NEBULIZER THAT IS ACTIVATED BY NEGATIVE INSPIRATORY PRESSURE
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United States of America Patent
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N/A
Issued Date -
Aug 1, 2013
app pub date -
Mar 13, 2013
filing date -
Jan 20, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A nebulizer includes an air channel section and medication reservoir. An air line extends through the air channel section. A venturi nozzle is at its end and configured to form a low pressure mixing chamber. A vent is formed in the body and communicates with the air channel section and medication reservoir to vent the air channel section and medication reservoir to outside ambient air. A primary suction line extends from the medication reservoir to the low pressure mixing chamber through which medication is drawn upward and mixed with air passing through the venturi nozzle and nebulized for discharge. The vent is configured to vent the air channel section and medication reservoir to atmospheric pressure such that at standard temperature and pressure (STP), a differential pressure results between the venturi nozzle and medication reservoir such that no medication is drawn upward through the primary suction line.
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