Ottobock 17B203 Serie E-MAG Active Gebrauchsanweisung Seite 45

3) The patient is asked to step ahead with the leg that is fitted with the orthosis (position similar to heel strike).
While the patient briefly remains in this position, the technician confirms the position by pressing the top button
B (see Page ). A brief audible tone combined with a white light indicates confirmation.
4) The patient is then asked to simulate toe-off by positioning the leg behind the body's centre of gravity. Once
again, the position is confirmed by pressing the lower button C. An audible tone and light signal follow.
5) Now the software reports that the joint is in calibration mode. Now the patient can walk in the locked state until
the software warns the patient – by means of a different audible tone – that the joint is about to automatically
unlock at the end of the stance phase in order to facilitate an unobstructed swing-through. The system tries to
find the optimal switching point.
6) The calibration process is complete when the system indicates the knee joint is ready by means of an audible
tone (long, low tone, followed by long, high tone) and a light signal (green-white continuous light). These set­
tings are then saved by the software. If the technician or patient is not satisfied with the settings, steps 1-5 can
be repeated as often as desired.
Calibration process
45
Push and hold
auto-calibration mode
button (A) until light
signal/tone is emitted
4.1.6 Function and activation of acoustic mode after successful calibration
Acoustic mode is used to verify whether the switching points were correctly adjusted during calibration. Due to an
incorrect patient movement or if the orthosis alignment is not yet optimised, the switching points may deviate. In
acoustic mode, an audible tone is emitted in parallel to joint operation during switching processes of the electron­
ics. The audible signal confirms releasing and locking of the joint.
Acoustic mode is activated by pressing the button T.
4.1.7 Electronic unlocking (once)
With the lower button C, the patient can unlock the joint once (e.g. in order to sit down). In order to do so, he
briefly presses button C twice in quick succession (like double-clicking a computer mouse). This function is not
confirmed by an audible signal.
4.1.8 Electronic locking (permanent)
If the patient feels unsafe, he can lock the joint using the top button B. This may be the case when walking on a
slope or if the patient wants to stand up for an extended period of time without focusing on the electronic control
unit. In order to do so, he briefly presses button B twice in quick succession (like double-clicking a computer
mouse). This function is confirmed by an audible signal.
The locking function is deactivated by pressing the upper button B twice in quick succession until you hear an aud­
ible signal.
4.1.9 Mechanical unlocking (temporary)
For certain activities (e.g. cycling), it may be beneficial to temporarily unlock the E-MAG Active joint. Mechanical
unlocking of the system is done directly on the knee joint (switch to "
In order to restore the functionality of the E-MAG Active joint, cancelling the unlocking feature is required. In order
to secure the system again, the switch is operated again in the opposite direction. The normal state of the joint is
indicated by the symbol of a walking person (switch to " ").
17B203=* E-MAG Active
Push and hold top
button (B) until light
signal/tone is emitted
Working instructions for electronic components
Push and hold lower
button (C) until light
signal/tone is emitted
").
Ottobock | 45