A ventilator circuit for use in administering medication to a patient includes a housing, a one-way inhalation valve and a one-way exhalation valve. A metered does inhaler receptacle is in fluid flow communication with an interior space of the housing holding chamber. An exhaust conduit communicates between input and output passageways disposed on opposite sides of the interior space.

Described is a dry powder inhaler for inhalation of a dry powder composition. The inhaler includes an external housing that defines an internal passage. The inhaler also includes a mouthpiece, a compartment for holding a dry powder capsule or powder reservoir, and a powder fluidization and deagglomeration apparatus for directing airflow to the dry powder to generate airborne powder particles within the internal passage. When a user inhales through the mouthpiece, a first airflow pattern is generated that has a first airflow resistance, during which the fluidization and deagglomeration apparatus generates airborne dry powder particles within the internal passage. Upon reaching a threshold negative pressure value within the internal passage of the inhaler, a second airflow pattern is generated having a second airflow resistance that is lower than the first airflow resistance, which pulls the airborne dry powder into the user's lungs during the inhalation. Embodiments of elastomeric valves are also described.

A substance delivery module (4) and apparatus (2) for delivering a substance in aerosol form are disclosed. The substance delivery module (4) comprises a substance container (90), a piston (62) and an actuator (100) configured to engage the substance container (90) and urge the substance container (90) onto the piston (62), so dispensing the substance into the through passage (102) of the piston. The actuator (100) and substance container (90) are mounted in the substance delivery module (4) for relative motion, such relative motion bringing the actuator (100) into engagement with the substance container (90). The substance delivery module (4) may be assembled with an aerosol generator (10) and an aerosol delivery conduit (14) to form an apparatus (2) for delivering a substance in aerosol form. The apparatus (2) may further comprise a control module (6).

An atomizing assembly includes a tubing section having an inlet end and an outlet end. The inlet end of the tubing section is connectable to a liquid storage portion, and the outlet end of the tubing section is in fluid communication with an atomizing nozzle. The tubing section is configured to deliver a flow of liquid aerosol-forming substrate through the atomizing nozzle. The atomizing nozzle includes an air channel configured to establish an air flow through the nozzle. The air flow is mixed with the flow of liquid aerosol-forming substrate.

A substance delivery module and apparatus for delivering substance in aerosol form are disclosed. The substance delivery module includes a plurality of substance containers and a plurality of pistons, with each substance container being mounted in the module for cooperation with a dedicated piston. Another substance delivery module is disclosed that includes a piston defining a delivery axis and a substance container, moveably mounted with respect to the piston. The substance container is moveable along the delivery axis and may, for example, be moved toward and onto the piston. Either of the substance delivery modules may be assembled with an aerosol generator and an aerosol delivery conduit in fluid communication with the aerosol generator to form an apparatus for delivering substance in aerosol form. The apparatus may further include a control module.

An electronic cigarette includes a battery assembly, an atomizer assembly and a cigarette bottle assembly. An external thread electrode is located in one end of battery assembly. An internal thread electrode is located in one end of atomizer assembly. The battery assembly and the atomizer assembly are connected by the screw thread electrode. The cigarette bottle assembly is inserted into the other end of the atomizer assembly and both form a cigarette type or cigar type body.

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.

A fluid dispenser device having a dispenser head; an air expeller; and a reservoir containing a single dose of fluid. The reservoir includes a proximal axial end and a distal axial end, and is removably mounted so that after the device has been actuated, the empty reservoir can be removed from the device and replaced by a new full reservoir. The air expeller is adapted to return to its rest position to enable a new actuation with the new full reservoir. The dispenser head includes a proximal perforator tip to perforate the proximal axial end of the reservoir. The device includes a movable perforator member that slides axially around the dispenser head between a loading position and an actuation position and includes a distal perforator tip adapted to perforate the distal axial end of the reservoir when the movable perforator member is moved into its actuation position.

Systems and methods to generate an inhalable vapor in an electronic vaporization device. Described herein are cartridges including a vaporizable material that may be securely connected to a rechargeable base unit.

An electronic cigarette includes a battery assembly and an atomizer assembly within a housing with the battery assembly electrically connected to the atomizer assembly. The housing has one or more air inlets. A liquid storage component is in contact with a porous component of the atomizer assembly, with the porous component having a run-through hole. A heating wire is in an air flow path through the run-through hole.