Inhalation devices with a reduced risk of blockage
US5349944A · kind A · utility
48Cited by
10References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1992 |
| Grant date | Sep 27, 1994 |
| Priority date | — |
| Expiry date | Oct 7, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M15/009
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An aerosol inhalation device, having a mouthpiece (12) and a canister (15) of pressurized hygroscopic medicament, the canister (15) being fitted at one end with a dispensing metering valve; wherein a protective barrier (19) is provided between the dispensing metering valve and the mouthpiece (12) so as to eliminate or substantially reduce blockage of the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.