mA
0,00
1,00
2,00
3,00
4,00
5,00
6,00
7,00
0
10
20
30
40
50
60
mA
MultiStim SWITCH
SETUP-button
Individual programming options differing from the manufacturer’s default
settings can be defined by actuation of the SETUP-button.
- Level 1: Volume of the warning- and monitoring sounds
- Level 2: Stimulation frequency, pulse width and current intensity in
the “Cannula-mode”
- Level 3: Stimulation frequency, pulse width and current intensity in
the “Catheter-mode”
- Level 4: Threshold value, at which the acoustic signal for the patient
resistance will change
- Level 5: Activation of the Choquet/Feugeas table; “Cannula-mode”
Individual definition of a constant pulse width
In the manual mode, stored as manufacturer’s default
setting, the pulse width can be defined by the user. It will
remain constant during the complete application. The
change of the current values is effected manually in fixed,
predefined steps, whereas these steps will be correspon-
dingly large at great distances to the nerve, and will
become smaller as the cannula approaches the nerve.
(see accompanying table)
Automatic adjustment of the current intensity
and impulse bandwidth according to the Choquet/
Feugeas table
In the automatic mode, the pulse width depends on the
intensity of the current, and has, on the basis of the
Choquet/Feugeas table, been stored permanently in the
nerve stimulator. The intention of this method is to
achieve a fast, efficient approach to the nerve, on the
basis of a constant charge. The device will correspondi-
ngly function with a great pulse width at the beginning,
which will be reduced according to the intensity of the
current in the course of approaching the target nerve.
This option ensures, that the anaesthetist can approach
the nerve in constant steps under continued muscular
response, and can therefore concentrate his full attention
completely on the puncture.
Constant
pulse width
Impulse bandwidth accor-
ding to Choquet/Feugeas
Clicks
Clicks
Stimulation pulse width
Stimulation pulse width
