'Children's blood vessels are very fragile and they can be damaged by failure in inserting the injection needle,' said Ade Pajar Pirdianto, a student of the UMY's school of electrical engineering, who invented the device along with his two student colleagues, Aan Kurniawan and Muholidin.

'By putting a hand on the detection tool, we can clearly see the baby's blood vessels,' he said.

Muholidin said the tool uses 4-pin light-emitting diodes (LED) that could produce stronger light rays compared to other types of LEDs. Devices with such technology had been used in a number of major hospitals.

With the new device, even community health centers and other health care facilities in remote facilities could use the similar technology, he said.

'The device is simple and easy to carry,' Muholidin said. (asw/ebf)

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