Patent ID: 7036500

Claim:
A nebulizer head having an auxiliary gas inlet port for introducing a supplemental gas, comprising: a first chamber having a closed top, enclosing sides and an open bottom adapted to receive for coupling thereto a receptacle adapted to contain a liquid medicant to be dispensed at a predetermined rate of concentration; a second nebulizing chamber carried within said first chamber at a position spaced from said closed top and extending downwardly therefrom; said nebulizing chamber having an open bottom adapted to pass outwardly there through entrained and nebulized liquid medicant; a nebulizing nozzle in fluid communication with said nebulizing chamber for creating a nebulized aerosol from liquid medicant coupled thereto; means for coupling a flow of nebulizing gas into said first chamber to said nebulizing nozzle and through said second nebulizing chamber carried within said first chamber; an aspirator tube having a first end positioned in fluid communication adjacent to said nebulizing nozzle, and a second end positioned to be received into liquid medicant contained within the receptacle; an auxiliary gas inlet port for introducing a supplemental gas into said first chamber; said auxiliary gas inlet port having a discharge outlet in fluid communication with said first chamber at a position removed from the interior of said nebulizing chamber; and said first chamber having a discharge outlet spaced from said open bottom of said nebulizing chamber and said auxiliary gas inlet port for discharging liquid medicant entrained in said nebulizing chamber and the supplemental gas introduced into said first chamber through said auxiliary gas inlet port.