DIGITAL HEALTH
“ Fortunately , we have good links with medical specialists in hospitals but are still building our university links .
“ But what the pandemic has shown – and this has been seen across healthcare – is that we need smarter ways of working in order to deliver more efficient , effective care to patients . The pandemic highlighted the lack of development in how we treat respiratory failure and shone a light on the need for the sort of innovation which we want to bring to healthcare systems around the world .”
The oxygen supply chain For those who are unfamiliar with the manufacture of oxygen , Prof Wladyslaw offers a summary of how it is made .
“ The manufacture of oxygen is not part of our business , but we can say that it is prepared by separating oxygen from nitrogen . Oxygen makes up 21 % of air and nitrogen 78 %. To obtain high purity oxygen you need to either obtain it from the fractional distillation of liquefied air , which is pumped into a chamber at -200 ° c , or condense it from air using liquid nitrogen as a coolant . Here is the process :
1 . Carbon Dioxide freezes at -79 ° C and is removed . Oxygen liquifies at -183 ° C / 297 ° F and nitrogen at -196 ° C / 320 ° F 2 . The liquid oxygen is filtered out 3 . Liquid oxygen , pale blue and extremely cold , with a temperature of around -183 ° C / 297 ° F , is a cryogenic gas that can only be stored and transported in special cylinders and tankers . This is energy intensive . The tankers do not usually travel at night to avoid accidents and do not travel very fast
4 . Hospitals use liquid oxygen storage and oxygen stored in iron cylinders , ready for patients .
60 March 2022