Inhalation device
US6321747A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1999 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | Jul 7, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2202/064
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Inhalation device comprising a body (55) defining a reservoir (56) for medicament in the form of a powder, an outlet (57) through which a user can inhale, and a dosing member (53) with at least one metering recess formed therein. The dosing member (53) is moveable between a first position in which the at least one metering recess communicates with the reservoir (56) to receive a dose of powder therefrom and a second position in which the at least one metering recess communicates with the outlet (57) to permit the user to inhale the dose. The at least one metering recess is formed in a face of the dosing member which is urged into contact against a similar mating face of the body at the lower end of the reservoir to form a dynamic seal. At least one of the faces (51) is made of a flexible material having a hardness of less than 80 Shore A.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.