Device and method for deagglomeration of powder for inhalation
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United States of America Patent
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Issued Date -
Jun 7, 2007
app pub date -
Jun 29, 2006
filing date -
Dec 2, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A device and method for deagglomerating powder agglomerates for inhalation. The device includes an inlet connected to a chamber 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 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 of the outlet, and a secondary fluid flow that is directed away from the longitudinal axis of the outlet. A mesh 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.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
THE GOVERNORS OF THE UNIVERSITY OF ALBERTA | TEC EDMONTON 4000 ENTERPRISE SQUARE 10230 JASPER AVENUE EDMONTON ALBERTA T5J 4P6 |
International Classification(s)
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- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Finlay, Warren | Edmonton, CA | 4 | 162 |
Wang, Zhaolin | Edmonton, CA | 41 | 2552 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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