Melbourne: A team of University of Melbourne physicists and doctors are developing life-saving oxygen supply machines that continue working even during power cuts, to treat young children with pneumonia in developing countries. The team has received $100,000 from the Bill and Melinda Gates Foundation via its Grand Challenges Explorations Grants program to prototype new technology, with a chance to receive a further $1 million once it is proven. The machine, known as LPOS, stores oxygen at low-pressure to ensure steady supply when the electricity fails. It has potential to reduce child pneumonia mortality rates in developing country health facilities by 30 per cent. The team will test it in medical clinics in Uganda in August.
Pneumonia is the number one killer of children under five-years-old
worldwide, causing 1.5 million child deaths a year. One child every 30
seconds. Even if a child suffering from severe pneumonia is on
antibiotics, without a steady flow of purified oxygen, their lungs
struggle to cope and the condition often becomes fatal.
University of Melbourne Faculty of Science physicist Associate
Professor Roger Rassool, who is leading the project, said the biggest
problem with treating young pneumonia patients in developing countries
is electricity shortages.
“In these basic health clinics, doctors commonly use an oxygen
concentrator machine, which uses electricity to produce oxygen,” A/Prof
“The air we breathe is 78 per cent nitrogen and 21 per cent oxygen.
This machine removes the nitrogen from the air and increases the
concentration of oxygen to 90 per cent.”
The problem is, he says, when the electricity fails, as it often does
in Sub-Saharan Africa, East Timor and Papua New Guinea, the flow of
“We have developed a method of storing oxygen safely at a low
pressure, which has the ability to maintain a flow of oxygen to a
patient during a power outage,” he said.
“We thought, why don’t we capture the spare oxygen that’s being made
when the power is on and keep it in a low pressure storage system to tap
in to when the power goes off? Now we have funding to build it and test
how to store enough oxygen to get through a day without electricity.”
The store would be enough to keep a child alive in excess of eight hours, even during a complete blackout, he added.
“We have a simple, yet profound key performance indicator and that is how many lives we save.”
Associate Professor Jim Black from the Nossal Institute, who is also
working on the project, worked in remote health clinics in Mozambique
for a decade. He knows first-hand the devastation pneumonia has in these
“If you diagnose that a child with severe pneumonia, and you don’t
have oxygen to treat it, that child will commonly die,” he said.
“It’s dreadful. It’s one of the hardest things to deal with when you
work in an African health service, particularly when you know just how
easy it would be to solve these problems if you had the right
Shipping in bottled oxygen, he says, is not practical due to the
logistics and cost of distributing it to clinics. Instead, doctors use
machines that use electricity to filter the nitrogen from the air, which
are effective provided the power doesn’t fail. That’s why finding a way
to store oxygen when the power fails is crucial.
“With a combination of antibiotics and highly concentrated oxygen,
the immune system kicks in, and within only 24 to 48 hours, the child
can clear out their lungs and wean off the oxygen.”
“With this technology, we can make big inroads against the mortality
rate. That’s why we’re so dedicated to making this work. We can start
talking in terms of tens of thousands of deaths that can be prevented.”
This August, the team will travel to Uganda to test the technology in
medical clinics in East Africa while recording data, understanding the
local issues with power supply and establishing relationships on the
The ultimate aim is to establish a startup in Melbourne with
strategic partnerships between the University, industry and community,
to form the manufacturing capability here in Australia.
For more information on the Bill & Melinda Gates Foundation Round 14 Grand Challenges Explorations Phase I grants see: http://grandchallenges.org/