Agilent Technologies Heartstream FR2, Руководство пользователя

Страница: 67 / 87

B-2
H EARTSTREAM FR2 AED Specifications
Defibrillator
ESD
Meets EN 61000-4-2:1998 Severity Level 4.
EMI (Radiated) Meets EN 60601-1-2 limits (1993), method EN 55011:1998 Group 1 Level B.
EMI (Immunity) Meets EN 60601-1-2 limits (1993), method EN 61000-4-3:1998 Level 2.
Aircraft: Method
Meets RTCA/DO-160D:1997 Section 21 (Category M - Charging).
CATEGORY
NOMINAL SPECIFICATIONS
CATEGORY
NOMINAL SPECIFICATIONS
Waveform
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 H
EARTSTREAM
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 in the following examples:
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
Energy
150 J nominal into a 50 ohm load.
Charge Control
Controlled by Patient Analysis System for semi-automatic operation. Can be
programmed for manual initiation using advanced mode of the M3860A.
Charge Time
from “Shock Advised”
< 10 s typical, including confirming analysis. Charge time increases near end of
battery service life.
Shock-to-Shock Cycle Time
< 20 s typical, including analysis, in AED mode.