Dispenser and method for entraining powder in an airflow
US9283337B2 · kind B2 · utility
3Cited by
38References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2008 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Jul 9, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2206/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present disclosure relates to a method for entraining in an airflow a medicament powder contained in a cavity having a cavity opening. Large airflow vortices are provided, for instance, by use of an obstacle in a flow passage, The airflow with large vortices is arranged to by-pass the cavity opening, thereby generating an eddy in the cavity which contributes to entraining the powder in said airflow. The present disclosure also relates to a medical dispenser, for instance an inhaler, in which the method may be performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.