Design of a fuzzy logic controlled thermoelectric~brain hypothermia system

Abstract

Brain cooling in medicine is the most effective method in protecting brain cells during strokes, heart attacks, and brain traumas. This method, called brain hypothermia, is based on the principle that the brain is superficially cooled under controlled conditions in order to minimize cell death. In this study a helmet was designed to locally cool the brain and an effective controller was designed and tested using fuzzy logic in order to test the effectiveness of the helmet for brain hypothermia. For testing the cooling and heating performances of the helmet, currents between 0 and 60 A were applied to the helmet and its characteristic shape. In considering that the helmet could be exposed to external thermal loads, its maximum cooling capacity at different currents was calculated and found to be 153 W. Two applications were was placed inside and the time the system took to re-balance itself was measured. It was observed that this controller design for a thermoelectric brain cooler can be an alternative method for brain hypothermia thanks to its performance.It was determined that it has advantages over other similar systems thanks to features like it is electrically controllable, has a direct connection to the surface to be cooled and thereby provides faster cooling and heating, its balancing of the thermal loads rapidly applied to the system, and that it is easy to set the cooling and heating speeds via software.

Peltier Elements-based Human Brain Hypothermia Treatment

“…Methods Non-surgical hypothermia is a bag of ice and cold air [8]. Many scientists have come up with solutions to the problem of high brain temperature by designing, manufacturing, and developing many devices that help the patient save his life and reduce brain damage by cooling the brain [9]. Kim et al [10] invented an effective way to reduce the body temperature of newborns during Childbirth by taking advantage of the phenomenon of evaporation and the interaction of heat absorption.…”

“…Hermann et al [18] developed a technique for cooling blood in the brain through intravascular catheters to treat acute Stroke. Yavuz [9] designed a Helmet to reduce brain temperature and brain cell damage during strokes or strokes by cooling brain cells. Huber et al [19] developed a study to cool the blood and lower the brain temperature of stroke patients through catheters by injecting cold saline into the internal jugular vein, which carries blood from the head and transports it through the superior vena cava to the heart -and comparing the temperature with the carotid artery.…”

Detailed modeling of a thermoelectric generator for maximum power point tracking

“…They are utilized as small power electric energy sources both to gain electrical energy from waste heats and to contribute to energy efficiency [3][4][5][6].…”