摘要:
Propellant mixtures and medicament aerosols which contain them are described for micronising medicaments for pulmonary use. The propellant mixture is in a subcritical state and contains at least one component from a first class of propellant gasses and at least one component from a second class of propellant gasses. The first class includes propellant gasses with an evaporation enthalpy of 200 kJ/kg or less at 25 °C and a vapour pressure of 20 bars or more at 25 °C, and the second class includes propellant gasses with an evaporation enthalpy of 300 kJ/kg or more at 25 °C and a vapour pressure of 10 bars or less at 25 °C. By using this propellant mixture in a medicament aerosol, micronised medicaments are obtained in which approximately 80 % by weight of the generated particles have less than 8 νm diameter.
摘要:
A metering aerosol dispensing device comprising an aerosol container (23); a nozzle (31, 32) that is arranged in a nozzle body (30), whereby the aerosol is dispensed via said nozzle when the aerosol container (23) is pushed against the body (30) of the nozzle once the metering aerosol dispensing device is actuated; a meter (1, 2, ,4) that counts the number of times that the metering aerosol dispensing device is actuated; and an actuating device (10) that enables the meter (1, 2, 3, 4) to move forward when the metering aerosol dispensing device is actuated. The invention is characterized in that the actuating device (10) is designed and arranged in the metering aerosol dispensing device in such a way that the body (30) of the nozzle is accommodated in the interior of the actuating device (10) and the nozzle (31) is released in order to produce aerosol in an unrestricted manner.
摘要:
Propellant mixtures and medicament aerosols which contain them are described for micronising medicaments for pulmonary use. The propellant mixture is in a subcritical state and contains at least one component from a first class of propellant gasses and at least one component from a second class of propellant gasses. The first class includes propellant gasses with an evaporation enthalpy of 200 kJ/kg or less at 25 DEG C and a vapour pressure of 20 bars or more at 25 DEG C, and the second class includes propellant gasses with an evaporation enthalpy of 300 kJ/kg or more at 25 DEG C and a vapour pressure of 10 bars or less at 25 DEG C. By using this propellant mixture in a medicament aerosol, micronised medicaments are obtained in which approximately 80 % by weight of the generated particles have less than 8 mu m diameter.
摘要:
The present invention relates to a meter, especially a meter for metering aerosol devices, basically consisting of four disk units that are arranged in a parallel position and located on the same axis.