Development of expectorant assistive system induced by sound resonance on 3D respiratory tract model

• Project/Area Number: 16K12947
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Rehabilitation science/Welfare engineering
• Research Institution: Tohoku University
• Principal Investigator: Masayoshi Ichie 東北大学, 医学系研究科, 教授 (20193427)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000); Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2016: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
• Keywords: 音響 / 共鳴 / 気道 / 排痰 / Cymatics

Outline of Final Research Achievements

The purpose of this study is to make clear that sound resonance on respiratory tract may act assistive for expectorant.
The 3D training model of bronchoscope and laser doppler vibrometer were used for the experiment. Sound resonance phenomena were observed on all of the respiratory tract. Resonance frequency was different at each point and changed low to high from proximal to distal.
This shows possibility to develop expectorant assistive system induced by sound resonance.