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12
Technical Data
12.4 Technical data - monitoring
Page 140
A
rt.
no.
: 0-48-
0227
Rev.:
g
DEFIGARD/PHYSIOGARD Touch 7
ECG amplifier band pass
The band pass depends on the ECG source.
12.4.2
Features of pacemaker pulse rejection
According to IEC 60601-2-27 Clause 201.12.1.101.13
Patient cable
BLW
Filter
EMG
Filter
Display
Display
“R-ECG” display
4 & 10 leads
OFF
OFF
0.05 – 42 Hz
-
0.05 – 150 Hz
4 & 10 lead
ON
ON
--
0.6 – 25 Hz
-
4 & 10 lead
ON
OFF
-
0.6 – 42 Hz
-
4 & 10 lead
OFF
ON
0.05 – 25 Hz
-
Defibrillator
-
-
1 – 25 Hz
1– 25 Hz
-
To pass distortion test according IEC 60601-2.25, Clause 201.12.4.107.1
,
use the 4
or 10 lead patient cable to set the ECG amplifier band pass to 0.05-150 Hz (see table
above).
Monitoring
Rhythm
Diagnostic
Single pacemaker pulse
• Duration 2.0ms, amplitude > 2mV and a overshoot of <0.25mV
• Duration 0.1ms, amplitude > 2mV and a overshoot of <0.8mV
followed by a QRS complex
• Duration 2ms, amplitude > 4mV
• Duration 0.1ms, amplitude > 25 mV
Pacemaker pulse followed by an
identical pulse within 150 ms
• Duration 2.0ms, amplitude between 4mV and 300mV
• Duration 0.1ms, amplitude between 25mV and 300mV
followed by a QRS complex
• Duration 2.0ms, amplitude between 4mV and 300mV
• Duration 0.1ms, amplitude between 25mV and 700mV without overshoot
• Duration 0.1ms, amplitude between 25mV and 300mV with overshoot
Pacemaker pulse followed by an
identical pulse within 250 ms
• Duration 2.0ms, amplitude between 4mV and 400mV
• Duration 0.1ms, amplitude between 25mV and 400mV
followed by a QRS complex
• Duration 2.0ms, amplitude between 4mV and 300mV
• Duration 0.1ms, amplitude between 25mV and 700mV without overshoot
• Duration 0.1ms, amplitude between 25mV and 300mV with overshoot
Note: pacemaker signals from different pacemakers vary. In the case of cardiac
arrests or some arrhythmias, pacemaker signals might still be measured, especially
signals from pacemakers generating high amplitudes ( > 20mV) or overshoot.
Pacemaker patients need to be monitored very closely.