A Miniaturized Shock-Wave Device for Mounting on Forceps

• NAKAGAWA Keiichi

  Department of Precision Engineering, Graduate School of Engineering, The University of Tokyo

• TSUKAMOTO Akira

  Department of Applied Physics, National Defense Academy

• ARAFUNE Tatsuhiko

  Department of Precision Engineering, Graduate School of Engineering, The University of Tokyo

• LIAO Hongen

  Department of Precision Engineering, Graduate School of Engineering, The University of Tokyo

• KOBAYASHI Etsuko

  Department of Precision Engineering, Graduate School of Engineering, The University of Tokyo

• USHIDA Takashi

  Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo Department of Mechanical Engineering, Graduate School of Engineering, The University of Tokyo

• SAKUMA Ichiro

  Department of Precision Engineering, Graduate School of Engineering, The University of Tokyo

抄録

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.

収録刊行物

• Journal of Biomechanical Science and Engineering

  Journal of Biomechanical Science and Engineering 8 (1), 17-26, 2013

  一般社団法人 日本機械学会

キーワード

• Underwater Shock Waves
• Minimally Invasive Surgery
• Forceps-Compatible Shock-Wave Device
• Endoscopic Surgery
• Electrohydraulic Shock-Wave Generator

詳細情報

• CRID: 1390001205261222784
• NII論文ID: 130003366809
• DOI: 10.1299/jbse.8.17
• ISSN: 18809863
• Web Site: https://www.jstage.jst.go.jp/article/jbse/8/1/8_17/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可