A substance delivery mask includes a body, an exhaling valve, an inhaled valve, and a fog module. The fog module comprises a controlling module, a container, and an atomizer. The controlling module is disposed on the body. The container is disposed on the controlling module, the container is storing a mixed liquid, and the mixed liquid includes water and a plurality of nanoparticles. The atomizer is disposed on the container, the atomizer is used to atomize the water of the mixed liquid to form fog particles, and the fog particles are wrapped several of the nanoparticles respectively. The substance delivery mask can encapsulate the water-soluble or water-insoluble medicines, or nutritional products in the fog particles generated from the atomizer. The present invention can deliver medicine, nutritional products or vaccines by inhalation or oral.

An apparatus for use in humidifying a flow of treatment gas for a user includes: a housing; an inlet structured to receive the flow of treatment gas from a gas flow generator; an outlet structured to convey the flow of treatment gas to a patient interface device; a compartment defined in the housing, the compartment being structured to hold a volume of water therein; a primary valve disposed between the inlet and the compartment, the primary valve being structured to permit passage of the flow of treatment gas from the inlet to the compartment and to prevent passage of a fluid from the compartment to the inlet; and a secondary valve disposed between the compartment and the inlet which is structured to permit passage of a fluid from the compartment to the inlet and to prevent passage of the flow of treatment gas from the inlet to the compartment.

A gases humidifier comprising: a gases inlet and an outlet, a removable humidification chamber cartridge with a heater source adapted to vaporize fluid; and a metering arrangement adapted to connect to and transfer fluid from a fluid supply to the humidification chamber.

An arrangement for powering a pump in providing a controlled volume of water to a drip nozzle in a drip-feed humidifier. The pump arrangement including: a pump having a solenoid; a processing unit; and a power supply electrically connected to the solenoid via a switch which is controlled by the processing unit. The power supply is structured to supply power to the solenoid via the switch. The processing unit is programmed to modulate the power to the solenoid such that the pump is driven at or near a resonant frequency of the pump.

A humidifier is for an airway pressure support system for delivering a humidified flow of breathing gas to an airway of a patient. The humidifier includes a water chamber, a filter, a filtration meter, a conduit, a nozzle, and a heater plate. The filter has a housing structured to house a filtration medium therein and having an inlet fluidly connected with the water chamber and an outlet. The filtration meter includes an inlet fluidly connected to the outlet of the filter, an outlet, a body portion extending between the inlet and the outlet which is structured to convey water from the inlet of the filtration meter to the outlet of the filtration meter, and a mechanism located in the body portion which is structured to measure filtration data of the water conveyed through the body portion.

A method for operating a humidifier coupled to a gas flow generator. The humidifier has a pump providing a supply of water to a heater plate. The method includes: providing power to the gas flow generator; raising the temperature of the heater plate from an ambient temperature to about a first predetermined temperature; powering the pump at about a predetermined first duty cycle; monitoring the temperature of the heater plate until one of: a drop in temperature is detected, or a predetermined period of time has elapsed; and one of: increasing the duty cycle of the pump if the drop in temperature is detected, or turning off the pump if the predetermined period of time has elapsed.

The present invention relates to a device (10) for supplying a mist of liquid (F). The device (10) is used in combination with a container (20) with an opening (200) for containing the liquid (F). The device (10) includes a main body (100) comprising: (i) a center axis (C); (ii) a liquid chamber (110) formed inside the main body (100), into which a predetermined amount of liquid (F) can be taken up; (iii) a first port (112) formed in a base wall (114) of the main body (100) forming a bottom surface (116) of the liquid chamber (110) so as to face the opening (200) when the device (10) and the container (20) are combined with each other, through which the liquid (F) can flow; (iv) a second port (118) formed in the base wall (114) at a position different from the position where the first port (112) is formed so as to face the opening (200) when the device (10) and the container (20) are combined with each other, through which the liquid (F) can flow; and (v) an aperture (120) connected to the liquid chamber (110), through which a mist of liquid (F) can be released to the outside of the main body (100). The device (10) further includes: a connecting section (122) provided on the main body (100) so as to extend from it in a direction away from the base wall (114) and used for connecting the container (20) to the main body (100); an atomizing element (124) interposed between the liquid chamber (110) and the aperture (120) to atomize the liquid (F) taken up in the liquid chamber (110) and release a mist of the liquid (F) to the outside of the main body (100) from the aperture (120); a first valve (126) mounted on the main body (100) corresponding to the first port (112), wherein the first valve (126) permits the liquid (F) in the container (20) flowing into the liquid chamber (110) through the first port (112) under the influence of gravity, and prevents the liquid (F) in the liquid chamber (110) flowing into the container (20) under the influence of gravity; and a second valve (128) mounted on the main body (100) corresponding to the second port (118), wherein the second valve (128) prevents the liquid (F) in the container (20) from flowing into the liquid chamber (110) through the second port (118) under the influence of gravity, and selectively permits or prevents the liquid (F) in the liquid cha

An apparatus is provided to prevent water ingress to a medical device with a housing. Such water ingress may originate, for example, from a connected humidifier. The apparatus consists of an endcap including at least one aperture for selective coupling with a compatible accessory. The end cap is constructed from panels which cooperate to provide an internal fluid passageway for diverting water from the point of ingress to the exterior of the housing.

A humidifier for an airway pressure support system is implemented for delivering a humidified flow of breathing gas to a patient. The humidifier includes a water chamber, a conduit, a nozzle, a heater plate, and a separator feature. The conduit includes first and second ends, and a wall portion defining an interior pathway between the first and second ends and structured to convey the flow of breathing gas between the first and second ends. The nozzle is fluidly connected to the water chamber and configured to produce a water droplet from water received from the water chamber. The heater plate is coupled to the wall portion, exposed to the interior pathway, and positioned to receive the water droplet from the nozzle. The separator feature is coupled to the wall portion and configured to shield the water droplet from the flow of breathing gas.

A humidifier is configured to humidify a flow of pressurized respiratory gas. The humidifier includes a tub base configured to retain a body of water and a tub lid configured to cover the tub base. The humidifier also includes an inlet passage configured to receive the flow of pressurized respiratory gas and deliver the pressurized respiratory gas to an interior of the humidifier. At least a portion of the inlet passage is configured to float on the body of water retained in the tub base.