Metered dose dispensers with porous body
US10335562B2 · kind B2 · utility
9Cited by
30References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2007 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Aug 11, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D83/754
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A pressurized metered dose dispenser (100) for dispensing an aerosol formulation comprising particles of a medicament suspended in liquefied propellant, optionally in combination with one or more excipients, the dispenser comprising an aerosol container (1) equipped with a metered dose valve (10), where a formulation chamber is defined in part by the internal walls of the container, and wherein the dispenser further comprises a porous, fluid permeable, particulate semi-permeable body (40) located within the formulation chamber adjacent to the metered dose valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.