Inhalation device employing blister packs with cavities and alignment slits
US6637431B2 · kind B2 · utility
84Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2001 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Jun 17, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S206/828
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a blister pack (12) having a plurality of blisters (13) each holding a dose of a powdered medicament comprising a lower base (18) containing a plurality of cavities (19) for the powdered medicament and an upper sealing foil layer (20) which covers the lower base (18) to form the blisters (13). Each cavity (19) is provided with at least one adjacent slit (21) formed by scoring the foil layer (20) and a lower base (18). The slit (21) ensuring accurate penetration of a cavity (19) by a suction tube through which a user can inhale the contents of the cavity (19).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.