Low cost Ventilator

Ambu bag
checking dimension before wiring
Trial with external power source(proof of concept)

Inspiration

What inspire us is the serious situation the whole world is facing today due to COVID19. And due to the over crowded hospitals and the lack of ventilators we tried to figure out something that could help in this problem.

What it does

This device use the standard ordinary Ambu bag (which is manual) and some of the shelf electronics (arduino, motor driver and DC motor) to make low cost easy to make small ventilator that runs automatically and can be controlled to adjust how many breath per minute that reaches the patient.

How we built it

We used the normal Bag valve mask that use normal air and also have input for oxygen concentration with reservoir bag for oxygen, it also have a valve for reducing pressure if a child patient is using it. We designed parts for the ventilator body and we used 4mm CNC laser cutted wood for less time and cost (those parts can be 3D printed but will require more time). Also 3D printed parts are designed for body parts assembly and fitting and also for hose extension for the mouse mask. for controlling the device we used arduino uno and a L298 motor driver which is easy to connect and available everywhere.

Challenges we ran into

One of the challenges is the connectors design, we wanted it to be universal and to work on every standard dimension hose and the common ambu bag. Other challenge was to print and try each part in limited time to proof the concept.

Accomplishments that we're proud of

We are proud that this project will be opensource for anyone to replicate and use it. we also proud that we made everything from scratch.

What's next for Ventilator

The next step is to make it more reliable and easier for assembly with one power input from Ac source like the normal plug. We also want to add batteries so it can run for like 120 minutes in case of power lose.