Rapidly developable low cost and power efficient portable turbine-based emergency ventilator

Published: 10 August 2021| Version 2 | DOI: 10.17632/b94xgzxsdm.2
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Description

Use of ventilators has always been common in medical scenarios but very expensive to procure or develop; mainly because of expensive components precise instrumentation. Our paper attempts to mitigate that problem by proposing a novel way to rapidly develop a low cost and power efficient portable turbine-based emergency ventilator that uses 3D printing technology and off-the-shelf components. This turbine and valve-based ventilator features most commonly used modes. A unique servo-based pressure release mechanism has been designed that makes the system around 36 times more efficient than solenoid-based systems. Reliability and efficiency have been increased further through the absence of electromechanical component in our novel positive end expiratory pressure (PEEP) valve. Effective algorithms such as feed-forward and PID are used alongside our unique ‘Sensor data filtration Methodology’. It provides an interactive GUI through an app that can be installed on any readily found tablets while the firmware manages the breathing detection algorithm using flow sensor. This modular, portable, energy-efficient and low-noise system ventilator also features swappable battery that can run for 5.6 hours at a stretch and also holds the ability to even run-on solar power. Design files description: 1. 'Assembly 3D Model Files' folder containing 3D models' files for viewing and generating 3D printing files 2. 'Electronics' folder for getting the modular integration instructions 3. 'Firmware' folder for all the necessary codes to be uploaded into the microcontroller 4. 'Project Gallery' folder for system architectures and block diagrams 5. 'Android Application' zipped folder for the Android app development files 6. 'Design Files and BOM.xlsx' spreadsheet file containing details regarding design files and bill of materials including sources. 7. 'LICENSE' containing our license for the Open-Source. 8. 'Project Description and Build Instructions.pdf' containing detailed project description and steps to reproduce the system.

Files

Steps to reproduce

3D Parts Setup: 1. Open the ‘Assembly 3D Model Files’ and find the ‘Ventilator Assembly.step’ file. 2. Open the ‘Ventilator Assembly.step’ file on Fusion360 or any other 3D modelling software that can open this file. 3. Create STL files for each of the parts in this file, which are also mentioned in the ‘Design Files’ section. 4. Open the STL files in a slicing software and upload it on a 3D printer for printing the parts. 5. After the parts are all printed, follow the detailed assembly instruction provided in the ‘Build Instructions’ section above. Electronics Setup: 1. Get all the modules as demonstrated through the [Figure 11]. 2. Connect the modules accordingly using good low resistive wires. Software Setup 1. Use Android Studio software to generate the apk files. 2. Install into the android device. All files can be found in "Android Application" zipped folder. Firmware Setup: 1. Download all the codes from the ‘Firmware’ folder 2. Connect an Arduino development board 3. Upload the code onto it