Electronics > Projects, Designs, and Technical Stuff

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

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Enginerding:
I have to get a few hours sleep, since it's very late here in the US.

Dave and Simon, chew on it --

When might be the next time you work on a project that saves the lives of 20,000 people?

Maybe 50,000!



EEVblog:
Someone just email me this:
https://www.facebook.com/pg/VentilAid-113367330296374/posts/

Simon:

--- Quote from: Enginerding on March 31, 2020, 07:21:24 am ---
--- Quote from: EEVblog on March 31, 2020, 07:16:25 am ---
--- Quote from: Enginerding on March 31, 2020, 06:44:43 am ---
--- Quote from: Simon on March 31, 2020, 06:40:51 am ---someone that knows how a ventilator works?

--- End quote ---
Would you like to join the steering committee?

--- End quote ---

I suspect he can't, he's too busy perfecting his sarcasm generator.

--- End quote ---

Honestly not sarcasm.  I'm Autistic, so I speak in a very straightforward way.

I think Simon would be a great asset, which is why I think he'd be great on the steering committee.

-Dan

--- End quote ---

I was the one being sarcastic. Autism and organizing people do not go together, i know that being on the spectrum as well. I am afraid I have nothing to offer, but it seems you are trying to collect a list of people that know about components before you have made a list of what you need which starts right at the top with people that understand how these things are supposed to work as they have to interact with the human body and someone that knows how these things need making safe. No point in a life saving device that fails whilst saving someones life.

In the UK they have 2 approaches, one more stupid than the other because they wanted to play politics over brexit and refused to join the EU procurement effort. One group are turning any available manufacturing to making parts for an existing design whilst the governing parties best mate wanker Dyson is teamed up with a medical company to design one from scratch. Of course the misleading headlines are that Dyson is saving the country by "just making ventilators instead of overpriced fans" no mention of the medical know how he has had to bring in.

Bud:
Please excuse my ignorance- how are you going to  certify and get your ventilators on the hospital floor? They are life saving devices, for which i imagine a procedure or two exist to make that happen.

floobydust:

--- Quote from: Enginerding on March 31, 2020, 05:46:19 am ---[...] Do you mind if I ask you what technical specialties you have?  Thanks mate.

--- End quote ---
I'm one of the old dogs that hang out here. Engineer for 26 years and electronics tech for 10 years before that, in a dozen different industries doing product development. The only biomedical work was controlling artificial limbs for amputees and War Amps, and R&D with doctors on FES for paraplegics.

I keep trying to see if the project is feasible. No amount of good intentions can ensure project success. Why is everyone reinventing the wheel because there is a shortage of the usual wheel?
GM has almost 60 people alone just doing parts procurement for that Ventec ventilator  :palm:
I can't see a community building anything that a hospital would let in their doors - the liability for something that is not to medical standards is just too much. I'm not sure when the possibility of death outweighs that.

In a magical unicorn world, you could walk in to Home Depot and pick up all the parts to make a ventilator. That would be an interesting experiment.
Number one is the air pump - what is to be used? Compressed air source, bellows, turbine fan. Are these parts off the shelf or from the Unicorn Supply Co. ?

The blower in CPAP machines is high performance. Two-stage turbine and high speed maybe 30k RPM brushless motor. I have pictures and a typical patent is US20190334418A1, but I think a decent turbine that could be 3D printed and not fly to pieces would be impossible to make. Have to hack a Dyson although they are yet another company on the 'make a ventilator' bandwagon. They can't do it- the medical standards, safety requirements and liability are all foreign to Dyson. A vacuum cleaner that can kill. No nooby companies are going to step into this, despite the fame and glory.

There are many ventilator/cpap patents that briefly explain what a ventilator does. US8051852B2

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