Breath actuated dry powder inhaler and tape dose strip
US7322353B2 · kind B2 · utility
7Cited by
15References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2004 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Nov 10, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2206/16
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dry powder inhaler, including a housing having an airflow path leading from an inlet, past a powder release location, to a mouthpiece; a drive spool engaged with a capstan adjacent to the powder release location; a spring biasing a ratchet into engagement with the drive spool; and a breath trigger in the airflow path. The breath trigger is moveable from a first position, wherein the breath trigger holds the ratchet, to a second position, wherein the breath trigger releases the ratchet to allow the ratchet to turn the drive spool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.