| 摘要 |
An inhaler for dispensing a dose of an active agent to the respiratory tract of a patient, which inhaler comprises a housing defined by an upper part and a lower part and a mouthpiece which is attached or is adapted to be attached to said housing; wherein said housing includes storage means for storing an active agent and an airway for delivering said dose from the storage means to the mouthpiece in a stream of air or other gas for administration to a patient, characterised in that said upper part and said lower part of the housing are joined together in a substantially airtight fashion by means of a mechanical fixing, such that a gas flow rate of no more than about 45 litres/minute, preferably no more than about 40 litres/minutes, is required in order to propel a dose of said active agent from the reservoir to the mouthpiece for administration to the patient. |
