LifePak Defibrillator Description

This section describes the general features, specifications, functions, and theory of operation of the LIFEPAK 9B defibrillator/monitor. The section is divided into three parts:

Physical Description describes general features and lists specifications

Functional Description briefly describes the function of the major assemblies

Theory of Operation provides circuit descriptions to the major component level.

The LIFEPAK 9B defibrillator/monitor, provides dc defibrillation, synchronous cardioversion, a Cathode Ray Tube (CRT) monitor screen, a strip chart recorder, 3-lead electrocardiogram (ECG) monitoring, heart rate display and alarms, and multiple energy selection,. The ECG signal is detected through patient cable electrodes, QUIK-LOOK defibrillation paddles, or FAST-PATCH disposable defibrillation electrodes.

The instrument operates on either ac power or internal battery power. The sealed lead-acid battery, accessible from the bottom of the instrument, allows temporary operation during ac power failure or disconnection. With the instrument plugged into ac power and the rear panel power switch on, the battery continually recharges, even with the front panel power off.

The front panel pushbuttons provide control for most functions. Charge and discharge pushbuttons are located on the defibrillator paddles. Four rear-panel pushbuttons control the QRS audio volume, a calibration pulse, and the real-time clock.

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