Spirometer

A medical spirometer comprising a housing with a flow inlet and a flow outlet, and a measurement unit (MU) disposed in said housing, for measuring rate of total flow between said inlet and said outlet when a user exhales or inhales through said spirometer, said MU comprising a first and a second fluidic jet oscillators each having an inlet and an outlet defining straight flow direction used for measurement and an inoperative, reverse flow direction, and being adapted to generate oscillating flow characterized by an oscillating parameter dependent on rate of straight flow through the jet oscillator, and respective first and second transducers adapted to convert the oscillating parameter into an oscillating electric signal,

• wherein the fluidic jet oscillators are in fluid communication with said inlet and said outlet, such that when the user exhales, the first jet oscillator works in the straight flow while the second jet oscillator works in the reverse flow and vice-versa, the two transducers producing oscillating electric signals with different patterns associated with said straight flow and said reverse flow, and the spirometer further includes an electronic processor adapted to recognize whether the user inhales or exhales by said different patterns.

An inhaler-dispenser device comprising a housing adapted to accommodate a dispenser with medicine for inhaling, said housing having an inhaling passage with inlet air opening and outlet mouthpiece such that, upon inhaling, an airflow runs from said inlet to said outlet, the housing further having a delivery channel for delivery of said medicine into said airflow, wherein an outlet end of said delivery channel is such disposed relative to the inhaling passage that, at inhale, a dose of said medicine is delivered to a central core of said airflow in the passage.

An inhaler-dispenser device comprising a housing adapted to accommodate a dispenser with medicine for inhaling, said housing further having an inhaling passage with inlet air opening and outlet mouthpiece such that, upon inhaling, an airflow runs from said inlet to said outlet, the housing further having a delivery channel for delivery of said medicine into said airflow, wherein said inhaling passage includes a fluidic jet oscillator with an inlet in fluid communication with said inlet opening and an outlet in fluid communication with said mouthpiece, said delivery channel opening into the inlet of said fluidic jet oscillator.