Could a low-cost screening device connected to a cell phone save thousands of women and children from anemia-related deaths and disabilities?
That's the goal of Johns Hopkins biomedical engineering undergraduates who've developed a noninvasive way to identify women with this dangerous blood disorder in developing nations. The device, HemoGlobe, is designed to convert the existing cell phones of health workers into a "prick-free" system for detecting and reporting anemia at the community level.
The device's sensor, placed on a patient's fingertip, shines different wavelengths of light through the skin to measure the hemoglobin level in the blood. On a phone's screen, a community health worker quickly sees a color-coded test result, indicating cases of anemia, from mild to moderate and severe.
If anemia is detected, a patient would be encouraged to follow a course of treatment, ranging from taking iron supplements to visiting a clinic or hospital for potentially lifesaving measures. After each test, the phone would send an automated text message with a summary of the results to a central server, which would produce a real-time map showing where anemia is prevalent. This information could facilitate follow-up care and help health officials to allocate resources where the need is most urgent.
Soumyadipta Acharya, an assistant research professor in Johns Hopkins' Department of Biomedical Engineering and the project's faculty advisor and principal investigator, said the device could be important in reducing anemia-related deaths in developing countries. International health experts estimate that anemia contributes to 100,000 maternal deaths and 600,000 newborn deaths annually.
"This device has the potential to be a game-changer," Acharya said. "It will equip millions of health care workers across the globe to quickly and safely detect and report this debilitating condition in pregnant women and newborns."
|Contact: Phil Sneiderman |
Johns Hopkins University