Details for Patent: 7,637,260

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Summary for Patent: 7,637,260

Title:	Medicament dispensing device with a multimaterial diaphragm bounding a pneumatic force chamber
Abstract:	A metered dose inhaler for use with a pressurized aerosol container which is preferably breath-actuated. A preload is applied to the internal aerosol valve by an amount sufficient to result in a dose release, but this is prevented by the application of a pneumatic resisting force. The inhaler comprises a release device which, upon actuation, releases the resisting force and allows the preload to actuate the aerosol valve. A metered dose of medicament is then released for inhalation by the patient. The pneumatic resisting force is established by a negative pressure region defined in part by a diaphragm. The diaphragm includes a central disk of a first, relatively high stiffness material and a peripheral ring, coupled by a flexure of a second, relatively low stiffness material.
Inventor(s):	Holroyd; Michael (Cambridge, GB)
Assignee:	Norton Healthcare Limited (London, GB)
Application Number:	10/276,531
Patent Claim Types: see list of patent claims	Device;

Drugs Protected by US Patent 7,637,260

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

Foreign Priority and PCT Information for Patent: 7,637,260

PCT Information
PCT Filed	June 08, 2001	PCT Application Number:	PCT/US01/18664
PCT Publication Date:	December 13, 2001	PCT Publication Number:	WO01/93933

International Family Members for US Patent 7,637,260

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Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Argentina	028689	See Plans and Pricing
Argentina	064324	See Plans and Pricing
Austria	274954	See Plans and Pricing
Australia	2001266806	See Plans and Pricing
Australia	6680601	See Plans and Pricing
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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