Meet the robot that can move inside the human body

Meet the robot that can move inside the human body

If the idea of ​​mini-robots moving around inside the human body is considered a work of fiction, then everything suggests that this could be repeated over a few years, depending on the researchers Vanderbilt Universityin Tennessee.

They recently announced their new version”Mirobot”, a millimeter-long robot that works by remote control and has the ability to crawl inside the human body and is especially thought to be able to move within the gut and alveoli for drug and even sensor applications.

In his previous version, he was unable to move due to a lack of adhesion to the body’s internal surfaces and body fluids, so any sudden movement would drive him away. That problem has been fixed in its new version, which now has a small pad filled with needles that sticks to the mucus and doesn’t come off easily during movements akin to breathing or digestion.

second Metin Sitiof Max Planck Institute Smart systems, in Germany, positive results with Mirobot register”A major milestone in lightweight robotics“.

A major advance in treatment

Mirobot Made of an ultra-thin elastic magnetic metal measuring 3.7mm long and 1.5mm wide, it can carry three times its own volume and 20 times its own weight, according to study co-authors. Wu Yingdan.

To be controlled, the researchers need to use a machine to manipulate the electromagnetic field near the organ so that the organ Mirobot Rotation, where when one foot hits the ground, the robot pulls the other foot off the ground and turns the body to take a “step” inside the body.


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As for the barriers to making it so the mucous membranes can attach and release, that’s a long one. According to the study co-authors, Dong Xiaoguang From Vanderbilt University Tennessee:

“The team first tried adding cushions to the tissue-grabbing claws, inspired by the way some intestinal parasites attach themselves. But they had trouble reproducing the high strength needed — and getting the robot to break free was tricky.”

The solution found by the team of researchers comes from us Brazilians, at least those who walk outdoors know glitches well.

To simulate the same sticking and releasing effect, the needle’s “cushion” was covered with a thin layer of crustacean chitosan, which gave very positive results in testing, as it now created friction and stickiness. Enough to grab the mucus layer inside the pig’s lungs and digestive tract.

In various tests conducted in the lab, the team was very excited about their results.picture Mirobot It only attaches to the mucous membranes and does not cause any damage to the internal tissues, which makes it useful for different types of treatments and even bringing materials into organs such as the heart.

You can’t rule out the idea that, in the future, we may have many of us using microrobots to tackle the most diverse diseases.

The full survey can be read here.

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Source: New Scientist, Scientific Organization

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