🦠 COVID-19 Respirator

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!

⚠️ NOT READY YET, FURTHER INFORMATION WILL COME SHORTLY!

Shortcut links:

Concept

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.

Components

Mechanics

Component	Version	Last Changelog	Ready?	Live CAD Models	Contributors
Blower	V13	Increase air compression rate	❌	link	Cooprint + @baptistejamin
Air Transistor	V4	Moved away from the guillotine system	✅	link	@valeriansaliou
Pressure Valve	V3	Test the "flap" concept and its accuracy	✅	none	Sebastien Le Loch
Oxygen Mixer	V1	Modeling experiment	❌	link	@valeriansaliou
Venturi Valve	V1	Modeling experiment	❌	none	N/A
Filter Box	V1	Hermetic testing, make multiple caps according to needs	❌	link	@eliottvincent
Adapters	N/A	Add a test lung adapter	✅	none	@valeriansaliou