Best Inventions of 2009: The $20 Knee
TIME’s picks for the best new gadgets and breakthrough ideas of the year, we’ll feature some of the ones we find interesting.
Tens of thousands of amputees in the developing world wear an inexpensive prosthetic called the Jaipur Foot. But poor patients who lose a knee joint have few options: a titanium replacement can cost $10,000, and crude models don’t work very well.
Now a team of Stanford engineering students has designed a knee that’s not only dirt cheap — just $20 — but also mimics the natural joint’s movements. Developed with the Jaipur Foot group, the JaipurKnee is made of self-lubricating, oil-filled nylon and is both flexible and stable, even on irregular terrain.
The device is being tested in India; more than 300 people have been fitted so far.
The Jaipur Knee comprises five pieces of plastic and four nuts and bolts. It requires no special tools and takes just a few hours to manufacture.
Photo by virtualworldlets.ne.













JimKukral on November 16th, 2009 10:02 am
Best Inventions of 2009: The $20 Knee http://bit.ly/3eGNgP
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winner888 on November 16th, 2009 2:42 pm
Best Invention of 2009: The $20 Knee http://bit.ly/2QkRMi
This comment was originally posted on Twitter
Erika on November 16th, 2009 3:53 pm
Thanks for the post about the JaipurKnee! Our designers at remotion designs are currently working on an elbow joint, too!
Angela Shupe on November 17th, 2009 3:27 am
I also think it is great that they were able to come up with something that affordable which will also do the job. If what Erika said it is true, I can’t wait to see how far they are able to go in helping those in need.
I read the whole section on the Best Inventions of 2009 in the magazine. They definitely dug up some very innovative products for this year. I especially liked the race car and the light bulb.
irfan on November 18th, 2009 7:15 pm
this is great and the best invention hope many other invention will help people and they will avalibale at cheap.
Irfan
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