Idmed ToFscan, Руководство пользователя

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User Manual ToFscan 16
The number of responses detected (TOF count) is displayed as an X/4 ratio (X being the
number of muscle response detected).
When ToFscan detects artefact movements or electric noises in the measurement process, a
symbol will be displayed in front of results. This symbol informs users about a possible non
reliable measurements/results.
The waiting time required by the ToFscan between two “TOF” stimulations is 12 seconds.
Note:
The user should validate the results readout by pressing the selection wheel in order to
perform other stimulations. The percentage calculations are limited to 100% so that values which are
not pertinent will not be displayed.
“AUTO TOF” sub-menu
The “TOF AUTO” mode allows you to program TOF stimuli at regular intervals. The available
intervals are every 15s., 30s., 1min., 2min., 5min. and 15min.
After selecting the stimulation interval, the user starts the stimulation cycle by pressing
and holding the selection wheel (for at least 2 seconds). The first stimulation is delivered 4 seconds
after the selection wheel has been pressed.
To stop a programme, press the selection wheel; the ToFscan then returns to the “AUTO
TOF” menu.
The results displayed are the same as in the “TOF” menu.
The stimulation interval can be changed after starting TOF AUTO mode.
The frequency of intervals can be changed by rotating and pressing the knob without holding it
down.
“REFERENCE” or “REF” sub-menu
The reference mode enables the user to store the patient’s response to a TOF electrical
stimulation when the patient is anaesthetised but not under the effect of neuromuscular blocking
agent. This value can help the user to evaluate the recovery of neuromuscular function and the
efficiency of agent depolarizing neuromuscular blocking.
The ToFscan delivers the TOF stimulation in order to calculate the average amplitude of
the four muscle responses; this value will be recorded as Tref. This average amplitude will be used to
calculate T4/Tref and will be displayed for subsequent TOF stimulations.
The waiting time between two “REFERENCE” stimulations is 12 seconds.
Reference value can be erased by holding down the wheel button in the sub-menu “Reference”.
Example of a screen for deleting a reference:
Note:
The reference value is used only to calculate T4/Tref during a TOF electrical stimulation and only if
the ToFscan is connected to a cable with an integrated sensor (accelerometer sensor).
Like all electrical stimulations, the stimulation used for the reference must only be
performed on anaesthetised patients. Stimulations can be very painful for non-anaesthetised
patients.
After the results are displayed, the selection wheel must be pressed to return to the
selection menu.