CAUTION
Manipulations on system components. Any changes or modifications you make to system components
on your own initiative can lead to malfunction of the joint up to loss of function due to structural failure. This
can cause you to fall.
Any changes or modifications to the device may limit its use.
The opening and repairing of the joint may only be performed by authorized Otto Bock technicians and the
handling of the battery may only be carried out by Otto Bock Service Centres (exchanges are not permissible).
Your prosthetist is the contact person.
CAUTION
Magnetic interferences. The joint can malfunction when near high-tension power lines, transmitters, trans-
formers, CT scanners, or other sources of strong electromagnetic radiation (such as security systems for
goods in department stores). This can cause you to fall.
Avoid proximity to strong magnetic and electric interference sources (e.g. transformer stations, high-powered
radio, television transmitters or CT scanners).
CAUTION
Improper use of the joint. Any kind of overloading or excessive strain as well as improper use can lead
to defects and result in malfunction of the joint, to loss of function due to structural failure, or to battery or
hydraulic damper defects what may result in liquid leakage.
This can cause you to fall as well as result in skin irritation.
The C-Leg has been developed for everyday use and must not be used for unusual activities such as extreme
sports (free climbing, paragliding, etc.).
Careful handling of the prosthesis and its components not only increases their service life but, above all,
ensures your safety. Should the prosthesis be subjected to unusual stresses (such as a fall), immediately
contact your prosthetist and have the prosthesis inspected for any damage.
If necessary, the responsible prosthetist will pass the prosthesis on to the Otto Bock Service.
WARNING
Risk of accident when driving a motor vehicle. The ability of leg prosthesis users to drive a motor vehicle
is determined on a case-by-case basis. Criteria include the type of fitting (amputation level, unilateral or
bilateral, residual limb conditions, design of the prosthesis) and the amputee's individual abilities.
All persons are required to observe their country's national and state driving laws when operating motor
vehicles. For insurance purposes, drivers should have their driving ability examined and approved by an
authorised test centre.
Otto Bock recommend that the motor vehicle be professionally retrofitted to the user's individual needs (e.g.
automatic shift). Risk-free driving must be ensured even when the leg prosthesis is not functioning.
Before operating a motor vehicle, make sure to turn off the standing mode feature using the remote control unit.
CAUTION
Overheating of the hydraulic unit. Extended, continuous use (e.g. lengthy downhill walks) can lead to
• overheating of the hydraulic unit and result in malfunction of the joint; or
• defects on the hydraulic damper resulting in leakage of liquid.
22 | Ottobock
C‑Leg