Aerosol generating device

Patent metadata

Field	Value
Publication number	US-10194693-B2
Application number	US-201414491592-A
Country	US
Kind code	B2
Filing date	Sep 19, 2014
Priority date	Sep 20, 2013
Publication date	Feb 5, 2019
Grant date	Feb 5, 2019

Abstract

Provided herein are methods, devices, kits, and systems for modulating aerosol particle size generated by an aerosol generating device (e.g., electronic nicotine delivery device). Also described herein are methods, devices, kits, and systems for modulating the delivery of aerosol particles generated by an aerosol generating device (e.g., an electronic nicotine delivery device) to the deep lung of a subject.

First claim

What is claimed is:

1. An aerosol generating device, the device comprising an elongated housing comprising:
a. a reservoir comprising a liquid substrate comprising nicotine and a carrier;
b. an air flow channel comprising:
i. a first air inlet;
ii. a heater element, wherein the heater element comprises a coil wrapped around a wick element, wherein the coil and wick element are made of an electrically resistive material that when heated vaporizes the liquid substrate comprising nicotine and a carrier that is delivered onto the heater element;
iii. a tube located within the air flow channel; wherein the tube is in fluid communication with the reservoir and the heater element; and
iv. an outlet, wherein the heater element is located in an aerosol generation region of the air flow channel between the inlet and the outlet, and wherein the device is configured to emit a condensation aerosol comprising nicotine and a carrier from the outlet;
v. a second air inlet, wherein the second air inlet is located between the aerosol generation region and the outlet;

c. a pump connected to the tube, wherein the pump is configured to deliver the liquid substrate comprising nicotine and the carrier through the tube onto the heater element;
d. an air flow switch, wherein the air flow switch is configured to activate the heater element at an air flow rate through the aerosol generating region of less than 1 LPM; and
e. a power supply, wherein the power supply is in electrical communication with the heater element and the air flow switch.

2. The aerosol generating device of claim 1 wherein entrainment air enters the air flow channel through the second air inlet and entrains condensation aerosol particles having a diameter of from about 1 μm to about 5 μm at a rate effective to deliver the condensation aerosol to a deep lung of a user of the device.

3. The aerosol generating device of claim 1 wherein the entrainment air has a flow rate of about 6 liters per minute to about 40 liters per minute (LPM).

4. The aerosol generating device of claim 1 wherein the air flow channel comprises a gas-control valve located between the first inlet and the aerosol generation region, wherein the gas-control valve is configured to limit air flowing through the aerosol generation region of the air flow channel to the a flow rate that generates condensation aerosol particles having a diameter of from about 1 μm to about 5 μm.

5. The aerosol generating device of claim 4 wherein the diameter is a mass median aerodynamic diameter (MMAD).

6. An aerosol generating device comprising:
a housing;
a reservoir in the housing, the reservoir containing a liquid substrate including nicotine and a carrier;
an air flow channel including a first air inlet, a second air inlet, and an outlet;
a heater in an aerosol generation region of the air flow channel between the first air inlet and the outlet, the heater including a coil wrapped around a wick, the coil and wick comprising electrically resistive materials;
the second air inlet located between the aerosol generation region and the outlet;
a pump connected to a tube leading from the reservoir to the heater;
an air flow switch configured to activate the heater at a predetermined air flow rate through the aerosol generating region; and
a battery electrically connected to the heater and the air flow switch.

7. An aerosol generating device comprising:
a housing;
a reservoir in the housing containing a liquid;
an air flow channel in the housing including a first air inlet, a second air inlet, and an outlet;
a heater in an aerosol generation region of the air flow channel between the first air inlet and the outlet;
the second air inlet located between the aerosol generation region and the outlet;
a pump for pumping liquid from the reservoir through a tube to the heater;
an air flow switch configured to activate the heater at a predetermined air flow rate through the aerosol generating region; and
a battery electrically connectable to the heater, the air flow switch and the pump.

8. The aerosol generating device of claim 7 wherein the heater includes a coil wrapped around a wick.

9. The aerosol generating device of claim 8 wherein the coil and the wick comprise electrically resistive materials.

Assignees

• Fontem Holdings 1 Bv

Inventors

• Wensley Martin
• Lloyd Peter

Classifications

• A61M2016/0021

  with a proportional output signal, e.g. from a thermistor · CPC title

• A61M2205/8206

  battery-operated · CPC title

• A61M2016/0024

  with an on-off output signal, e.g. from a switch · CPC title

• A61M2205/3306

  Optical measuring means · CPC title

• A61M15/06 Primary

  Inhaling appliances shaped like cigars, cigarettes or pipes · CPC title