Users Manual Part 1

70
Nerve Integrity Monitor
Technical specications
Physical dimensions - console
Size: 41 cm W x 45 cm D
42.5 cm H (Screen Open)
20.5 cm H (Screen Down for storage)
Weight: 10.7 Kg
Physical dimensions - patient interface
Size: 6.5 cm W x 7.5 cm H x 21.5 cm D
Weight: .55Kg
Physical dimensions - cart (NIM4CC01)
Size: 53 cm W x 101 cm H x 61 cm DP
Weight: 45 kg
Capacities: Drawer Max. Load - 4.5 kg
Shelf Max. Load - 9.0 kg
Cart Total Max. Load - 79.5 kg
Operational environment - console, console back-up battery, patient interface with internal battery
Operating Temperature range: 10 to 33º C (Operating)
Humidity: 30-70% RH non-condensing
Atmospheric Pressure range: 700hPa to 1060hPa
Transport and storage environment - console, console back-up battery, patient interface with internal battery
Shock and Vibration: Veried to Standard ISTA 2A
Ambient Temperature range: -20°C to + 50° C
Relative Humidity range: 10% to 100%, including condensation
Atmospheric Pressure range: 500hPa to 1060hPa
Amplier
Channels - 1 to 4: Individually and simultaneously selectable
Input Sensitivities: 5 – 10,000 μV peak-to-peak AC Coupled ± 5% at 10 mV to ± 30% at 100 mV peak-to-
peak AC Coupled
Sensitivity Selection: Automatically zeroed
Bandpass: 15Hz - 1.85kHz (± 3db @ 500Hz) EMG Display
200Hz - 1.0kHz (-6, +3db @ 500Hz) Audio EMG Speaker
Input Noise: 3-14µV p-p, < 5µV RMS @ DC - 2 KHz, inputs shorted
Input Impedance: > 10Meg Ohm
DC oset Rejection: ± 0.90 V DC Rejection
Common Mode Rejection: >80dB @ 60Hz, balanced inputs, >66dB @ 60Hz, 1K Ohm imbalance
Channel Enable/Disable Controls: Dedicated function touch pads for independent channel enable/disable.
Event Threshold Control and Display: Adjustable Graduated Touch Screen with Voltage threshold displayed.
Patient Isolation Wired: 1,000 Vrms 60Hz < 100µA
Impedance measurement
Control: Automatic CHECK ELECTRODE feature.
Measuring Signal: 6 µA or 24 µA peak-to-peak, 7.8 Hz Square wave
Measurement Range: Electrodes:
0K to 2K Ohm ± 500 Ohm
>2K-175K Ohm ± 20%
Ground and Stim Returns < 25K.
Artifact detection and rejection
Stimulus Artifact: Synchronized and adjustable muting and warning.
Bipolar Electrocautery Rejection: Continuous Monitoring During Bipolar Cautery < 40 watts
Monopolar Electrocautery (ESU) Interference: Automatic detection and muting in wired or wirefree modes.
Muting Detector Input ESU Sensitivity: Monopolar ESU Cut / Coag
Contact 5 - 100 Watts
Air-Discharge 10-100 Watts
Muting Console Input Sensitivity: Muting (0.6 - 2.0 Volts Vrms)
Non-Muting (<0.3Volts Vrms)
Muting Detector Input ESU Immunity: ESU < 100 Watts Cut / Coag or
(<3.0Vrms 100-800KHz Sq. Wave)
Electrode Lead O: Automatic detection with Channel O Mutiing and Warning message.
Display / touch screen
Type: High contrast, digital, graphic color, visible in complete darkness.
Resolution: Display Full HD - 1920H x 1080W pixels
Dedicated Function Event Touch Screen Controls: Touch Panel - Capacitive Multi and Glove touch capatible 4095H x 4095W
Vertical Display: 20, 50, 100, 200, 500, 1,000, 2,000 5K, 10K, 20K, 50K, and 100K μV display modes.
Event Capture: Enable/disable capture mode indicator on touch screen.
Time Scale: 25ms, 50ms, 100ms or 20s display modes.
Patient Interface
Color Coded Channel Patient Connections: “Touchproof safety connection protected pin 1.5 mm per specication: DIN 42 802”
Internal Fuse: Electronic limiting protection circuit and standard fuses. See Stimulator 1 and 2
“Internal Fuse”.
Stimulator 1 and 2
Stimulus Type Constant: Constant Current
FCC use only, not for Medical use