Study of laser induced underwater shock waves and cavitation for medical applications: Visualization in a transparent optical tube

Abstract For applying shock waves to precise medical procedures like neurosurgery, a reliable generation of micro shock waves is required. Such sensitive applications make limits on usage of conventional underwater shock wave sources like Extracoporeal Shock Waves ESW [1] or micro explosives [2]. In the present study a Q-switched Ho:YAG laser and an optical fiber are used. Advantages of this method over previous shock wave sources are two order of magnitude reduction in focusing area if compared with ESW and elimination of product gases of micro explosives. Nakahara and Nagayama [3] studied underwater shock waves emanated from surface of an optical fiber by pulse Nd:YAG laser input using shadowgraph technique. Their qualitative study limited to visualization of shock waves at its early stage. The present research aims to clarify quantitatively process of the shock wave generation by direct laser beam irradiation through optical fibers, growth and behavior of generated cavities, and structure of heat induced flow in front of the optical fiber.

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Coatings for Mitigating the Effects of Underwater Shock Waves on Structures

Blast Mitigation Strategies in Marine Composite and Sandwich Structures - Springer Transactions in Civil and Environmental Engineering ◽

10.1007/978-981-10-7170-6_17 ◽

2017 ◽

pp. 321-335 ◽

Cited By ~ 1

Author(s):

Serge Abrate

Keyword(s):

Shock Waves ◽

Underwater Shock

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Relaxation Effects in the Propagation of Underwater Shock Waves

Cavitation and Inhomogeneities in Underwater Acoustics ◽

10.1007/978-3-642-51070-0_25 ◽

1980 ◽

pp. 177-183

Author(s):

T. N. Fedoseeva ◽

F. E. Fridman ◽

V. N. Goldberg ◽

I. G. Zarnitsina

Keyword(s):

Shock Waves ◽

Relaxation Effects ◽

Underwater Shock

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Electrical wire explosion as a source of underwater shock waves

Journal of Physics D Applied Physics ◽

10.1088/1361-6463/ac10a3 ◽

2021 ◽

Author(s):

Huantong Shi ◽

Guofeng Yin ◽

Xingwen Li ◽

Jian Wu ◽

Anthony B Murphy ◽

...

Keyword(s):

Shock Waves ◽

Wire Explosion ◽

Electrical Wire ◽

Electrical Wire Explosion ◽

Underwater Shock

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Strength and Frequency of Underwater Shock Waves Related to Sterilization Effects on a Marine Bacterium

31st International Symposium on Shock Waves 2 ◽

10.1007/978-3-319-91017-8_1 ◽

2019 ◽

pp. 1-8

Author(s):

J. Wang ◽

A. Abe ◽

N. Ito ◽

K. Nishibayashi

Keyword(s):

Shock Waves ◽

Marine Bacterium ◽

Underwater Shock

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Fundamental study of sterilization effects on marine Vibrio sp. in a cylindrical water chamber with supply of only underwater shock waves

Ultrasonics Sonochemistry ◽

10.1016/j.ultsonch.2017.11.047 ◽

2018 ◽

Vol 42 ◽

pp. 541-550 ◽

Cited By ~ 5

Author(s):

Jingzhu Wang ◽

Akihisa Abe ◽

Yiwei Wang ◽

Chenguang Huang

Keyword(s):

Shock Waves ◽

Fundamental Study ◽

Water Chamber ◽

Marine Vibrio ◽

Underwater Shock ◽

Marine Vibrio Sp

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Transient Response of Submerged Elastic Structures Subject to Underwater Shock Waves

ASME 2010 7th International Symposium on Fluid-Structure Interactions, Flow-Sound Interactions, and Flow-Induced Vibration and Noise: Volume 3, Parts A and B ◽

10.1115/fedsm-icnmm2010-31006 ◽

2010 ◽

Author(s):

Zhanke Liu ◽

Yin L. Young

Keyword(s):

Shock Waves ◽

Case Studies ◽

Transient Response ◽

Elastic Parameter ◽

Elastic Structures ◽

Inertial Parameter ◽

Dimensional Parameters ◽

Underwater Shock

This paper presents the transient response of submerged elastic structures subject to underwater shock waves. Two fundamental effects are investigated, namely, the inertial and elastic effects, characterized by two non-dimensional parameters, namely, the inertial parameter M and the elastic parameter K. Case studies are provided with physical and mathematical interpretations of the results.

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