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Pressurized container method and packaging
Patent Name Pressurized Container Method and Packaging Patent Applicant Evans Pharmaceuticals Co., Ltd. Principal Applicant Address Kent County Inventor F.C. Bucker Application (Patent) No. 03415166.9 Date of Application 2003.06.13 Certification Date Approval Notice No. 1665559 Auditing announcement date 2005.09.07 Manual Disc number D0536 Main classification number A61M15/00 Classification number A61M15/00; B65D81/26; B65D75/26 division Original application No. 2001.62.26 GB 0214667.8 Abstract Sealed packing The method for confining a space around ambient pressure, wherein the package comprises a pressurized MDI (metered dose inhaler) container containing the drug, and an HFA (hydrofluoroalkane) propellant selected from the group consisting of HFA 134a, HFA p227 or a mixture thereof. The method includes the following steps: (1) placing an effective amount of HFA adsorbent material and the pressurized container in a sealable package; and (2) sealing the package so that the pressurized container and the adsorbent are at a pressure approximately equal to ambient pressure In the enclosed space within the package; and (3) any leak of HFA propellant is adsorbed in the HFA sorbent so that the enclosed space is maintained at about ambient pressure. Sovereignty 1. A method of maintaining a sealed package enclosed space at or around ambient pressure, wherein the package includes a pressurized MDI (metered dose inhaler) container containing the drug, and an HFA (hydrofluorocarbon) selected from HFA 134a, HFAp 227 or a mixture thereof. Alkane) propellant, wherein the method comprises the steps of (i) placing an effective amount of an HFA adsorbent material and the pressurized container in a sealable package; (ii) sealing the package so that the pressurized container and the adsorbent are The pressure is approximately equal to the enclosed space in the package at ambient pressure; (iii) Any leak of HFA propellant is adsorbed in the HFA adsorbent so that the enclosed space is maintained at about ambient pressure. International Application PCT/GB2003/002558 2003.6.13 International Publication WO2004/002559 English 2004.1.8 Date of Entry into the Country Patent Agency China Patent Agency (Hong Kong) Co., Ltd. Agency Address Agent Wei Xinhua; Zhao Sulin