Fukuda Denshi Dynascope 8000 Series, Руководство по обслуживанию

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Safety Precautions for Using the Equipment
Precautions about the ECG Monitoring

If any electrodes get detached from the patient after being connected to the lead cable and patient monitor, pay
attention that the metal part of the electrode does not get in touch with any metal parts of the bed or any
conductive parts. Also, the operator should not touch any conductive parts with bare hands. Otherwise, it may
cause electric shock to the patient and/or operator due to excessive leakage current.

The indication for continuous use of the electrode is about one day.

Replace the electrode if the skin contact gets loosen due to perspiration, etc.

When an electrode is attached to the same location for a long period, some patients may develop skin irritation.
Check the patient's skin condition periodically and change the electrode site as required.

For stable arrhythmia detection and ECG monitoring, verify proper electrode placement, lead, waveform size,
and filter mode selection. If not properly selected, it may cause erroneous detection.

The threshold level for arrhythmia detection changes with ECG waveform size. Set a proper waveform size for
monitoring.

When the ECG waveform size is x1/4, x1/2, or x1, the arrhythmia detection level is 250
μ
V.

When the ECG waveform size is x2 or x4, the arrhythmia detection level is 150
μ
V.

The leads for arrhythmia detection, central monitor display, printing are fixed as ECG1 and ECG2. Set the most
appropriate leads with high QRS for ECG1 and ECG2, especially for arrhythmia detection.If the QRS
amplitude for the set lead is low, it may cause erroneous arrhythmia detection.

In ESIS Mode, artifacts such as electrosurgical noise or EMG can be largely reduced, but QRS amplitude
attenuation, waveform distortion, or ST segment change may occur compared with other filter modes.

The ESIS mode cannot completely reduce the electrical noise, and may erroneously detect the pacemaker
spike. This mode should be selected only when a high frequency noise largely affects the HR measurement.

There are some cases when the pacemaker pulse cannot be detected depending on the pacemaker type, pulse
voltage, pulse width, electrode lead type (unipolar, bipolar), or electrode placement which causes the
pacemaker pulse amplitude to decrease, and disables the pacemaker pulse detection.

If signals similar to a pacemaker pulse are present, such as electric blanket noise or excessive AC frequency
noise, these may be erroneously detected and displayed as a pacemaker pulse.

When a spontaneous QRS and pacemaker pulse overlap (ex. fusion beat, etc.), QRS detection cannot be
performed properly. In this case, the heart rate is degraded.

If a pacemaker pulse is continuously detected due to AC frequency interference, QRS detection will be
suspended and the heart rate will be reduced. Arrhythmia will not be detected either.
Precautions about the ST Measurement

The ST algorithm has been tested for accuracy of the ST segment data. The significance of the ST segment
changes need to be determined by a clinician.

For the lead which the electrode is detached, the reference waveform setup cannot be performed. Check if the
electrode is appropriately attached, and perform the setup again.
Precautions about the SpO
2
Monitoring

Use only the sensor/relay cable specified by Fukuda Denshi. Otherwise, it may cause measurement error.If
the sensor is damaged, stop using it.

If the nail is rough, dirty, or manicured, accurate measurement will not be possible. Change the finger or clean
the nail before attaching the sensor.

If irritation such as skin reddening appears with the sensor use, change the attachment site or stop using the
sensor.

Do not apply the sensor too tight. At the same time, check the blood flow constantly so that congestion is not
generated at the peripheral site.

Do not use tape to attach the sensor.

Even attachment for a short duration may inhibit the blood flow and generate compression necrosis or burn
CAUTION
CAUTION
CAUTION