Robot Swarm Performs Colonoscopy And Biopsy

I have to say I have my doubts about this procedure as an alternative to colonoscopy.


(Robot swarm microgrippers perform colonoscopy)

At Johns Hopkins University, in Baltimore, David Gracias and his colleagues have developed microgrippers—star-shaped devices that can measure less than 500 micrometers from tip to tip. The grippers can be made of materials that respond to environmental factors such as temperature, pH, and even enzymes. A temperature-sensitive gripper’s arms will close when exposed to the body’s heat. If placed well, the arms will close around tissue, performing a miniature biopsy.

Such grippers might provide a less invasive way to screen for colon cancer in patients who suffer from chronic inflammatory bowel diseases. Today, Gracias says, such screening can involve taking dozens of samples with forceps, in an effort to get good statistical coverage of the interior surface of the colon. Instead, a doctor could insert hundreds or thousands of microgrippers into the colon through a tube and then retrieve them using a magnet or, later, by sifting through the patient’s stool.

Based on tests in live pigs, Gracias’s team estimates that about one-third of the grippers capture tissue. Others may come up empty-handed because they have the wrong orientation or close before reaching anything. But he says this approach, which minimizes the cost and maximizes the ease of manufacturing, could be powerful.

“The typical idea has been that you have one device that you guide precisely [to perform a] surgical procedure,” Gracias says. His strategy borrows a page from the imperfect world of biology: “If you have a large number of not-perfect devices, you may be able to achieve the same functionality as one perfect one.”

These microgrippers bear an uncomfortable resemblance to the cookie-cutters from Neal Stephenson's 1995 novel The Diamond Age.

Microscopic invaders were more of the threat nowadays. Just to name one example, there was ... the Seven Minute Special, a tiny aerodynamic capsule that burst open on impact and released a thousand or so corpuscle-sized bodies, known colloquially as cookie-cutters, into the victim's bloodstream. It took about seven minutes ... for the cookie cutters to be randomly distributed throughout the victim's organs and limbs.

A cookie-cutter was shaped like an aspirin tablet ... two tiny centrifuges. Detonation dissolved the bonds holding the centrifuges together so that each of a thousand or so ballisticules suddenly flew outward...
(Read more about cookie-cutters)

If long-time Technovelgy readers think that this story seems familiar, you're right; I wrote about Microgrippers Grab, Cut Tissue Internally in 2008. Technovelgy readers always have one foot in the future!

Via IEEE Spectrum.

Scroll down for more stories in the same category. (Story submitted 5/29/2015)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Medical ")

BrainEx Restores Some Activity To Severed Pig Head
'... they placed the brain in a special solution, having all the properties of Nursing the brain cells.' - Edmond Hamilton, 1929.

Purdue Pharma Ready To Profit From OxyContin Use Or Addiction Recovery
'It may be organic damage. It may be permanent. Time'll tell, and only after you are off Substance D for a long while.' - Philip K. Dick, 1977.

Organaut! Russians 3D Print Living Tissue In Space
'For a while your colonists will have to come up [to orbit] to the Hospital...' - Larry Niven, 1968.

MIT Scientists Create 'Peek-a-Boo Prober' From Jetsons
Well, George, it's the latest thing.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

Datagrid Model Generation Perfect For Eternal Cities Of Science Fiction
'... there was enough flexibility to allow for wide variation.

Kazahk Ironist Protester Arrested For Blank Sign Protest
'...a man carried a white rectangular sign, blank on both sides.'

Bitcoin Surges Again, To $7,000
'... electronic, private cash, unbacked by any government, untraceable, completely anonymous.'

China Develops Taste Testing Robots
'Install taste buds in the end of one tentacle...'

North Sea Stone Age Reconstruction And Philip K Dick
'Your Dip digs back into antiquity. Rome. Greece. Dust and old volumes.'

Tesla Robotaxis Will Automatically Recharge Themselves
'Then it appeared to make up its mind, and trundled over to a wall socket...'

New Lifelike Material Powered By Artificial Metabolism
'... The biological robots were not living creatures.'

Husqvarna Automower 435X AWD
'Gramp Stevens sat in a lawn chair, watching the mower at work...'

Elon Musk Foretells Tesla Sans Steering Wheel
'How about the steering wheel... I don't need one.'

Adversarial Patches Trick Computer Vision
'The surveillance cameras can all see it, but then they forget they’ve seen it.'

Amazon Warehouse Computer Can Fire People Now
'The system has already fired five people...'

BrainEx Restores Some Activity To Severed Pig Head
'... they placed the brain in a special solution, having all the properties of Nursing the brain cells.'

Yes, But Do Astrobees Have Lasers For Lightsaber Training?
'... Ancient weapons are no match for a good blaster at your side, kid.'

'Young Razorbacks Before Their Katanas Grow In'
'Twin robotic arms with gleaming three-foot sword blades unfolded from the forward hydraulic assemblies...'

A New Way To Run Into Things
'He made an adjustment, pointed the tube at the wall beside Etzwane, and projected a cone of light.'

'Metallic Wood' Strong Like Titanium, Floats In Water
'A metal... light as cork and stronger than steel...'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.