3D printable COVID-19 DIY respirator. Aims at helping hospitals cope with a possible shortage of professional respirators during the outbreak.
We are a distributed team of 50+ contributors, mostly spread through France. Makers, developers, university teachers, researchers and medical teams collaborated on this project. Our testing assembly operations are located in Nantes, France.
If you're new there, please read the explanations below. Your contributions are much welcome!
Shortcut links:
Roughly, the idea is as follow: hospitals will soon lack mechanical artificial respirators. We aim at building a pump, and a valve system (controlled by electronics). This way, the breathing cycle can be enforced by proper air routing through the valve system.
The overall system is composed of sub-components that can be plugged together and wired to form an air circuit, namely:
- Air pump (called "Blower");
- Valve system (routing variant) (called "Air Transistor");
- Valve system (depressuring variant) (called "Pressure Valve");
- Venturi valve (called "Oxygen Mixer" + "Venturi Valve"; 2 test variants);
- Air filter casing (called "Filter Box");
- Pipe adapters (called "Adapters");
In order to ensure a proper breathing cycle (inhale + exhale), multiple valves need to be connected together to form a circuit. The motors needs to be controlled in harmony so that the air routing between each valve unit is consistent.
Component | Version | Last Changelog | Ready? | Live CAD Models | Contributors |
---|---|---|---|---|---|
Blower | V13 | Increase air compression rate | โ | link | Cooprint + @baptistejamin |
Air Transistor | V4 | Moved away from the guillotine system | โ | link | @valeriansaliou |
Pressure Valve | V3 | Test the "flap" concept and its accuracy | โ | none | Sebastien Le Loch |
Oxygen Mixer | V1 | Modeling experiment | โ | link | @valeriansaliou |
Venturi Valve | V1 | Modeling experiment | โ | none | N/A |
Filter Box | V1 | Hermetic testing, make multiple caps according to needs | โ | link | @eliottvincent |
Adapters | N/A | Add a test lung adapter | โ | none | @valeriansaliou |
๐ง (work in progress)
๐ง (work in progress)
- Live updates on Telegram: join channel.
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- ๐ฌ๐ง English Video:
- ๐ซ๐ท French Video:
Please open an issue on GitHub to contact us.
๐ฆ View: Animation of the "Air Transistor"
๐ฆ View: Animation of the "Blower"