Why defibrillator pads expire – and how to stay prepared

Automated External Defibrillators (AEDs) are vital tools used in cases of sudden cardiac arrest. When it comes to sudden cardiac arrest incidents, time is of the essence, which is why defibrillators are made so widely available and designed to be used by untrained bystanders. But did you know that the effectiveness of an AED depends on the condition of the defibrillator pads?

Defibrillator pads come with an expiration date so it’s crucial to understand why they expire and how you can ensure your AED is always ready for use in an emergency.

What do defibrillator pads do and why are they essential?

Defibrillator pads (or electrode pads) are a critical component of any AED. Electrode pads not only deliver the shock to the patient from the defibrillator, but they also contain sensors to detect electrical activity in the heart to assess whether a shock is needed. It will then transmit the shock if it determines that it’s necessary. In addition, the adhesive gel on the pads ensures they stick firmly to the patient’s skin, allowing the electrical current to pass through effectively.

Without functioning defibrillator pads, an AED is unable to detect heart rhythms or deliver a life-saving shock. As a result, maintaining your pads and ensuring they haven’t passed their expiry data will ensure the device performs as it should in a cardiac emergency.

Why do defibrillator pads expire?

Defibrillator pads are usually in a sealed packet and, for most defibrillators, are already attached ready for use. Once they have been opened and used, they must be disposed of and replaced. The main reason is that once the pads have been used the adhesive gel loses its stickiness.

However, there are several other factors that can contribute to the expiration of defibrillator pads, even if they haven’t already been used. Most defibrillator pads have a lifespan of up to two years. The following factors can contribute to their expiry:

Gel adhesive

 The pads use a conductive gel to ensure strong adhesion to the skin, allowing the defibrillator to deliver an effective shock. Over time, the gel can degrade or dry out which reduces its ability to adhere properly and affect’s it’s performance.

Material degradation

The materials used in the pads, particularly the conductive elements and protective backing, can degrade over time, leading to reduced efficiency or potential malfunctions when the defibrillator is in use.

Regulations and compliance

Medical technology advances all the time and AEDs, and their components are regularly updated so they adhere to the latest standards and regulations. Expiration dates ensure that old pads are replaced with newer versions and mean that your defibrillator stays in line with the most up-to-date regulations.

The risks of using expired AED pads Using defibrillator pads that have expired can pose a number of risks including:

• ·      Reduced effectiveness in delivering a shock to the patient
• ·      Pads that do not stick properly, leading to potential interruptions during treatment
• ·      An increased risk of failure when responding to a cardiac arrest emergency

Expired pads could mean the difference between life and death in an emergency.

How can you make sure your defibrillator is prepared?

To ensure your defibrillator is always in working order, we recommend regular maintenance and checks so you can be confident that it will work effectively when needed.

Regularly check pad expiration dates

Keep track of when your AED pads and batteries are due for replacement. Most defibrillators have a built-in reminder system, but manual checks should also be part of your routine.

Stock spare pads

Having a spare set of pads with your defibrillator alongside the pads that are either attached or ready to be used means you can be confident you have pads that will work in an emergency.

We stock a wide range of defibrillator replacement pads so please browse our range if you’re looking for spare pads.

Schedule routine inspections

Assign someone in your workplace, school or community centre to inspect AEDs regularly. Ensure they check expiry dates, battery levels and overall device condition.

If you want to be sure that your defibrillator is checked regularly you can book an annual maintenance check or 6-8 weekly guardian check, so [MW1] you have peace of mind that the defibrillator is going to work when needed.

Replacement reminders

Some defibrillator suppliers including Defib4Life offer email reminders for replacement parts, ensuring you know exactly when your pads need replacing.

Make sure you’re ready with Defib4Life

At Defib4Life, our mission is to make sure that life-saving defibrillators are available when they are needed most – whether that’s in schools, sports facilities, workplaces, or public spaces. That’s why we offer a range of defibrillator replacement pads and accessories to keep your AED in full working condition. Check the expiration dates on your pads regularly and if your pads need replacing, browse our selection so your defibrillator is ready in an emergency.