Valved auxiliary device for use with aerosol container
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United States of America Patent
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Jun 27, 1995
Issued Date -
N/A
app pub date -
Sep 8, 1993
filing date -
Apr 17, 1989
priority date (Note) -
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Abstract
An auxiliary device is provided for use with a metered-dose aerosol device. The auxiliary device comprises a chamber having an inlet adapted to receive the metered-dose aerosol device, and an outlet. A mask adapted to communicate with the nose and/or mouth of an infant or young child communicates with the chamber outlet via a first valve which permits the infant or young child to inhale aerosol-carrying air from the chamber, and communicates with atmosphere via a second valve permitting exhalation therethrough. The distance between the chamber inlet and the chamber outlet is such that the mass percentage of aerosol particles having a diameter of from 1.0 microns to 5.0 microns is substantially a maximum at the chamber outlet, and the volume of the chamber is from 200-500 ml.
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