US 7,040,314 B2 · Aerosol generating devices and methods for generating aerosols suitable for forming propellant-free aerosols

Abstract

Liquid aerosol formulations for generating aerosols include at least one high volatility carrier and a second component. In some embodiments, the liquid aerosol formulation is propellant free. An aerosol generating device generates an aerosol by passing liquid aerosol formulation through a flow passage heated to convert the liquid into a vapor, which is mixed with air to form an aerosol. In some embodiments, particles of the aerosol consist essentially of the second component. The aerosol generator can be incorporated in a hand held inhaler. The aerosol can be delivered to a targeted portion of the lung using the inhaler.

Claims42

Dependent claims

An aerosol generating device, comprising:

a liquid source of a liquid aerosol formulation comprising a high volatility carrier and a second component;
a flow passage in fluid communication with the liquid source;
and
a heater disposed to heat liquid aerosol formulation in a heated portion of the flow passage to produce a vapor which admixes with air to produce an aerosol.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

10/653,934Filed 4 Sep 2003 · us provisional application

Priority

6 Sep 2002

Published

US 2004/0081624 A129 Apr 2004

Granted

9 May 2006

Term ends

Not estimatedThe source records don’t support an estimate.

Classification37 codes

A61K 9/0078
Sprays or powders for inhalation; Aerolised or nebulised preparations generated by other means than thermal energy: for inhalation via a nebulizer…
A61M 11/041
Operated by the vapour pressure of the liquid to be sprayed or atomised: using heaters
A61M 11/042
Using heaters: electrical
A61M 15/008
Indicating or counting the number of dispensed doses or of remaining doses: electronic counters

Aerosol generating devices and methods for generating aerosols suitable for forming propellant-free aerosols

Life of this patent

Aerosol generating devices and methods for generating aerosols suitable for forming propellant-free aerosols

Life of this patent

Abstract

Claims42