DEVICE AND METHOD FOR DEAGGLOMERATION OF POWDER FOR INHALATION

Application 890/KOLNP/2005 published 2006-08-18, filed 2005-05-16
A device and method for deagglomerating powder agglomerates for inhalation. The device includes an inlet (20) connected to a chamber (40) and to a powder source for supplying the chamber with powder agglomerates and a flow of gas that define a swirling fluid flow inside the chamber. The device also includes an outlet (22) connected to the chamber for inhalation such that the swirling fluid flow in the chamber can exit from the chamber as a longitudinal fluid flow that is directed along a longitudinal axis (X) of the outlet, and a secondary fluid flow that is directed away from the longitudinal axis of the outlet. A mesh (28) in the outlet prevents powder agglomerates above a predetermined size from traversing the mesh, and reduces the secondary fluid flow relative to the longitudinal fluid flow exiting from the chamber to thereby reduce powder deposition in a mouth and throat of a user. (FIG.1)

Applicant

THE GOVERNORS OF THE UNIVERSITY OF ALBERTA.,
UNIVERSITY OF ALBERTA, C/O RESEARCH SERVICES OFFICE, 222 CAMPUS TOWERS, 8625-112TH STREET, EDMONTON, ALBERTA T6G 2E1, CANADA.

Inventor

FINLAY WARREN WANG ZHAOLIN

International Info

Classification: A61M 15/00
Publication Number: WO 04/050152
Application Date: 2003-11-28

Priority Information

60/430,085 US 2002-12-02