Valved spacer for inhalation device
US11577033B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2019 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Sep 10, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/583
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An aerosol inhalation spacer for use with a metered-dose inhaler canister is disclosed. The spacer includes a transparent chamber housing having a body with an input end and an output end and defining an interior space. A mouthpiece is connected to the output end of the chamber housing. An inhaler adapter is connected to the input end of the chamber housing. A valve member is disposed between the mouthpiece and the output end of the chamber housing, the valve member includes a one-way inhalation valve and a one-way exhalation valve. A flow indicator is connected to the inhaler adapter and extends into the interior space of the chamber housing for indicating an inhalation flow rate to the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.