Lepu Medical AIView 12V, Operator'S Manual

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A-9
rejection
capability 350ms, duration of 180ms and amplitude lower than
1.2mV, the heart rate calculation is not affected.
Minute heart rate
averaging
algorithm The lastest 8 RR intervals are all in a certain range of
average heart beats.
Display refresh rate: 1 beat/s
Response time to
heart rate
changes Meets the requirements of IEC 60601-2-27: Clause
201.7.9.2.9.101 b) 5).
From 80 bpm to 120 bpm: less than 8 s
From 80 bpm to 40 bpm: less than 8 s
Accuracy of heart
rate meter and its
response to
irregular rhythm In compliance with the requirements in Clause
201.7.9.2.9.101 b) 4) of IEC 60601-2-27, the heart rate
after 20 seconds of stabilization is displayed as
follows:
Ventricular bigeminy (waveform A1): 80 bpm
Slow alternating ventricular bigeminy (waveform A2):
60 bpm
Rapid alternating ventricular bigeminy (waveform A3):
120 bpm
Bidirectional systoles (waveform A4): 90 bpm
Time to alarm for
tachycardia ＜
11s (applicable to all clauses of IEC 60601-2-27)
ST Segment Analysis
Measurement
range -2.0 mV~+2.0 mV
Measurement
accuracy -0.8 mV~0.8 mV: ±0.02 mV or ±10%, whichever is
greater.
Beyond this range: not defined.
Resolution 0.01 mV
ST alarm high
limit
(low limit + 0.2 mV)
～
2.0 mV
ST alarm low limit
-2.0 mV
～
(high limit - 0.2 mV)
QT/QTc Analysis
Measurement
range
QT: 200 ms
～
800ms
QTc: 200 ms
～
800ms
QT-HR: 15 to 150 bpm for adult, 15 to 180 bpm for