Design and Construction of the Prototype Gloves and Socks for Temperature Control in the Palms and Feet of Children with Shock Condition

This paper aims to design and construction of the palm and foot warmers for pediatric patients, who are in shock situation in the ICU. The designed device was used to reducing the risk of tissue deficiency in the palms and feet according to the requirements of the Queen Sirikit National Institute of Child Health (Children's Hospital). This device acted as a hot air generator, controlled the temperature of the hot air send to the pediatric patient's gloves and socks, which serves to store hot air. The working temperature was in the range of 36.5°C to 37.5°C. This device consists of 2 main parts: 1) hot air generator consisting of air pump, heater chamber, solid-state relay, electromechanical relay, temperature sensors, microcontroller, over temperature protection circuit (40°C), display and alarm. The program control was written with C language and 2) gloves and socks were made from black cotton fabric and connected to the silicone rubber hose. The other end of the hose was connected to the hot air generator. The performance testing on this device according to the standard calibration devices composed of: 1) the results of the internal temperature of gloves and socks testing with the Fluke 289 True RMS Multimeter found that it can control the temperature in the gloves and socks at 36.5°C to 37.5°C after warming up the device for 50 minutes and 60 minutes respectively, according to doctor's requirements and 2) electrical leakage testing results with the Fluke ESA 612 Electrical Safety Analyzer found that a maximum Average leakage current was 85.30μA within the standard recommended by IEC 60601-1 (IEC: International Electrotechique Commission) was not more than 500μA.