C-Leg compact Prosthetic System
Ottobock | 29
CAUTION
Thermal overloading.
Extended exposure to high temperatures can lead to defects and result in malfunction of the
joint up to loss of function due to structural failure. This can cause the patient to fall.
Avoid areas with extreme temperatures (see Section 3.3 “Technical Information”).
CAUTION
Mechanical overloading.
Exterior mechanical impact or stress such as shocks and vibrations can lead to
• short circuits in the electronics and battery and result in malfunction of the joint;
• defects on the battery and hydraulic damper resulting in leakage of liquid; or
• loss of function due to structural failure.
This can cause the patient to fall as well as result in skin irritation.
Do not expose system components to mechanical vibrations or shocks.
CAUTION
Penetration of dirt and humidity.
Penetration of dirt and humidity into the system components can lead to
• short circuits in the electronics and battery and result in malfunction of the joint;
• defects on the hydraulic damper resulting in leakage of liquid; or
• loss of function due to structural failure.
This can cause the patient to fall as well as result in skin irritation.
• Do not let foreign particles or liquids enter the system components. Should the joint come into contact with liquid,
remove the cosmetic cover and let the components dry. The joint must then be sent to an authorized Ottobock
Service for inspection. Your prosthetist is the contact person.
• Always close the plastic cover of the protective elastomer cap after use.
• If the C-Leg compact comes into contact with salt water, immediately clean it with a cloth moistened with fresh-
water and let it dry. The joint must then be sent to an authorized Ottobock Service for inspection. Your prosthetist
is the contact person.
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;
• loss of function due to structural failure; or
• defects on the battery and hydraulic damper resulting in leakage of liquid.
This can cause the patient to fall as well as result in skin irritation.
• The C-Leg compact was designed for everyday activities and must not be used for unusual activities such as
extreme sports (i.e. free climbing, paragliding, etc.).
• Careful handling of the prosthesis and its components not only increases their service life but, above all, ensures
your personal 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 Ottobock Service Centre.
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.
This can cause the patient to fall as well as result in skin irritation. Touching overheated components can cause
burns.
• Pay attention to the vibration signals that will occur in such cases to alert you that there is a risk of overheating.
As soon as these vibrations begin, all activities must be stopped and the hydraulic unit be allowed to cool down.
You may resume your activities once the vibration signals stop.
• If activities are continued despite the vibration signals, the hydraulic element may overheat and, in extreme cases,
lead to a damage to the C-Leg compact. The joint should then be sent to an authorized Ottobock Service for
inspection.
