Design and Development of Double Air Suction Resuscitation Device Using Scotch Yoke Mechanism

Abstract

AbstractAim was to make a low cost, lightweight, portable, automated cardiopulmonary resuscitation (CPR) device, which can be used while shifting patients, or emergency situation and cater to patient’s breathing requirement. Looking at the situations likes Covid-19 or natural disaster, two point air supplies to cater to two patients simultaneously is planned. Proposed design will provide customized air supply with variation in pressure as well as volume of air for maintaining breathing comfort of different age group of patients. The device will be fabricated mainly in three parts, namely actuating mechanism, arrangement for variable air supply pressure, and flow volume and feedback control loop for automated customized operation. Scotch Yoke mechanism has been used to convert rotary motion of DC motor to linear motion. One-point rotary motion is converted to two-point linear motion. Hence, the device may be used to provide CPR to two patient’s simultaneously. Variable speed is attained through PWM that may change current supply which in turn gets stabilized via inbuilt switching IC. The hardware has been incorporated. Similarly, to control flow volume, position of crank pin will be altered by using guide ways via feedback control.KeywordsResuscitation deviceScotch Yoke mechanismAmbu-bagSensor