A new robot, just one millimeter in diameter, can crawl through your veins to treat arterial blockage or deliver targeted medication.

Developed by researchers from Israel’s Technion University, what makes the robot feasible is that it isn’t self-propelled, saving size and engineering complication. Instead, the bot takes advantage of a magnetic field from outside the body, meaning that doctors can not only guide but also propel the the vein crawler forward at 9mm/second. And the robot shouldn’t run out of power mid-procedure, stalling it in your body as it drifts for your brain.

When the robot needs to park, those little arms can spring out *shiver* and grab onto vessel walls *shiver*shiver*shiver*shiver*shiver*shiver*shiver*.

Now researchers are looking at beefing up the bot, adding extra tools and even a camera to the mix. And as scary as a robot-filmed reality show starring my aorta may be, it sounds a lot better than having several layers of flesh peeled away via scalpel. [The Inquirer via Newlaunches]