FIELD: medical engineering. SUBSTANCE: device has flow canal restricted with several surfaces and usable for delivering powder dose carried with air flow and sucked-in during inhalation by patient; dosing means for sending powder dose into the flow canal for being carried away with air flow. The device has means for removing powder accumulated on the flow canal surface next to dosing means. EFFECT: avoided powder accumulation on the flow canal surface. 45 cl, 19 dwg
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Authors
Dates
2003-04-10—Published
1998-03-13—Filed