Aspects of the disclosure describe a design that isolates concentrated oxygen from electrical and/or flammable components of a ventilator. In an example, ventilator components containing or otherwise interacting with concentrated oxygen are isolated from the electrical equipment and/or drained to an exterior of the housing of the ventilator, in case of a leak. For example, an isolating structure encases the concentrated oxygen-carrying components to prevent concentrated oxygen from inadvertently leaking into the inside of the housing of the ventilator. The isolating structure may be a sleeve. An isolation gas inside the isolating structure may be fluidly coupled with ambient air outside the housing of the ventilator to allow the escape of isolation gas outside of the ventilator housing.

Therapy gas delivery systems that provide run-time-to-empty information to a user of the system and methods for administering therapeutic gas to a patient. The therapeutic gas delivery system may include a gas pressure sensor attachable to a therapeutic gas source that communicates therapeutic gas pressure data to a therapeutic gas delivery system controller, a gas temperature sensor positioned to measure gas temperature in the therapeutic gas source that communicates therapeutic gas temperature data to the therapeutic gas delivery system controller, at least one flow controller that communicates therapeutic gas flow rate data to the therapeutic gas delivery system controller, at least one flow sensor that communicates flow rate data to the therapeutic gas delivery system controller, and at least one display that communicates run-time-to-empty to a user of the therapeutic gas delivery system. The therapeutic gas delivery system controller of the system includes a processor that executes an algorithm to calculate the run-time-to-empty from the data received from the gas pressure sensor, temperature sensor, flow controller and flow sensor, and directs the result to the display.

A filter for an apparatus for delivering a flow of gas, the filter comprising: a filter body, wherein the filter body has a main compartment and a sub-compartment at least partly within the main compartment, wherein the main compartment is in fluid communication with a main compartment gases inlet and the sub-compartment is in fluid communication with a sub-compartment gases inlet; and a filter medium associated with both the main compartment and the sub-compartment, and that is arranged to filter gases in, or exiting, the main compartment and the sub-compartment.

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 nitric oxide administration device 14 includes a second flow path 201 including an intake port 201a and an NO supply port 201b, a discharge unit 205 which is arranged in the second flow path 201 and which generates NO from air introduced via the intake port 201a, generated NO being supplied via the NO supply port 201b, an NO.sub.2 adsorption unit 206 which is arranged downstream of the discharge unit 205 and removes NO.sub.2, a bypass flow path 217 for reflux from downstream of the NO.sub.2 adsorption unit 206 to upstream of the NO.sub.2 adsorption unit 206, and a three-way valve 216 for switching the opening and closing of a flow path from downstream of the NO.sub.2 adsorption unit 206 to the NO supply port 201b.

The present disclosure describes a ventilator. The ventilator includes tubing configured to receive an input gas and a flow outlet airline in fluid communication with the tubing. The flow outlet airline includes an airline outlet, and the flow outlet airline is configured to supply an output gas to a user via the airline outlet. The ventilator includes an aerosol generator in fluid communication with the flow outlet airline. The aerosol generator is configured to receive an input liquid through an inlet tube and transform the liquid input into an aerosol. The ventilator further includes a breath detection airline including an airline inlet, wherein the airline inlet is separated from the airline outlet of the flow outlet airline, and configured to receive breathing gas from the user during exhalation by the user via the airline inlet. A method of supplying respiratory gas containing an aerosol is disclosed.

In an aspect, a system for a cloud-based user physiology detection software and patient monitoring system. A system includes a wearable device. A wearable device includes a sensor. A sensor is configured to receive physiological data from a user. A system includes a patient monitor configured to monitor a vital sign of a user. A system includes a therapeutic delivery device configured to administer a therapeutic remedy to a user. A system includes a computing device configured to modify a therapeutic remedy of a therapeutic delivery device as a function of physiological data. A method of providing a therapeutic remedy using a cloud-based detection software is also disclosed.

A passive valve for use as a fixed leak valve. The valve includes a body having an internal chamber, first and second body ports in fluid communication with the chamber with the first port configured for fluid communication with a patient connection and the second body port configured for fluid communication with a ventilator, a body passageway in fluid communication with the chamber and with ambient air exterior of the body, and a check valve seal positioned to seal the body passageway to permit the flow of gas within the chamber through the body passageway to the exterior of the body and to prevent the flow of ambient air exterior of the body through the body passageway into the chamber. In alternative embodiments, the valve is incorporated into the patient connection or constructed as a separate part connectable to the patient connection.

A portable oxygen generating system is provided that comprises a reaction chamber, a feed system for providing and controlling hydrogen peroxide solution to the reaction chamber, and a cooling/condensing system for cooling the hot oxygen and water vapor leaving the reactor and condensing and removing water. The portable chemical oxygen generation system produces humidified, breathable oxygen, that is substantially free of hydrogen peroxide and other contaminants, at a controlled flow and temperature over an extended period of time.

A nitric oxide administration device 1 includes a first flow path 101 including a first intake port 101a and an oxygen supply port 101b, an oxygen generation unit 100 which is arranged in the first flow path 101 and which generates concentrated oxygen from air introduced via the first intake port 101a, the generated concentrated oxygen being supplied via the oxygen supply port 101b, a second flow path 201 which is branched from the first flow path 101 and which includes an NO supply port 201b, and an NO generation unit 200 which is arranged in the second flow path 201 and which generates NO from gas distributed from the first flow path 101, the generated NO being supplied via the NO supply port 201b.