Very interesting, thanks. If that is the case then it may indeed simply be a software thing. Specifically for treating ARDS you need: -High PEEP (obviously any

Very interesting, thanks. If that is the case then it may indeed simply be a software thing. Specifically for treating ARDS you need: -High PEEP (obviously any CPAP machine can do this) -Low plateau pressure (probably possible, that's just software) -Low tidal volume and high breathing rate. Breathing rate is just a cycling variable so should be software only issue. Managing low tidal volume will require the machines to have a flow sensor. Do you know if any of your machines do? If so, then this is likely fixable with only software. My interpretation of that article is it must refer to the patient valve as those are one-time use (as they in contact with contaminated patient exhalations) rather than O2 inlet valves which are not disposable. Patients are breathing high-ish O2 but obviously not HP pure O2 so 3d printed is fine for that. 3D printing is useful for cases like that where due to logistics there is a temporary shortfall in local supply. I suspect that 3 months from now we are unlikely to be using those measures as global production and distribution of ventilator consumables ramp up.