| 摘要 |
The present invention prevents liquid droplets from colliding with each other and prevents the change of a liquid droplet size and the degeneration of medicinal solutions from occurring in the center portion where the flow rate of the airflow becomes the maximum inside an airflow path. Inside an inhalation flow path of a flow path mouthpiece unit having a mouthpiece at one end, a cylindrical structure is disposed, and the cross-section of the inhalation flow path is made ring-shaped. The surface of the structure is provided with a plurality of medicine ejection portions, and the medicinal liquids are supplied from a reservoir provided in the inside of the structure. Even when the plurality of medicine ejection portions is simultaneously driven, it can prevent the liquid droplets from colliding with each other to change the liquid droplet size and the like.
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