Dry powder inhalers, related blister devices, and associated methods of dispensing dry powder substances and fabricating blister packages
US7520278B2 · kind B2 · utility
67Cited by
176References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2005 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Jan 26, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/8206
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention includes dry powder inhalers for dispensing and/or holding inhalant formulated dry powder substances and associated fabrication and dispensing methods that can employ an amplitude modulated non-linear signal comprising a plurality of superimposed frequencies, the frequencies corresponding to a priori flow characteristic frequencies of the dry powder being dispensed. The present invention also includes pocket-sized inhalers with an elastomeric flexible pivoting cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.