Inhalation device for powdered medicaments
US4423724A · kind A · utility
52Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 4, 1981 |
| Grant date | Jan 3, 1984 |
| Priority date | — |
| Expiry date | Jun 4, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2202/064
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An inhalation device for a powdered medicament contained initially in a container, which device comprises a swirl chamber adapted to receive a medicament container and having air inlets thereinto and a mouthpiece in communication therewith; a container receiving cavity also in communication with said swirl chamber; and piercing means operable to pierce a medicament container when in the cavity and to withdraw from the pierced container, said cavity being provided with obstructive means to prevent the container re-entering the cavity after being pierced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.