Precordial Lead Placement; Defibrillation; Using A High-Frequency Surgical Knife - Innomed Medical HS112 C-1 User Manual

7.1.2. Precordial lead placement

The device is equipped with a mechanism which checks electrode contact, and warns the user
in case any of the electrodes are not properly attached.
A sequence of characters representing the 12 channels appears on the right side of the display
above the filter icons:
These correspond to the right hand – left hand – left leg – N point (right leg), and the 6 chest
leads represented by the numbers 1–6. The character representing the lead which is not
connected properly turns red and indicates an error by blinking and beep in the rhythm of the
heartbeat. For technical reasons, the device does not indicate the status of the N electrode,
so the "N" character is always coloured yellow.
If the ECG is noisy — make sure that the ECG cable does not cross any mains cables. If need
be, disconnect the mains power supply cable and operate the device on battery, or turn the
mains noise filter

7.2. Defibrillation

The device is defibrillator protected when using an approved ECG cable, but it is
recommended to remove the precordial electrodes before defibrillation (as they also interfere
adequately placing the defibrillator electrodes). Make sure that the unused electrodes do not
come into contact with current-carrying surfaces or persons. Please do not place the
defibrillator directly onto the electrodes! During and after defibrillation, the ECG signal may
disappear from the display for several seconds, but it will appear again afterwards.

7.3. Using a high-frequency surgical knife

The device can be used while working with a high-frequency knife if using an approved
patient cable. Observe the following: The electrodes should be as far as possible from the area
under surgery. The ECG cable should be as far as possible from cable of the knife. Turn on all
three filters! Under these circumstances, the ECG signal display and the heart rate measures
may contain errors.
R-6730-EN02-E
HS112 C-1 User Manual
V1:
V2:
V3:
V4:
V5:
V6:
RLFN1
on.
4th intercostal place at the right margin of the
sternum
4th intercostal place at the left margin of the
sternum
midway between V2 and V4
5th intercostal place at the left midclavicular line
5th intercostal place at the anterior axillary line
5th intercostal place at the midaxillary line
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