FIELD: medicine.
SUBSTANCE: method involves applying air cutoff plate usable for disaggregating and dispersing fine drug powder in air. Force making air suck through nozzle causes drug powder doses disaggregate and disperse in air jet running through the nozzle. Gradual disaggregating and dispersing takes place due to nozzle and dose moving relative to each other. Powder is sedimented over sublayer taking area greater than nozzle outlet opening area in preferential case. Relative movement starts concurrently with nozzle gradually crossing powder flow. Air flow entering inlet opening at high speed, produces required shearing stress and inertial force power arising due to passing air blowing against dose area boundary in its frontal point.
EFFECT: improved drug powder dose spraying mechanism.
12 cl, 3 tbl
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|---|---|---|---|
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