DRY POWDER INHALERS - 3M INNOVATIVE PROPERTIES CO

Title:

DRY POWDER INHALERS

Document Type and Number:

WIPO Patent Application WO/2010/135340

Kind Code:

A3

Abstract:

Dry powder inhalers and dry powder inhaler storage cassettes including a compartment housing an elongate carrier preloaded with a plurality of doses of finely divided powder comprising a biologically active substance, the compartment being configured such that said preloaded doses are sealed within said compartment and such that the carrier may be advanced from the compartment to the chamber through an exit provided with a moisture barrier sealing system, wherein the moisture barrier sealing system is configured and arranged such that it is relaxable during advancement of the carrier, said sealing system being in sealing configuration prior to an advancement of the carrier, relaxed upon an advancement of the carrier and returned to its sealing configuration at the latest after release of the powder associated with said area of the carrier.

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Inventors:

HODSON PETER D (GB)
STEIN STEPHEN W (US)
CHIOU HERBERT C (US)
WANG ZHAOLIN (US)
ROBISON THOMAS S (US)
DOMROESE MICHAEL K (US)
WALBURG BLAKE D (US)

Application Number:

PCT/US2010/035280

Publication Date:

March 31, 2011

Filing Date:

May 18, 2010

Export Citation:

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Assignee:

3M INNOVATIVE PROPERTIES CO (US)
HODSON PETER D (GB)
STEIN STEPHEN W (US)
CHIOU HERBERT C (US)
WANG ZHAOLIN (US)
ROBISON THOMAS S (US)
DOMROESE MICHAEL K (US)
WALBURG BLAKE D (US)

International Classes:

A61M15/00

Foreign References:

US6012454A	2000-01-11
US5619984A	1997-04-15
US6536427B2	2003-03-25
US6698425B1	2004-03-02

Other References: