| 摘要 |
A distribution valve for nasal spray allowing to distribute a drug inside the nasal cavities in a uniform and repeatable way is described. The distribution valve has a section of elliptical or oval shape, corresponding to the shape of the nostril and it has a distribution nozzle having elliptical or oval shape (or slot shape) in order to obtain a more uniform distribution of the medicament on the inner mucosa of the nasal cavity.
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