| abstract |
(57) [Summary] [Problem] To supply oxygen in an amount appropriate for a user to actually inspire, whereby sufficient oxygenation can be obtained even during exertion, and wasteful release of oxygen can be reduced. An apparatus for performing the above is provided. SOLUTION: Recognizing means for recognizing an inspiratory phase start part and an expiratory phase start part, and based on a recognition result of the recognizing means, calculates an open time of an automatic opening / closing valve means and performs supply control. Gas supply device. |