Aerosol medication delivery system
OwnerRussell W. Kinginventor
Life of this patent
Estimating the term…
Abstract
An apparatus for use in conjunction with a multi-dose inhaler which includes a novel valving mechanism and an expansion chamber which permits medication to be delivered to the patient without the need for precise timing of canister actuation. The apparatus also includes a filter unit for filtering the patient's exhaled breath and a unique baffling arrangement which functions to decrease average aerosol particle size for better targeting of the desired lung area. In one form of the invention a preset, breath-activated control mechanism is provided which aids in the prevention of both over and under dosing of patient.
Claims17
An aerosol inhalation apparatus for delivering a medicament containing mist to a patient comprising:
- (a) a housing having interconnecting first and second chambers and a wall having an opening therein, said wall being disposed intermediate said first and second chambers;
- (b) containerized medication means removably connected to said housing for introducing into said first chamber of said housing a particulate-laden spray having large and small particles of medicament;
- (c) inhalation means connected to said housing for communication with said second chamber for permitting a patient to inhale particulate-laden spray residing within said housing and to exhale a portion thereof into said second chamber;
- and
- (d) flow control means carried by said housing for controlling passage of particulate-laden spray between said first and second chambers during patient inhalation and exhalation, said flow control means comprising a valve member pivotally movably relative to said opening in said wall.
An aerosol inhalation apparatus for delivering a medicament containing mist to a patient comprising:
- (a) a housing having interconnecting first and second chambers, said first chamber having a port in communication with atmosphere, and said second chamber having an outlet port in communication with atmosphere, said housing further including a wall having an opening therein, said wall being disposed intermediate said first and second chambers;
- (b) containerized medication means a multi-dose inhaler removably connected to said housing for introducing into said first chamber of said housing a particulate-laden spray having large and small particles of medicament;
- (c) inhalation means connected to said housing for communication with said second chamber for permitting a patient to inhale particulate-laden spray residing within said housing and to exhale a portion thereof into said second chamber;
- and
- (d) flow control means carried by said housing for controlling passage of particulate-laden spray between said first and second chambers during patient inhalation and exhalation, said flow control means comprising a valve member pivotally movable about a single pivot point relative to said opening in said wall;
- (e) baffle means disposed intermediate said first and second chambers for impeding the flow of particles toward said second chamber;
- and
- (f) filtering means connected to said outlet port for filtering particulates from the particulate-laden mist flowing through said outlet port.
Dependencies are inferred from the claim text.