Fukuda Denshi DS-8200, Руководство по обслуживанию

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Electrosurgical Instrument
W A R N I N G
z The monitoring system contains protection against interference generated by
electrosurgical instruments. However, operating conditions, surgery site with
respect to the location of ECG electrodes, or the type of instrument used, may
cause noise on the ECG. The noise is generated at the tip of the electrical knife
and is difficult to completely eliminate because of the frequency components of
the ECG. To reduce electrosurgical interference, take the following precautions:
Location:
Locate the electrosurgical unit as far as possible from this unit and the patient
cable. This will help reduce interference on the ECG through the monitor or
cables.
Power Supply:
Connect the electrosurgical unit to a power supply that is different from that of
the monitor. This will help prevent interference through the power cable.
Electrode Placement:
The amount of interference is considerably different depending on the electrode
position and surgery site. Place the ECG electrodes as far away as possible
from the surgery site and the ground plate. Do not place electrodes in the path
between the surgery site and the ground plate. If the electrodes are placed in
this path, the amount of interference will be quite large. Position (+) and (–)
electrodes as close as possible to each other.
Ground Plate:
When using electrosurgical instruments, make sure the contact between the
patient and the ground plate is secure.
If the connection is incomplete, the patient may suffer from burn at the
electrode site.
z The stored data will not be affected. The measurement accuracy will temporarily
decrease during electrosurgery, but it will not compromise the safety of patient
and the equipment.
z When using the electrosurgery-proof type ECG relay cable, the impedance
respiration cannot be measured, and its numeric data and waveform will not be
displayed. When measuring in an environment where electrosurgery is not
performed, make sure to use the standard ECG relay cable.
MRI (Magnetic Resonance Imaging)
W A R N I N G
z Do not use this equipment in magnetic resonance imaging (MRI)
environments.
z When conducting MRI test, remove the electrodes and sensors connected to
the patient (test subject).
This equipment may be pulled towards the MRI device. Also, the local heating
caused by the induced electromotive force may cause burn injury to the patient
(subject) or performance degradation of this equipment.
For details, refer to the operation manual for the MRI testing device.
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