Manufacture of medicinal aerosol canisters
US9694149B2 · kind B2 · utility
8Cited by
9References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2012 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Jul 23, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2270/0421
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The present invention relates to methods of making medicinal aerosol canisters (10), in particular metered dose canisters (10), comprising aerosol formulation comprising medicament particles suspended in liquid propellant, for example for delivery by pulmonary or nasal inhalation as well as medicinal dispensers (100) including such canisters (10), such as metered dose medicinal dispenser in particular pressurized metered dose inhalers, wherein the liquid propellant in some embodiments contains HFA 134a and/or HFA 227, and the propellant component is subjected to one or more ultrasonic probes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.