A reservoir configured to retain a volume of liquid for use in an apparatus for humidifying a flow of pressurised air comprises a base portion and a lid portion. The reservoir may be configured to improve its level of thermal contact to the heater plate using the flow of pressurised air. The reservoir may be configured to improve thermal contact between the reservoir and the heater plate by pre-compression upon engagement of the reservoir with the humidifier. The reservoir may comprise a removable intermediate portion, which may include the inlet tube and/or the outlet tube, for improved access for cleaning. The reservoir may also be configured to prevent overfilling. Overfill prevention features in the reservoir may include defined flow egress paths and/or formation of air locks.

The present invention provides a breathing assistance apparatus that has a convenient and effective method of cleaning internal conduits inside the apparatus. The breathing assistance apparatus is preferably a gases supply and humidification device. The cleaning method is a method of disinfection that is automated so minimal training is required to disinfect in particular an internal elbow conduit within the device. It is therefore not necessary to dismantle the gases supply and humidification device, therefore, inadvertent damage to the internal parts of the device is avoided. The present invention also provides a method of disinfecting a heated breathing conduit and a patient interface.

A respiratory flow therapy apparatus including a sensor module can measure a flow rate of gases or gases concentration provided to a patient. The sensor module can be located after a blower and/or mixer. The sensor module can include at least an ultrasonic transmitter, a receiver, a temperature sensor, a pressure sensor, a humidity sensor and/or a flow rate sensor. The receivers can be immersed in the gases flow path. The receivers can cancel delays in the transmitters and improve accuracy of measurements of characteristics of the gases flow. The receivers can allow for detection of a fault condition in a blower motor of the apparatus.

In alternative embodiments, provided are mechanical ventilators and methods for making and using them.

A method for estimating an inhale dose when a drug is delivered to a person using an inhaler is disclosed. A predicted inhale dose (PID) of the drug is estimated based on at least one first-type parameter and at least one second-type parameter. The first-type parameter is related to a breath pattern of the person, and the second-type parameter is related to the inhaler.

A smart mask includes a face covering, an attachment member, one or more sensors, and a controller. The face covering is configured to cover a face area of a wearer. The attachment member is configured to attach the face covering onto the face area of the wearer. The one or more sensors comprises an air quality sensor configured to obtain first data associated with nearby air quality or a breathing pattern sensor configured to obtain second data associated with the wearer's breathing pattern. The controller is configured to process the first data associated with nearby air quality to identify a current air quality, or process the second data obtained by the breathing pattern. In response to determining that the current air quality is worse than a predetermined threshold, or identifying a particular breathing pattern, the controller is configured to generate a notification, notifying the wearer.

A filter sterilization system includes an expiratory filter having filter material that collects pathogens present in the exhaled gas stream from a ventilated patient. A filter sterilizer includes an ultraviolet (UV) light source that is activated by the system to emit light towards the expiratory filter. Additionally, the system includes a ventilator coupled to a patient breathing circuit that provides a gas mixture from a gas source to the ventilated patient and transfers exhaled gases of the ventilated patient to the expiratory filter.

A combination respiratory therapy management system creates a combined respiratory therapy prescription that can be executed by a combined respiratory therapy device to provide multiple coordinated respiratory therapies to a patient. The system can update the combined respiratory therapy prescription and implement the updates while the combined respiratory therapy device is in use. Some versions of the system provide additional features that allow the combined respiratory therapy prescriptions to be created, accessed, shared with other users, and performed by the combination respiratory therapy device in a customizable user-friendly and non-threatening way.

A breathing circuit component includes an inlet, an outlet and an enclosing wall. The enclosing wall defines a gases passageway between the inlet and the outlet. At least a region of the enclosing wall is formed from a breathable material that allows the passage of water vapor without allowing the passage of liquid water or respiratory gases. The breathing circuit component may be the expiratory limb of a breathing circuit.

A water reservoir includes a water reservoir base configured to hold a volume of water to be used for humidification of pressurized breathable air, a water reservoir lid connected to the water reservoir base, and a compressible resilient portion configured to seal between the water reservoir base and the water reservoir lid. The base and the lid are movable relative to one another when connected whilst maintaining sealing therebetween due to the compressible resilient portion. A retainer is configured to secure the water reservoir to a water reservoir dock, and has a protrusion or recess to releasably engage one another when the water reservoir is received in the dock, with a reaction force to compression of the compressible resilient portion urging the protrusion and the recess into engagement with one another.