Hand held ultrasonic nebulizer

Details Hand held ultrasonic nebulizer Hand held ultrasonic nebulizer

A - Human Necessities

61

M

299/14, 318/2, 3

A61M 11/00 (2006.01) A61M 15/00 (2006.01) B06B 1/02 (2006.01)

Patent

CA 1106053

ABSTRACT An improved ultrasonic nebulizer for administering a medicament aerosol to a patient. Output from an oscillator is connected through a series inductor to a transducer adjacent a reservoir which generates aerosol from the medicament. The in- ductor is tuned for series resonance with the bulk capacitance of the transducer. An impedance change in the transducer when liquid is removed or consumed from the reservoir reduces the power delivered to the transducer and prevents transducer dam- age.

299615

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