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Generated: April 20, 2018

DrugPatentWatch Database Preview

Details for Patent: 5,662,271

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Summary for Patent: 5,662,271
Title: Atomizing devices and methods
Abstract:A metered dose inhaler comprises a piston which is mounted in a cavity within a body, and is urged by a pre-loaded spring into a reduced cross-section pressure chamber. The piston may be loaded by means of an actuating rod having a handle, and may be latched in a loaded position by a latching means. A liquid drug (e.g. in aqueous solution) is contained in a collapsible bag. Metered quantities of the drug are successively presented in the pressure chamber, and then subjected to a sudden and great increase in pressure, to eject the liquid drug through an atomising head, to reduce it to fine atomised spray of small mean particle size--for example less than 30 micrometers. Non-return valves control the flow of liquid through the device. The sudden pressure pulse is caused be releasing the spring loaded piston, upon depressing an actuating button connected by the latching means.
Inventor(s): Weston; Terence Edward (Woodbridge, GB2), Dunne; Stephen Terence (Ipswich, GB2)
Assignee: Boehringer Ingelheim International GmbH (DE)
Application Number:08/459,458
Patent Claim Types:
see list of patent claims
Device; Delivery; Use;

Drugs Protected by US Patent 5,662,271

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted
Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted

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Foreign Priority and PCT Information for Patent: 5,662,271

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom9006340Mar 21, 1990
United Kingdom9023767Nov 01, 1990

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Serving hundreds of leading biopharmaceutical companies globally:

Teva
McKesson
Cerilliant
Healthtrust
Accenture
Federal Trade Commission
Chinese Patent Office
Express Scripts
Queensland Health

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