Dry powder inhalers with rotating piercing mechanisms and related devices and methods
US8646446B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2009 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Jul 10, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2202/064
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Dry powder inhalers with rotatable piercing mechanisms facilitate the use of dose container assemblies having dose containers arranged in concentric rows. A piercing mechanism is operably associated with the dose container assembly and is configured to pierce sealants that seal a dose container. The piercing mechanism is rotatable such that it can serially alternate between the two rows of dose containers. The piercing mechanism includes a rotatable drum, an elongate piercing member, and a biasing member operably associated with the piercing member. The rotatable drum has an open end, an opposite closed end, and a cylindrical wall that extends from the closed end and terminates at the open end. The closed end includes an aperture formed therein in a location adjacent to the wall. The elongate piercing member is extended and retracted through the aperture to pierce the sealants of a dose container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.