20 | Ottobock
13E205
Impulse switching in case of one-electrode control
(Prog. 5)
Contraction of one muscle - short and quick.
TIP
e.g. balling a ficticious fist or spreading ficticious fingers. Avoid cramps!
Myo Ro tronic
Switching
Hand control
6SwitchingModes
Signal sound
Signal sound + vibration
Program 1:
Four-channel control
Control with 2 electrodes
Opening and closing:
By slowly beginning muscle contraction via the electrode: It takes more than
80 ms for the electrode signal to reach the respective upper threshold after exceeding the ON-
threshold. The prosthetic component opens or closes until the electrode signal subsides.
Pronation and supination:
By quickly and strongly beginning muscle contraction via the electrode:
The electrode signal reaches the respective upper threshold within 80 ms after exceeding the
ON-threshold.
Rotation can be controlled both digitally and proportionally (see Section 5.1.2). The optional 9X24
Switch can be used to turn off pronation and supination.
1. As soon as
the elec-
trode signal
exceeds the
ON-threshold,
the timer for
recognition
of switchover
starts run-
ning.
2. If the electrode signal exceeds the up-
per threshold (variable) within 80 ms after
reaching the ON-threshold (see 1.), swi-
tchover to rotation will take place.
The optimal level for the upper threshold is
determined with the aid of MyoSoft/ PAULA
and can be read on the righthand scale.
The respective values for the two electrode
signals are then transferred to the My-
oRotronic, scale A and B, using 757T13
MyoSelect.
The final settings of the upper threshold
should always be checked on the pros-
thesis.
