Hand-held inhalable vapor producing device and method
Described herein are systems, devices, and methods for generating and delivering an inhalable vapor or aerosol. In some embodiments, the systems, devices, and methods described herein are used to generate and deliver a vapor or aerosol containing tobacco for use in, for example, traditional smoking or, for example, to deliver a smoking cessation therapy. In some embodiments, the systems, devices, and methods described herein are used for generating and delivering a vapor or aerosol comprising a medicament. For example, in some embodiments, the systems, devices, and methods described herein are used to deliver an inhalable medicament to the lungs of a patient.
1. A hand-held inhalable vapor producing device comprising:
a cartridge with an opening, the cartridge containing a liquid;
a channel outside of the cartridge, continuous with the opening, and positioned to receive the liquid from the cartridge;
a thermal valve having a first conformation that seals the opening and a second conformation that unseals the opening to enable liquid to flow from the cartridge, through the opening, and into the channel;
a conducting plate in fluid communication with the channel, the conducting plate including a plurality of pores that receive the liquid flowing into the channel; and
a heat source in thermal communication with the thermal valve and the conducting plate.
2. The hand-held inhalable vapor producing device of claim 1 , wherein the cartridge includes an ejector that can advance the liquid through the opening and into the channel when the thermal valve is in the second conformation.
3. The hand-held inhalable vapor producing device of claim 2 , wherein the ejector travels frictionlessly within the cartridge.
4. The hand-held inhalable vapor producing device of claim 3 , wherein the cartridge and the ejector are made of glass.
5. The hand-held inhalable vapor producing device of claim 1 , wherein the cartridge is removable from a remainder of the hand-held inhalable vapor producing device.
6. The hand-held inhalable vapor producing device of claim 1 , wherein the cartridge includes a bag that opens to the opening and the liquid is located within an interior of the bag.
7. The hand-held inhalable vapor producing device of claim 6 , wherein the bag is positioned to advance the liquid through the opening and into the channel when the thermal valve is in the second conformation.
8. The hand-held inhalable vapor producing device of claim 1 , wherein the liquid comprises nicotine.
9. The hand-held inhalable vapor producing device of claim 1 , wherein a size of the channel enables capillary action to advance liquid through the channel.
10. The hand-held inhalable vapor producing device of claim 1 , wherein the thermal valve changes from the first conformation to the second conformation upon actuation of the heat source.
11. The hand-held inhalable vapor producing device of claim 10 , wherein the thermal valve comprises one or more materials that change conformation when heated.
12. The hand-held inhalable vapor producing device of claim 11 , wherein the thermal valve comprises a first metallic layer and a second metallic layer, the second metallic layer faces the heat source, and the second metallic layer has a higher coefficient of thermal expansion than the first metallic layer.
13. The hand-held inhalable vapor producing device of claim 12 , wherein the thermal valve comprises a moveable rod that seals the opening in the first conformation and unseals the opening in the second conformation.
14. The hand-held inhalable vapor producing device of claim 1 , wherein the channel has a proximal end adjacent to the cartridge and a distal end adjacent to the conducting plate, the channel widening to a reservoir at the distal end.
15. The hand-held inhalable vapor producing device of claim 14 , wherein the conducting plate is positioned to receive the liquid from the reservoir.
16. The hand-held inhalable vapor producing device of claim 15 , wherein the conducting plate comprises a metal.
17. The hand-held inhalable vapor producing device of claim 16 , wherein the conducting plate comprises titanium.
18. The hand-held inhalable vapor producing device of claim 15 , wherein the conducting plate comprises a ceramic.
19. The hand-held inhalable vapor producing device of claim 1 , wherein the heat source comprises a light source.
20. The hand-held inhalable vapor producing device of claim 19 , wherein the light source comprises a laser.