The present disclosure relates to aerosol delivery devices comprising a power unit and a cartridge that is configured for engagement with the power unit. In particular, the cartridge can be configured for rotation about a longitudinal axis thereof so as to be insertable into a chamber of the power unit in a plurality of different orientations. Further, the aerosol delivery device can include processing circuitry that can be configured for detection of the cartridge orientation and execution of a control function assigned to the respective orientation.

Vaporization element, device and method for vaporizing phyto material. A hollow member defining a fluid pathway is positioned proximate a heating element with a phyto material contact surface. An electrical heater is positioned on the opposite side of the phyto material contact surface. Phyto material or extract deposited on the phyto material contact surface can be vaporized by heat from the electrical heater. The vapor can enter the fluid pathway and pass through the hollow member to an inhalation aperture. The electrical heater may be powered by an electrical power source provided in a support unit. The hollow member can be mounted to a vapor processing device that cools and/or filters the vapor before it reaches the inhalation aperture. The support unit may have securement mechanisms to attach the vapor processing device to the vaporization device.

A patient interface is disclosed that includes: a plenum chamber pressurisable to a therapeutic pressure; a seal-forming structure joined to the plenum chamber and comprising a nasal portion, an oral portion, and at least one hole configured to deliver a flow of air at said therapeutic pressure to at least the patients nares in use, the seal-forming structure constructed and arranged to maintain said therapeutic pressure in the plenum chamber throughout the patients respiratory cycle in use; a vent comprising a plurality of holes configured to allow a continuous vent flow from an interior of the plenum chamber to ambient; a positioning and stabilising structure comprising at least one tie and being configured to hold the seal-forming structure in a therapeutically effective position on the patient's head in use; and a textile portion configured to contact the patients face.

A heating element assembly for a vaporizing apparatus can include a housing, a heating element disposed within the housing, a magnetic connector, and a spacing member. The housing can comprise an outer wall defining an inner bore and a base portion disposed within the inner bore, the base portion defining an upper well portion and a lower well portion. The upper well portion can receive at least a portion of a therapeutic agent container. The heating element can increase in temperature when a current is applied. The magnetic connector can be disposed at least partially within the housing and coupled to the heating element. The spacing member can be disposed between the heating element and the magnetic connector. The magnetic connector can be configured to couple an electric power source.

Apparatus and methods are described for use with a vaporizer that vaporizes at least one active ingredient of a plant material. In response to receiving a first input to the vaporizer, the plant material is heated, in a first heating step. An indication of the temperature of the plant material is detected, and, in response to detecting an indication that the temperature of the plant material is at a first temperature, the first heating step is terminated, by withholding causing further temperature increase of the plant material. The first temperature is less than 95 percent of the vaporization temperature of the active ingredient. Subsequently, a second input is received at the vaporizer. In response thereto, the plant material is heated to the vaporization temperature, in a second heating step. Other applications are also described.

Apparatus and methods are described for use with a vaporizer that vaporizes at least one active ingredient of a material. In response to receiving a first input to the vaporizer, the material is heated, in a first heating step. An indication of the temperature of the material is detected, and, in response to detecting an indication that the temperature of the material is at a first temperature, the first heating step is terminated, by withholding causing further temperature increase of the material. The first temperature is less than 95 percent of the vaporization temperature of the active ingredient. Subsequently, a second input is received at the vaporizer. In response thereto, the material is heated to the vaporization temperature, in a second heating step. Other applications are also described.

A pump arrangement for powering a pump in providing a controlled volume of water to a drip nozzle in a drip-feed humidifier. The pump arrangement includes: a pump having a solenoid; a processing unit; and a power supply electrically connected to the solenoid via a switch which is controlled by the processing unit. The power supply is structured to supply power to the solenoid via the switch. The processing unit is programmed to modulate the power provided to the solenoid via the switch such that the power is supplied to the solenoid according to a mirror image power profile for each actuation of the solenoid for retracting the armature. The mirror image power profile includes: an initial portion which decreases at a third overall rate, an intermediate portion which decreases at a second overall rate different than the third overall rate, and a final portion which increases at a first overall rate.

Features relating to vaporizer devices configured to allow for user control of a vaporizer session are provided. Session size selection and temperature selection options allow for a user to select a desired session size and a desired temperature for the vaporizer session. A session control user interface is provided on a user device to allow for user selections and to provide for user viewing of a status of the vaporizer session.

A power supply unit for an aerosol inhaler includes: a power supply able to discharge power to a load for generating an aerosol from an aerosol source; a connector able to be electrically connected to an external power supply; a control device configured to control at least one of charging and discharging of the power supply or configured to be able to convert power which is input from the connector into charging power for the power supply; and a zener diode provided between the connector and the control device so as to be connected in parallel with the control device. A maximum value of zener voltage of the zener diode is lower than a maximum operation guarantee voltage of the control device.

A high flow therapy system for delivering heated and humidified respiratory gas to an airway of a patient includes a respiratory gas flow pathway for delivering the respiratory gas to the airway of the patient by way of a non-sealing respiratory interface; wherein flow rate of the respiratory gas is controlled by a microprocessor, a mixing area for mixing a first gas and a second gas in the respiratory gas flow pathway, a humidification area downstream of the mixing area and configured for humidifying respiratory gas in the respiratory gas flow pathway, and a heated delivery conduit for minimizing condensation of humidified respiratory gas.