Rectilinear Biphasic Waveform Characteristics - ZOLL Aed Plus Administrator's Manual

Rectilinear Biphasic Waveform Characteristics

The following table shows the Rectilinear Biphasic waveform's characteristics when discharged into
25 ohm, 50 ohm, 100 ohm, and 125 ohm loads at a maximum energy setting of 200 Joules.
Table 9: Biphasic Waveform
First Phase
Maximum Initial
Current
First Phase
Average Current
First Phase Duration
Interphase duration
between first and second
phases
Second Phase Maximum
Initial Current
Second Phase Average
Current
Second Phase Duration
The efficacy of ZOLL's Rectilinear Biphasic Waveform has been clinically verified during a
Ventricular Fibrillation (VF) and Ventricular Tachycardia (VT) defibrillation study. This study (which
was conducted using ZOLL M Series defibrillators) and the findings are described below. Since the
ZOLL AED Plus's rectilinear biphasic waveform employs the same first and second phase timing,
similar first and second phase currents/voltages and essentially the same mechanisms for controlling
defibrillation waveshape, the ZOLL M Series and ZOLL AED Plus defibrillation waveforms are
considered substantially equivalent.
Discharged Discharged
into 25 ohm into 50 ohm
load load
32 A 26 A
28 A 22A
6 ms 6 ms
150 µ sec 150
33 A 19 A
21 A 14 A
4 ms 4 ms
ZOLL AED PLUS Administrator's Guide
Discharged
into 100 ohm
load
21 A
16 A
6 ms
µ sec 150 µ sec
12 A
11 A
4 ms
Discharged
into 125 ohm
load
17 A
13 A
6 ms
150 µ sec
11 A
10 A
4 ms
33