Otto Bock C-Leg 3C98-3 Instructions For Use Manual page 24

If the activity level is not reduced in spite of the pulsating vibration signals, this could lead to
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the hydraulic element overheating and, in extreme cases, cause damage to the product. In
this case, the product should be inspected by an authorised Ottobock Service Centre.
CAUTION
Overloading due to unusual activities
> Falling due to unexpected product behaviour as the result of malfunction.
> Falling due to breakage of load-bearing components.
> Skin irritation due to defects on the hydraulic unit with leakage of liquid.
The product was developed for everyday use and must not be used for unusual activities.
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These unusual activities include, for example, extreme sports (free climbing, paragliding,
etc.).
Careful handling of the product and its components not only increases their service life but,
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above all, ensures the patient's personal safety!
If the product and its components have been subjected to extreme loads (e.g. due to a fall,
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etc.), then the product must be inspected for damage immediately. If necessary, forward the
product to an authorised Ottobock Service Centre.
CAUTION
Improper mode switching
Falling due to unexpected behaviour of the product because of changed damping behaviour.
Ensure that the patient stands securely during all switching processes.
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Inform the patient that the changed damping characteristics have to be verified after switch­
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ing and feedback from the acoustic signal emitter must be observed.
Switching back to basic mode is mandatory once the activities in MyMode have been com­
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pleted.
If required, take the weight off the product and correct the switching.
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CAUTION
Improper use of the stance function
Falling due to unexpected product behaviour because of changed damping behaviour.
Make sure that the patient is standing safely when using the stance function and checks the
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lock of the knee joint before placing his/her full weight on the prosthesis.
Inform the patient whether and in what way the stance function was configured in the adjust­
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ment software. Information on the stance function Stance function.
CAUTION
Quickly pushing the hip forward with the prosthesis extended (e.g. serve while playing
tennis)
> Falling due to unexpected activation of the swing phase.
Note that the knee joint may flex unexpectedly when the hip is pushed forward quickly while
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the prosthesis is extended.
If the patient participates in sports where this movement pattern can occur, configure corre­
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sponding MyModes using the adjustment software. For further information about the
MyModes, see the section 'MyModes' (MyModes).
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