/i4/p404

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    Citing articles on Google Scholar: Russian citations, English citations
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    This publication is cited in the following articles:
    1. Quantum Electron., 50:8 (2020), 793–800  mathnet  crossref  isi  elib
    2. V. M. Chudnovskii, A. A. Levin, I V. Yusupov , M. A. Guzev, A. A. Chernov, Int. J. Heat Mass Transf., 150 (2020), 119286  crossref  isi  scopus
    3. V R. Fursenko , V. M. Chudnovskii, S. S. Minaev, J. Okajima, Int. J. Heat Mass Transf., 163 (2020), 120420  crossref  isi  scopus
  • Квантовая электроника Quantum Electronics
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