"Robots will replace our jobs in the future" - I think we've all read that a thousand times, but it's true.
One of the only professions we thought can't be replaced by robots is that of a Doctor - but maybe, even this job could be handled by robots soon.
Experts suggest that we will be in need of 40 million additional health workers by 2030 - so if we could find a way to let technology cover part of this burden, it could make a huge change.
Especially in remote areas or low-income countries that can hardly train enough health workers, technical innovations like these could provide lots of benefits.
There are already a few of these ingestible medical robots on the market, and today I'd like to show you some different examples.
Ingestible Origami Robot
This tiny robot has a magnet in its center, which can be controlled outside of the patient once it's reached his gut.
The innovation was developed at the Computer Science and Artificial Intelligence Laboratory at MIT.
It's called an "Origami Robot" because it's made out of magnets attached to dried pig intestines, and then encapsulated in ice to create a pill. Once it's reached the stomach, the structure slowly unfolds like a piece of Origami, revealing the magnet in the center.
While the technology itself is ready and works, the team is still waiting to do some in-vivo testing.
Getting that approval takes around 3 years - and then taking it from animal to human testing, another 3 years.
What could this robot be used for?
These tiny robots could patch wounds, deliver medicine on command, or remove foreign objects from the body.
One example would be recovering button batteries that have been swallowed - which happens over 3000 times a year in the US alone.
The robot could magnetically attach itself to the battery, remove it from the membrane where it's usually stuck to, and then simply transport it out of the body through the digestive system.
Robotic Insulin Pill
Rather than transporting something bad away from the body, tiny robots could also be used to deliver something good.
Millions of diabetics around the world are forced to inject themselves insulin - imagine what an impact it would have if you they could simply take the insulin in form of a pain-free pill!
Delivering biological drugs in oral form isn't a new idea, and has been tested countless times - but the challenge to overcome is that the enzymes in the stomach break down all proteins, which therefore wouldn't be absorbed properly.
Now, a research team from Rani Therapeutics in San Jose has developed a new coating for the pill that enables it to go past the stomach without being digested. The pill then moves on to the intestinal tract, where the insulin can be delivered through micro injections via tiny needles that consist of sugar crystals.
"Six years ago I was in a conversation with a pharma executive of a large US company. He mentioned that one of the things that would be a holy grail in biologics will be orally deliverable biologics and why no one has thought about it. (...) Intestines do not have sharp pain receptors like your skin does, so a needle that pokes your skin is painful, but if needle is poked into your intestine, you don't even feel it, so there is no pain"-Mir Imran, biotech entrepreneur and head of Rani Therapeutics
Autonomous Gelatin Robots
A research team at the Swiss Federal Institute of Technology in Lausanne (EPFL) has developed gelatin-based edible robots.
The soft structure doesn't need to be controlled externally, it uses chemical reactions with air and liquids to move in a worm-like manner.
The gelatin doesn't taste of anything and can be passed through the body's digestive system normally.
“A year ago, [co-author] Jun Shintake came to me and said, ‘we are doing all of these bio-inspired robots, but biological systems are eaten and our systems are not’,” he explains. “I thought that’s very interesting. Food and robots have very different constraints and properties. Even before thinking about what we could make out of them, I though it was a very interesting challenge to see if we can marry these two fields.”-Dario Floreano, director of the Laboratory of Intelligent Systems at EPFL
Use cases
These gelatin robots could also be used to deliver medicine to certain parts of the body, similar to the Origami robots. But of course, they offer the huge advantage that they don't need to be controlled from the outside, but instead can operate on their own.
Although this technology is more revolutionary and advanced, it's also facing more critical challenges and will definitely have to undergo several more years of testing until we can expect real-life usage.
Ethical concerns
Of course, technologies like this raise many ethical questions. The thought of putting a robot inside your body, let alone an autonomous robot, can be quite frightening. But these technologies are still in its infancy and far from having the ability to damage our body from within, or being abused.
But still, technology and science will merge more and more in the medical field, and we will eventually get confronted with these ethical concerns more regularly.
What do you think about these ingestible robots?
© Sirwinchester