Google files patent for needle free smartwatch for blood collection

google blood collecting smartwatch
source:-rt. com
The device sends an "abrupt surge" of gas into a barrel that has a “micro-particle” that punctures the skin and takes a tiny amount of blood. When the droplet is formed, it is sucked into a negative pressure barrel.

There can be a little pain while drawing the blood sample.

It remains unclear when and whether the device will hit the market, but it’s not Google’s first attempt to reach out to diabetics.
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