The present invention provides a gas generator and comprises an electrolytic cell and a water-blocking device. The electrolytic cell is used for electrolyzing electrolyzed water to generate a gas with hydrogen. The electrolytic cell has an outlet for outputting the gas with hydrogen. The water-blocking device is set on the outlet for preventing the electrolyzed water from flowing out when the electrolytic cell is tilted by a tilt angle. The gas pathway of the invention will be closed by the water-blocking device when the gas generator is toppled, thereby preventing the electrolyte-rich electrolyzed water from flowing out.

A portable handheld pressure support system (10) is configured to provide pressure support therapy to a subject. The pressure support system provides a pressurized flow of breathable gas that is delivered to the airway of the subject to treat COPD and/or dyspnea, hyperinflation, and/or other conditions. The system is configured to adjust an expiratory pressure level of the pressure support therapy responsive to identification of hyperinflation in the subject. The pressure support therapy provided to the subject is configured to be used as needed to rapidly alleviate shortness of breath, hyperinflation, and/or other symptoms. The pressure support system is configured to be small and lightweight so that the subject may carry the system and use the system as needed.

A breathing circuit having a semipermeable membrane, an outer cage, and optionally an inner cage. The semipermeable membrane contains a poly(tetrafluoroethylene) membrane and a graphene anti-bacterial compound. The semipermeable membrane is affixed to the outer cage; optionally between the inner cage and the outer cage. Breathing circuits and breathing systems may contain such a cartridge.

A representative method includes: providing a tracheostomy valve assembly having a housing and a diaphragm, the housing defining an interior airflow path, the housing having an exterior surface, a distal opening extending from the exterior surface to the interior flow path and a proximal opening, the distal opening and the proximal opening communicating with the interior airflow path, the diaphragm being disposed within the housing along the interior airflow path, the diaphragm being biased to a closed position to prevent air from passing the diaphragm along the interior airflow path, the diaphragm being configured to selectively move to an open position to enable air to be drawn into the distal opening, passed the diaphragm, and out of the proximal opening in an inhaling direction in response to a proximal side of the diaphragm being exposed to a predetermined negative air pressure applied at the diaphragm as a suction force; and urging the diaphragm away from the closed position with an actuation surface, movably coupled to the housing, to adjust airflow restriction through the tracheostomy valve assembly.

A device and a method for artificial respiration in emergencies are proposed. The device comprises respiratory mask (40) which can be placed onto the nose and mouth section of a person to be provided with artificial respiration, a mouth section mouthpiece (41), through which respiratory air from an aider can be supplied, a flow tube (2) disposed between the respiratory mask (40) and the mouthpiece (41), which flow tube forms a continuous flow channel for the supplied respiratory air from the mouthpiece (41) to the respiratory mask (40), at least one sensor (10) disposed in the flow channel of the flow tube (2), which sensor measures parameters of the gases flowing through the flow channel, a processor disposed on the flow tube (2) and an output device (124). Here, the processor processes the mass or volumetric flow registered by the flow sensor (19) to form an output signal. The output device (124) emits the output signal.

The present invention provides a gas generator and comprises an electrolytic cell and a water-blocking device. The electrolytic cell is used for electrolyzing electrolyzed water to generate a gas with hydrogen. The electrolytic cell has an outlet for outputting the gas with hydrogen. The water-blocking device is set on the outlet for preventing the electrolyzed water from flowing out when the electrolytic cell is tilted by a tilt angle. The gas pathway of the invention will be closed by the water-blocking device when the gas generator is toppled, thereby preventing the electrolyte-rich electrolyzed water from flowing out.

An oscillatory respiratory therapy device (100) has a rocker aim (105) that opens and closes a valve seat (106) by breathing through the device. The device (100) also includes a gas treatment arrangement including an HME (122) and filter (121) located such that both inhaled and exhaled gas passes through the HME and filter.

Embodiments of a respiratory support apparatus are disclosed comprising features configured to minimize, reduce or contain aerosols carrying pathogens that can cause diseases such as COVID 19, SARS, MERS, Tuberculosis, or any other infectious diseases. Embodiments of a respiratory support apparatus are also provided configured to at least reduce the amount of oxygen required, during use of the apparatus, from an external oxygen supply such as an oxygen tank or hospital wall supply. Embodiments of such apparatus are provided with means to recirculate expiratory gases, and/or redirect leak flow. Embodiments of such apparatus are provided in which expiratory gases are sucked away from the patient. Embodiments of such apparatus are provided comprising a first flow generator for delivering inspiratory gases, and a second flow generator for removing expiratory gases.

A CPAP device includes a housing. A suction port is provided in a top plate portion of a casing of the air blower. The air blower chamber has a facing wall portion facing the top plate portion with a distance therebetween. A wall portion defining the air blower chamber is provided with an introduction port for introducing external air. In a space between the facing wall portion and the top plate portion, a flow adjustment portion that partitions the space into flow paths arranged side by side around a rotation axis is provided. An outer end portion and an inner end portion of each of the flow paths in a direction orthogonal to the rotation axis are respectively constituted of a first open end and a second open end, the first open end and the second open end being open along the direction orthogonal to the rotation axis.

Technologies (e.g., devices, systems and methods) for sanitizing positive airway pressure (PAP) systems are described. In some embodiments, the technologies include a PAP delivery system comprising a hose and a PAP mask, a positive pressure supply system configured to generate a flow of pressurized air which is delivered to a user through the hose to the PAP mask of the PAP delivery system, a sanitizing system configured to sanitize one or more components of the self-sanitizing PAP system, and a PAP base unit housing, wherein one or more components of the positive pressure supply system and the sanitizing system are disposed at least partially within the PAP base unit housing.