Transurethral ureteral lithotripsy (TUL) is a treatment that breaks stones by irradiating a pulsed laser through an optical fiber. Heat and impulsive force of the laser may affect nearby tissues during treatment. A bubble induced by the pulsed laser plays an important role in laser lithotripsy. It is important to understand effects of the bubble on the surroundings by simulating treatment in a narrow space such as in a ureter. In this study, we observe behaviors of the bubble in the narrow space inside a soft material simulating under in vivo condition. The bubble formed under various laser irradiation conditions exhibits characteristic behavior, and the surrounding elastic wall is compressed and bulged when the bubble grows and collapses. In the case of bubble formed near the elastic wall, the bubble contacts with the elastic wall during growth, and severe large deformation of the elastic wall is observed at bubble collapse. According to the temperature measurement, a temperature rise of 25℃？- 30℃？occurs in the area where the bubbles are in contact. From the above, by presenting the deformation of the elastic wall and temperature increase, we can show useful information to improve the safety for treatment at narrow space.
References
[1]
Ikeda, T., Yoshizawa, S., Tosaki, M., Allen, J.S., Takagi, S., Ohta, N., Kitamura, T. and Matsumoto, Y. (2006) Cloud Cavitation Control for Lithotripsy Using High Intensity Focused Ultrasound. Ultrasound in Medicine and Biology, 32, 1383-1397.
https://doi.org/10.1016/j.ultrasmedbio.2006.05.010
[2]
Maxwell, A.D., Cunitz, B.W., Kreider, W., Sapozhnikov, O.A., His, R.S., Harper, J.D., Bailey, M.R. and Sorensen, M.D. (2015) Fragmentation of Urinary Calculi in Vitro by Burst Wave Lithotripsy. The Journal of Urology, 193, 338-344.
https://doi.org/10.1016/j.juro.2014.08.009
[3]
Maeda, K., Maxwell, A.D., Kreider, W., Colonius, T. and Bailey, M.R. (2018) Investigation of the Energy Shielding of Kidney Stones by Cavitation Bubble Clouds during Burst Wave Lithotripsy. Proceedings of 10th International Symposium on Cavitation, Baltimore, 14-16 May 2018, 626-630.
https://doi.org/10.1115/1.861851_ch119
Teichman, J.M.H., Rao, R.D., Glickman, R.D. and Harris, J.M. (1998) Holmium:YAG Percutaneous Nephrolithotomy: The Laser Incident Angle Matters. The Journal of Urology, 159, 690-694. https://doi.org/10.1016/S0022-5347(01)63701-7
[6]
Schafer, S.A., Durville, F.M., Jassemnejad, B., Bartels, K.E. and Powell, R.C. (1994) Mechanisms of Biliary Stone Fragmentation Using the Ho:YAG Laser. IEEE Transaction on Biomedical Engineering, 41, 276-283. https://doi.org/10.1109/10.284946
[7]
Zhong, P., Tong, H.L., Cocks, F.H., Pearle, M.S. and Preminger, G.M. (1998) Transient Cavitation and Acoustic Emission Produced by Different Laser Lithotripsy. The Journal of Endourology, 12, 371-379. https://doi.org/10.1089/end.1998.12.371
[8]
Chan, K.F., Pfefer, T.J., Teichman, J.M.H. and Welch, A.J. (2001) A Perspective on Laser Lithotripsy: The Fragmentation Process. Journal of Endourology, 15, 257-273.
https://doi.org/10.1089/089277901750161737
[9]
Vassar, G.J., Chan, K.F., Teichman, J.M.H., Glickman, R.D., Weintraub, S.T., Pfefer, T.J. and Welch, A.J. (1999) Holmium YAG Lithotripsy Photothermal Mechanism. The Journal of Endourology, 13, 181-190. https://doi.org/10.1089/end.1999.13.181
[10]
Frenz, M., Konz, F., Pratisto, H., Weber, H.P., Silenok, A.S. and Konov, V.I. (1998) Starting Mechanisms and Dynamics of Bubble Formation Induced by a Ho Yttrium Aluminum Garnet Laser in Water. Journal of Applied Physics, 84, 5905-5913.
https://doi.org/10.1063/1.368906
[11]
Lauterborn, W. and Bolle, H. (1975) Experimental Investigations of Cavitation-Bubble Collapse in the Neighborhood of a Solid Boundary. Journal of Fluid Mechanics, 72, 391-399. https://doi.org/10.1017/S0022112075003448
[12]
Vogel, A., Lauterborn, W. and Timm, R. (1989) Optical and Acoustic Investigation of the Dynamics of Laser-Produced Cavitation Bubbles near a Solid Boundary. Journal of Fluid Mechanics, 206, 299-338.
