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Brian P said:
As someone involved in manufacturing ... I'd like to know what part of GM's existing production equipment they propose to leverage in order to manufacture a completely unrelated product. They need these ventilators NOW or maybe a week or two from now. There is no way you are going to change over production equipment in order to make a completely different product that is put together in a completely different way, so it can only be something rigged up from re-purposed bits and pieces that are already in production.

Conceptual design: A centrifugal blower of appropriate pressure rating, a couple of flapper valves to switch the outlet hose from the discharge to the inlet of the blower in an alternating pattern, a little actuator of some sort to change over the flapper valves (would have to be electric - an air cylinder would require a compressed air supply), and an electrical panel with a small power supply and PLC and contactor sets to make it all work. A potential obstacle is that I don't know how you would synchronise this with the patient's natural attempts to breathe (or if you have to do that) - if the problem is that the patient can only halfheartedly breathe, you want to work "with" and never work "against" the patient's natural attempts to breathe, and I don't know how you would do that.

Something rigged up in a hurry like this will NOT have any meaningful countermeasures against component failures. It will NOT pass FMEA. It will NOT have redundant components in the event of a failure. I am sure that there are standards which apply to medical equipment ... which I am not familiar with, but almost certainly a rigged up contraption would not be in compliance. And it means that any company proposing to build something like this, would have to be protected from liability. In the USA? Good luck with that. In Europe? No CE marking for you - no declaration of conformity - can't import it. I'm sure that under the circumstances, some way of waiving some of these requirements could be arranged ... but the manufacturer has to be protected from liability after all this is over.
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maybe it’s assembly of parts?
 
jc100 said:
maybe it’s assembly of parts?
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same problem.

either its a machine process or it just requires hands on labour.

if its the former then you can't really just jerry rig this stuff and go.

if its the latter, operators really just follow the control plan on how to do what they do. Nothing you couldn't teach Joe Plumber.
 
jc100 said:
maybe it’s assembly of parts?
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What parts? Supply chain is apparently maxed out supplying people that know how to put them together. It's just trumpy being trumpy. There are infinitely better choices of industries to commandeer. Auto manufacturers are setup to put assemble subsystems on a multiple year run with lots of lead time. You need a company that is designed to bang out prototypes quickly and try to scale them.
 
Brian P said:
As someone involved in manufacturing ... I'd like to know what part of GM's existing production equipment they propose to leverage in order to manufacture a completely unrelated product. They need these ventilators NOW or maybe a week or two from now. Tof conformity - can't import it. I'm sure that under the circumstances, some way of waiving some of these requirements could be arranged ... but the manufacturer has to be protected from liability after all this is over.
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No disrespect , B but your looking at it like an engineer. We may not be far from the war measures act. If we need 30,000 ventilators and some body can crank up that in two weeks thats how it will get done. Once we go to war measures act, state of emergency , what ever they call it, all the lawyers can pound sand after the fact. Bauer sporting goods is making face shields as of today, designed and into production in 48hrs. Who cares it didnt get "testing" ?? nobody that needs a faceshield.
Its a different world today and things will be allowed.
You can sit in the wings and say Grandma doesnt get a non CE, UL cert ventilator, or hook her up to the one that they have....
 
regder said:
Just scanned a few webcams from Miami, thankfully it looks absolutely dead. Not sure how the rest of Florida is going about things.
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I was in Florida last week ,it was business as usual there up until last Wednesda.The restaurants started spacing their tables 6 feet apart. Every restaurant we went into had guys running around with tape measures.The grocery stores were packed with people but the shelves were all well stocked, nothing like here. The only things you couldn’t buy were toilet paper and ammo.Im dead serious about that.They are going to get hit hard there.
 
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GreyGhost said:
What parts? Supply chain is apparently maxed out supplying people that know how to put them together. It's just trumpy being trumpy. There are infinitely better choices of industries to commandeer. Auto manufacturers are setup to put assemble subsystems on a multiple year run with lots of lead time. You need a company that is designed to bang out prototypes quickly and try to scale them.
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If you were leaning on automotive, a company like say, Rivan could probably design and manufacture something quicker. There's always Elon, but I'd imagine having all the seams line up would be important in a respirator.
 
FullMotoJacket said:
If you were leaning on automotive, a company like say, Rivan could probably design and manufacture something quicker. There's always Elon, but I'd imagine having all the seams line up would be important in a respirator.
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Elon has already committed to building ventilators. Not sure where he's at in production though.

Sir Dyson (forget his full name), of vacuum cleaner fame, has designed a brand new ventilator that I think he is hoping for production by early April
 
Brian P said:
Bauer already manufactured similar parts. Hockey masks.
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The sketches I saw from Ford were a powered backpack unit, full head enclosure. A little out of Bauer's wheelhouse I'd say.

Ford's Quickly-Designed Powered Air-Purifying Respirators Are A Clever Re-Use Of F-150 And Hand Tool Parts

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mimico_polak said:
Thanks all for the well wishes. Really appreciate it.
Feeling much better after a few IV doses of the antibiotics.
Doctor said my heart rate dropped from 150 down to 90.
Temp down from 39 to 36.8C
Blood pressure is at normal levels. And they just took me off oxygen to see how breathing is naturally.
They told me 1 more night minimum at the hospital so doing a lot of downloaded content watching (Jack Ryan on Prime is great).

we have food at the hospital, definitely won’t be gaining weight because of it.
Mask comes on when nurses or anyone walks in but they said I don’t have to wear it when I’m alone in the room.

thanks all.
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Glad to hear you’re getting better, hang in there.


Sent from my iPhone using GTAMotorcycle.com mobile app
 
mimico_polak said:
Thanks all for the well wishes. Really appreciate it.
Feeling much better after a few IV doses of the antibiotics.
Doctor said my heart rate dropped from 150 down to 90.
Temp down from 39 to 36.8C
Blood pressure is at normal levels. And they just took me off oxygen to see how breathing is naturally.
They told me 1 more night minimum at the hospital so doing a lot of downloaded content watching (Jack Ryan on Prime is great).

we have food at the hospital, definitely won’t be gaining weight because of it.
Mask comes on when nurses or anyone walks in but they said I don’t have to wear it when I’m alone in the room.

thanks all.
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get better soon! Out of interest did they tell you what the antibiotics are for?
 
Brian P said:
... A potential obstacle is that I don't know how you would synchronise this with the patient's natural attempts to breathe...
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A sensitive 3 position sail switch would do that.

rc.rcjournal.com

The Mechanical Ventilator: Past, Present, and Future

The use of ventilatory assistance can be traced back to biblical times. However, mechanical ventilators, in the form of negative-pressure ventilation, first appeared in the early 1800s. Positive-pressure devices started to become available around 1900 and today's typical intensive care unit...
rc.rcjournal.com rc.rcjournal.com
 
That explains it. All it's doing is supplying filtered air. It's not trying to help someone breathe. That's the tricky bit.
 
GM could build an iron lung like nobody's business.
.... it will probably have a sporty vinyl roof too or maybe a T top
 
jc100 said:
get better soon! Out of interest did they tell you what the antibiotics are for?
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I have a small amount of fluid/something in my lungs which is why I’m on antibiotics.

doctor just came into the room without walking to me and he just quickly mentioned it’s looking more like pneumonia considering how quickly I’m reacting to the antibiotics.
Here’s hoping to him being right!
 
bad day for USA
the curve is going vertical

to put this in perspective
the worst day they had in the Iraq war they lost 37
this is a disaster

yxYzdnS.jpg
 
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