Structure of a Defibrillator

1. Structure of a Defibrillator

A defibrillator is composed of the following main components:

- Device Body:  The outer part of the defibrillator, typically made from hard, lightweight, and durable plastic. The body is designed to be compact, easy to hold, and portable, allowing for quick use in emergency situations.

  - Display Screen: The defibrillator is equipped with an LCD or LED display screen that shows instructions and important information. The screen provides information on heart rhythm, instructions for performing CPR, and guidance on when to deliver an electric shock if needed.

  - Control Buttons: The surface of the defibrillator has control buttons for the user to perform basic functions. These buttons include the power on/off button, the shock delivery button, and buttons to confirm instructions.

  - Electrode Pads: The defibrillator comes with two adhesive electrode pads. These pads are placed on the chest of the person experiencing cardiac arrest and generally stick to the skin automatically. The electrodes collect heart rhythm data and send signals to the device to assess the heart's condition and adjust the shock delivery process accordingly.

  - Battery: The defibrillator uses a battery or a reserve lithium battery to power the device's functions. This battery typically has a long lifespan and can be replaced when necessary.

  - Speaker:The defibrillator has an integrated speaker that delivers audio instructions and alerts. The speaker provides clear sound to guide the user through CPR steps and when to deliver a shock if needed.

2. Instructions for using a defibrillator:

With audio and visual instructions, defibrillators are designed to be simple and easy for anyone to use. Below are the steps for using the device:

- Step 1: Preparation

  The defibrillator can be found in cabinets marked with a heart and lightning bolt symbol. Before using the defibrillator, ensure the patient is not in a wet area or on a metal surface.

- Step 2: Apply the AED Electrode Pads to the Patient's chest

  Remove any electronic devices like phones or smartwatches from the patient. Expose and dry the patient’s chest. Place the AED electrode pads in the correct positions: one pad on the right side of the chest just below the collarbone and the other on the left side of the ribcage. Turn on the device and follow the instructions.

- Step 3: Wait for the device to analyze and follow the instructions

  Ensure no one touches the patient during the analysis. If the shock button with a lightning bolt symbol (heart and lightning bolt) flashes or lights up, the patient needs a shock. Press the shock button and make sure no one touches the patient during the shock delivery.

 If the shock button does not flash or light up, the patient does not need a shock. In this case, continue with CPR as guided by the device.

- Step 4: Continue until the patient revives or medical personnel arrives

  The defibrillator is an essential medical device for the emergency care and treatment of cardiac arrest patients. Understanding the structure and operating principles of the device helps ensure its effective and timely use, potentially saving many lives. Proper use of a defibrillator not only requires skill but also calmness and accuracy in every emergency situation.