17-06-2021 дата публикации
Номер: US20210178090A1
Принадлежит:
A mist inhaler device () for generating a mist for inhalation by a user. The device comprises a mist generator device () and a driver device (). The driver device () is configured to drive the mist generator device () at an optimum frequency to maximise the efficiency of mist generation by the mist generator device (). 1. A mist inhaler device for generating a mist for inhalation by a user , the device comprising: a mist generator housing which is elongate and comprises an air inlet port and a mist outlet port;', 'a liquid chamber provided within the mist generator housing, the liquid chamber for containing a liquid to be atomised;', 'a sonication chamber provided within the mist generator housing;', 'a capillary element extending between the liquid chamber and the sonication chamber such that a first portion of the capillary element is within the liquid chamber and a second portion of the capillary element is within the sonication chamber;', 'an ultrasonic transducer having a generally planar atomisation surface which is provided within the sonication chamber, the ultrasonic transducer being mounted within the mist generator housing such that the plane of the atomisation surface is substantially parallel with a longitudinal length of the mist generator housing, wherein part of the second portion of the capillary element is superimposed on part of the atomisation surface, and wherein the ultrasonic transducer is configured to vibrate the atomisation surface to atomise a liquid carried by the second portion of the capillary element to generate a mist comprising the atomised liquid and air within the sonication chamber; and', 'an airflow arrangement which provides an air flow path between the air inlet port, the sonication chamber and the air outlet port such that a user drawing on the mist outlet port draws air through the inlet port, through the sonication chamber and out through the mist outlet port, with the mist generated in the sonication chamber being carried ...
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