Electronics > Projects, Designs, and Technical Stuff
Ventilator made from car parts
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jeffheath:
This forum is in just as much of a panic as anyone else. There just needs to be some kind of standardized test that can evaluate these ventilators, to see how they perform. It doesn't have to be approved testing, and I wouldn't think it would need to take months either. The companies that make ventilators must have some form of testing their ventilators, so maybe they can streamline their testing process (as well as share their equipment and procedures) so we can have real data on how each new ventilator performs.
madires:
It can't be stressed enough, the real challenge is the firmware, i.e. how to control the ventilator to support the patient breathing. When it's not done right the ventilator will damage the patient's lung. And the doctor must be able to monitor breathing and to adjust parameters if necessary. That takes a lot of effort and time for research, testing and optimization, unless you've already designed ventilators and can take shortcuts for a new design. No manufacturer of approved ventilators will give away their IP to anyone hacking together ventilators. The only reasonable way to ramp up production numbers is licensing the production to other companies to manufacture exact copies of the original design. All the hype about taking parts from a car's AC or 3D-printing is simply PR nonsense.
SiliconWizard:

--- Quote from: madires on April 10, 2020, 03:36:24 pm ---The only reasonable way to ramp up production numbers is licensing the production to other companies to manufacture exact copies of the original design. All the hype about taking parts from a car's AC or 3D-printing is simply PR nonsense.

--- End quote ---

Yes, yes and yes.
jeffheath:

--- Quote from: madires on April 10, 2020, 03:36:24 pm ---It can't be stressed enough, the real challenge is the firmware, i.e. how to control the ventilator to support the patient breathing. When it's not done right the ventilator will damage the patient's lung. And the doctor must be able to monitor breathing and to adjust parameters if necessary. That takes a lot of effort and time for research, testing and optimization, unless you've already designed ventilators and can take shortcuts for a new design. No manufacturer of approved ventilators will give away their IP to anyone hacking together ventilators. The only reasonable way to ramp up production numbers is licensing the production to other companies to manufacture exact copies of the original design. All the hype about taking parts from a car's AC or 3D-printing is simply PR nonsense.

--- End quote ---
So basically any unapproved ventilator probably won't be optimized enough to operate at the precise level of control needed to perform well, and making a machine with the proper sensors/equipment to quickly "test" a ventilator would be harder to do than simply licensing the ventilator design?
madires:
I think so. The ventilator has to adjust itself to the patient's breathing. Simply forcing air down the throat will harm the patient. A quick ventilator test won't work because you would have to check several profiles (taken from patients) which also change during the day based on activity (awake, sleeping, pain, stress, ...). But a test machine could be used for QC in the production.
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