Development of the pressure variable controlled tidal expiratory flow monitoring device

2015 Fiscal Year Final Research Report

• Project/Area Number: 25461146
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Respiratory organ internal medicine
• Research Institution: Tohoku University
• Principal Investigator: Ogawa hiromasa 東北大学, 環境・安全推進センター, 准教授 (90361162)
• Co-Investigator(Kenkyū-buntansha): KUROSAWA Hajime 東北大学, 環境・安全推進センター, 教授 (60333788) ; IROKAWA Toshiya 東北大学, 環境・安全推進センター, 准教授 (70375179)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 呼吸機能 / 換気障害診断

Outline of Final Research Achievements

This aim is to develop a new cooperation-free simple measuring device as a substitute for spirometer.We have developed a new device to monitor the change in tidal expiratory flow by applying variable negative pressure at the mouth during tidal expiration.The tidal expiratory flow increased by increasing the negative pressure during tidal expiration. The reduction in increment of the tidal expiratory flow occurred in obstructive ventilatory impairment. The change in increment of the tidal expiratory flow by variable negative expiratory pressure was shown to be useful for detecting ventilatory impairments. This result suggests that this new cooperation-free simple measuring developed device, is a substitute for spirometer.

Free Research Field

呼吸器内科学