Robotic Ankle First Such Powered Prosthesis

A powered robotic ankle developed by the biomechatronics group at MIT's Media Lab was demonstrated by Hugh Herr, lab director, earlier this week. Herr wore the device on his right leg to demonstrate; he lost both his legs below the knee in a 1982 rock-climbing accident. This may be the world's first powered ankle prosthesis.


(World's first robotic powered ankle)

The powered robotic ankle is a biomimetic device; it imitates the energy storage performed by a living human ankle. When we walk, ligaments and tendons store energy as we move into a step; the same energy is released as we pass over that leg, moving forward. The robotic ankle contains a set of springs and a small, battery-powered motor. (See a detailed drawing of the powered robotic ankle.)

The energy-storage is similar to regenerative breaking used in hybrid cars; the new robotic ankle prosthesis is about twenty percent more efficient than previous designs.

"This is the first prosthesis that allows for a humanlike gait," said Herr. "It's strong enough to push my body forward and to propel me up stairs."

The team hopes to have a commercial version available by 2008. The device has been tested on able-bodied people in partnership with the Walter Reed Army Medical Center, as part of the Military Amputee Research Program. In tests, the robotic ankle does indeed appear to match the power of a normal ankle in walking.

Take a look at this related story describing how a Robotic Ankle Exoskeleton Helps Users Regain Limb Function. A different approach is used in the AKROD v2 - Active Knee Rehabilitation Device .

Via Technology Review.

Scroll down for more stories in the same category. (Story submitted 5/12/2007)

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 ( 3 )

Related News Stories - (" Medical ")

iFlytek Doctor Robot First To Pass Medical Exams
No problem, we'll just use the autodoc.

Watch What People Are Seeing Via Brain Scanning
'had managed to see through the other man's eyes as the other man, all unaware, washed their Zis limousine sixteen hundred meters away...' - Cordwainer Smith, 1958.

PRIMA Bionic Vision Restoration
'The VISOR... was a medical device used in the Federation to aid patients who have suffered loss of eyesight...'

Targeted Neuroplasticity Training For 'Downloading Skills'
'I know kung-fu.'

 

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

A 'Genuine Nanorobotic Production Factory'
'Microscopic machinery, smaller than ants, smaller than pins, working energetically, purposefully - constructing something...'

Neuromorphic Computer Offers Non-von Neumann Architecture
Fires faster than brain at 1/10K energy.

Evorus Your Crowd-Powered Conversational Assistant
'...the DS [Daily Schedule] was suddenly transformed into a valued confidante.'

Mealworms Food Of The Future
Get your grubs on.

Alibaba's AI May Read Better Than You
'Mike ... could accept other languages and was doing technical translating - and reading endlessly.'

Musk's Boring Flamethrower
'Skeletons in tatters. Burned by a flesh gun'

Humanity Star LEO Advertisement?
'Everyone has noticed those enormous advertisements...'

Nissan ProPILOT Slippers Are Self-Parking, Autonomous
Beyond science and fiction.

Atomristors - Atomic Memristors - Using Thin Nanomaterials
'I could almost feel those little tunnel junction neuristors working, forming their own interconnections as I operated it.'

Bigelow Prepares Inflatable Lunar Hotel
'Suddenly, hitherto unheard-of sums of money became available for investment in civilian orbital stations.'

Drunk Driver Of Tesla Claims Autopilot Was In Charge
'Mr. Garden, you are in no condition to drive.'

Medical Exoskeleton From Cyberdyne Gets FDA Approval
It's been a long road for HAL-5; I started writing about it in 2005.

Fungi-Infused Concrete Repairs Itself
'I noticed that curious mottled knots were forming, indicating where the room had been strained and healed faultily.'

Shiftwear Display Shoes
'He unlaced her shoe and glanced at its readout.'

NASA SEXTANT First With X-Ray Nav In Space
'You need at least four beacons for an accurate fix.'

GM Introduces Cruise AV With No Steering Wheel
'How about the steering wheel?' ... 'I do not need one.'

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.