What is a Defibrillator?

Do you need a defibrillator? There are several options including the lifepak 1000 and others. However, before you select a particular model, it’s important to know exactly what this medical device is and its functions. Here are some important facts:

  1. A defibrillator treats the heart’s rhythm

Medical devices such as lifepak cr plus and can help to treat various life-threating conditions that impact the heart’s rhythm. Some examples include ventricular fibrillation, cardiac arrhythmia, and pulseless ventricular tachycardia. This process involves delivering an electric shock to the patient’s heart. This causes the heart muscles to de-polarize and brings back the heart’s normal conduction of electrical impulse. The defibrillator is the machine that produces the therapeutic shock to a person’s heart.

  1. There are different kinds of defibrillators

When searching for a defibrillator there are different units and batteries available including the

lifepo4 battery. Some of the examples include transvenous defibrillators, external defibrillators, and implanted defibrillators. When selecting a battery for a unit it’s important to know the type of unit the battery is for. That will help you to pick the right unit.

  1. Defibrillation was first demonstrated in 1899

The process of defibrillation was presented by Prevost and Batelli in 1899. They were physiologists working at the University of Geneva, and Switzerland. While studying animals they noticed that delivering small electric shocks to a heart could cause ventricular fibrillation. They also observed that delivering big electric charges would actually reverse the fibrillation.


  1. Defibrillation was first used on humans in 1947

The procedure was used for the first time on human patient in 1947. A professor of surgery named Claude Beck was working at Case Western Reserve University in Ohio, USA. The surgery was performed on a 14-year-old boy who was operated on for a chest defect. The device was able to restore a standard sinus rhythm in the heart of the boy.

  1. The first defibrillators provided a charge of 300V to 1000V

The first devices used “paddle” electrodes. It’s important to note that the first units had some big issues. They included the requirement of open heart surgery, big transformers, and damage to heart muscles. Another problem was that the method often wasn’t effective in reversing the patient’s ventricular fibrillation.

  1. A new method for electric shocks was developed in the 1950s

This process didn’t use paddle electrodes for open-heart surgery. The new closed-chest device was able to apply a charge over 1000V via nodes that were placed outside the chest’s cage.

Then in 1959, a new method was developed for providing a charge via resistance. This process used paddle electrodes and the charge lasted 5 milliseconds. The researchers also developed the best timing in terms of when shocks were delivered for different cases of arrhythmias.

  1. Portable defibrillators were invented in the early 1960s

These units are critical today and are a common type of equipment that ambulances are equipped with. Another big development was the implantable cardioverter-defibrillator (ICD). It was developed at Sinai Hospital located in Baltimore. A company in Pittsburg manufactured the device.