| 摘要 |
The device has a spray nozzle (16) with an inner chamber receiving a non-gaseous fluid product e.g. pharmaceutical product, under pressure and delimited towards outer side by a perforated front wall (17b). A dispensing device is mechanically actuated by a push-button (9), and transfers the product from a reservoir to the inner chamber of the nozzle. The front wall has a set of calibrated holes (22), where diameter of each hole ranges between 1 and 100 micrometer and does not differ from a mean of the diameters of the other holes by above 20 percentages. The front wall is made of a material chosen from silicon, glass, metal, alloy, ceramics and polymers, and is made in the form of a complex including a polymer layer chosen form polyethylene and polypropylene, polyester layer and metallic material. |
