At EPFL, Lucio Pancaldi, a Ph.D. student, and Selman Sakar, an assistant professor, have harnessed hydrokinetic energy (mechanical energy resulting from the motion of liquids) to get an instrument into places in the human body without resorting to invasive methods. "Large proportions of the brain remain inaccessible because the existing tools are unwieldy, and exploring the tiny, intricate cerebral vascular system without causing tissue damage is extremely difficult," says Sakar.
source https://techxplore.com/news/2020-12-endovascular-technology-explore-capillaries.html
