Method and device for nebulisation

Abstract

The nebulisation device includes a liquid reservoir, a liquid supply line for supply of liquid to a nebulisation zone and an outlet opening from the nebulisation zone by which a flow of nebulised liquid particles escapes the nebulisation zone. The outlet opening opens into the liquid reservoir above the level of the liquid and the liquid reservoir has an escape opening for nebulised liquid particles, by which some of the nebulised liquid particles, coming from the outlet opening, leave the reservoir. Optionally, the device comprises an outside air inlet duct with a nozzle in the nebulisation zone and an opening to outside air in the liquid reservoir.

1 . Nebulization device comprising: 
 a liquid container,    a delivery conduit of liquid into a nebulization zone and    an escape opening of the nebulization zone through which a nebulized liquid particle stream escapes from the nebulization zone, wherein said escape opening ends in the liquid container above the liquid level and wherein the liquid container comprises a release opening of nebulized liquid particles through which part of the nebulized liquid particles from the escape opening exits the container.    
   
   
       2 . Device according to  claim 1 , further comprising: 
 a nebulization venturi being comprised of a pressurized air intake conduit, the air intake conduit and liquid delivery conduit featuring each at least one nozzle ending toward the nebulization zone in which the air under pressure coming from the air intake conduit nebulizes the liquid coming from the liquid delivery conduit and an adjusting means of the position of the liquid delivery conduit nozzle in relation to the pressurized air intake conduit nozzle.    
   
   
       3 . Device according to  claim 1 , further comprising: 
 a free air intake conduit being comprised of a nozzle in the nebulization zone and an open air opening in the liquid container.    
   
   
       4 . Device according to  claim 1 , further comprising: 
 an air suction conduit provided with a nozzle in the nebulization zone, and at another opening of the air suction conduit, a negative pressure sensor and    a processing means for a signal from said sensor and representative of the negative pressure inside the suction conduit.    
   
   
       5 . Device according to  claim 4 , wherein said suction conduit further comprises an open air opening in the liquid container.  
   
   
       6 . Nebulization method comprising: 
 suctioning of the liquid to be nebulized into a container, and    injecting the liquid to be nebulized into a nebulization zone, said step of injecting being comprised of: 
 projecting nebulized liquid particles from the nebulization zone into said container above the level of the liquid in the container; and  
 exiting from the container for part of said nebulized liquid particles.  
   
   
   
       7 . Method according to  claim 6 , further comprising: 
 suctioning air into the container; and    injecting for the air sucked into the container in the nebulization zone.    
   
   
       8 . Method according to  claim 6 , further comprising: 
 measuring for the pressure in the nebulization zone s and processing said measurement.    
   
   
       9 . Method according to  claim 8 , wherein, during the processing, operation of an air compressor is stopped or an alarm signal is generated when the pressure measurement meets predetermined variation criteria.  
   
   
       10 . Method according to  claim 8 , wherein said measuring is carried out by a negative pressure sensor located in a suction conduit provided with an open air opening and a nozzle in the nebulization zone.