Defibrillators are electronic devices used for defibrillation of the heart chambers. They can be used to administer an electric shock to a person experiencing a heart attack. A defibrillator sends a shock to your heart slowing the heartbeat.
At times, the defibrillator sends several shocks to the heart before the heartbeat returns to normal. There are very many types of defibrillators. Some defibrillators called internal cardiac defibrillator or implanted defibrillator is implanted in the patient.
Other types of defibrillators include hand free defibrillators and the standard defibrillator. The most common type of defibrillator is an external unit. EMS and hospitals mostly use manual defibrillators. Most of the homes, businesses and schools have AEDs since they are portable and easy to use.
The defibrillators have a carrying case. They have a battery, control box, connectors, and cables. The control box holds both the battery and the circuits. Its role is to hold the power until the input energy tells the device that the heart needs a shock.
The electrodes carry the energy to the heart of the patient. The energy is passed through the cables to the connectors. The emergency technician places gel on the patient’s heart to ensure that the maximum amount of energy is conducted.
An implanted defibrillator is very similar to external defibrillators only that they are placed inside the patient’s body. The doctors have to make sure the battery of the defibrillator is working. The patient has to return after every three months for a checkup. During these checkups, the doctor is keen to check the condition of the battery.
Portable defibrillators just as their name suggests are easy to carry around. They are even easy to use even for those people who have no training. There is an automated voice which tells you what to do. All you have to do is place the pads on the patient’s chest.
The pads allow the defibrillator to monitor the heart rate. The defibrillator will instruct you to stand by away from the patient and press the shock button to deliver the electrical impulse.
Monophasic defibrillators send the electrical rhythm fast from one electrode to another in a single direction.
Biphasic defibrillators have a varying electronic pulse and completes one single cycle within 10 milliseconds. This type of defibrillators use special waveform technology and either use a biphasic abridged exponential waveform or rectilinear biphasic waveform.
Automated External Defibrillator is a portable device used to monitor the heart rate of a person. It delivers an electrical impulse to the heart if a cardiac arrest is determined. The electrical impulse is used to correct the irregular heartbeat.
Just like the monophasic defibrillators the current passes from one electrode to another. In the next phase, the current overturns and flows in the opposite direction lowering the electric threshold.
There are safety precautions built into defibrillators. The defibrillator can shock someone near the patient or it can even shock you. Before administering a shock, make sure nobody is touching the patient.