Sensing airflow and delivering therapeutic gas to a patient. At least one example embodiment is a method including: sensing, by a delivery device, that multiple breathing orifices are open to flow; and during a plurality of subsequent inhalations in which multiple breathing orifices are open to flow; and delivering, by the delivery device, a bolus of therapeutic gas to only one breathing orifice during each inhalation, and alternating delivery location in subsequent inhalations. The example delivering may further comprise: supplying therapeutic gas only from an accumulator during a first portion each inhalation; dispensing therapeutic gas from the accumulator and from a pressure regulator during a second portion of each inhalation, the second portion immediately subsequent to the first portion.

A detection device for detecting characteristics of a mixed fluid containing different types of substances with different thermal properties within a prescribed range, includes: one or a plurality of heaters for heating the mixed fluid; a plurality of temperature detectors for detecting the temperature of the mixed fluid heated; a flow rate calculation unit for calculating the flow rate of the mixed fluid using the output from at least a portion of the plurality of temperature detectors; a correspondence relation storage unit that stores the correspondence relation between the output from the temperature detectors for a prescribed flow rate and the mixture ratio of the substances in the mixed fluid; and a mixture ratio calculation unit for calculating the mixture ratio of the substances in the mixed fluid on the basis of the output from the temperature detectors and the correspondence relation.

This disclosure describes systems and methods for providing a high pressure controlled proportional assist ventilation breath type during ventilation of a patient. The disclosure describes a novel breath type that reduces ventilator support (or a percent support setting) based on the occurrence of a predetermined number of high pressure alarms.

An electronic device for producing an aerosol for inhalation by a person includes a mouthpiece located at one of opposite longitudinal ends of the device; a liquid container; a transducer that, when actuated, causes a liquid from the container to be aerosolized such that the aerosol may be inhaled from the device by a person through the mouthpiece; and circuitry and a power supply for actuating the transducer. The mouthpiece, the container, and the transducer are located in-line along a longitudinal axis of a housing of the device extending between the opposite longitudinal ends of the device. The container is located between and separates the transducer and the mouthpiece. The container and the transducer are contained within a cartridge that is insertable into and removable from the housing of the device. The container and the transducer are replaceable by the person when the liquid in the container is depleted.

One variation of a method for video conferencing includes, during a setup period: accessing a test video feed; and generating a face model, representing facial characteristics of a first user depicted in the test video feed, based on features detected in the test video feed. The method also includes, during an operating period: accessing a video feed; representing constellations of facial landmarks, detected in frames in the video feed, in a feed of facial landmark containers; representing sets of facial muscle actions, detected in frames in the video feed, in a feed of facial expression containers; and transforming the feed of facial landmark containers, the feed of facial expression containers, and the face model into a feed of synthetic face images according to the synthetic face generator.

The invention relates to an ultrasonic mist inhaler (100), comprising: —a mouthpiece (1) for inhaling the mist, —a liquid reservoir structure (2) comprising a liquid chamber (21) adapted to receive liquid to be atomized, —a sonication chamber (22) in fluid communication with the liquid chamber (21), wherein at least part of the liquid reservoir structure (2) and the mouthpiece (1) form the sonication chamber (22).

A ventilator includes a bidirectional breath detection airline and a flow outlet airline. The flow outlet airline includes an airline outlet. The flow outlet airline is configured to be connected to an invasive ventilator circuit or a noninvasive ventilator circuit. The breath detection airline includes airline inlet. The airline inlet is separated from the airline outlet of the flow outlet airline. The ventilator further includes a pressure sensor in direct fluid communication with the breath detection airline. The pressure sensor is configured to measure breathing pressure from the user and generate sensor data indicative of breathing by the user. The ventilator further includes a controller in electronic communication with the pressure sensor. The controller is programmed to detect the breathing by the user based on the sensor data received from the pressure sensor.

A system includes a converter configured to electrically couple to a power source and to a heating element of a vaporizer atomizer. The converter can be further configured to receive a first voltage from the power source and provide a second voltage to the heating element. The converter can be a direct-current to direct-current converter. A power monitor configured to electrically couple to the heating element, measure a current through the heating element, measure a voltage over the heating element, calculate a power and/or resistance, and output a control signal to the converter. The converter can be configured to be controlled by the control signal to vary the second voltage to maintain a target power or a target temperature over the heating element. Related apparatus, systems, techniques and articles are also described.

A mist inhaler device (200) for generating a mist for inhalation by a user. The device comprises a mist generator device (201) and a driver device (202). The driver device (202) is configured to drive the mist generator device (201) at an optimum frequency to maximise the efficiency of mist generation by the mist generator device (201).

A system and method for measuring the effectiveness of a dose from an inhaler on a user is disclosed. The inhaler includes a drug container and a dosing mechanism coupled to the drug container to aerate a dose from the drug container. The dosing mechanism provides the aerated dose to the user. A sensor interface is in communication with a physiological sensor. The physiological sensor is attached to a user to sense a physiological response to the dose. Physiological data is sent to the sensor interface. A controller is coupled to the sensor interface to collect the sensed physiological data from the user corresponding to the time that the aerated dose is delivered to the user. The effectiveness of the dose may be determined from the collected data. The dose amount or frequency may be changed or the drug may be changed based on the collected data.