SEMI-AUTOMATIC
36
10.7 Defibrillator
Biphasic Truncated Exponential (BTE)
The waveform parameters are regulated automatically depending on the patient’s autonomy
In the graph on the left, t
pos
represents the duration of phase 1 (ms), t
neg
represents the
duration of phase 2 (ms), t
int
is the delay between the phases, U
max
indicates the peak voltage,
t
imp
is the end voltage. In order to compensate for variations in patient impedance, the
duration of each phase of the waveform is regulated dynamically based on the shock delivered,
as indicated in the following paragraph.
Max Energy delivered (Adults)
Incremental: First: 150J – Subsequent: 200J
Max Energy delivered (Children)
Fixed: First and subsequent: 50J
Automatic through a patient analysis system
Charge time
(from shock warning)
≤ 9 sec (in accordance with IEC60601-2-4
150J with new, fully charged battery SMT-C14031
≤ 12 sec (in accordance with IEC60601-2-4
200J with new, fully charged battery SMT-C14031
Charge time
(from the start of the analysis)
≤ 13 sec (in accordance with IEC60601-2-4
150J with new, fully charged battery SMT-C14031
≤ 16 sec (in accordance with IEC60601-2-4
200J with new, fully charged battery SMT-C14031
Indication of full charge
• The SHOCK button is blinking
• Voice message “Push the blinking red button”
The shock is delivered by pushing the “SHOCK” button
• If the patient analysis system considers the rhythm to be no longer
defibrillable, or
• If the operator has not pushed the SHOCK button within 15 seconds from
completion of the charge, or
• If the defibrillation pads have been removed from the patient or
disconnected from the unit.
• If the operator pushes the OFF/DEACTIVATION button, at any time, to
deactivate or switch off the device.
Through the defibrillation pads (Lead II)
Through the Type BF defibrillation pads