摘要:
A metered dose valve for use in a pressurized metered dose dispenser for dispensing a metered dose of an aerosol formulation comprising particles of a medicament suspended in liquefied propellant, optionally in combination with one or more excipients, the valve comprising a metering chamber and at least one porous, fluid permeable, particulate semi-permeable body, the at least one porous body being positioned within a region of the interior conduit of the valve, for example within the metering chamber, or a pre-metering chamber and/or an internal channel upstream of the metering chamber.
摘要:
Use of metal powder injection molding for the manufacture of a metal valve component, such as a valve stem or a valve body, of a metered dose dispensing valve for use in a medicinal pressurized metered dose dispenser, such as an inhaler.