Open-source “pandemic ventilator”

Re:Open-source “pandemic ventilator” by Confiks on Saturday February 29, 2020 @05:02PM (#22453462)

Here [1] is another interesting low-cost version of ventilator. It's an immersion two-phase continuous positive airway pressure (CPAP) device, of which all the parts are printable. The patient still needs to be able to initiate breaths themselves, but it will cost a lot less energy to breath.

Combine it with a (admittedly lot harder to make) homemade pressure swing adsorbtion system that delivers high-oxygen air, using zeolite sieves and alternating pressure [2].

[1] https://www.youtube.com/watch?v=CHiRTMQCf1Y

[2] https://www.youtube.com/watch?v=ylj4oOnlIY0

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Re:Open-source “pandemic ventilator” by Gravityloss on Sunday March 01, 2020 @06:37AM (#22456437)

Not a medical professional but the CPAP route sounds more promising to me. Simpler, less risk.

What about just oxygen bottles or oxygen enrichment? They have their own dangers though.

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Re:Open-source “pandemic ventilator” by kortex on Sunday March 01, 2020 @07:12AM (#22456543)

I would imagine in a situation where you need ersatz CPAP, bottled oxygen is harder to come by and/or less affordable.

PSA oxygen generators are simple to construct and provide continuous oxygen as long as you power them.

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