A system for use with an inhaler includes an actuator housing. The system includes a loudspeaker disposed within the actuator housing. The loudspeaker is configured to emit an acoustic pulse during use of the inhaler by a patient. The system also includes a microphone disposed within the actuator housing. The microphone is configured to receive reflected sound generated in response to the acoustic pulse. The system further includes a controller communicably coupled to the microphone. The controller is configured to determine a parameter of the oral cavity of the patient based on the reflected sound.

A wound treatment system includes a processor coupled to sensor system(s), a power delivery system, an oxygen concentrator coupled to the power delivery system and including an oxygen outlet coupled to a restricted airflow enclosure provided by a dressing and located adjacent a wound site, and a negative pressure system that includes a negative pressure outlet coupled to the restricted airflow enclosure. The processor receives first sensor information from the sensor system(s), and uses the first sensor information to control the power provided from the power delivery system to the oxygen concentrator in order to control an oxygen flow created by the oxygen concentrator and provided through the oxygen outlet to the restricted airflow enclosure. When the processor receives second sensor information from the sensor system(s), it activates the negative pressure system to create a fluid flow from the restricted airflow enclosure and through the negative pressure outlet.

A medical treatment system, such as a peritoneal dialysis system, may include a control and other features to enhance patient comfort and ease of use. For example, a cycler device may include a heater bag receiving section and a lid mounted to cover and uncover the heater bag receiving section, potentially enabling faster heating of a dialysate. A user interface may be moveable to be received into the receiving section and covered by the lid, if desired. The system may detect anomalous conditions, such as tilting of a housing of the system, and automatically recover without terminating a treatment. The system may include noise reduction features, such as porting pneumatic outputs to a common chamber, and others. The system may also automatically detect any one of several different solution lines connected to the system, and control operation accordingly, e.g., to mix solutions provided by two or more lines and form a needed dialysate solution. A cassette control surface may be arranged to have one or more ports that can detect a presence of a liquid, e.g., to identify if a cassette is leaking or has otherwise been compromised.

A drug delivery device includes a container for storing a drug, the container having a stopper for expelling the drug; an injection drive comprising an energy source for directly or indirectly acting on the stopper to expel the drug; a sensor for detecting contact between the drug delivery device and a body of a patient; and a user interface (UI) for activating or causing the activation of the injection drive. The device is operative for drawing attention to the UI, if the sensor detects contact between the drug delivery device and the body of the patient, to thereby indicate that the injection drive is ready to be activated, which activation is the next step in the drug administration process.

An aerosol-generating system comprising: an aerosol-generating article (1), the aerosol-generating article comprising a single metered dose of an aerosol-forming substrate; an airflow pathway (108) arranged between an air inlet (110) and an air outlet (112); an aerosolisation chamber (116) arranged at a location along the airflow pathway (108) such that the airflow pathway passes through at least a portion of the aerosolisation chamber (116); and a flow controller (122, 124) for selectively controlling the flow of air through the airflow pathway (108), the flow controller (122, 124) having an open configuration in which air can flow into and out of the aerosolisation chamber (116) and a closed configuration in which air is substantially prevented from flowing into and out of the aerosolisation chamber (116); wherein the aerosolisation chamber (116) is configured to open to receive only one aerosol-generating article (1) at a time; wherein the aerosolisation chamber (116) is configured to close to contain the aerosol-generating article (1); the aerosol-generating system further comprising a heating element (118, 120) arranged to heat the aerosolisation chamber (116) when an aerosol-generating article (1) is received within the aerosolisation chamber (116); wherein the aerosol-generating system is configured to heat the aerosolisation chamber (116) containing the aerosol-generating article (1) only when the flow controller (122, 124) is in the closed configuration.

The present disclosure generally relates to the field of aerosol generation devices, and more particularly to electronic cigarettes configured to generation of aerosols from aqueous formulations of nicotine or cannabis products. The present disclosure further provides aqueous cannabinoid compositions for use in the aerosol generation devices.

A drug delivery device includes a housing defining a shell, a drug delivery assembly at least partially disposed within the housing, a cap defining an opening and being adapted to at least partially cover an end of the housing, at least one electronic component, a power source which powers the at least one electronic component, and a switch assembly. The drug delivery assembly comprises a guard which engages an inner surface of the housing and is movable between a first position, a second position, and a third position relative to the housing and is adapted to restrict external contact with a cannula. The switch assembly causes the power source to provide power to the at least one electronic component when the cap is removed from the housing, restrict the power source from providing power when the cap is coupled to the housing and the guard is in the first position, and cause the power source to provide power when the cap is coupled to the housing and the guard is in the third position.

A processor associated with a respiratory therapy device (7040) applies acoustic techniques such as for airpath component identification. The device may include a pressure generator configured to generate a supply of pressurized air from an outlet along an air circuit to a patient interface. The device may include a sensor configured to generate a sound signal representing a sound in the air circuit. The device may include a dampening structure configured to reduce reflection of sound from the flow generator along the air circuit. The processor, such as of a controller, may be configured to process the sound signal so as to identify the patient interface and/or the air circuit. The processing may detect and combine acoustic signatures, such as by alignment and averaging, and/or may flatten a spectrum of the sound signal.

A ventilator with a safe standby mode is provided. The safe standby mode allows a user to disconnect a patient from the ventilator, without the ventilator generating alarms and while maintaining previously entered ventilation parameters. In addition, while in the safe standby mode, a patient connection status is monitored, and a ventilation mode is entered automatically if the ventilator determines that a patient is connected to the ventilator while the ventilator is in the safe standby mode.

A personal vapor inhaling unit is disclosed. An electronic flameless vapor inhaler unit that may simulate a cigarette has a cavity that receives a cartridge in the distal end of the inhaler unit. The cartridge brings a substance to be vaporized in contact with a wick. When the unit is activated, and the user provides suction, the substance to be vaporized is drawn out of the cartridge, through the wick, and is atomized by the wick into a cavity containing a heating element. The heating element vaporizes the atomized substance. The vapors then continue to be pulled by the user through a mouthpiece and mouthpiece cover where they may be inhaled.