The Magflow, the new generation of microcatheters created by scientists at the Swiss Federal Institute of Tequia in Lausanne, is a device that does not push the blood out, but rather uses the blood flow itself as a motor, as if surfing a microscopic river inside our body.

Catheters today already save lives at every moment, unclog arteries that could kill with a simple clot, stop fatal bleeding and deliver drugs directly to tumors that insist on defying conventional treatments, but two current models still have limitations, they are pushed with wires, they advance slowly, they often rub against the walls of the vessels and they fail to reach the narrowest paths within the human brain, where some of the most lethal problems are hidden.

To overcome this barrier, the small Magflow robot was designed with an almost poetic idea, letting the blood lead the journey, an externally guided magnetic tip and an ultra-flexible body that is twice smaller than the most advanced microcatheters in medicine, instead of fighting against the flow, it takes advantage of it to slide with minimal friction, avoiding invisible but serious damage; and the control of this route is totally futuristic, a robotic arm equipped with a magnetic field generator obeys the movements of a pen that the doctor holds.

Each gesture directs the tip of the microcatheter as if it were a kind of technological telepathy, allowing precise maneuvers in curves that seem like authentic labyrinths of life. In experiments conducted on arteries in the head, neck, and spine of pigs, the Magflow successfully navigated vessels so curved and narrow that mecha robotics had never reached, and most impressively, in addition to getting there, it can deliver treatments directly on the spot, from contrasts to people that block bleeding or attack.

This is where the future begins to reveal itself, scientists are already preparing specific versions to treat childhood eye cancer such as retinoblastoma and even to map seizures directly through the vascular network of the zero without opening the skull, without aggressive cuts, a silent revolution made of polymer, magnetism and robotic intelligence.