Powder inhalator
US5769073A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1996 |
| Grant date | Jun 23, 1998 |
| Priority date | — |
| Expiry date | Aug 29, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2202/064
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device for dispensing doses of powdered material comprises a housing which houses a cylindrical container. The container has a number of helically arranged compartments each of which contains a respective dose of powdered material. In order to dispense the material from a compartment, that compartment is moved into registry with an airway in the device by means of an indexing mechanism, and the user sucks on a mouthpiece of the housing, which mouthpiece communicates with an air inlet via the airway. The flow of air through the airway ejects the dose of material. The container can constitute a replaceable cartridge. The device is particularly suitable for use as an inhaler for dispensing powdered medicament.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.