https://doi.org/10.1017/S0022112089002314
[13]
Tomita, Y. and Shima, A. (1986) Mechanisms of Impulsive Pressure Generation and Damage Pit Formation by Bubble Collapse. Journal of Fluid Mechanics, 169, 535-564. https://doi.org/10.1017/S0022112086000745
[14]
Brujan, E.A., Nahen, K., Schmidt, P. and Vogel, A. (2001) Dynamics of Laser-Induced Cavitation Bubbles near an Elastic Boundary. Journal of Fluid Mechanics, 433, 251-281. https://doi.org/10.1017/S0022112000003347
[15]
Brujan, E.A., Nahen, K., Schmidt, P. and Vogel, A. (2001) Dynamics of Laser-Induced Cavitation Bubbles near Elastic Boundaries: Influence of the Elastic Modulus. Journal of Fluid Mechanics, 433, 283-314.
https://doi.org/10.1017/S0022112000003335
[16]
Kobayashi, K., Kodama, T. and Takahira, H. (2011) Shock Wave-Bubble Interaction near Soft and Rigid Boundaries during Lithotripsy: Numerical Analysis by the Improved Ghost Fluid Method. Physics in Medicine and Biology, 56, 6421-6440.
https://doi.org/10.1088/0031-9155/56/19/016
[17]
Kodama, T., Tomita, Y. and Shima, A. (1993) Interaction of a Bubble Attached to a Gelatine Wall with a Shock Wave: A Study of Tissue Damage Caused by Bubble Collapse. Transactions of the Japan Society of Mechanical Engineers. Series B, 59, 1431-1435. https://doi.org/10.1299/kikaib.59.1431
[18]
Blake, J.R. and Gibson, D.C. (1981) Growth and Collapse of a Vapour Cavity near a Free Surface. Journal of Fluid Mechanics, 111, 123-140.
https://doi.org/10.1017/S0022112081002322
[19]
Chahine, G.L. (1977) Interaction between an Oscillating Bubble and a Free Surface. Journal of Fluid Engineering, 99, 709-716. https://doi.org/10.1115/1.3448889
[20]
Ogasawara, T., Ito, S. and Takahira, H. (2018) The Growth and Collapse of a Bubble between Parallel Flat Free Surfaces. Proceedings of 10th International Symposium on Cavitation, Baltimore, 14-16 May 2018, 1007-1012.
https://doi.org/10.1115/1.861851_ch192
[21]
Ogasawara, T., Tsubota, N., Seki, H., Shigaki, Y. and Takahira, H. (2015) Experimental and Numerical Investigations of the Bubble Collapse at the Center between Rigid Walls. Journal of Physics. Conference Series, 656, Article ID: 012031.
https://iopscience.iop.org/article/10.1088/1742-6596/656/1/012031
https://doi.org/10.1088/1742-6596/656/1/012031
[22]
Sugimoto, Y., Yamanishi, Y., Sato, K. and Moriyama, M. (2015) Measurement of Bubble Behavior and Impact on Solid Wall Induced by Fiber-Holmium:YAG Laser. Journal of Flow Control, Measurement & Visualization, 3, 135-143.
https://doi.org/10.4236/jfcmv.2015.34013
[23]
Sugimoto, Y., Nagata, D. and Sato, K. (2017) Fiber-Type-Laser Induced Bubble Behaviors in Narrow Space with a Soft Wall. Proceedings of 10th International Symposium on Measurement Techniques for Multiphase Flow, Hong Kong, ISMTMF-R001-046.
[24]
Sugimoto, Y., Nagata, D. and Sato, K. (2018) Behavior of Bubble Induced by Fiber-Type Laser for TUL near Soft Wall with Deformability. Proceedings of 10th International Symposium on Cavitation, Baltimore, 14-16 May 2018, 135-139.
https://doi.org/10.1115/1.861851_ch27
[25]
Chan, K.F., Pfefer, T.J., Hammer, D.X., Jansen, E.D., Frenz, M. and Welch, A.J. (1998) Fluorescence-Based Temperature Measurement in Laser-Induced Vapor Bubbles. Proceedings of SPIE—The International Society for Optical Engineering, 3254, 276-286. https://doi.org/10.1117/12.308174
