Could mini-robots be used to fix your insides–Innerspace becoming reality!
Although this sounds like something out of Star Trek, or a bad horror movie, scientists in Israel have developed a robot small enough to travel through your bloodstream:
Two Israeli scientists may have created the catalyst for a medical revolution with their new project: a tiny, 1-millimeter-diameter robot which is capable of crawling through human veins and arteries. The bot can cling to vessel walls using small, powerful arms which protrude from a hub in its center. Manned control is accomplished by using a magnetic field outside of the body, and the robot is able to swim against the flow of blood, as well as squeeze through a variety of arterial openings. Source: Mini-robot swims through bloodstream - Engadget
Could this be good? Sure! Imagine these little buggers (pun intended) cleaning out your arteries, or blasting cancer cells with targeted radiation or chemotherapy drugs. This could be a huge breakthrough. I’m sure, however, that it could be decades before we see it being used for real.