Relating to dispensing apparatus
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United States of America Patent
Stats
-
Jan 8, 2002
Grant Date -
N/A
app pub date -
Dec 10, 1999
filing date -
Dec 11, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to an inhalation apparatus for dispensing substances for inhalation and, in particular, but not exclusively for dispensing medicinal products. An inhalation apparatus is provided having a housing defining a socket for receiving a pressurized dispensing container, an actuator for receiving a valve stem of the pressurized dispensing container and a cylindrical chamber having an inlet located at a periphery of the chamber and an outlet at or near a center of the chamber. The actuator defines a duct designed to direct product dispensed from the valve stem of the pressurized dispensing container through the inlet of the cylindrical chamber in a direction substantially tangential to the major axis of the cylindrical chamber, the outlet of the cylindrical chamber communicating with a mouthpiece, such that the inhalation by a user on the mouthpiece creates a cyclonic airflow in the cylindrical chamber between the inlet and outlet in which the dispensed product is entrained for inhalation.
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