Mu-Gripper Microsurgical 'Robots'

Tiny Mu-Gripper 'robots' the size of a speck of dust are the latest way to perform a biopsy in the constrained regions of the body.


(Mu-gripper by magnetic catheter)

In two recent peer-reviewed journal articles, the team reported successful animal testing of the tiny tools, which require no batteries, wires or tethers as they seize internal tissue samples. The devices are called “mu-grippers,” incorporating the Greek letter that represents the term for “micro.” Instead of relying on electric or pneumatic power, these star-shaped tools are autonomously activated by the body’s heat, which causes their tiny “fingers” to close on clusters of cells. Because the tools also contain a magnetic material, they can be retrieved through an existing body opening via a magnetic catheter.

In the April print edition of Gastroenterology, the researchers described their use of the mu-grippers to collect cells from the colon and esophagus of a pig, which was selected because its intestinal tract is similar to that of humans.

“This is the first time that anyone has used a sub-millimeter-sized device—the size of a dust particle—to conduct a biopsy in a live animal,” said David Gracias, an associate professor of chemical and biomolecular engineering whose lab team developed the microgrippers.

Technovelgy readers will not be surprised if I reference the Proteus from the 1966 film Fantastic Voyage. However, a more intriguing reference comes to mind; 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 Red Death, a.k.a. 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...The victim was just a big leaky sack of undifferentiated gore at this point and, of course, never survived.

Via Johns Hopkins.

Scroll down for more stories in the same category. (Story submitted 4/21/2013)

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 ")

Neural Implant To Treat Memory Loss
'You've got remote storage. How regular is the update?'- Richard Morgan, 2003.

The Claustrum - The Brain's On Off Switch?
'All I have to do is move this switch and he'll recover consciousness...'- John Brunner, 1976.

Beating Mini-Heart Grown In Lab
'Runciter's body contained a dozen artiforgs...'- Philip K. Dick, 1969.

An 'OFF' Switch For The Brain
'Yes, sir, he's status go.'- John Brunner, 1975.

 

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

NASA's Highway In The Sky For Drones
Traffic is everywhere.

Palcohol Powdered Alcohol - Try Or Ban?
'I had a small can of powdered alcohol disguised as tooth powder...'

pd.id Personal Drink ID Device Like Dune 'Poison Snooper'
'The jeweled hands clutching drinks (and the unobtrusive inspections with tiny remote-cast snoopers)...'

Monsieur Bartending Robot
'He poured the liquids into his maw...'

Cities Detect Gunfire Acoustics With ShotSpotter
'Sound trackers on the roof...'

Cruise Automation's 'Highway Autopilot' For $10K
'It cut her out of the stream of vehicles and reduced the speed of her car...'

Pengheng Space Capsule Hotel Staffed Entirely By Robots
'A planet-wide chain of hotels that specialized in non-human service.'

Electric Bacteria That Live On Pure Energy
'April 5, 1977; that was the night the waveries came.'

EXACTO Smart Bullet From DARPA
Nicely visualized in what 1984 movie?

Neural Implant To Treat Memory Loss
'You've got remote storage. How regular is the update?'

MIT's Shape-Shifting Robot Materials
The T-100, an advanced prototype, is made of liquid metal. Not quite ready.

LS3 AlphaDog Robot Marine Corps Video
'He admired the fast-plodding, articulated legs, so necessary since roads had degenerated...'

Vantablack Is Blacker Than Your Black
'Well, we have a black coating now that’s ninety-nine percent absorptive...'

Remotely Operated Gardening Rover - Student's Space Agricultural Robot
'There were things growing all over the place, not just in some domed enclosures blasted some millions of miles out in to space.'

Revisiting A Cloud City On Venus
Lando Calrissian, are you still available?

'Windowless Cockpit' Like Star Trek's Patent Applied For
Mr. Sulu, take us out.

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.