Improvements in and relating to drug delivery

摘要

A drug delivery apparatus comprising a drug delivery device for selectively delivering drug-laden air or air not laden with the drug; a sensor (4) for monitoring the breathing pattern of a patient; a controller (24) arranged to control the drug delivery device to deliver drug-laden air in pulses which begin when the patient is monitored by the sensor (4) to begin inhalation, the pulses having a duration which is adjusted by the controller (24) on the basis of the monitored breathing pattern of the patient; a feedback indicator (16) which indicates to a patient whether the monitored breathing pattern is effective for inhaling drug-laden air or not; a dose calculator (25) which calculates the dose delivered to the patient; and an indicator (17) which indicates to the patient when a desired dose has been delivered, whereby the apparatus is configured to deliver the full amount of the desired dose in at least 80 % of treatments.