Inhaler
US7845349B2 · kind B2 · utility
2Cited by
9References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2005 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Feb 8, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/583
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An inhaler (1) for the delivery of a dose of powdered medicament for inhalation by a user comprising a housing (2) containing a cylinder (5) defining a chamber (5a) and a piston (6) movably received in the cylinder to enable a user to generate a charge of compressed air in the chamber to entrain a dose when the charge is released, wherein the cylinder and the piston include co-operating means (8, 9) thereon operable to draw the piston into the cylinder to compress a charge of air in the chamber in response to rotation of the piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.