Device for inhalation aerosol

Claim 1

AN AEROSOL INHALATION DEVICE FOR ADMINISTERING TO THE LUNG CAVITIES A MEDICATION STORED WITH A PROPELLANT UNDER PRESSURE IN AN AEROSOL CONTAINER HAVING A HOLLOW DISCHARGE VALVE STEM PROJECTING FROM A SEALING CLOSURE, SAID DEVICE COMPRISING: (A) A CLOSED CHAMBER EFFECTED BY HAVING AN INLET OPENING ADAPTED TO FIT IN A SUBSTANTIALLY AIR-TIGHT MANNER THE SEALING CLOSURE OF THE AEROSOL CONTAINER WITH THE AEROSOL DISCHARGE VALVE INSIDE THE CHAMBER, SAID CLOSED CHAMBER ALSO HAVING AN OUTLET TUBE ADAPTED TO BE GRASPED BY THE LIPS OF THE USER AND THROUGH WHICH AN AEROSOL MIST, WHEN IT IS FORMED IN THE CLOSED CHAMBER, PASSES INTO THE MOUTH OF THE USER, SAID CLOSED CHAMBER ALSO HAVING VENT MEANS, WHICH, WHEN ACTUATED TO OPEN POSITION, ADMITS AIR FROM THE EXTERIOR OF SAID CLOSED CHAMBER TO THE INTERIOR OF SAID CLOSED CHAMBER; (B) MECHANISM POSITIONED WITHIN SAID CLOSED CHAMBER ADAPTED TO ENGAGE SAID AEROSOL DISCHARGE VALVE STEM AND, WHEN DISPLACED, MOVING SAID AEROSOL VALVE STEM TO DISCHARGE A PROPELLENT-MEDICATION MIXTURE FROM THE AEROSOL CONTAINER INTO SAID CLOSED CHAMBER AND IN THE DIRECTION OF THE OUTER TUBE; (C) AN AEROSOL ACTUATING BOTTON POSITIONED OUTSIDE SAID CLOSED CHAMBER; AND (D) CONNECTING MEANS MECHANICALLY CONNECTING SAID ACTUATING BOTTON WITH SAID MECHANISM AND RESPOSIVE TO THE ACTUATION OF SAID MECHANISM FOR OPENING SAID VENT MEANS TO ADMIT AIR INTO SAID CLOSED CHAMBER FROM THE EXTERIOR THEREOF WHEN THE MECHANISM IS ACTUATED TO EFFECT A DISCHARGE OF THE PROPELLANT-MEDICATION MIXTURE FROM THE AEROSOL CONTAINER INTO THE CLOSED CHAMBER.