OpenVent - 3D printable airflow sensor

thingiverse

During the COVID-19 pandemic, it became starkly clear that a shortage of medical equipment can have a devastating impact. Often, even basic equipment and designs can make all the difference when professional gear is unavailable. This repository contains essential information about an open-source ventilator device. The primary goal of this project is to create a ventilator when no professional or medical equipment is readily available. Easy-to-assemble components are used with a focus on simplicity, availability, and scalability. This project started as part of the #WirvsVirus Hackathon sponsored by the German government and has been intensively developed since then, including expert consultations from medical professionals. The work is also featured in the give-a-breath-challenge and The Global Hack. Please review the full disclaimer carefully before proceeding: The materials and documentation provided are offered with no warranties explicit or implied. No information on this site is intended to provide medical advice. All designs are intended for research purposes only. This website does not represent any official policies or procedures. The project is offered "as is," without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose, and noninfringement. In no event shall the authors or copyright holders be liable for any claim, damages, or other liability, whether in an action of contract, tort, or otherwise, arising from, out of, or in connection with the software or the use or other dealings in the software. Only use this repository, designs, documentation, or provided information if you accept the above disclaimer. Additional discussion, documentation, source code, electronics, and sensor design is available at GitHub (https://github.com/mhollfelder/openvent) and YouTube (https://www.youtube.com/channel/UCw9h6QsYEKY2sfZIYBNuHvw) and DevPost (https://devpost.com/software/openvent-open-source-3d-printable-ventilator). This design represents a further extension or variant based on our evolved design A1. Further extensions and upgrades will be posted here as well, so please check those too. General concept: A printed tube is used to measure differential pressure with two pressure sensors DPS368 from Infineon. Different configurations are shared - we focus on the simple tube with two different diameters (22 and 8mm). This design is currently used in our BVM ventilator design.