MDI device with ultrasound sensor to detect aerosol dispensing
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United States of America Patent
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Aug 18, 1998
Grant Date -
N/A
app pub date -
Apr 2, 1997
filing date -
Apr 2, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An intrapulmonary delivery device is provided for delivery of a propellant driven medicament. The device has an indicating system with a sensor responsive to a selected range of ultrasound, a controller associated with the sensor for signalling the detected ultrasound, a differential pressure sensor and a display for the signals. The controller is associated with a microprocessor where the signal level the duration and time of actuation is stored in memory.
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