US Patent 8034002 Apparatus and method for intelligent electronic peak flow meters

An enhanced electronic peak flow meter is provided that combines some of the enhanced electronic features found in other electronic peak flow meters with software for executing a stochastic process control and evaluating the digital respiratory data collected by the meter. The programmed stochastic process control is capable of selecting and calculating any one of a number of pulmonary function parameters including at least one statistical process control variable to determine a pulmonary threshold. Information systems linking doctor's offices and patient's meters are further provided to transmit warning data in cases where the pulmonary threshold is exceeded.