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 Litigation and PTAB cases:	See patent lawsuits and PTAB cases for patent 7,637,260
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

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