Metered dose inhaler for fluticasone propionate
AssigneeSmithKline Beecham Corporation
InventorsIan C. Ashurst, Ignatius Loy Britto, Craig Steven Herman, Li Li-Bovet, Michael Thomas Riebe
Life of this patent
Estimating the term…
Abstract
A metered dose inhaler having all or part of its internal surfaces coated with one or more fluorocarbon polymers, optimally in combination with one or more non-fluorocarbon polymers, for dispensing an inhalation drug formation comprising albuterol or a physiologically acceptable salt thereof and a fluorocarbon propellant, optionally in combination with one or more other pharmacologically active agents or one or more excipients.
Claims27
A metered dose inhaler having part or all of its internal surfaces coated with one or more fluorocarbon polymers, optionally in combination with one or more non-fluorocarbon polymers, for dispensing an inhalation drug formulation, comprising a particulate drug and a fluorocarbon propellant, optionally in combination with one or more other pharmacologically active agents or one or more excipients, wherein said MDI comprises a strengthened can having side walls and a base and said base has a thickness of greater than 0.46 mm.
A metered dose inhaler having part or all of its internal surfaces coated with a blend comprising polytetrafluoroethylene and polyethersulfone, said metered dose inhaler containing therein an inhalation drug formulation comprising particulate drug and a fluorocarbon propellant selected from the group consisting of 1,1,1,2-tetrafluoroethane, 1,1,1,2,3,3,3-heptafluoropropane and mixtures thereof, wherein said MDI comprises a strengthened can having side walls and a base and said base has a thickness of greater than 0.46 mm.
A metered dose inhaler having part or all of its internal surfaces coated with a blend comprising polytetrafluoroethylene and polyethersulfone, said metered dose inhaler containing therein an inhalation drug formulation comprising particulate drug and a fluorocarbon propellant selected from the group consisting of 1,1,1,2-tetrafluoroethane, 1,1,1,2,3,3,3-heptafluoropropane and mixtures thereof, wherein said MDI comprises a strengthened can having side walls and a base and said base has a thickness of greater than 0.46 mm.
Dependencies are inferred from the claim text.