M3860A/M3861A HEARTSTART FR2+
B-2
P
h
ili
ps
Me
dic
a
l
Sy
s
tem
s
Defibrillator
EMI (Immunity)
Meets EN 60601-1-2 limits (1993), method EN 61000-4-3:1998 Level 2 (3 V/m
and 10 V/m at 26 MHz to 1 GHz).
Aircraft: Method
Meets RTCA/DO-160D:1997 Section 21 (Category M - Charging).
category
nominal specifications
category
nominal specifications
Waveform Parameters
Biphasic truncated exponential. Waveform parameters are automatically adjusted as a
function of patient defibrillation impedance. In the diagram at left, A is the duration of phase
1 and B is the duration of phase 2 of the waveform, C is the interphase delay, V
p
is the peak
voltage, and V
f
the final voltage.
The HeartStart FR2+ delivers shocks to load impedances from 25 to 180 ohms.
The duration of each phase of the waveform is dynamically adjusted based on
delivered charge, in order to compensate for patient impedance variations, as
shown below:
adult defibrillation
load
phase 1
phase 2
delivered
resistance (ohms) duration (ms)
duration (ms)
energy (J)
25
2.8
2.8
140
50
4.09
4.09
150
100
9.0
6.0
157
125
12.0
8.0
161
150
12.0
8.0
157
pediatric defibrillation
(using M3870A FR2 infant/child reduced-energy defibrillator pads)
load
phase 1
phase 2
delivered
resistance (ohms) duration (ms)
duration (ms)
energy (J)
25
4.1
4.1
35
50
5.8
3.8
48
100
7.2
4.8
55
125
7.2
4.8
54
150
9.0
6.0
55
NOTE: The values given are nominal. Because of the effect of the M3870A FR2
infant/child pads’ attenuation circuitry on the defibrillator’s impedance
compensation feature, the actual phase durations for a given load resistance on
the table above could be those of an adjacent row.
Содержание HeartStart FR2+
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