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What is a defibrillator and what is it for?

Importance, fundamentals, characteristics and sequence of use.

What are and what are AED defibrillators?

The automatic external defibrillator (AED) or semi-automatic defibrillator (DESA) is designed for those cases of cardiac arrest that occur outside the hospital centers, since its simplicity of use means that non-medical personnel can safely and efficiently handle the instructions of use that the defibrillator indicates in each step.

The DEA will guide us and help us in situations of vital emergency. When we place it on the victim, it assesses the activity of the heart and will clearly indicate what actions we should take. These are simple, direct and orienting orders, helping the first participants to perform cardiopulmonary resuscitation successfully.

Early Defibrillation Basics

Ventricular fibrillation (VF) is the most frequent initial rhythm of cardio-respiratory arrest (CRP) in adults (up to 90%). The only effective treatment to reverse ventricular fibrillation is defibrillation. Ventricular fibrillation progresses to asystole in a very few minutes.

Ventricular fibrillation reverses up to 90% if defibrillation is performed in the first minute, decreasing its effectiveness by 10% for each minute of delay in its execution. After 12 minutes survival is reduced to a rate ranging from 2% to 5%.

Characteristics of an automatic external defibrillator (AED) 

Easy-to-use external electromedical defibrillation device, which can be used without training according to the instructions dictated by the defibrillator device, although a minimum training course is recommended.
Automated defibrillation devices with patient analysis, where the device will perform the electric discharge only if necessary.
Defibrillator for pediatric, adult and elderly use with voice guidance during CPR, the device stores the data collected during resuscitation, a reliable and safe device with its pertinent maintenance, economical defibrillation.

How to use a defibrillator when there is a cardiac arrest

video tutorial on the use of a DEA / DESA team

An external defibrillator is an electro-medical device designed to analyze the heart rate, being able to identify deadly arrhythmias and administer, with the intervention of a person, an electric shock in order to restore the heart rate with high levels of safety.

Formulas to obtain an AED / DESA

FREE defibrillator with solidarity bracelets

Business and citizen solidarity translates into more cardioprotected spaces.

Defibrillator Renting the most used option

Renting defibrillators with installation, use and training costs included in a comfortable fee.

Hire defibrillator short periods

Rent a defibrillator for your event or season, defibrillators for a short period of time.

Defibrillator sale from leading manufacturers

We sell external defibrillators from the main manufacturers in the market, sale DEA & DESA

Automatic external defibrillation

Everything against sudden death

Renting defibrillators for months is the most used modality to protect spaces for a medium period of time.


Rental of defibrillators
rental cardioprotection from € 29 / month

Modality to rent a defibrillator for months and cardioprotect spaces with a comfortable fee.  

This type of rental includes the AED device, civil insurance, battery, electrode patches and everything necessary or required. 

Request more information here >>


The Renting of defibrillators is the most used modality for the cardioprotection of zones, public or private spaces.


Defibrillator rental from € 29 / month
maintenance and training included

Renting defibrillators with a comprehensive maintenance service, a renting that includes the defibrillator and staff training, with all spare parts included, includes civil insurance, a 112 emergency phone call kit, display case / totem, in a comfortable fee monthly. Rentings with periods of 24, 48 or 60 months. 

Request more information here >>

All Devices Included

Spare parts, batteries, adult / child patches, firmware updates, replacement defibrillator, expandable option as cardioprotected space, certificate.

Approved Installation + Signage

Approved installation that includes the showcase that protect the defibrillator and the signage for its location, all according to the regulations.

Integral Maintenance Defibrillator

Control consumable expiration, change of patches and battery, post-use procedures, courtesy equipment for repair, software updates.

Buy portable defibrillators
Direct sale of equipment for cardioprotection

If you need to buy a next-generation external defibrillator, a portable defibrillator that works in automatic or semi-automatic mode and that is approved for use in all the autonomous communities of Spain, we recommend Zoll Medical defibrillators for their technical characteristics, easy handling and performance .

Sale of defibrillators Zoll AED Plus, an external defibrillator of last generation with all the technological advances, buy an DEA / DESA defibrillation device.

Sale of Zoll AED 3 defibrillator, a next-generation defibrillator with all the technological advances, buy a DEA / DESA defibrillator device.

How to use a defibrillator Zoll AED Plus
demonstration about the use of automatic external defibrillators

View Video

Accessories catalog
Spare parts for defibrillators DEA DESA

We have all the accessories and original spare parts of all the manufacturers of external defibrillators on the market, if you do not find the spare part for your defibrillator here, contact us. We have accessories for defibrillators in outdoor and indoor spaces, everything you need for a cardioprotected space.

Access our online store
Online purchase of defibrillators and spare parts

Defibrillation equipment technical service
Repairs, revision, spare parts and accessories

We manage the repair of automatic and semi-automatic external defibrillators of all brands and models through the authorized technical service. Defibrillator RMA service.

Defibrillation Equipment Services

Technical service
Is your defibrillator not working? We take care of solving the problem.
We have accessories for cardioprotected spaces, suitcases, stretchers, first aid kit.
We carry out the maintenance of all our defibrillators with our own technicians.
Spare parts
We have all the spare parts of any brand / model of defibrillator.
We carry out the installation of your defibrillator or cardioprotected space, certification.
We mark the location of the defibrillator for easy location in an emergency.

We have automatic portable defibrillation devices of 4ª generation with the help of CPR, DEA's that increase the victim's chances of survival.

Training for the use of defibrillators
Classroom Courses & Online Courses

Courses on basic life support and external defibrillator, certified training and reimbursable up to 100%, face-to-face courses to learn how to use external defibrillators and CPR, online courses to use defibrillator & BLS to train when and where you want. 

Installation of external defibrillators, maintenance, spare parts, repairs, training and use of the defibrillator, registration in Autonomous Communities.

Avda.de la Constitución 29 
28821 Coslada (Madrid)
Telephone: + 34 911 250 500
E-mail: salvavidas@salvavidas.com

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