APP-based Medical Device for Education and Training of Inhalation Technique

The use of MDI or DPI requires different inhalation techniques and flows, which makes correct inhalation technique more challenging if patient use different types of inhaler devices. Healthcare providers may assess inhalation technique by observation and in addition PIF may be measured by manual meter. However, this does not capture all relevant information about patient's ability to correctly inhale medication and handle prescribed inhaler(s) and do not give instant and automated feedback on the inhalation technique to user. For instance, DPI users should reached a sufficiently high PIF within the first 0.4 seconds \[18\] and MDI users inhalation time should exceed 4 seconds in adults (2-3 seconds in children) in order to optimize lung deposition of the aerosol during a low PIF \[19\]. The app-based inhalation medical device gives automated feedback on inspiratory flows that are specific DPI and MDI devices.