An apparatus and method are disclosed for monitoring physiological parameters associated with the ventilation of infants during assisted ventilation. The infant is placed in a plethysmograph and various sensor means are used to measure flow of gas into and out of the plethysmograph and infant respiration....http://www.google.com.au/patents/US4972842?utm_source=gb-gplus-sharePatent US4972842 - Method and apparatus for precision monitoring of infants on assisted ventilation
