| 摘要 |
The present invention prevents liquid droplets from colliding with each other and prevents changes in the liquid droplet size, and prevents degeneration of medicinal solutions from occurring in the center portion where the flow rate of the airflow is maximum inside the 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 medicine ejection portions, and the medicinal liquids are supplied from a reservoir provided inside the structure. Even when the medicine ejection portions are simultaneously driven, this structure prevents the liquid droplets from colliding with each other to change the liquid droplet size and the like.
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