A patient interface, including a mask assembly and a headgear assembly, provides improved facial sealing and improved ease of use. The mask assembly includes an inflating or ballooning seal. The seal can be secured between two portions of a snap-fit exoskeleton. The headgear assembly connects to the mask assembly with flexible straps during course fitting and with more rigid straps following course fitting. The straps include holes that fit over a tapering post on the mask assembly.

A patient interface, including a mask assembly and a headgear assembly, provides improved facial sealing and improved ease of use. The mask assembly includes an inflating or ballooning seal. The seal can be secured between two portions of a snap-fit exoskeleton. The headgear assembly connects to the mask assembly with flexible straps during course fitting and with more rigid straps following course fitting. The straps include holes that fit over a tapering post on the mask assembly.

The invention relates to an aerosol delivery device (10) comprising an aerosol generator (3) for generating an aerosol in the aerosol delivery device (10), a sensor (5) configured to detect a use of the aerosol delivery device (10) for aerosol treatment, and a controller (7) configured to deactivate the aerosol generator (3) if no use of the aerosol delivery device (10) for aerosol treatment is detected by the sensor (5). Further, the invention relates to a method for operating an aerosol delivery device (10), comprising the steps of operating an aerosol generator (3) for generating an aerosol in the aerosol delivery device (10), detecting a use of the aerosol delivery device (10) for aerosol treatment by means of a sensor (5), and deactivating the aerosol generator (3) by means of a controller (7) if no use of the aerosol delivery device (10) for aerosol treatment is detected by the sensor (5).

A hydrogen generator comprises an electrolytic module, a hydrogen water cup, an integrated passageway device and an automatic diversion device. The electrolytic module is configured to electrolyze water and generate gas comprising hydrogen. The hydrogen water cup is configured for containing liquid, and injecting the gas comprising hydrogen into the liquid to form hydrogen liquid. The integrated passageway device is stacked above the electrolytic module, and includes an inlet gas passageway, an outlet gas passageway and a gas communication passageway. The automatic diversion device is configured for selectively communicating the inlet gas passageway, the hydrogen water cup and the outlet gas passageway or selectively communicating the inlet gas passageway, the gas communication passageway and the outlet gas passageway.

Disclosed is an NO delivery device for supplying an NO-containing gas, including an NO injection line, a flow rate measurement device and a valve device. The valve device is normally closed. An emergency line connected to the injection line includes an emergency solenoid valve, which is normally open, and a flow rate control device. An operating unit operates these elements. In the event of malfunction of the operating unit, the emergency solenoid valve passes to an open position, whilst the valve device passes to a closed position. The flow rate control device supplies the gas at a pre-fixed emergency flow rate of gas, determined on the basis of the gas flow rate measurements supplied by the flow rate measurement device during the normal functioning of the device prior to the malfunction. Gas supply installation including such an NO delivery device and a medical ventilator.

A conduit for communicating a flow of breathing gas from a pressure generating device to the airway of a patient. The conduit includes a first end which is structured to be coupled to the pressure generating device for receiving the flow of breathing gas and an opposite second end which is structured to be coupled to a patient interface device. The conduit further includes an active control element positioned at or near the second end; a first heating wire connected between the active control element and a first connection terminal positioned at or about the first end; and a second heating wire connected between the active control element and a second connection terminal positioned at or about the first end. Each of the first and second connection terminals are structured to be connected to a tube power supply.

The present invention provides a method and apparatus for reducing condensation in a respiratory circuit during a delivery of humidifying agent into the respiratory circuit. A first amount of humidification agent to a first volume of gas is delivered to a patient respiratory circuit during a patient inhalation cycle or immediately after a patient exhalation cycle, and the humidification agent or the first volume of gas is heated. Condensation is removed from the respiratory circuit at least in part by providing, during a patient exhalation cycle or immediately after a patient inhalation cycle, a second amount of the humidification agent to a second volume of gas being delivered from the gas source to the patient respiratory circuit, the second amount of the humidification agent being significantly less than the first amount of the humidification agent.

The present invention provides a method and apparatus for reducing condensation in a respiratory circuit during a delivery of humidifying agent into the respiratory circuit. A first amount of humidification agent to a first volume of gas is delivered to a patient respiratory circuit during a patient inhalation cycle or immediately after a patient exhalation cycle, and the humidification agent or the first volume of gas is heated. Condensation is removed from the respiratory circuit at least in part by providing, during a patient exhalation cycle or immediately after a patient inhalation cycle, a second amount of the humidification agent to a second volume of gas being delivered from the gas source to the patient respiratory circuit, the second amount of the humidification agent being significantly less than the first amount of the humidification agent.

In an embodiment, a connector or connector assembly for attaching a nasal cannula with a gas delivery hose includes a sensor port for a sensor probe positioned near an end of a nasal cannula, which can allow the sensor probe to be placed closer to the patient's nostrils than previous connector parts allowed. The connector can be configured to advantageously allow the nasal cannula to rotate relative to the gas delivery hose, thereby allowing a patient or healthcare provider to untangle or otherwise straighten the hose or the cannula. The connector assembly can be configured to automatically align locking protrusions on a first component with locking recesses on a second component, where insertion of the second component within the first component causes the second component to rotate relative to the first component, thereby aligning the locking protrusions with associated locking recesses.

Provided is a ventilator that includes a breathing system, a mechanical system coupled to breathing system, and a control system coupled to breathing system and mechanical system. The control system includes pressure sensors, processing circuitry, and memory configured to store a look-up table. The processing circuitry receives a set of values for plurality of parameters, identifies a compression value from a plurality of compression values in the look-up table based on the received set of values. The processing circuitry causes the mechanical system to compress a bag valve of the breathing system in accordance with the identified compression value. The compression of the bag valve causes a gaseous inhalant to flow through the breathing system within a time-interval. The processing circuitry determines an actual volume of the gaseous inhalant and iteratively modifies the compression value of the bag valve to match a desired volume of the gaseous inhalant.