Inhalation Device with at Least One Liquid Jet Device

Abstract

An inhalation device with at least one liquid jet device, such as a micro heater or resistor, having at least one nozzle to produce liquid drops on demand in a mouthpiece, wherein at least one nozzle is closable by a valve. The valve may be adapted to cover the at least one nozzle.

1 . An inhalation device comprising:
 at least one liquid jet device;   at least one nozzle to dispense liquid drops on demand in a mouthpiece, and   a valve;   wherein the at least one nozzle is closable by the valve.   
     
     
         2 . The inhalation device of  claim 1 , wherein the liquid jet device is in the form of a MEMS. 
     
     
         3 . The inhalation device of  claim 1 , wherein the valve is a flap valve. 
     
     
         4 . The inhalation device of  claim 1 , wherein the valve is adapted to cover the at least one nozzle. 
     
     
         5 . The inhalation device of  claim 1 , wherein the valve is adapted to be opened by pressure applied by liquid drops ejected from the at least one nozzle and/or by a negative pressure generated by a user during inhalation. 
     
     
         6 . The inhalation device of  claim 1 , wherein the valve is biased into a state closing the at least one nozzle. 
     
     
         7 . The inhalation device of  claim 1 , wherein a valve member extends essentially perpendicular to a longitudinal axis of the inhalation device.