Within two steps sensors in the Rheo Knee, shown here, calculate walking speed, judge the terrain and start compensating for potential problems. Another Ossur product, the Power Knee, uses a sensor placed on an amputee's natural leg that allows it to make speed and terrain calculations in half a step. The sensor communicates with the prosthetic via wireless Bluetooth technology.
The Rheo Knee is a lighter prosthetic, with relatively long battery life, making it suitable for patients who are relatively active or who don't need the added power of a motor. The Power Knee weighs about as much as a human leg, while the Rheo knee weighs less at about 3.6 pounds.
Ossur says its products produce roughly 70 percent to 85 percent of the functionality of a normal limb. The Rheo Knee costs some $35,000 to $40,000, while the Power Knee costs as much as $100,000. A basic mechanical leg, including customization and fitting, can cost up to $25,000.
Talkback
More ZDNet Photo Galleries
SmartPlanet
- Thought-provoking progressive ideas on diverse topics that intersect with technology, business, and life, and matter to the world at large. Visit SmartPlanet
- More from IBM
-
- How to Drive Better Business Outcomes with Exceptional Web Experiences Download the eBook
- Driving Business Agility through SOA Connectivity & Integration Read the White Paper from IBM
- Linking Decisions and Information for Organizational Performance Read the Tom Davenport study
