Inhaler apparatus for dispensing accurate and reproducible doses of powder
US6056169A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1998 |
| Grant date | May 2, 2000 |
| Priority date | — |
| Expiry date | Jul 22, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2202/064
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An inhaler (1) for dispensing accurate and reproducible doses of powder. The inhaler includes an expulsion channel (2) opening out in an outlet orifice (3), and is characterized by a combination of or: a pre-dosing device (100) having the powder in individual reservoirs (101), each reservoir (101) containing one dose of powder, and; a transfer device (200) for transferring a dose of powder in full into the expulsion channel (2) on each actuation of the inhaler. The inhaler also includes an air flow source (300) having a pump (301) triggerable by the user the air flow source (300) sending a flow of air into the expulsion channel (2) towards the outlet orifice (3) to expel the dose of powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.