An aerosol inhalator containing has an inner tube forming part of a suction path, a capillary tube extending within the inner tube and configured to discharge a solution therefrom in conjunction with a user's inhalation, and a heater extending in a direction perpendicular to the axis of the inner tube so as to traverse the inner tube and configured to receive the solution discharged from the capillary tube, wherein the heater atomizes the received solution by heating to generate, inside the inner tube, an aerosol to be inhaled by the user.

A non linear, medicated aerosol holding and delivery chamber without sealing valves at the aerosol inlet and outlet ends. There is a low pressure actuated, vacuum relief, drain check valve at the bottom end of the chamber and an overpressure relief valve at the top end adjacent the mouthpiece opening. The vacuum relief, drain check valve has a radial support plate beneath it that allows for the creation of a vortex in the aerosol plume. The drain check valve also provides for the complete return of any condensed aerosol to the nebulizer when closed. The overpressure relief valve efficiently allows dispelling of the patient's air. Both valves aid in the decrease of the MMAD of the medicated aerosol particles. There is no truly enclosed volume defined by the body of the chamber as the mouthpiece is open into the top of the chamber body, free of any valves.

An inhaler device for pulmonary delivery of at least one substance from a drug dose cartridge to an inhaling user, including: a first conduit for conducting a carrier airflow to a proximal opening of a mouthpiece for use by the user; a holder configured to position the dose cartridge within the carrier airflow; and a second conduit for conducting a shunting airflow to the mouthpiece without passing through the dose cartridge position. A controller connected to a valve controls a rate of carrier airflow, for example by controlling the shunting airflow, based on a sensor indication of airflow rate and a target airflow profile.

A dispensing mechanism for an aerosol-generating article is provided, including an expandable buffering reservoir with an inlet and an outlet; a dispensing reservoir of constant volume with an inlet and an outlet; an inlet valve connected to the inlet of the expandable buffering reservoir and being configured to be connected to a liquid storage portion filled with pressurized liquid such that liquid can only flow from the liquid storage portion to the expandable buffering reservoir; an outlet valve connecting the outlet of the expandable buffering reservoir to the inlet of the dispensing reservoir such that the liquid can only flow from the expandable buffering reservoir to the dispensing reservoir; and a volume modifier configured to modify a volume of the expandable buffering reservoir.

Disclosed herein are inhalation devices and methods for storage and release of substances in powder form such as a drug. The inhalation devices can include a plurality of powder chambers for storing a respective dose of a preloaded powdery substance, and an uncovering device for dispensing one dose at a time. The inhalation devices can include an advancing mechanism is arranged to feed the dose ring one powder chamber at a time. The powder chambers can be oriented in the surface of the dose ring and at least one seal is arranged to seal the powder chambers. The powder chambers can be uncovered or opened to at least a portion of an air channel, and the content of the powder chamber is exposed to, and can pass through, the air channel by means of an air flow.

An aerosol-generating system may include a liquid storage portion, a vaporizer, and a pump. The liquid storage portion may be configured to store a liquid aerosol-forming substrate. The vaporizer may be configured to volatilize the liquid aerosol-forming substrate. The pump may be configured to pump air into the liquid storage portion so as to push out a volume of the liquid aerosol-forming substrate from the liquid storage portion and to supply the volume of the liquid aerosol-forming substrate to the vaporizer. A method for generating an aerosol may be performed with the system.

An inhaler comprising a reservoir of an inhalable composition, a heater to selectably volatilize at least some components of the composition, and a power source arranged to selectively supply electrical power to the heater when the user inhales from the inhaler. The power source is arranged to heat the heater to a temperature that will volatilize some, but not all of the components of the composition.

An aerosol generator for generating an aerosol from a fluid, comprising: a vibratable membrane (22) having a first side (24) for being in contact with the fluid and an opposite second side (25), the membrane having a plurality of through holes (26) penetrating the membrane in an extension direction (E) from the first side to the second side, whereby the fluid passes the through holes from the first side to the second side when the membrane is vibrated for generating the aerosol at the second side, each through hole (26) having along its extension direction (E) a smallest diameter (Ds), a larger diameter (DL) that is larger than the smallest diameter and defined by that diameter that is closest to triple, preferably twice said smallest diameter, each through hole having a nozzle portion (32) defined by that continuous portion of the through hole in the extension direction comprising the smallest diameter of the through hole and bordered by the larger diameter of the through hole, characterized in that the ratio of the total length of each through hole (26) in the extension direction to the length of a respective one of said nozzle portions (32) in the extension direction is at least (4), preferably at least (4.5) and most preferred equal to or larger than (5).

The present disclosure relates to electronic smoking articles exhibiting improved moisture control of a reservoir contained therein. The reservoir can be formed of fibrous materials, such as cellulose acetate fiber, thermoplastic fiber, non-thermoplastic fiber, or a combination thereof. The disclosure further provides methods for forming electronic smoking articles and methods of packaging electronic smoking articles (including cartridges thereof) so as to improve moisture control of the reservoir.

Vaporizers apparatuses, including cartridges and vaporizers having fluid-level windows through the body of the vaporizer allowing visualization into the cartridge and the vaporizer; the cartridge is magnetically coupled to the vaporizer.