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12. Reference Signal Display
In the 2D, M, or M+2D (including Doppler) display modes, it is possible to display up to
two types of reference signals of the electrocardiogram (ECG), the phonocardiogram
(PCG), etc. This feature is optional.
WARNING:
CAUTION:
1. For protection against electric shock, confirm the
following items before use:
There are no abnormalities in the reference signal
cables.
The cable combination used is correct.
* The reference signal cable supplied with the
UJUR-A500A is used.
2. Connect the reference signal cables to the system before
setting the ECG electrodes on the patient. Do not touch
any conductive areas, including the grounding, while
ECG electrodes are attached to the patient. If an
electrode or a reference signal cable connector touches
any conductive area, including the grounding, the patient
might be electrocuted.
3. Do not allow the ECG electrode to touch the patient's
heart directly. Doing so may lead to cardiac arrest.
* The ECG unit is a type BF unit. It is not designed for
direct contact with the heart.
4. Use commercially available ECG electrodes. The user is
responsible for selection of appropriate ECG electrodes.
5. Remove the ECG electrodes from the patient before using
devices such as electric scalpels, high-frequency therapy
equipment, electrostimulators, or electric defibrillators.
In addition, when using such devices, do not let
ultrasound transducers, PCG microphones, or pulse wave
sensors to come into contact with the patient. Doing so
may result in the patient receiving a burn injury or an
electric shock.
Information derived from reference signals should be used
purely for reference. Do not use the waveforms or other
reference signal information for diagnosis or monitoring.
Note also that in patients with cardiac pacemakers or
implantable electrostimulators and in patients with arrhythmia,
the heart rate may not be calculated correctly.
No. 2B771-004EN*M
12-1
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