The invention concerns an apparatus for supplying a respiratory gas and a method of controlling the apparatus. In accordance with the invention there is provided an apparatus for supplying a respiratory gas comprising a conveyor device for conveying the respiratory gas, a conduit means for feeding the respiratory gas conveyed by the conveyor device to a person, and a humidification device for humidifying the respiratory gas, which is distinguished by a sensor device for generating a signal indic...

An air warming device to facilitate breathing comprising a thin wall air warming chamber having a plurality of cells which extend vertically when the device is worn and placed against the chest region of the user. Each cell has a relatively large opening at the bottom and a relatively smaller opening at the upper end. A first manifold extends across the bottom having an upwardly facing open wall in communication with the large openings at the bottom of each cell and having a small opening to adm...

A heat generating unit is incorporated in a mask in order to actively supply warm steam, and also drug vapor, to the nose and throat, and moisturize the upper respiratory tract. It is preferable that a metal powder, salt, and water be contained in the heat generating unit, and that an exothermic composition that releases steam in conjunction with the oxidation reaction of the metal powder be used therein. It is preferable that either an inhalation valve or exhalation valve be provided in the mai...

A portable air temperature controlling device useful for warming air surrounding an aerosolized drug formulation is described. Warming the air of an aerosol makes it possible to reduce the size of aerosol particles produced by an aerosol generation device. Additionally, warming the air forces the size of the aerosol particles to be in the range required for systemic drug delivery independent of ambient conditions. Smaller particles can be more precisely targeted to different areas of the respira...

A portable air temperature controlling device useful for warming air surrounding an aerosolized drug formulation is described. Warming the air of an aerosol makes it possible to reduce the size of aerosol particles produced by an aerosol generation device. Additionally, warming the air forces the size of the aerosol particles to be in the range required for systemic drug delivery independent of ambient conditions. Smaller particles can be more precisely targeted to different areas of the respira...

A frigid air respirator comprising a cylindrical housing affixed to a face mask, openly constructed so as to permit the passage of air upon inhalation by the user into the chamber formed by the housing. A heating means is situated within the housing to increase the temperature of incoming air by radiation and a transversely positioned intake valve governs the admission of air into the respiratory tract of the user and divides the chamber formed by the housing into an internal chamber which is co...

Breathing circuits for medical respiratory devices which have an inspiratory conduit for delivery of respiration-related aeriform substances to a patient, may also have a expiratory conduit, and, in any case are arranged to communicate with a patient interface, such as a wye (14), and have heating means for respiration-related aeriform substances in at least the inspiratory conduit. The heating means may be a heated-liquid heating tube (11) within at least the inspiratory conduit or an electrica...

A portable inhalator including a housing defining an inhalation chamber with a discharge opening for accommodating a breath supporting body portion, an exhaust passage terminating with an exhaust opening and isolated from the inhalation chamber, and a liquid reservoir communicating therewith. Also included are a burner for heating liquid in the reservoir, a fuel canister removably supported by the housing, and a valve for controlling fuel flow between the canister and the burner.

This invention relates to a method for delivering drugs sublimable in a vaporization vehicle. The method involves combining a sufficient amount of a vaporization vehicle to sublime the drug and the drug to be delivered, heating the vaporization vehicle to substantially its boiling point and administering the vapor by inhalation to a subject.

The invention relates to a self-contained device for generating high-pressure breathing oxygen, of the type comprising an oxygen-generating chemical candle (3), a gastight confinement chamber composed of a body (1) and of a cover (2), in which chamber the candle is housed, means of igniting the candle, means of percussing the igniter and means of filtering the oxygen generated, characterized in that the igniting means consist of a compressed mixture of titanium and boron and in that the filterin...