Dispensing apparatus
US6866039B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2001 |
| Grant date | Mar 15, 2005 |
| Priority date | — |
| Expiry date | Oct 3, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/0625
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a disposable dispensing apparatus for delivering a powdered product nasally or orally. The apparatus comprises a housing (1) defining an outlet (7) and a shaft (32) having a storage chamber (33) therein for a product provided with a first inlet (34) and a first outlet (35). A sheathing means (4) is slidably mounted on the shaft and has a second inlet (42) and a second outlet closed by a frangible membrane (44). There is also provided a variable volume means (2) operatively connected to the shaft. The shaft is movable, on operation of the variable volume means to reduce the variable volume so as to pressurize gas in an interior of the variable volume means, from an initial storage position in which the first and second inlets are out of alignment so as to close a gas flow path, to a dispensing position in which the first and second inlets are brought into alignment by action of the housing against the sheathing means. At the same time, the frangible membrane is ruptured by the shaft so as to open the gas flow path, such that pressurized gas from the interior of the variable volume means is discharged along the gas flow path comprising the first and s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.