3 of 3 people found this helpful
The UK Government has published a spec for emergency COVID 19 ventilators - I posted a link to it the other day but here it is again.
Well worth a read.
It looks to me as if not only is oxygen mixing essential but that also care in reducing oxygen consumption and peak demand (because UK hospitals don't have unlimited supply in non ICU locations). These are not issues you might think of unless you were an expert in the field or accessed a detail specification.
Other essential features are ability to be operated by someone in full protection gear, adjustable flow and pressure regulation, triggering by timer or patient breath effort, controlled (and different) rates of flow for inhalation and exhalation (and a lot more).
For the most up-to-date information see the Github page of Public Invention
The list has up to date evaluation of over 30 ongoing projects, some beginning production soon.
Can You Make a Ventilator?
Can you Design A Better Low Cost Ventilator?
‘Going full-on MacGyver’ – U of M doctor creates makeshift ventilators to battle COVID-19
Rapidly deployable, open-source, low-cost ventilator for COVID-19 patients - 1st prototype idea
Ventilator shortage could be solved
Rice engineering majors breathe new life into ventilators in low-resource settings
1st prototype running! Easily manufactured, low-cost ventilator prototype for COVID-19 patients
Mechanical Ventilator (A.K.A Pandemic Ventilator), assembled from off the shelf parts.
3D Printing Respirator Valves for Coronavirus AND How YOU Can Help!
Crowd-Sourced Respiratory Ventilator Project
Macgyvilator Mk 1 (3-19-2020) - "ventilator" for disasters and/or low resource environments
This 'Tiny Ventilator' can be used at home with your smartphone!
Your Phone Can Function As a Low-Cost Ventilator | Quint Fit
Firm makes ventilator for coronavirus patients | AFP
Colorado Glass Blower Creates Ventilator Splitters for Hospitals
DIY Respirator from Iuri’s Workshop