Measurement of Bubble Behavior and Impact on Solid Wall Induced by Fiber-Holmium:YAG Laser

• 作者: Keiichi Sato Manabu Moriyama Yasuhiro Sugimoto Yoshiaki Yamanishi
• 来源期刊: 流量控制、测量及可视化(英文)
• 学科: 医学
• 关键词: LASER-INDUCED CAVITATION BUBBLE BUBBLE COLLAPSE Shock Waves TRANSURETHRAL Ureterolithotripsy
• 年，卷（期）: 2015,（4）
• 页码范围: 135-143
• 页数: 9页
• 分类号: R73

摘要

The holmium:YAG (Ho:YAG) laser is effectively used for transurethral ureterolithotripsy. The laser is applied through an optical fiber in a ureter. A bubble is formed by a laser irradiated from the fiber tip and a calculus is crushed by the impact of the bubble collapse. In this study, we observed the characteristic behavior of a bubble induced by a Ho:YAG laser near a wall surface, using a high-speed video camera. Furthermore, we measured the forces of a bubble collapse using an impulsive force sensor. As a result, we showed characteristic bubble collapse behavior and impulsive force distribution for various fiber placement conditions.