Otto Bock E-MAG Active 17B203-L Instructions For Use Manual page 42

Preparation for use
5) The software now reports that the joint is in calibration mode. The patient can then walk in the locked state until
the software uses a different audible tone to warn the patient 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 (continuous green-white 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
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Push and hold
auto-calibration mode
button (A) until light
signal/tone is emitted
5.3.1.5 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.
5.3.1.6 Electronic unlocking (once)
The patient can use the lower button C to unlock the joint once (for instance in order to sit down). They can do this
by briefly pressing button C twice in quick succession (like double-clicking a computer mouse). This function is not
confirmed by an audible signal.
5.3.1.7 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.
5.3.1.8 Mechanical unlocking (temporary)
CAUTION
Risk of injury due to unlocking of the knee joint
After activating the release mechanism / unlocking feature (switch to "
E-MAG Active system. In order to use the system for walking (switch to " "), it must first be secured by reactivat­
ing the release mechanism.
For certain activities (such as cycling), it may be beneficial to temporarily unlock the E-MAG Active joint. Mechanic­
al unlocking of the system is done directly on the knee joint (switch to "
The unlocking feature needs to be cancelled in order to restore the functionality of the E-MAG Active joint. The
switch is pushed in the opposite direction to secure the system again. The normal state of the joint is indicated by
the symbol of a walking person (switch to " ").
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Push and hold top
button (B) until light
signal/tone is emitted
Push and hold lower
button (C) until light
signal/tone is emitted
"), the knee joint is not secured by the
").
17B203=* E-MAG Active