Is this what you're talking about?
C-LEG: The C-leg (computerized leg), developed by Otto Buck, is a microprocessor-controlled knee-shin system. Sensors within the leg take readings 50 times a second. They measure where the knee is and how much weight is on the foot. From there, real-time adjustments are made to keep the person steady on his or her feet. Also, a hydraulic system in the knee allows the person to have more control over the leg when they sit. Computer controls make for easy adjustments. If the person desires more or less tension in the knee, a prosthetist can make the changes on a computer, which is hooked up to the prosthetic limb and the changes are downloaded in a matter of seconds.
When a person stumbles, the leg is able to sense the change, and increase the resistance so the person does not fall to the ground as they would be likely to do with a traditional prosthetic. Also, a traditional prosthetic is free swinging, whereas the C-leg knows when it can swing freely and when it can not, which gives the person more security as they walk.
The C-leg is recommended for lower limb amputees under 220 pounds who have a moderate or higher functional level. The knee works on a lithium battery that lasts 25 to 30 hours.
COST: The C-leg is slightly more expensive than a more traditional prosthetic. It ranges in price from upper $30,000 to lower $40,000 dependent on the socket and the foot put with the leg.
FUTURE: Prosthetist with Hanger Prosthetics and Orthotics Harvey Sosnoff says the future is likely to have a wireless system. This would make adjusting the settings even easier than it is now. Currently, the patient has to walk while hooked up to a laptop computer by a cable. In the future, Sosnoff hopes to be able to do it wirelessly. Also, Sosnoff expects in the future the limbs will be made even lighter than they are currently.
For a list of certified practitioners using the C-leg, go to http://www.ottobockus.com/products/o..._cleg_prac.asp
FOR MORE INFORMATION
Hanger Prosthetics and Orthotics
877-4-HANGER
www.hanger.com