Fluidic Multiple Medical Gas Monitor

We will research, design and develop a novel, low cost, reliable, accurate, fluidic -technology-basmedical gas monitor (MMGM) for CO2, O2, N2O and volatile anesthetics made possible by the developmenfluidic integrated circuitry. Gasses are separated and identified by a unique system of scrubbers (eO2 and soda lime for CO2) and because each anesthetic will be known a priori a non-specific scrubberwill be used and logic in a PC will pick the calibration. Gas concentrations are determined from the(due to changes in density and viscosity) at the junction of an orifice-capillary bridge. A fluidicamplifier raises these pressures to useful levels. Sensor outputs will be processed and displayed onmonitoring with clinical accuracies (equals approximately 0.1%) and ranges (0 - 99%) will be possiblhave performance better than conventional full- function gas monitors at substantially reduced costs(e.g., chromatography) techniques are used. The Phase I proof-of-concept will demonstrate monitoringO2,CO2 and N2O and one example anesthetic. Based on this, a nine-channel system will be designed fordemonstration in the Phase Il effort.