Defibtech DDU-2450 Series User Manual - Manual (Page 6)

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1 Introduction To The DDU-2000 Series AED
This User Manual provides information to guide trained operators in the use and maintenance of the Defibtech
DDU-2000 Series Semi-Automatic External Defibrillator (AED) and its accessories.
This chapter includes intended use, an overview of the AED, a discussion of when it should and should not be used,
and information on operator training.
1.1 Overview
The DDU-2000 Series AED is a Semi-Automatic External Defibrillator that is designed to be easy to use, portable,
and battery powered. It has two primary user controls: the ON/OFF and SHOCK buttons, along with three softkey
buttons for advanced mode features. Voice prompts, text prompts, and a display screen with visual prompts provide
a simple interface for the operator. The DDU-2000 Series AED is capable of recording event information, including
ECG, audio data (optional), and SHOCK/NO-SHOCK recommendations.
The DDU-2000 Series of AEDs includes the following models:
• DDU-2300 — Operates in AED Mode.
• DDU-2450 — Operates in AED Mode; includes patient ECG display and ECG monitor mode using an
optional ECG Monitoring Adapter.
• DDU-2400 — Operates in AED Mode or Manual Mode; includes patient ECG display and ECG monitor mode
using an optional ECG Monitoring Adapter.
In AED Mode, when connected to a patient who is unconscious and not breathing, the DDU-2000 Series AED
performs the following tasks:
• Prompts the operator, through audio, text, and video prompts, to prepare the patient for treatment.
• Automatically analyzes the patient’s ECG.
• Determines whether a shockable rhythm is present.
• Charges the defibrillation capacitor and arms the SHOCK button if the AED detects a shockable rhythm.
• Prompts the operator to press the SHOCK button when the device is ready and a shock is recommended.
• Delivers a shock once the device has determined a shock is required and the SHOCK button has been pressed.
• Provides instructions to perform CPR.
• Repeats the process if additional shocks are required.
• Allows user to select between Video display or ECG display (DDU-2400 and DDU-2450 only).
In ECG Monitor Mode (DDU-2400 and DDU-2450 only), the AED allows display of the patient ECG using an optional
3-wire (LEAD II) ECG adapter cable. ECG Monitor Mode provides a non-diagnostic display of the heart rhythm of a
responsive or breathing patient for attended patient monitoring. While connected to the ECG adapter cable, the AED
disables its shock capability.
Manual Mode (DDU-2400 only) allows the user to override the automatic features of the AED. Manual Mode provides
for operator selected energy levels along with charge, shock, and disarm features.
In AED Mode, the DDU-2000 Series AED will NOT shock a patient automatically; it will only advise the operator.
The SHOCK button is enabled only when a shockable rhythm is detected and the device is charged and ready to
shock. Charging occurs automatically when the device detects a shockable rhythm. The operator must press the
SHOCK button to initiate defibrillation. In Manual Mode, the operator is responsible for making the shock/no-
shock decision, initiating charging and delivering the shock.
The DDU-2000 Series AED uses two self-adhesive defibrillation pads (also known as electrode pads, electrodes, or
pads) to monitor ECG signals and, if necessary, to deliver defibrillation energy to the patient. These pads are provided
in a single-use, disposable package. The DDU-2000 Series AED determines proper pad-to-patient contact by measuring
the impedance between the two pads (impedance varies with the electrical resistance of the patient’s body).
The DDU-2000 Series AED user interface is clear and concise. It has two primary push-button controls and a display
screen. Easily understandable voice messages and text and video prompts guide the operator through the use of the
unit. The device communicates the status of the AED and of the patient to the operator. In Manual Mode, additional
functions are provided through the three softkeys to the right of the display.
1. Intr
oduction
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