National Taiwan University develops hand-cranked blood-type device
Portable, power-free gadget identifies blood type and red cell levels from a drop of blood in one minute.
What to know
- A hand-cranked device the size of a TV remote can identify blood type and red blood cell levels from one drop of blood in approximately one minute, requiring no electricity or training.
- Early validation on 21 clinical samples showed the device's accuracy matched standard hospital equipment, with negligible bias.
- The device currently works with eight main blood types and standard hematocrit ranges; larger multi-center studies and field testing in disaster zones are needed before deployment to first responders.
Chien-Fu Chen Biomedical engineer, National Taiwan UniversityNational Taiwan University Research institution
How it unfolded 3 developments, newest first · click a bar or a number to jump articlesposts
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Device remains limited before field deployment
Researchers acknowledge the device covers only eight main blood types and standard hematocrit ranges; larger multi-center clinical studies and real-world field testing in disaster zones are needed before widespread deployment, with future work planned to extend capabilities.
“Future work will therefore focus on extending the assay to additional blood group systems, broadening the validated HCT range, and conducting larger-scale, multi-center clinical studies to further establish reliability…”
— Researchers -
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Validation study shows device accuracy matches hospital equipment
Testing on 21 clinical samples demonstrated the device's readings aligned closely with automated hospital analyzers, with a mean bias of 0.126 percent and 95 percent limits of agreement between -0.63 and 0.88 percent. Cranking speed does not affect accuracy.
“Validation using 21 clinical samples demonstrated strong agreement with automated analyzers, with a mean bias of 0.126 percent and 95 percent limits of agreement of -0.63 percent to 0.88 percent…”
— Researchers -
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National Taiwan University publishes hand-cranked blood analysis device
Researchers led by biomedical engineer Chien-Fu Chen published details in Biosensors and Bioelectronics of a portable, hand-cranked device that determines blood type and red blood cell levels from a single drop of blood in under a minute, without requiring electricity or specialized training.
“Our goal is to bring two essential blood tests out of the laboratory and into the hands of first responders, with no electricity or specialized training needed…”
— Chien-Fu Chen -
first by ScienceAlert, 5d ago
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