F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
137/1.5
F02M 15/00 (2006.01) A61M 11/06 (2006.01) A62B 7/00 (2006.01) B05B 7/00 (2006.01)
Patent
CA 1071498
ABSTRACT OF THE DISCLOSURE A nebulizer for use with IPPB equipment comprising a cylindrical housing closed at top and bottom, with an air inlet through the side wall of the housing, and an outlet through the side wall near the top of the housing. The outlet carries a mouthpiece. The bottom portion of the housing comprises a reservoir for liquid medication. There is an axial cylindrical chimney positioned inside the housing, with a skirt which hangs below the position of the inlet so that incoming air from the IPPB flows downward around the chimney, up inside of the chimney, out of the top of the chimney, and sideways into the outlet pipe. Positive pressure air is provided to a vertical nozzle positioned in the bottom of the housing creating a high velocity stream of air which flows over the end of a capillary tube, which dips into the medication in the base portion. The high velocity air jet causes the liquid medication to be inducted through the capillary and to be picked up by the flowing air as droplets of liquid to impinge on a horizontal cylindrical target positioned immediately above the nozzle, so that the liquid droplets are broken into many fine droplets, which are then picked up by the air flow, and carried upward through the chimney and to the outlet pipes.
270413
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