Abstract: A nebulizer in which the feed to the spray nozzle is through a narrow space between the flat bottom of the liquid reservoir and a flange fixed to the bottom of the spray nozzle, where the space is narrow enough to draw liquid toward the spray nozzle by capillary action and aspiration at any orientation of the nebulizer between vertical and horizontal.

Abstract: A disposable nebulizer-manifold device which produces aerosol includes a manifold body and a nebulizer unit having a nozzle assembly. The manifold body includes a main supply inlet, exhalation outlet, and a patient connector port. Within the manifold body is a diaphragm assembly which controls the exhalation port.

Abstract: An inhalation device for indicating inhalation flow rate and the passage of time between inhalations, including a vertical cylindrical chamber having a lower first closed end with a first one-way valve for allowing gas flow into said chamber, an upper second closed end, an outlet proximate said upper closed end for inhalation, the interior surface of the sidewalls of said chamber defining an inside horizontal cross sectional area substantially constant from said first closed end to an area intermediate said first closed end and said second closed end, said chamber sidewalls further defining a gradually increasing horizontal cross sectional area from said intermediate area to said second closed end. Disposed vertically within said vertical chamber and concentrically aligned therewith is a tubular member with a plurality of openings proximate said upper closed end, said tubular member being in communication with an inhalation exhalation outlet and a second one-way valve for exhalation.

Abstract: A self-contained disposable unit for converting a liquid to aerosol or for humidifying a gas includes gas inlet means and an enclosed container having a liquid supply reservoir and an outlet for the aerosol or for the humidified gas. A nozzle assembly for producing aerosol extends into the container above the liquid supply reservoir and a dual purpose conduit in communication with the liquid supply reservoir either carries liquid from the reservoir to the nozzle assembly during nebulization or passes gas into the liquid in the reservoir during humidification. The unit also includes valve means for selectively diverting gas from the gas inlet means to the nozzle assembly for nebulization or through the dual purpose conduit into the liquid in the liquid supply reservoir for humidification.

Abstract: A nebulizer in which the feed to the spray nozzle is through a narrow space between the flat bottom of the liquid reservoir and a flange fixed to the bottom of the spray nozzle, where the space is narrow enough to draw liquid toward the spray nozzle by capillary action and aspiration at any orientation of the nebulizer between vertical and horizontal.