Inhalation device
US6892728B2 · kind B2 · utility
68Cited by
4References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2001 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | May 16, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/44
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to an inhalation device for use with an inhaler (5) comprising a dispersion chamber (18) for fluid communication with the inhaler (5) and a suction chamber (19) in fluid communication with the dispersion chamber (18). The suction chamber (19) is constructed to enable the internal volume of the suction chamber (19) to be increased during use thereby producing a negative pressure in the dispersion chamber (18). In this way, the substance to be inhaled can be drawn from the inhaler into the dispersion chamber (18) for subsequent inhalation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.