3D printing has allowed a team at the University of Adelaide to print the smallest scope ever made for imaging blood vessels. Here’s more from SlashGear:
Tiny endoscopes, such as the one the team has created, allow doctors to look inside the vessels to see how the plaque forms and explore new ways to treat it. The team was able to print complicated lenses that are too small to see with the naked eye using the 3D micro-printing technique. The entire endoscope, including its protective casing, is less than half a millimeter across.