A nasal inhaler for the inhalation of inhalable substances comprise: a canister having an interior reservoir containing pressurised inhalable substances including fluid; a metering valve including a metering chamber and a valve stem defining a communication path between the metering chamber and the interior reservoir, the communication path including an opening configured to permit flow between a transfer space inside the valve stem and the interior reservoir, the interior reservoir being arranged for orientation above the metering chamber whereby gas located within the metering chamber is replaced with liquid from the interior reservoir.

An inhaler (60) has a breath actuated trigger mechanism (100) reactive to an inhalation flow to trigger the release of a substance to be inhaled. The inhaler (60) has an inspiration flow which is subject to a higher degree of flow governing post-triggering than pre-triggering. This allows the triggering flow rate to be closer to, or even higher than, the governing flow rate of the inhaler.

An inhalation-synchronized fluid dispenser device having a body (10; 10′) provided with a mouthpiece (400), a fluid reservoir (100) containing a fluid and a propellant gas being mounted to slide axially in the body (10; 10′), a metering valve (200) including a valve member (210) assembled on the reservoir (100) for selectively dispensing the fluid. The device includes an actuator element (500, 500′, 500″; 550) movable and/or deformable between a non-actuation position and an actuation position; an inhalation-controlled trigger system including an inhalation-sensitive member (60, 61; 65, 66) deformable and/or movable under the effect of inhaling and when deformed and/or moved, moving and/or deforming the actuator element (500, 500′, 500″; 550) from its non-actuation position towards its actuation position; an electronic dose counter (1000); and a signal-transmitter (1100) for communicating, in particular communicating remotely, information relating to the actuations of the device.

An inhaler (10) for the inhalation of inhalable substances comprise: a canister (50) having an interior reservoir (84) containing pressurised inhalable substances including fluid; a metering valve (52) including a metering chamber (82) and a valve stem (54) defining a communication path between the metering chamber and the interior reservoir, the communication path (86) including an opening (106) configured to permit flow between a transfer space inside the valve stem and the interior reservoir, the interior reservoir being arranged for orientation above the metering chamber whereby gas such as air located within the metering chamber is replaced with liquid from the interior reservoir.

An inhalation-synchronized fluid product dispenser device having a body (10) provided with a mouthpiece (400), a product reservoir (100) containing fluid product, and a dispenser mechanism (200). The device has a blocking mechanism (500; 600) for the dispenser mechanism and an inhalation-controlled trigger system having an inhalation-sensitive member (60) deformable and/or movable by inhalation, the inhalation-sensitive member co-operating with the blocking mechanism so that when deformed and/or moved, it enables the dispenser mechanism to be actuated. The device has a protective element (1) the trigger system, the protective element disposed between the mouthpiece and the inhalation-sensitive member and made of a porous material that allows air to pass through it but blocks the passage of water, dust and foreign bodies.

In an embodiment, a metered dose inhaler (MDI) training device is provided herein. The MDI training device may include a housing having an inhalation port, an opening for receiving ambient air, the inhalation port and the opening are fluidly connected to provide an air flow channel, and a valve associated with the air flow channel, the valve having an opened state and a closed state, and an actuation member, wherein the valve is not allowed to enter the opened state if the actuation member is actuated prior to inhalation through the inhalation port.

A nasal delivery device for and a method of delivering substance to a nasal airway of a subject, the nasal delivery device comprising: a mouthpiece (519) through which the subject in use exhales to cause closure of the oropharyngeal velum of the subject; a nosepiece (517) for fitting to a nostril of a subject, the nosepiece including a nozzle (549) through which substance is in use delivered to the nasal airway; and a manually-actuatable substance supply unit (520) for delivering substance through the nozzle of the nosepiece.

Systems and methods are provided for aerosolizing and delivering therapeutic substances in an electronic aerosol delivery device with airflow regulation. Calibrated airflow resistance settings enable adjustment and control of flow velocity and or flow volume of air, aerosolized air, and or entrained aerosol particles, through the device, for optimal aerosol delivery among diverse conditions and applications.

A nasal delivery device for and a method of delivering substance to a nasal airway of a subject, the nasal delivery device comprising: a mouthpiece (519) through which the subject in use exhales to cause closure of the oropharyngeal velum of the subject; a nosepiece (517) for fitting to a nostril of a subject, the nosepiece including a nozzle (549) through which substance is in use delivered to the nasal airway; and a manually-actuatable substance supply unit (520) for delivering substance through the nozzle of the nosepiece.

An example aerosol delivery device includes a mouthpiece having an airflow outlet, and an airflow passage extending between an airflow inlet and the airflow outlet. The example aerosol delivery device further includes a housing configured to receive a cartridge that includes an aerosolizable substance and a vapor element configured to heat the aerosolizable substance, and an internal power source configured to provide electrical power. The example aerosol delivery device further includes a controller coupled to the internal power source to receive a portion of the electrical power and configured to, when the cartridge is installed at the housing, cause the vapor element of the cartridge to heat the aerosolizable substance to release an aerosol into the airflow passage during an inhalation through the airflow outlet, and a connector configured to receive power from an external source to recharge the internal power source.