Abstract: The invention relates to a method and a device for producing elementary oxygen or for increasing the concentration thereof in the inhaled air of a user. According to the invention, water is split into hydrogen and elementary oxygen by means of electrical energy (electrolysis), the elementary oxygen is mixed with the inhaled air, and the hydrogen is mixed with the surrounding air in order to be converted back into water (fuel reaction). The splitting of the water into hydrogen and elementary oxygen and the conversion of the hydrogen and surrounding air into water take place simultaneously and continuously, forming a reaction circuit, and are coupled to each other, the electrical energy produced during the conversion being used to reduce the energy demand for the splitting.

Abstract: The invention relates to a method and a device for producing elementary oxygen or for increasing the concentration thereof in the inhaled air of a user. According to the invention, water is split into hydrogen and elementary oxygen by means of electrical energy (electrolysis), the elementary oxygen is mixed with the inhaled air, and the hydrogen is mixed with the surrounding air in order to be converted back into water (fuel reaction). The splitting of the water into hydrogen and elementary oxygen and the conversion of the hydrogen and surrounding air into water take place simultaneously and continuously, forming a reaction circuit, and are coupled to each other, the electrical energy produced during the conversion being used to reduce the energy demand for the splitting.

Abstract: A The invention relates to a nasal breathing mask having a mask part (1) and a mask-holding part (2) which at the upper end is connected to a tube (3), a forehead plate (10), which is connected to a forehead-plate mount (9), being axially adjustable on the elongate tube (3) by means of a latching/clamping connection.

Abstract: The invention relates to a nasal breathing mask having a mask part (1) and a mask-holding part (2), which at the top end is connected to an elongate tube (3) which in turn is connected to a hose connection for a breathing hose and on which a forehead plate (10), connected to a forehead-plate mount (11), is axially adjustable, a region (9) which is more flexible than the rest of the tube (3) being designed and arranged along the path of the tube (3) in such a way that the mask part can be moved toward the user with respect to the forehead-plate mount (11), in order to allow adjustment as a function of the patient's anatomy.

Abstract: The invention relates to a method and a device for determination of functional residual capacity (FRC) by introduction of helium or another inert gas mixture. According to the invention, a measurement apparatus measures the density of the gas mixture upon inspiration and upon expiration at the mouthpiece of a tube or at a mask during forced ventilation of a patient over a plurality of respiratory cycles. The FRC is determined from the difference in the gas concentrations.

Abstract: A medicament nebulizer in which a liquid medicament is drawn through capillary flow along a bell shaped path to an annular medicament orifice. Pressurized atomization air is discharged from an orifice and is directed against a deflector which causes the air to flow with a swirling turbulence over one or more medicament orifices. The atomization air aspirates medicament from the medicament orifice and atomizes the medicament. The turbulent swirling flow of the atomization air decreases the average size of the droplets in the resulting aerosol. The flow path of the aerosol through an aerosol chamber to a mouthpiece may rapidly change directions to facilitate condensation of any large droplets in the aerosol. Alternately, a swirling or spiral flow direction may be imparted to the aerosol as it passes through the aerosol chamber to cause any larger droplets to contact and condense on the walls of the chamber.

Abstract: A lamp of low ozone generation is used as the flash lamp, to minimize the amount of ozone reaching the machine exterior. A first cooling-air passage includes the space surrounding the flash lamp and its reflector and is provided downstream thereof with an activated-carbon filter, from which is discharged a quite hot first cooling-air stream of low volumetric flow rate. A second cooling-air stream emerging from the electronics compartment of the machine is much cooler and cleaner and of high volumetric flow rate. The first and second cooling-air streams are mixed together, to dilute and cool the first, prior to actual discharge to the machine exterior. The mixed air streams are discharged in downwards direction.