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Sprint Day 0: An Open Source ventilator project you can believe in.

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EEVblog:
https://opensourceventilator.ie/

And someone has done the hard work for you comparing all the different projects and their status:
https://docs.google.com/spreadsheets/d/e/2PACX-1vTYAfldxoIiO46VAWH1NlhrwFBn9mguqS2bh1spnLEu4AVVN1cj1vaEm6vOp5Z6UnaAbUwd8dslCXdM/pubhtml?urp=gmail_link
But sure, hey, let's start another one  ::)

A developer form the above project shared this with me and commented: "If you like to learn more about open source ventilator projects, while 1001 project teams build 1001 ventilators, there is a also a test team in Texas who have created an overview of what as happening and it becomes clear that it's still a way to go for all until there will be a meaningful product"

SiliconWizard:
So, what about Apollo 13 anyway? :)

Blitzschnitzel:
@all the critics
The reason why ventilators are so sophisticated and complex is that they are designed for versatility. Forced ventilating a comatose or sedated patient is almost trivial. We have figured this out a long time ago. It gets tricky when you have advanced modes like assisted ventilating. A simple machine that squeezes one of those hand operated paramedic ventilators automatically can free up the professional machines for the more complex cases. Also, production isn't at all keeping up with demand. The reason medical professionals are reaching out to the maker community is that they would rather use a simple machine than having patient drown in their own fluids. Yes, in "peace times" a doctor wouldn't even fart in the direction of a homebrew device, but I am active in the opensourceventilator project and it has a surprising number of medical professionals active there.

And if you think the designs worked on are all shite, join and do it better.  :-+


max_torque:
Having worked in Formula 1 motorsport, where time and money are very loosly connected concepts, these ventilator projects are not being approached in the correct way.

For example, the choice of any component is not "which part is best to use for an engineering perspective" ie the normal design and development methodlogy, but actually "how can i use that part that i already know there are 50,000 of sitting on a shelf that i can get delivered tomorrow"

This is a very different challenge indeed!  For a starter, until you know what parts ARE available you can't even start to chose between them.  Realistically, to get any serious number of ventiliators built in an significantly short will take two things

1) a massive "buying" excercise, something the average EE engineer at home is not going to be able to help with, but companies like Ford, Apple, Tesla etc all have huge departments of people who buy things in massive volumes for a liviing!  Even so, realistically, major parts will have to be borrowed from existing product. ie if you can find a valve used on a Ford F-150, and make it work in a ventilator then you just might be able to get 50,000 of them tomorrow, or something out of a commerical product built in the 100,000's.   Nothing else is going to cut the mustard

2) Very large commercial companies to divert massive man power resource to the task. Hundreds, probably thousands of people all trying to source parts, and where it is unlikely any given machine will have the same part in it, simply because those parts dont' exist...


The only way to make it work in the time frame required is to take an existing ventilator and ventilator manufacturer, strip it down, or use the BOM, form a large number of teams, and task each team with getting 50,000 of the individual part to which they are assigned ASAP, or finding another part that could replace it, of which they can get 50,000 of!

Blitzschnitzel:
In the opensourceventilator project are several competing concepts right now. It is not all yet said that this design is going to be pursued but if you look at this feedback thread:
https://gitlab.com/open-source-ventilator/OpenLung/-/issues/135
All parts either easy to stamp or source in the millions. The bottleneck would be the hand operated paramedic ventilator.

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