C-leg is a mobility game-changer for people with above-knee amputations offering high-tech sensors that constantly evaluate and make precise adjustments at every moment of every step.
Bluetooth®
Integrated Bluetooth® technology permits straightforward communication with the joint. An existing connection is displayed with an LED. Bluetooth® can be deactivated if necessary.
Lithium-ion battery
A lithium-ion battery provides energy for controlling the knee joint. It is located right in the rotation axis of the C-Leg. If you use the C-Leg on a daily basis, we recommend that you always charge the battery overnight.
Knee angle sensor
The knee angle sensor provides important data: It measures the flexion angle and angular velocity of the joint.
Electronic control unit
The integrated microprocessor receives and processes sensor signals. It controls the movement of the knee joint in real time.
Inertial motion unit (IMU)
The gyroscope and acceleration sensors allow the position and acceleration of the C-Leg in space to be measured. Prosthetic Control is based on motion analysis and additional force determination.
Hydraulic unit
The hydraulic unit controls the C-Leg. It generates movement resistance for flexion and extension during the stance and swing phase.
New carbon frame design
In order to withstand the varied demands of everyday life, the frame is made of carbon – an especially strong, high-grade and lightweight material. The frame houses and protects the electronics, the hydraulic unit and the battery. Thanks to its new design, the C-Leg has a lower system height and therefore a larger fitting spectrum.
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![ottobock c-leg with Bluetooth®]()
Bluetooth®
Integrated Bluetooth® technology permits straightforward communication with the joint. An existing connection is displayed with an LED. Bluetooth® can be deactivated if necessary. -
![ottobock c-leg Lithium-ion battery]()
Lithium-ion battery
A lithium-ion battery provides energy for controlling the knee joint. It is located right in the rotation axis of the C-Leg. If you use the C-Leg on a daily basis, we recommend that you always charge the battery overnight. -
![ottobock c-leg Knee angle sensor]()
Knee angle sensor
The knee angle sensor provides important data: It measures the flexion angle and angular velocity of the joint. -
![ottobock c-leg Electronic control unit]()
Electronic control unit
The integrated microprocessor receives and processes sensor signals. It controls the movement of the knee joint in real time. -
![ottobock c-leg Inertial motion unit (IMU)]()
Inertial motion unit (IMU)
The gyroscope and acceleration sensors allow the position and acceleration of the C-Leg in space to be measured. Prosthetic Control is based on motion analysis and additional force determination. -
![ottobock c-leg Hydraulic unit]()
Hydraulic unit
The hydraulic unit controls the C-Leg. It generates movement resistance for flexion and extension during the stance and swing phase. -
![ottobock c-leg carbon frame]()
New carbon frame design
In order to withstand the varied demands of everyday life, the frame is made of carbon – an especially strong, high-grade and lightweight material. The frame houses and protects the electronics, the hydraulic unit and the battery. Thanks to its new design, the C-Leg has a lower system height and therefore a larger fitting spectrum.
in step with high-tech
"Even the tallest mountain top is within reach if you just keep climbing, one step at a time."
Victor Bustamante
LPO, President & Owner
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Community Resources
Our Resources section offers everything from information about getting the most from your device, frequently asked questions, and educational materials to upcoming events to inspire and support you on your journey. If you would like to contribute to this section please feel free to contact us!
"Even the tallest mountain top is within reach if you just keep climbing, one step at a time."
Victor Bustamante
LPO, President & Owner
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