Ottobock C-Brace Gebrauchsanweisung Seite 63

Adjustment with Ottobock C-Soft
For some patients, the optimum stance phase flexion damping setting (STP Flexion Damping) may be too low for
walking on level ground. This is why the parameter 'STP Flexion Damping Plus' is available in expert mode.
During physiological walking, slight flexion in the knee joint follows shortly after heel strike with the knee extended.
This movement pattern is called "stance phase flexion".
Due to muscular deficits and/or contractures in the knee or hip joint, some patients flex the knee excessively in this
gait phase. As a result, more energy needs to be expended for the renewed extension of the knee joint with simul­
taneous forefoot load.
With the parameter 'STP Flexion Damping Plus', increased stance phase damping (STP Flexion Damping) can be
configured which is only active following a swing phase while walking on level ground and only for a short time
(STP Flexion Plus Time [*20ms]).
It is activated at the time of swing phase extension, shortly before the leg is fully extended. After the time 'STP Flex­
ion Plus Time [*20ms]' has elapsed, the system switches back to normal stance phase damping (STP Flexion
Damping).
Adjustment:
Have the patient walk on level ground and observe the stance phase flexion. If the patient flexes the knee very far,
the parameter 'STP Flexion Damping Plus' should be set to a higher value.
STP Flexion Plus Time [*20ms](only in expert mode)
The parameter 'STP Flexion Plus Time [*20ms]' determines the length of time for which damping 'STP Flexion
Damping Plus' is active. After this time has elapsed, the system switches back to regular stance phase damping
(STP Flexion Damping).
To avoid limiting comfort and safety on ramps and stairs, this parameter should be set to the shortest possible time.
Ideally this parameter reflects the duration of the stance phase while walking on level ground.
This setting is only available in expert mode. In the delivery condition, the parameter is set to 0. This means the
function is deactivated.
Adjustment:
Have the patient walk on level ground and continue reducing the time until bending during stance phase flexion
can be clearly observed. Take note of feedback from the patient.
Adjustment error:
If the configured time is too long, flexion when stepping onto ramps or stairs may be delayed; this can cause the
patient to fall.
If the configured time is too short, this results in a loss of comfort when walking on level ground.
C-Brace Ottobock | 63