Abstract
The clinical brain hypothermia treatments by the surface cooling & warming method are experimentally examined using optimal-adaptive and fuzzy control systems on the basis of their common structure of two kinds of subsystems; One is for the realization of physiologically appropriate dynamics using thermal characteristic model and the other is for the compensation of thermal characteristic change of patients.
Both control systems in confirmation of the accurate realization of brain temperature are preciselyy examined under the various experimental conditions using the newly developed water-thermal controlling equipment with resinous mannequin analogous to metabolic and circulatory system of concerning patients.
They ensure the appropriate automatic control of brain temperature with less physiological invasion to patients, as the control deviations of brain temperature, efficiency of heating and cooling with dynamics of water temperature can be kept within the clinically permissible range during its control process. Thus, this structural type of control systems is confirmed useful for the thermal control based on both control algorithms in its clinical application with less influence due to characteristic change and difference of individual patients, which consequently reduces concerning their medical cost, and physical and mental burden of medical staffs.
