| 摘要 |
PROBLEM TO BE SOLVED: To improve safety and maintainability of an oxygen concentrator which introduces air and discharges highly-concentrated oxygen. SOLUTION: The oxygen concentrator 100 includes a cannula hook 140 and an enclosure 110. The cannula hook 140 has a pair of holding pieces 141a and 141b. The enclosure 110 has a shaft body 132 held by the holding pieces 141a and 141b, and the cannula hook 140 is turnably mounted on the shaft body 132. When the attitude of the cannula hook 140 is fixed in an open state with respect to the enclosure 110, the holding pieces 141a and 141b hold the shaft body 132 from the top and the bottom. The enclosure 110 has a rib 134 formed on the turning trajcetory of the cannula hook 140. When an excess load is applied on the cannula hook 140 fixed in an open state attitude, the rib 134 and the lower holding piece 141a engage to make the shaft body 132 open the holding pieces 141a and 141b using an engaging part 148 as a fulcrum. The cannula hook 140 is thus detached from the enclosure 110. COPYRIGHT: (C)2010,JPO&INPIT
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