Can anyone explain why normal ventilators don't just use flow meters on compressed air with a solenoid? A standard pilot valve pneumatic solenoid can switch much faster than this. with regulated air pressure, and an air filter on the air, it seems possible to make it work pretty easily just using compressed air.
Low-Cost Arduino-Based Ventilator
41–50 of 148 posts
Re: Low-Cost Arduino-Based Ventilator
#42Earlier quoted context omitted.
Death is also an easy way to hurt your lungs. I hope nobody is dumb enough to use something like this in place of visiting a hospital, but if hospitals are overrun this is better than nothing.
No, this is just something. This something is not necessarily better than nothing. It could be an awful lot worse than nothing, especially since it's coming from GitHub and not somewhere like the Red Cross or MSF, with experience of medical care in tough environments , that knows the difference between "actually better than nothing" and "just something".
This is like someone saying "never put your cryptography project on Github, it's dangerous!"
This person isn't necessarily saying "Go build this if you have trouble breathing", it's a proof of concept.
Re: Low-Cost Arduino-Based Ventilator
#43Can anyone explain why normal ventilators don't just use flow meters on compressed air with a solenoid? A standard pilot valve pneumatic solenoid can switch much faster than this. with regulated air pressure, and an air filter on the air, it seems possible to make it work pretty easily just using compressed air.
Compressed air contains lots of moister. You don't want this. It can also contain oil or other contaminants.
Re: Low-Cost Arduino-Based Ventilator
#44This probably should have gone on the thread about flattening the curve not being enough. But. Where is the core team of 12 people plus 108 collaborators that should have been assembled a month and a half ago to figure out how to retune US manufacturing to start producing stripped down ICU beds and the supplies needed to keep them operational? This game is easy. The parameters are well understood. You could assign th…
> WHERE IS THIS TEAM?
Now they're all sheltering in place in their homes.
It's amazing how big a difference you can make in the world if you can just get started... a month ago.
Re: Low-Cost Arduino-Based Ventilator
#45What we really need is a simple ventilator, designed by manufacturers who already know how to design and build these and produced at enormous scale using a shadow factory system similar to that developed in world war 2. In this model, the original manufacturer steps in to guide production, carry out quality control and probably supply the control electronics and software. All physical objects on which our civilisatio…
Devil's advocate: Why would a manufacturer consider damaging what is a potential mega cash cow? I read earlier that ventilators generally sell for $40-70,000USD to hospitals (who then go on to charge $20-40k for ventilator based treatment.) We're much better off right now with the government seizing the means of production and figuring out how to make as many as possible.
>We're much better off right now with the government seizing the means of production
You don't know how happy I am to see you say that.
Re: Low-Cost Arduino-Based Ventilator
#46This probably should have gone on the thread about flattening the curve not being enough. But. Where is the core team of 12 people plus 108 collaborators that should have been assembled a month and a half ago to figure out how to retune US manufacturing to start producing stripped down ICU beds and the supplies needed to keep them operational? This game is easy. The parameters are well understood. You could assign th…
> WHERE IS THIS TEAM? Now they're all sheltering in place in their homes. It's amazing how big a difference you can make in the world if you can just get started... a month ago.
Exactly. Still, with prioritization, this team can be assembled, isolated, and funded without limit, even now during shutdowns. But there's too many such leverage points to ... leverage. So, we use the same response Europe had to the Plague.
Re: Low-Cost Arduino-Based Ventilator
#47If you're interested we are working on various mechanical ventilator designs which don't require actuators or electronics. There are actually devices like that in the market, you can learn more in our collaboration docs: https://docs.google.com/document/d/1R25O2mKT3TfSjXTmheGEevIk... Edit: Another design we're considering based on an Army prototype: https://docs.google.com/document/d/1Hcuu-55q2a3_-LmBwg0uBdgM... If y…
As a member of that group, I honestly wonder what use our work will be due to regulations. Most hospitals cannot use uncertified equipment or software. I think however that there might be a large policy shift where these projects may become acceptable for use after some new or temporary legislation in 1-2 months. At that time, the projects may be extremely valuable
If things get bad enough they might use the state of emergency to relax that regulation.
Re: Low-Cost Arduino-Based Ventilator
#48This probably should have gone on the thread about flattening the curve not being enough. But. Where is the core team of 12 people plus 108 collaborators that should have been assembled a month and a half ago to figure out how to retune US manufacturing to start producing stripped down ICU beds and the supplies needed to keep them operational? This game is easy. The parameters are well understood. You could assign th…
calling Elon
Re: Low-Cost Arduino-Based Ventilator
#49Earlier quoted context omitted.
Devil's advocate: Why would a manufacturer consider damaging what is a potential mega cash cow? I read earlier that ventilators generally sell for $40-70,000USD to hospitals (who then go on to charge $20-40k for ventilator based treatment.) We're much better off right now with the government seizing the means of production and figuring out how to make as many as possible.
Because that manufacturer is not a monopoly, if they won’t produces, other will. Also, government is much less effective at producing things than private companies.
Is there actual evidence for this? That governments aren't as effective at producing things. This gets bandied about a lot but I'm not sure it's true. I think governments can be highly effective at producing things.
Re: Low-Cost Arduino-Based Ventilator
#50This probably should have gone on the thread about flattening the curve not being enough. But. Where is the core team of 12 people plus 108 collaborators that should have been assembled a month and a half ago to figure out how to retune US manufacturing to start producing stripped down ICU beds and the supplies needed to keep them operational? This game is easy. The parameters are well understood. You could assign th…
calling Elon
Elon has been consistently playing down the risk from coronavirus/
https://www.theverge.com/2020/3/13/21179291/elon-musk-corona...