Inhalation device
AssigneeSyntex Puerto Rico, Inc.
InventorStanley Mathes
Life of this patent
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Abstract
An inhalation device having an elongate housing having one or more passageways for the passage of air therethrough. Each passageway, of relatively small diameter, opens into an emptying chamber, of relatively greater diameter, adjacent that end of the housing which is adapted for insertion into the mouth or nose of a user. Adjacent that end of the emptying chamber closest to the passageway(s), the housing has means for receiving or presenting a unit dose of powdered medicament for administration. During inhalation, the air stream passing over and directed into the powdered medicament holder entrains the powdered medicament which is then carried into the nose, throat or lungs of the user where beneficial or therapeutic action of the medicament occurs.
Claims28
An inhalation device comprising an elongate housing having a passageway for the movement of air therethrough, one end of said housing being an output end adapted for insertion into the mouth or nasal passages of a user thereof;
- said passageway terminating in an emptying chamber adjacent the output end of said housing, the cross-sectional area of said passageway being less than the cross-sectional area of said emptying chamber;
- means for receiving a medicament-holding container;
- and hollow means for directing a stream of air drawn therethrough during inhalation into an open medicament-holding container positioned within said container receiving means, whereby air drawn through said passageway and through said hollow means cooperate to cause the medicament in the medicament-holding container to be dispensed therefrom.
An inhalation device comprising an elongate housing having a passageway for the movement of air therethrough, one end of said housing being an output end adapted for insertion into the mouth or nasal passages of a user thereof;
- said passageway connecting an entrance chamber and an emptying chamber adjacent the output end of said housing, the cross-sectional area of said passageway being less than the cross-sectional area of either said entrance chamber or said emptying chamber;
- a first opening in said housing adjacent said emptying chamber for receiving an open medicament-holding container;
- a second opening in said housing disposed opposite said first opening;
- and hollow means positioned within said second opening for directing a stream of air drawn therethrough during inhalation into an open medicament-holding container positioned within said first opening, whereby, during inhalation, air drawn through said passageway and through said hollow means cooperate to cause the medicament in the container to be dispensed therefrom.
An inhalation device comprising an elongate housing having a plurality of passageways for the movement of air therethrough, one end of said housing being an output end adapted for insertion into the mouth or nasal passages of a user thereof;
- said passageways connecting an entrance chamber and an emptying chamber adjacent the output end of said housing, the aggregate cross-sectional area of said passageways being less than the cross-sectional area of either said entrance chamber or said emptying chamber;
- a first opening in said housing adjacent said emptying chamber for receiving a medicament-holding container;
- a second opening in said housing disposed opposite said first opening for directing a stream of air drawn therethrough during inhalation into an opened medicament-holding container positioned within said first opening, whereby, during inhalation, air drawn through said passageways and through said second opening cooperate to cause the medicament in the container to be dispensed therefrom.
An inhalation device consisting of a housing having an output end adapted for insertion into the mouth or nasal passages of a user thereof;
- said housing having a hollow emptying chamber adjacent the output end thereof;
- means adjacent said emptying chamber for receiving a medicament-holding container;
- and hollow means for directing a concentrated stream of air drawn therethrough during inhalation into an open medicament-holding container positioned within said container receiving means, whereby air drawn through said hollow means during inhalation causes the medicament in the medicament-holding container to be dispensed therefrom.
Dependencies are inferred from the claim text.