Users Manual Part 1

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Nerve Integrity Monitor
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1 Display settings.
2 Display Transient Events.
3 Auto Threshold.
4 Single Channel Mode (in Thyroid procedures only).
5 Sequence Display.
6 Latency.
7 Additional Features:
• Enable Quick Tags.
• Show Measure Button.
• Show Freeze Button.
• Enable NerveTrend.
8 Snapshot Default Actions:
• Comment.
• Print.
• Save To File (only enabled if the system detecs a mounted,
approved USB drive).
9 Display Advanced Settings.
10 Waveform Filters
• Artifact Filter
• Low-Pass Filter
• High-Pass Filter
11 Reject Stim Pulse Artifacts.
12 Rejection Period.
13 Research Settings:
• Display Raw EMG as Transients.
• Record Waveform Data.
When you activate the Measure button (by enabling it in the display settings), the on screen cursor (green) shows the amplitude (μV)
and time (mS) at the cursor location.
• Time is measured from zero (0) not from Stimulus/Rejection Period.
• Amplitude is measured from the channels zero (0) with a minus (-) sign for negative numbers and no minus sign for positive
numbers.
If the users selects Display Transient Events, the system enables transient events. With Event Capture disabled, free running EMG
signals scroll across the screen at real-time. When an Event occurs, the signal persists as a transient event on the screen for ve
seconds before fading away.
If you selected Auto Threshold on the Events panel and the event tones are continuous for 10 seconds:
• Auto Threshold automatically calculates a new Event Threshold (to a maximum of 400μV).
• You will hear all activity less than the new Event Threshold as raw EMG.
• EMG activity greater than the new Event Threshold or greater than 400μV generates Event Tones.
• The Event Threshold returns to the original value after 10 – 20 seconds of no, or decreased, event activity.
• Single channel mode is only available in Thyroid procedures and is enabled by default. When single channel mode is on,
the system presents the channel with the best amplitude. For more on how single channel mode aects trending, see the
“Nervassure” topic.
• In the Sequence Display panel, the system selects the Largest Overall option by default. The following happens:
— If Last and Event Capture are selected, the most recent event appears until replaced with a new or more recent event.
— If Largest Overall and Event Capture are selected, and multiple events occur over a period of time, then the largest event from
the series of events appear as Largest x of x (example 3 of 5).
— This remains on screen until replaced with the next event or next largest event from a series of events.
On the Latency panel, you can do the following:
FCC use only, not for Medical use