Dry powder inhaler device
US12064547B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2020 |
| Grant date | Aug 20, 2024 |
| Priority date | — |
| Expiry date | Sep 22, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2206/16
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Dry powder inhalers are described. The dry powder inhaler includes an air inlet, a reservoir and an airway assembly. A mouthpiece airway is connected to a first airway of the airway assembly. An airway head is attached to the airway assembly and it extends into the reservoir cavity. In certain embodiments, the airway head has a sharpened or beveled edge. At least one airway assembly opening is present in the airway assembly for connecting the reservoir cavity to the first airway. Methods for dispensing dry powder into an airway of a dry powder inhaler and inhaling dry powder from a dry powder inhaler is also disclosed. Embodiments of a dry powder inhaler having a two-stage air movement are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.