Dry powder inhaler devices, multi-dose dry powder drug packages, control systems, and associated methods
US6971383B2 · kind B2 · utility
75Cited by
32References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2001 |
| Grant date | Dec 6, 2005 |
| Priority date | — |
| Expiry date | Sep 11, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/50
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Dry powder inhalers (FIG. 1) with integrated active energy patient assist dispersal systems are configured with control systems which provide adjustable energy output responsive to the user's inspiratory capabilities and/or the flowability of the dry powder being administered. The multi-dose dry drug package (FIG. 2) a piezoelectric polymer substrate which flexes to deform and provide mechanical oscillation in a selected region of the package corresponding to the dry powder drug which is dispersed during inhalation by a user. Control system (FIG. 12) employs fuzzy logic to relate in response to a user's inspiratory effort.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.