Flores medical - multisonic - Inhalation mit Ultraschall

Jet nebulizers

Jet nebulizers (compressor nebulizers) work by passing an air stream through a venturi nozzle and nebulizing the liquid. They are either of the continuous-flow or breathe-activated type.

Compressor nebulizers work by passing a pressurized air stream through an opening, thereby creating a vacuum (Bernoulli Effect) that forces the liquid through capillaries. The decrease in gas pressure lets the speed of the liquid coming from the reservoir increase and the liquid disperse. The purpose of the baffle plate arranged immediately behind the jet opening is to further reduce the size of the droplets at impingement.

The remaining liquid flows back to the solution and is available for the next nebulisation. This continuously repeated circulation causes a strong evaporation to take place so that the air streaming off the nebulizer is saturated with water vapour. As a result, because evaporation produces coldness, the patient will inhale a relatively cold aerosol. Evaporation also produces a gradual increase in the concentration of the solution.

Compressed air pressure, jet and baffle plate geometry and viscosity of the solution are the dominant factors affecting the particle size distribution of compressed air inhalers.

Compressed air inhalers are robust and easy to handle. However, apart from producing a rather cool aerosol with a low mist density, they are very noisy in operation. Non-optimal performance of a nebulizer may necessitate longer inhalation times. Changes in the jets and other factors cause the droplet spectrum (larger MMAD) to change under long-term operation.

Jet nebulizers

Nebulair
Nebulair
Elisir
Elisir
Masterneb
Masterneb
RF 6 Plus
RF 6 Plus
RF 6 Basic
RF 6 Basic
Nasal Douche
Nasal Douche
Lella
Lella