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Therapeutic Equipment for Brain-Hyperthermia using Convective Spray Cooling

[+] Author and Article Information
Imran Mahmood

Department of Mechatronics and Control Engineering, University of Engineering and Technology, Lahore 54890, Pakistan
imran.mahmood@uet.edu.pk

Ali Raza

Department of Mechatronics and Control Engineering, University of Engineering and Technology, Lahore 54890, Pakistan
aliraza@uet.edu.pk

1Corresponding author.

ASME doi:10.1115/1.4036652 History: Received October 22, 2016; Revised April 07, 2017

Abstract

A new type of therapeutic equipment is designed herein, using concepts of convective heat transfer and spray cooling, to treat patients suffering from brain-hyperthermia. The equipment is aimed to provide emergency treatment in order to prevent disability or possible mortality because thermoregulatory system of the patients fails to maintain a homeostasis. The equipment uses non-contact method of forced convection, applied uniformly at body exteriors. The heat exchanger is designed to contain four independent pipe-sections with orifice openings around the body. The cool-air, maintained within ASHRAE’s thermal comfort bounds, is sprayed through the orifices. Design improvements have been made on the basis of image analysis of the flow. The boundary layer analysis has also been performed over a specially designed mannequin with induced hyperthermia characteristics. The testing indicates a decay of ~6? in 280min with a time constant of 2hrs. Comparative to existing techniques, in addition to being a non-contact approach, the equipment shows better thermoregulatory performance along with a flexibility to accommodate different body contours.

Copyright (c) 2017 by ASME
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