Metered dose inhaler and methods thereof
US10758689B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2014 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Aug 22, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/07
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A process and a metered dose inhaler, comprising: an air actuator comprising at least one inlet of liquefied gas (LG), at least one air outlet, at least one first LG-expanding volume and at least one second air-containing volume, the first and second volumes are effectively separated by means of a LG-blocking member; a container with an LG source; said container is in a fluid connection with said LG-expanding volume via the at least one LG inlet; The air actuator is facilitating a metered dose airflow by allowing the expansion of said LG in said at least one LG-expanding volume from its condensed liquid phase to its expanded gas phase. The expansion of said LG facilitates the compression of the air within said at least one air-containing volume, such that a metered dose LG-free air flow is inhalable via at least one air outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.