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Article in Japanese
Abstract
Original Article
A study of inspiratory resistance of dry powder inhaler for bronchodilator agents
Shigeaki Sudaa Rio Konnoa Hajime Kurosawab,c Gen Tamurad
aChest Institute of Technology, Chest M.I., Inc.
bCenter for Environmental Conservation and Research Safety, Tohoku University
cDepartment of Occupational Health, Tohoku University Graduate School of Medicine
dAirway Institute in Sendai, Co. Ltd.
ABSTRACT
Because dry powder inhalers (DPI) aerosolize agents by means of inspiration of the patients themselves, the inspiratory resistance of DPI is an important factor for increasing inhalation efficiency. Therefore we calculated the inspiratory resistance of DPI devices of bronchodilator agents for treating chronic obstructive pulmonary disease. In all DPI devices, inspiratory resistance increased with the increasing flow rate. Thus it is suggested that we should instruct patients to inhaler DPI based on inspiratory resistance of the DPI.
KEYWORDS
Chronic obstructive pulmonary disease Bronchodilator agents Dry powder inhalers Inspiratory resistance Inhalation technique
Received 29 Mar 2016 ／ Accepted 5 Jul 2016
AJRS, 5(6): 285-289, 2016
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