Welch Allyn Connex ECG Module, Directions For Use Manual

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Characteristic Specification
Noise suppression – DC current of 200nA max for RL
Software and alarm specifications
Characteristic Specification
Ventricular tachycardia threshold default 120 beats per minute ±3 beats per minute for 6 consecutive beats
Variable ventricular tachycardia settings 100 beats per minute to 150 beats per minute ±3 beats per minute for 6
consecutive beats
Asystole threshold default No detectable beat for
≥
4 seconds
Ventricular fibrillation threshold default A fibrillatory waveform persisting for
≥
4 seconds
Configurable mains filter ON or OFF; 50 Hz or 60 Hz
Data stream bytes output Maximum latency <100 ms
Heart rate averaging method per IEC
60601-2-27:2011 Clause 201.7.9.2.9.101 Number of consecutively detected beats:
>10: Heart rate = 60/(average of last 10 detected consecutive R-R
intervals)
>2 and <10 : Heart rate = 60/(average of the detected consecutive R-R
intervals)
Response to change in Heart rate per IEC
60601-2- 27:2011 Clause 201.7.9.2.9.101
Increasing from 80 to 120 beats/minute: 6.0 sec
Decreasing from 80 to 40 beats/minute: 16.0 sec
Protection against defibrillation
Defibrillation protection per EN60601-2-27:2011. ECG device will resume according to
the table below.
Parameter Initial report after
defibrillation
Maximum time to
recover
Note
HR value Acquiring 3 sec +5 beats Depends on patient heart
rate
ECG waveform Waveform
≤
5 sec
Respiration value Acquiring 3 sec +5 breaths Depends on patient
respiration rate
Pacer detect Pacer marker in waveform
≤
5 sec
Arrhythmia Acquiring or
Cannot analyze 5 sec +5 beats Depends on patient heart
rate
32 Specifications Welch Allyn Connex
®
Devices ECG Module