Abstract: A mouthpiece assembly for an inhalation device including a replaceable substrate component and a replaceable substrate component therefor. The mouthpiece assembly includes a mouthpiece which is essentially a hollow tube within which fluid flow can occur along a substantially longitudinal axis thereof. Within the mouthpiece, a cavity region is formed which is adapted to receive and locate the substantially planar elongated substrate component, such that it interacts with the fluid flow when occurring. The substrate component includes a substrate which can be excited sufficiently to cause aerosolization, and the substrate is fixedly mounted within the substrate component in an orientation and location whereby a channel formation or a conduit of the substrate component at least partially coincides with the cavity region, and thus the surface of the substrate in that cavity region is exposed to, and may be entrained within, whatever fluid may be flowing in that channel or conduit.

Abstract: A method of controlling the generation of an aerosolised composition in an inhalation device having a heater arranged to heat an aerosolisable composition, the method comprising: controlling the power delivered to the heater such that the heater is heated from an ambient temperature to a first temperature, wherein the first temperature is below a temperature at which the aerosolisable composition is aerosolised; delivering a predetermined amount of power to the heater such that the temperature of the heater is increased from the first temperature to a second temperature, wherein the second temperature is greater than or equal to a temperature at which at least a portion of the aerosolisable composition is aerosolised.

Abstract: An inhalation device includes a mouthpiece and a heater having a rigid planar substrate which supports at least one resistive element portion applied over a first region of at least one surface of the substrate, and a pair of contacts each connected to the at least one resistive element portion at one end of the contacts and applied over a second region of the at least one surface of the substrate. The substrate supports an aerosolizable composition deposited on the substrate above the resistive element portion of the heater. The mouthpiece has at least a fluid inlet and a fluid outlet proximate rear and front ends thereof respectively. The heater is disposed within the mouthpiece with at least portions of the contacts being both exposed and accessible so that an electrical connection can be readily achieved when the rear end of the mouthpiece is connected to the inhalation device.

Abstract: A method of controlling the generation of an aerosolised composition in an inhalation device having a heater arranged to heat an aerosolisable composition, the method comprising: controlling the power delivered to the heater such that the heater is heated from an ambient temperature to a first temperature, wherein the first temperature is below a temperature at which the aerosolisable composition is aerosolised; delivering a predetermined amount of power to the heater such that the temperature of the heater is increased from the first temperature to a second temperature, wherein the second temperature is greater than or equal to a temperature at which at least a portion of the aerosolisable composition is aerosolised.

Abstract: A mouthpiece assembly for an inhalation device including a replaceable substrate component and a replaceable substrate component therefor. The mouthpiece assembly comprises a mouthpiece which is essentially a hollow tube within which fluid flow can occur along a substantially longitudinal axis thereof. Within the mouthpiece, there is defined a cavity region which is adapted to receive and locate the substantially planar elongate substrate component such that it interacts with said fluid flow when occurring. The substrate component includes a substrate which can be excited sufficiently to cause aerosolisation, and the substrate is fixedly mounted within the substrate component in an orientation and location whereby a channel formation or a conduit of the substrate component at least partially coincides with said region and thus the surface of the substrate in that region is exposed to, and may be entrained within, whatever fluid may be flowing in that channel or conduit.

Abstract: An inhalation device includes a mouthpiece and a heater having a rigid planar substrate which supports at least one resistive element portion applied over a first region of at least one surface of the substrate, and a pair of contacts each connected to the at least one resistive element portion at one end of the contacts and applied over a second region of the at least one surface of the substrate. The substrate supports an aerosolizable composition deposited on the substrate above the resistive element portion of the heater. The mouthpiece has at least a fluid inlet and a fluid outlet proximate rear and front ends thereof respectively. The heater is disposed within the mouthpiece with at least portions of the contacts being both exposed and accessible so that an electrical connection can be readily achieved when the rear end of the mouthpiece is connected to the inhalation device.