Further Information; Cleaning; Unusual Patterns; Error Signals - Organon TOF-Watch SX Manual Del Usuario

7

Further information

7.1

Cleaning

The TOF-Watch case may be cleaned with a damp cloth. Thorough cleaning of the device can
be achieved by using a cloth moistured with either 70% ethanol, methanol, a chlorohexidine
solution or 0.5% hypochlorite. Other chemical cleaners may damage the case finish and are
not recommended. Do not use abrasive cleaners as these will damage the surface.
Do not allow liquid to enter the case.
7.2

Unusual patterns

"Persisting responses" - Direct stimulation:
If the thumb is influenced by direct stimulation of the muscles under the stimulation electrodes
this can result in an apparent response which does not disappear.
To eliminate this phenomenon the hand must be fixed in such a way that the muscle
stimulation does not result in a movement of the thumb. Alternatively try changing polarity or
position of the electrodes or try to lower the stimulation current.
Note: The TOF-Watch can show twitch responses higher than 100%.
Large twitch responses may occur especially when no calibration has been performed or for a
brief period of time after administration of a depolarizing relaxant.
8

Error signals

Whenever the TOF-Watch detects an error the stimulation is suspended and the user is alerted
by two short attention beeps followed by one of the following error symbols (Internal error and
Battery empty one long beep):
Flashing acceleration transducer symbol (11)
Normal mode:
Calibration mode:
Flashing bad surface electrode connection symbol (12)
All modes:
Flashing surface electrode symbol (12)
All modes:
Flashing bad needle electrode connection symbol (13)
All modes:
Flashing needle electrode symbol (13)
All modes:
Both symbols flashing simultaneously (12) + (13)
+
All modes:
20 | TOF-Watch SX Operator manual 33.512/A
Acceleration transducer has been removed.
Unstable or too low acceleration transducer signal.
Missing or bad electrode connection.
Skin resistance too high.
Missing or bad electrode connection.
Skin resistance too high.
No stimulation cable connected to TOF-Watch