DRY POWDER INHALER - ORION CORP

Title:

DRY POWDER INHALER

Document Type and Number:

WIPO Patent Application WO2002034320

Kind Code:

A8

Abstract:

A device for delivering a powdered medicament by inhalation comprises an air inlet passage having low pressure-drop and low turbulence for stabilizing air flow before aerosolization, a dosing cup in the region of reduced air velocity to delay aerosolization, a high pressure drop throat to generate a high velocity flow, a rapidly expanding diverging passage to create a free jet of air with high turbulence and an outlet passage having large cross-sectional area to control the rate of dissipation of the free jet. The device is simple yet capable of consistently providing uniform and effective powder aerosolization and deagglomeration over a variety of patient inhalation profiles.

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Inventors:

BROWN DAVID (FI)
KAUPPINEN ESKO (FI)
KURKELA JUHA (FI)
WATANABE WIWIK (FI)
JOKINIEMI JORMA (FI)
MUTTONEN ESA (FI)

Application Number:

PCT/FI2001/000924

Publication Date:

July 25, 2002

Filing Date:

October 26, 2001

Export Citation:

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Assignee:

ORION CORP (FI)
BROWN DAVID (FI)
KAUPPINEN ESKO (FI)
KURKELA JUHA (FI)
WATANABE WIWIK (FI)
JOKINIEMI JORMA (FI)
MUTTONEN ESA (FI)