News / Health

Researchers Develop Life-Saving App for Smartphones and Tablets

Phone Oximeter (Lion's Gate Technologies)
Phone Oximeter (Lion's Gate Technologies)
Jessica Berman
A new application, or app, has been developed for smartphones and portable computer tablets that may soon save lives in developing countries.  Besides being highly portable, the technology is cheap and easy to use.  

Of the six billion mobile phone users in the world, experts say about two-thirds live in developing countries where millions of children die each year due to lack of oxygen from pneumonia.  The lung infection is highly treatable with antibiotics, but often caregivers are not aware of the critical nature of the child's condition.

So, Dr. Mark Ansermino of the University of British Columbia and his colleagues developed a small, inexpensive device that can be attached to the earphone jack of a smartphone or mobile tablet that measures pulse oximetry.  Assessing the level of oxygen in the blood is sometimes called the fifth vital sign - along with pulse, temperature, breathing rate and blood pressure measurements.

The app, called the Phone Oximeter, gets its data from a clip attached to a fingertip or earlobe.

Ansermino, a pediatric anesthesiologist, explains the device shines light of different wavelengths through the skin, taking advantage of a unique characteristic of blood.

“When you have got oxygen on your blood, it goes red and when you have not got oxygen in your blood, it goes blue.  And that is why we get this tinge around our lips when it is cold because we do not have enough oxygen in the blood around your lips.  But also when children get sick ... we see the same blue color.  So, what we do really is look at this light shining through the tissue and determine the bounds of this red to blue light, and from that we can tell how much of your blood has oxygen on it and how much does not," said Ansermino.

Ansermino says the inexpensive Phone Oximeter, expected to cost between $10 to $40, produces pulse oximetry readings as accurate as those of machines used in Western hospitals, costing thousands more.
The app, according to Ansermino, was designed for use at the community level, by minimally trained health workers.

“They can actually go and look at these children who perhaps have difficulty breathing or have [a] severe cold and would actually be able to put this device on the child, ask them basic questions and be able to give some judgment or diagnostic advice on what to actually do with that child.  And they may even be in the position to administer some antibiotics," he said.

The device could also improve the ability to identify pregnant women at risk of developing the life-threatening condition preeclampsia.

Writing in the journal Anesthesia and Analgesia, Ansermino says smartphones and tablets have an emerging role as mobile devices that could be used exclusively for medical care.

You May Like

Isolation, Despair Weigh on Refugees in Remote German Camp

Refugees resettled near village of Holzdorf deep in German forestland say there is limited interaction with public, mutual feelings of distrust

Britons Divided Over Bombing IS

Surveys show Europeans generally support more military action against Islamic State militants, but sizable opposition exists in Britain

Russia Blacklists Soros Foundations as 'Undesirable'

Russian officials add Soros groups to a list of foreign and international organizations banned from giving grants to Russian partners

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
With HIV, Can We Get to Zero?i
Carol Pearson
November 29, 2015 1:23 PM
The theme of this year's World AIDS Day is "Getting to Zero." The U.N. says new HIV infections have been reduced by 35 percent since 2000 and AIDS-related deaths are down by 42 percent since the peak in 2004. VOA's Carol Pearson takes a look at what it might take to actually have an AIDS-free generation.

Video With HIV, Can We Get to Zero?

The theme of this year's World AIDS Day is "Getting to Zero." The U.N. says new HIV infections have been reduced by 35 percent since 2000 and AIDS-related deaths are down by 42 percent since the peak in 2004. VOA's Carol Pearson takes a look at what it might take to actually have an AIDS-free generation.

Video Political Motives Seen Behind Cancelled Cambodian Water Festival

For the fourth time in the five years since more than 350 people were killed in a stampede at Cambodia’s annual water festival, authorities canceled the event this year. Officials blamed environmental reasons as the cause, but many see it as fallout from rising political tensions with a fresh wave of ruling party intimidation against the opposition. David Boyle and Kimlong Meng report from Phnom Penh.

Video African Circus Gives At-Risk Youth a 2nd Chance

Ethiopia hosted the first African Circus Arts Festival this past weekend with performers from seven different African countries. Most of the performers are youngsters coming form challenging backgrounds who say the circus gave them a second chance.

Video US Lawmakers Brace for End-of-Year Battles

U.S. lawmakers are returning to Washington for Congress’ final working weeks of the year. And, as VOA's Michael Bowman reports, a full slate of legislative business awaits them, from keeping the federal government open to resolving a battle with the White House over the admittance of Syrian refugees.

Video Taiwan Looks for Role in South China Sea Dispute

The Taiwanese government is one of several that claims territory in the hotly contested South China Sea, but Taipei has long been sidelined in the dispute, overshadowed by China. Now, as the Philippines challenges Beijing’s claims in an international court at The Hague, Taipei is looking to publicly assert its claims. VOA’s Bill Ide has more from Beijing.

Video After Terrorist Attacks, Support for Refugees Fades

The terrorists who killed and injured almost 500 people around Paris this month are mostly French or Belgian nationals. But at least two apparently took advantage of Europe’s migrant crisis to sneak into the region. The discovery has hardened views about legitimate refugees, including those fleeing the same extremist violence that hit the French capital. Lisa Bryant has this report for VOA from the Paris suburb of Cergy-Pontoise

Video Syrian Refugees in US Express Concern for Those Left Behind

Syrian immigrants in the United States are concerned about the negative tide of public opinion and the politicians who want to block a U.S. plan to accept 10,000 Syrian refugees. Zlatica Hoke reports many Americans are fighting to dispel suspicions linking refugees to terrorists.

Video Thais Send Security Concerns Down the River

As Thailand takes in the annual Loy Krathong festival, many ponder the country’s future and security. Steve Sandford reports from Chiang Mai.

Video Islamic State Unfazed by Losses in Iraq, Syria

Progress in the U.S.-led effort to beat Islamic State on its home turf in Iraq and Syria has led some to speculate the terror group may be growing desperate. But counterterror officials say that is not the case, and warn the recent spate of terror attacks is merely part of the group’s evolution. VOA National Security correspondent Jeff Seldin has more.

Video Belgium-Germany Border Remains Porous, Even As Manhunt For Paris Attacker Continues

One of the suspected gunmen in the Nov. 13 Paris attacks, Salah Abdeslam, evaded law enforcement, made his way to Belgium, and is now believed to have fled to Germany. VOA correspondent Ayesha Tanzeem makes the journey across the border from Belgium into Germany to see how porous the borders really are.

Video US, Cambodian Navies Pair Up in Gulf of Thailand

The U.S. Navy has deployed one of its newest and most advanced ships to Cambodia to conduct joint training drills in the Gulf of Thailand. Riding hull-to-hull with Cambodian ships, the seamen of the USS Fort Worth are executing joint-training drills that will help build relations in Southeast Asia. David Boyle reports for VOA from Preah Sihanouk province.

Video Uncertain Future for Syrian Refugee Resettlement in Illinois

For the trickle of Syrian refugees finding new homes in the Midwest city of Chicago, the call to end resettlement in many U.S. states is adding another dimension to their long journey fleeing war. Organizations working to help them integrate say the backlash since the Paris attacks is both harming and helping their efforts to provide refugees sanctuary. VOA's Kane Farabaugh reports.

VOA Blogs