Pain-free blood tests

Tasso Inc. is perfecting a device the size of a pingpong ball that extracts a small sample while held against the skin for two minutes. During this time, a slight vacuum in the device enables a small sample of blood to flow into an attached sample tube, which can be mailed or handed to a lab. Users report that the process is almost entirely painless.

Read more:
Simple sample: Federal grant advances pain-free blood tests

Source: University of Wisconsin-Madison