| 摘要 |
The inhalator proposed has a to which is fitted a special mouthpiece covered by a removable protective cap. Disposed inside the casing are a slide valve guide rail, a metering slide valve a closure, a slide, a funnel, a counter, a valve cover and a valve guide. When the protective cap is pulled off, the metering of the powder is triggered and a dose held in the dose cavity is conveyed by the metering slide valve to the mouthpiece. Only when a given minimum inhalation intensity is produced is the closure displaced by the aspirated valve cover, thus releasing the dose so that it can be inhaled. When the inhalator is used with an electronic module and a controllable nozzle, all data relevant to the inhalation can be determined and the flow conditions controlled. |
