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DIY Pandemic Ventilator

Old 03-22-20, 02:23 PM
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wgscott
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DIY Pandemic Ventilator

I just saw this, and thought I would post it since there are many here with advanced DIY/mechanical skills:

https://www.instructables.com/id/The...ic-Ventilator/

I looked for such instructions after reading this in the NYT:

https://www.nytimes.com/2020/03/22/o...-solution.html
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Old 03-22-20, 03:02 PM
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But always careful to remember that the risks of using a ventilator can be as bad as the disease-- overpressure does all sorts of bad things, a dirty filter can result in pneumonia, and use more than a few days can result in atrophy of the diaphragm.

I think it's inevitable that we will be reading about someone who tried to intubate/ventilate themselves or a loved one, and it went as badly as we would expect.
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Old 03-22-20, 07:05 PM
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These guys (in Italy) are 3D printing ventilator valves:

https://www.nytimes.com/2020/03/22/o...rus-italy.html

The response to this shouldn't have to be amateur hour.
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Old 03-26-20, 05:03 PM
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B/c of nytimes paywall, I don't know if that's the same, but here's a 3D printed mask

https://copper3d.com/hackthepandemic/

Note the popup, apparently some people were considering this to be a completely viable product and/or something that could be sold for a lot. But they stress it's just a prototype and needs to be printed with antimicrobial materials. Probably also needs a filter insert. But an interesting concept nonetheless
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Old 03-26-20, 05:15 PM
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I read in the Independent that Dyson (the vacuum guy, not Freeman, who just died) is making them for the UK.

Meanwhile in NYC they have instituted a two patient share of ventilators.

Last edited by wgscott; 03-26-20 at 05:48 PM. Reason: added link
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Old 03-26-20, 05:46 PM
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If they are like their vacuum cleaners, they will probably cost 10X more and last a year or so.
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Old 03-26-20, 06:07 PM
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Originally Posted by wgscott View Post
If they are like their vacuum cleaners, they will probably cost 10X more and last a year or so.
Well, hopefully they don't suck.
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Old 03-26-20, 09:12 PM
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I had not realized the valve-printer folks were 3T Cycle

https://www.bicycleretailer.com/indu...r-bike-factory
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Old 03-26-20, 11:55 PM
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Originally Posted by noisebeam View Post
Well, hopefully they don't suck.
booooo get off the stage
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Old 03-28-20, 12:48 AM
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Last edited by Rollfast; 03-28-20 at 12:53 AM.
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Old 04-01-20, 02:50 PM
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Originally Posted by DrIsotope View Post
But always careful to remember that the risks of using a ventilator can be as bad as the disease-- overpressure does all sorts of bad things, a dirty filter can result in pneumonia, and use more than a few days can result in atrophy of the diaphragm.

I think it's inevitable that we will be reading about someone who tried to intubate/ventilate themselves or a loved one, and it went as badly as we would expect.
Excellent point. But, will we arrive at a point where they'll start unplugging Americans deemed of little import to make way for those deemed more important?

Some states hare reopened open-enrollment of the ACA. But, the Federal Government has chosen not to do so. And, Oregon had attempted to make their own medical exchange, spent a bunch of money, and utterly failed, thus we're stuck with the federal exchange.

I can imagine expenses will climb rapidly, and we may see federal bailouts of insurance companies, all the while throwing the little people under the bus. Yet, this may well be exactly what the ACA is supposed to protect us from. Say a 1 in 1000 chance of major medical expenses. Moderate risk for the individuals, but those that get it bad will see expenses go through the roof.
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Old 04-04-20, 05:16 PM
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I've long followed the Youtube channel of an Irish engineer.
He released a new video today, and now I've learned he once worked for Medtronic.
The topic is ventilator design, and it is a hell of a lot more complex than you would imagine.

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Old 04-04-20, 09:06 PM
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Originally Posted by Shimagnolo View Post
I've long followed the Youtube channel of an Irish engineer.
He released a new video today, and now I've learned he once worked for Medtronic.
The topic is ventilator design, and it is a hell of a lot more complex than you would imagine.

https://www.youtube.com/watch?v=7vLPefHYWpY
Thanks,

A very interesting clip. I don't think any of these are insurmountable problems, but far more complex than the rythmic bag squeezing.

A hospital room may well have supplied oxygen, but portable/field/home use might also want to either include an oxygen concentrator, or have an interface for oxygen, and regulating the oxygen/nitrogen percent.
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Old 04-08-20, 07:24 AM
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There are a ton of ventilators in the US. The problem is distribution.
In my hospital, we have more than we need by far. Our curve has stayed pretty flat so we are fortunate for a large California area.
I don't see the US needing to make ventilators out a wood and plumbing supplies, though it is unfortunate that the US would even be in a situation that its considered.
My fear was never the lack of vents but the lack of Respiratory therapist managing them.
People that are on vents, that are this sick, need close observation and management of settings to survive.

Stay Safe out there,
Mike RRT, RCP
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Old 04-09-20, 09:46 AM
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Originally Posted by norcalmike View Post
There are a ton of ventilators in the US. The problem is distribution.
In my hospital, we have more than we need by far. Our curve has stayed pretty flat so we are fortunate for a large California area.
I don't see the US needing to make ventilators out a wood and plumbing supplies, though it is unfortunate that the US would even be in a situation that its considered.
My fear was never the lack of vents but the lack of Respiratory therapist managing them.
People that are on vents, that are this sick, need close observation and management of settings to survive.

Stay Safe out there,
Mike RRT, RCP
Firstly, thank you Mike for your service and chosen profession.

Per the subject matter, if in fact what you state is correct, shame on this country. We can now add poor or no means of effective distribution - hence deaths.

Most every big shot business leader and absolutely every politician are finger pointers, blame others or focused on cheating systems. That includes the FDA. I'm amazed no one has called out that corrupt agency.

Stay safe all, I'm going for a bike ride~~~~
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