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Use only Natus approved/supplied accessories, software, or components on your system. Use of non-approved
components may adversely affect the functionality of your system.
The brakes fitted to the cart castors should be applied whenever the system is left unattended.
Be sure to lock all wheel castors on your system cart before using the system for patient testing. Locked castors
help ensure cart stability.
Take care when using the equipment simultaneously with other instruments. In the event the patient is
connected to several instruments at the same time, it is necessary to remember that the sum of the leakage
currents determined by each instrument may endanger the patient’s life.
Do NOT wrap cables around the patient’s neck.
Do not connect items (accessories and peripherals) which are not specified as part of the system. Use only the
accessories and peripherals specified by Natus as part of the system, which have been tested with the
equipment. The use of accessories and consumer goods supplied by other manufacturers or not specifically
indicated by Natus may affect the proper functionality of the equipment.
If you disconnect any cables, take care to reconnect them correctly to guard against damage to the system or
components.
Do not turn on any system power until all cables have been properly connected and verified.
Intraoperative Monitoring
Particular precaution must be considered during use of strong emission sources such as High Frequency surgical
equipment and similar so that, for example, the HF-cables are not routed on or near the device.
Always use appropriate “Bovie” (high frequency) protection devices with amplifiers or an O.R. headbox for
connecting all recording electrodes. Use the largest surface area electrode possible for the patient ground
electrode. Avoid prolonged activation of the Electrosurgery Unit (ESU). Avoid ESU activation in close proximity
of the monitoring electrodes.
When the system is used simultaneously with high frequency surgical equipment, burns may occur at the
recording or stimulating electrode site.
Take care when using the equipment at the same time with other radio frequency instruments. In the event the
equipment is used in a surgery room at the same time with a high frequency radio knife, it is necessary to hold
the knife point as far as possible from the electrodes, in order to reduce the risk of RF currents effect on the
electrodes and consequent burns to the patient.
Patient movement may occur as a result of transcranial electrical motor evoked potential stimulation.
Transcranial electrical motor evoked potential stimulation is not recommended for use on patients that meet
the following exclusion criteria:
History of head injury, stroke, seizures, epilepsy or other neurologic or psychiatric disorders.
History of cerebral aneurysm (i.e., with an intracerebral vascular clip).
Subjects with any type of implanted biomedical device (i.e., pacemaker, infusion pump).
Subjects with metal fragments or plates in their head.
