Sitting Function; Standing Up; Walking Up Stairs; Walking Down Stairs - Otto Bock C-Leg 3C98-3 Instructions For Use Manual

Use
If the patient is in a sitting position for more than two seconds (i.e. the thigh is close to hori­
zontal and there is no load on the leg), the knee joint switches the resistance to a minimum
in the extension direction.
A sitting function can be enabled using the adjustment software. For more information about
the sitting function, see the following section.

9.1.4.1 Sitting function

INFORMATION
To use this function, it needs to be enabled in the adjustment software. It also has to be activated using the Cock­
pit app (see Page 32).
In the sitting position, the resistance in the flexion direction is reduced in addition to the reduction of resistance in
the extension direction. This makes it possible to swing the prosthetic leg freely.

9.1.5 Standing up

Flexion resistance is increased steadily while standing up.
1) Place the feet at the same level.
2) Lean the upper body forward.
3) Put the hands on armrests, if available.
4) Stand up with support from the hands while keeping weight evenly distributed on feet.

9.1.6 Walking up stairs

Walking up stairs step-over-step is not possible.
1) Hold the handrail with one hand.
2) Place the foot of the sound leg on the first step.
Bring up the leg with the prosthesis.

9.1.7 Walking down stairs

This function must be practised and executed consciously. Only when the sole is properly
positioned can the system react correctly and permit controlled flexion.
1) Hold the handrail with one hand.
2) Position the leg with the prosthesis on the step so that the foot projects halfway over the
3) Roll the foot over the edge of the step.
4) Place the foot of the other leg onto the next step.
5) Place the foot of the prosthetic leg on the next step after that.
30
edge of the step.
→ This is the only way to assure a secure rollover.
→ This flexes the prosthesis slowly and evenly in the knee joint.
C-Leg 3C98-3/3C88-3