An aerosol-generating system for oral or nasal delivery of a generated aerosol to a user is provided, including a heater element configured to heat an aerosol-forming substrate to generate an aerosol; a power source; a controller configured to control operation of the heater element, the controller being configured to detect a change in air flow past the heater element: a first data storage recording detected changes in airflow past the heater element and data relating to the operation of the heater element; a second data storage including a database relating changes in airflow and data relating to the operation of the heater element to the properties of the aerosol delivered to the user; and an indicator coupled to the second data storage configured to indicate to the user a property of the aerosol delivered to the user.

Systems and methods for heating and/or humidifying a respiratory gas or gas mixture delivered to a human or animal patient during spontaneous or mechanical ventilation.

In some embodiments, a humidification system includes a heater base having a heater plate, a humidification chamber, and circuit. The circuit can include various conduits, including an inspiratory conduit, expiratory conduit, Y-piece, patient conduit, and/or dry conduit. In use, the chamber contains a quantity of liquid. The heater base heats the heater plate, which in turn heats the liquid to a temperature that causes at least some of the liquid to become vapor, thereby humidifying the gases within the chamber. The gas is delivered to the patient via the inspiratory conduit. Various features can help control the system and ensure the patient receives gases having the desired conditions. These features can be used individually or in various combinations and subcombinations both in existing humidification systems and improved systems for respiratory humidification, laparoscopy, and other purposes.

Various characteristics of a gas flow can be sensed at the end of a respiratory conduit near the patient interface using a sensing module. The sensing module can be removable from the patient end of the respiratory conduit for ease of use and ease of cleaning. The sensor module can transmit sensor data over the same wires used to heat the respiratory conduit.

A device (102) provides respiratory treatment for SDB (including mild OSA) and other respiratory conditions. A flow generator warms and humidifies gas at controlled flow levels. For example, the device (102) delivers breathable gas to the upper airway at flow rates of about 10-35 Liters/minute. Levels of flow rate, temperature and/or humidification of the device may be automatically adjusted in response to the detection of SDB events. The device may also automatically deliver adjustments of any of the levels in accordance with detected phases of respiratory cycles. In some embodiments, the device automatically delivers distinct levels to either of the nares based on independent control of flow to each nare. A warm-up procedure controls temperature and humidity at a desired target during a ramp-up of flow to the set therapy level. A cool-down procedure controls temperature above the dewpoint to avoid condensation internal to the device and patient interface.

A system (10) configured to facilitate humidification of a pressurized flow of breathable gas delivered to a subject (12) comprises a pressure generator (14), a nebulizer (16), a heater (38), one or more hardware processors (22), and/or other components. The pressure generator is configured to generate a pressurized flow of breathable gas for delivery to an airway (24) within a trachea of the subject. The nebulizer is configured to provide fluid droplets (54) to the breathable gas. The heater is configured to heat a volume of the breathable gas before the droplets are supplied to the breathable gas. The breathable gas received by the subject exhibits a target temperature and humidity level at short distance d from the nebulizer due to one or more of a number of the droplets, an average size of the droplets, a gas flow rate, and/or an amount of heating power.

A humidification breathing apparatus for generating and delivering humidified air to a patient at a desired humidity proximate the patient, the apparatus comprising an air flow path and a controller for controlling operation of the humidification breathing apparatus, wherein the controller is configured to operate the humidification breathing apparatus to control humidity at a point in the flow path to achieve the desired delivered humidity proximate the patient based on the patient exhaled humidity and flow.

In one embodiment, a Luer lock connector for use in an insufflation system is described. The Luer lock connector includes: a body comprising a first end, a second end and an interior region; the interior region defining a gases flow passageway allowing insufflation gases to flow through the body from the first end to the second end; and the body being configured to be coupled to a tubing arrangement at the first end and to a patient interface at the second end; wherein, the second end is configured to be coupled to a patient interface fitting of the patient interface, the second end being further configured to seal around an outer surface of the patient interface fitting when the Luer lock connector is coupled to the patient interface; and wherein, the second end forms a seal with the outer surface of the patient interface fitting when the second end and the patient interface fitting are coupled.

A water reservoir for an apparatus for humidifying a flow of breathable gas includes a reservoir base including a cavity structured to hold a volume of liquid and a conductive portion provided to the base. The conductive portion is adapted to thermally engage with a heater plate to allow thermal transfer of heat from the heater plate to the volume of liquid. The conductive portion includes a thin film comprising a non-metallic material, and the thin film includes a wall thickness less than about 1 mm.

The present disclosure pertains to a pressure support system configured to adjust a pressurized flow of breathable gas delivered to a subject. The system is configured to simplify adjustments to humidity and/or temperature control and/or pressure support therapy that enhance the comfort level of the subject during therapy. The system is configured to generate output signals and/or determine various parameters related to the pressurized flow of breathable gas. The system is configured to receive feedback from the subject related to a comfort level of the subject during therapy and automatically adjust the pressurized flow of breathable gas and/or the predetermined therapy regime, provide feedback to the subject, and/or prompt the subject to make manual adjustments based on the output signals, the determined parameters, the feedback, and/or other information.