US 12,370,331 B2
Cartridge for an aerosol delivery system
Robert Gordon Maurice Selby, Melbourn (GB); Clennell Douglas Collingwood, Melbourn (GB); Alon Greenenko, Melbourn (GB); and Hans-Jürgen Hoppe, Melbourn (GB)
Assigned to TTP LC, Melbourn (GB)
Appl. No. 17/280,332
Filed by TTP plc, Melbourn (GB)
PCT Filed Sep. 27, 2019, PCT No. PCT/EP2019/076288
§ 371(c)(1), (2) Date Mar. 26, 2021,
PCT Pub. No. WO2020/065055, PCT Pub. Date Apr. 2, 2020.
Claims priority of application No. 18197367 (EP), filed on Sep. 27, 2018.
Prior Publication US 2022/0031975 A1, Feb. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 15/00 (2006.01); A61M 15/06 (2006.01)
CPC A61M 15/0085 (2013.01) [A61M 15/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A cartridge for an aerosol delivery system, the cartridge comprising:
a fluid reservoir including a first reservoir portion for containing a first liquid, a second reservoir portion for containing a second liquid different to the first liquid, and at least one liquid barrier configured to separate the first and second reservoir portions, wherein the first and second reservoir portions have respective first and second openings at a first end of the cartridge; and
a perforate membrane located at the first end of the cartridge and extending over both of the first and second openings such that a first side of the perforate membrane is in fluid communication with the first and second openings, the first and second openings being configured to supply the first and second liquids to the perforate membrane during use, the perforate membrane comprising a plurality of apertures configured to eject one or both of the first and second liquids from a second side of the perforate membrane in the form of liquid droplets when the perforate membrane is vibrated during use, wherein the second reservoir portion is annular so as to define a ring shape that defines a cavity in which the first reservoir portion is disposed.