The present invention detects how much air is inhaled through the inhaler with what time course (including such derived measurements as how much volume is inspired within the bounds of a given flow range) as well as certain events such as the triggering of the release of aerosol. The system can be set...http://www.google.de/patents/US5363842?utm_source=gb-gplus-sharePatent US5363842 - Intelligent inhaler providing feedback to both patient and medical professional
