A Miniaturized Shock-Wave Device for Mounting on Forceps
スポンサーリンク
概要
- 論文の詳細を見る
To provide shock-wave exposure with high accuracy and widen the application area of shock-wave therapy, a miniaturized shock-wave device for endoscopic surgery was developed. The shock-wave device applies an electrohydraulic mechanism for generating shock waves in light of device miniaturization and suitability for standard clinical practice. The outer diameter of the shock-wave generator is 11 mm, so it can be inserted in the body through a trocar used in endoscopic surgery or a natural orifice in the case of natural-orifice translumenal endoscopic surgery (NOTES). The distance between the shock-wave focal point and the front of the device is 10 mm. The focused shock wave was observed at the focal point by visualization with the schlieren imaging technique. The pressure at the focal point was measured, and the measurement revealed that the device can produce a peak pressure of 2.32±0.81 MPa at 2-kV discharge voltage, 3.69±1.06 MPa at 3 kV, 5.67±2.44 MPa at 4 kV, and 7.27±2.33 MPa at 5 kV.
著者
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Arafune Tatsuhiko
Departmenl of Precision Machinery Engineering, Faculty of Engineering, The University of Tokyo
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Tsukamoto Akira
Department Of Biology Faculty Of Science Ochanomizu University
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Kobayashi Etsuko
Department Of Experimental Pathology Cancer Institute
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Sakuma Ichiro
Department Of Cardiovascular Medicine Graduate School Of Medicine Hokkaido University
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Liao Hongen
Department Of Precision Engineering The University Of Tokyo
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Nakagawa Keiichi
Department Of Cardiovascular Science And Medicine
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Ushida Takashi
Center For Disease Biology And Integrative Medicine School Of Medicine The University Of Tokyo
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SAKUMA Ichiro
Department of Precision Engineering, Graduate School of Engineering, The University of Tokyo
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TSUKAMOTO Akira
Department of Applied Physics, National Defense Academy
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ARAFUNE Tatsuhiko
Department of Precision Engineering, Graduate School of Engineering, The University of Tokyo
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KOBAYASHI Etsuko
Department of Precision Engineering, Graduate School of Engineering, The University of Tokyo
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