Relating to dispensing apparatus
US6336455B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1999 |
| Grant date | Jan 8, 2002 |
| Priority date | — |
| Expiry date | Dec 10, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2206/16
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to an inhalation apparatus for dispensing substances for inhalation and, in particular, but not exclusively for dispensing medicinal products. An inhalation apparatus is provided having a housing defining a socket for receiving a pressurized dispensing container, an actuator for receiving a valve stem of the pressurized dispensing container and a cylindrical chamber having an inlet located at a periphery of the chamber and an outlet at or near a center of the chamber. The actuator defines a duct designed to direct product dispensed from the valve stem of the pressurized dispensing container through the inlet of the cylindrical chamber in a direction substantially tangential to the major axis of the cylindrical chamber, the outlet of the cylindrical chamber communicating with a mouthpiece, such that the inhalation by a user on the mouthpiece creates a cyclonic airflow in the cylindrical chamber between the inlet and outlet in which the dispensed product is entrained for inhalation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.