Piezo inhaler
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United States of America Patent
Stats
-
Mar 6, 2001
Grant Date -
N/A
app pub date -
Feb 24, 1999
filing date -
Feb 24, 1999
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An inhaler provides a controlled delivery of an inhalant and includes an inhaler housing and a mouthpiece coupled to the inhaler housing. A piezoelectric dispenser-head is coupled to the inhaler housing and configured to be coupled to the dispensing chamber. The piezoelectric dispenser-head includes an array of dispensing channels and an array of dispensing nozzles. The array of dispensing channels are formed with actuatable walls made at least partially of a piezoelectric material. Application of an electric field to selected side walls reduces a volume in an associated channel and creates a pressure pulse of flowable substance in the associated channel through a dispensing nozzle.
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