| 摘要 |
PROBLEM TO BE SOLVED: To block resupply of CO<SB>2</SB>and to speedily reduce the concentration of anesthetics in inhalation gases without requiring another bypass tube. SOLUTION: A filter (24) is movable between gas passages (4, 6), so that divisions (24a; 24b) of the filter are successively exposed inside the respective passages (4, 6). COPYRIGHT: (C)2004,JPO&NCIPI
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