Walking; Sitting Down; Sitting; Standing Up - Ottobock Kenevo 3C60 Gebrauchsanweisung

7.2.2 Walking

Initial attempts at walking with the prosthesis always require the instruction of
trained, qualified personnel.
The hydraulics stabilise the knee joint in the stance phase and release the
knee joint in the swing phase so that the leg can swing forward freely.
In order to safely switch to the swing phase, the prosthesis has to be partially
unloaded from the lunge position with a simultaneous forward movement.
If desired, stance phase flexion of up to 10° can be permitted for this mode in
the adjustment software (setting only available in activity mode B).

7.2.3 Sitting down

The prosthesis makes it possible to sit down without unlocking it manually. The adjustable flexion
resistance of the hydraulic unit provides support while sitting down.
We recommend that the user supports themselves with their hands while sitting down, e.g.:
• Support on the armrests of the chair
• Support on the handles of a walker
• Use of forearm crutches
• Use of a cane
1) Stand 5 to 10 cm in front of the edge of the chair.
2) Place both feet side by side at the same level.
3) While sitting down, distribute weight evenly on both legs and push the pel­

7.2.4 Sitting

In a sitting position, i.e. when the thigh is close to a horizontal position and
there is no load on the leg, the knee joint switches to low resistance in both
the flexion and extension directions.
If an adequate load was not placed on the prosthesis while sitting down, the
leg remains extended during this process. Due to the nearly horizontal position
of the lower leg, the flexion resistance is reduced automatically and the lower
leg drops down on its own.

7.2.5 Standing up

The prosthesis supports standing up despite the low flexion resistance while sitting.
The resistance is increased after rising from the seat. From an angle of approx. 45°, the knee joint
identifies a "standing up process" which results in what is called "pre-locking" in the flexion dir­
ection. This function makes it possible to stand up with pauses in between. The joint fully sup­
ports weight during these pauses. If the process of standing up is discontinued, the "sitting
down" function is activated again.
The joint is locked after fully standing up.
While standing up, the edge of the chair should not yet touch the hollow of
the knee nor press against the lower leg.
vis in the direction of the backrest.
This causes the weight to shift to the heel and the prosthesis to tilt back­
ward, which makes the knee joint switch to the "sitting resistance". Sup­
port is therefore provided while sitting down.
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