Apparatus and methods for delivering an amount of aerosolized medicine for inspiration by a patient in response to the occurrence of appropriate delivery point or points in the patient's detected breath flow. The aerosol medication may be administered as one or more pulses having a pulse width, shape,...http://www.google.com.au/patents/US5404871?utm_source=gb-gplus-sharePatent US5404871 - Delivery of aerosol medications for inspiration
