
LIFEPAK CR Plus/EXPRESS Defibrillator
Functional Description
The defibrillator is a portable, battery-powered therapeutic device. It consists of
the following components:
■
Two PCBs — Two printed circuit boards control defibrillator functions,
including ECG signal processing, mode control, rhythm and motion analysis,
energy storage capacitor charging, impedance sensing, voice prompting,
generate biphasic defibrillation waveform, and record patient events.
■
Inductive Resistor — A resistor that conditions the energy storage capacitor
output.
■
Energy Storage Capacitor — A metallized film capacitor used for energy
storage.
■
Patient Connector — A connection used for connecting patient electrodes
and unit testing.
■
Function keys —
LID RELEASE/ON-OFF
button and
SHOCK
button
(semiautomatic units only).
■
Readiness Display — A four-field LCD, including
OK
,
BATTERY
,
ATTENTION
, and
SERVICE
indicators.
■
Speaker — Emits voice prompts and tones.
■
IrDA Connector — Infrared port enabling the transfer of patient records and
setup data.
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