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talk to the MyDefib team
If you have any questions about your MyDefib device or need support, it’s easy to get in touch. Reach out to the team via the contact form below, email us, or give us a call. There is a real person waiting to help you.
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Frequently Asked
Questions
Sudden cardiac arrest is triggered by an electrical malfunction in the heart that causes an irregular heartbeat (arrhythmia). It occurs suddenly and typically without warning. The heart’s pumping action is interrupted and it can’t effectively pump blood to the body’s organs. Shortly after, a person loses consciousness and will have no pulse. If an individual who has suffered cardiac arrest doesn’t receive treatment, death may occur within minutes.
Sudden cardiac arrest is not the same as a heart attack. A heart attack refers to a blockage of blood flow to the heart, whereas sudden cardiac arrest is when the heart stops beating suddenly due to an electrical malfunction.
No, people of all ages can have a sudden cardiac arrest. The most common cause is ventricular fibrillation, an irregular heart rhythm.
No, anyone can be affected by sudden cardiac arrest. Worldwide, sudden cardiac arrest is responsible for the deaths of more than 7 million people a year as cited by medscape.
Defibrillators can be found in public places, but the vast majority (80%) of sudden cardiac arrests happen at home. Every second matters when it comes to a life-saving intervention, and HeartHero allows critical care to be delivered before an ambulance arrives.
An automated external defibrillator (AED) such as HeartHero is used when someone is unresponsive and not breathing normally, or not breathing at all. An AED only shocks the heart if needed, so it is better to apply the pads when in doubt.
Using an AED to deliver an electrical shock is the sole way to treat sudden cardia arrest. Cardiopulmonary resuscitation (CPR) can keep oxygen being supplied to the brain, but is incapable of restoring the heart’s rhythm.
HeartHero is designed to be easy to use. It provides visual and audio prompts to guide users through the process. After the green power button is pushed, the red tab is pulled to turn on the device and release the pads. When the sticky pads are applied to the chest, HeartHero reads the person’s heart rhythm to determine if a shock is needed, before warning the user to stand back and delivering the shock. HeartHero will not shock a person if their heart does not need shocking, making it safe to use if in doubt whether a person is in sudden cardiac arrest.
Yes. HeartHero records detailed event data during a rescue, providing a comprehensive record of the AED’s operation and the patient’s heart rhythm throughout the event.
Following a rescue, authorised users can securely access the event data via the HeartHero app. Depending on the rescue, the report may include:
Continuous ECG/event recording.
Heart rhythm analysis performed by the AED.
Whether a shock was advised.
The number of shocks delivered, including shock energy and timing.
CPR prompts and key treatment events.
Treatment date, time and GPS location.
Device identification and treatment summary.
This information can be used for post-event review, incident documentation and operational debriefing. It provides healthcare professionals and organisations with a detailed record of the AED’s actions during the rescue.
Please note: The recorded data is intended for case review and professional consideration. It should not be used as the sole basis for diagnosis, treatment decisions or patient care.
Through the Heart Hero App. The signal is sent immediately via Bluetooth if the device is connected or downloaded at the next connection.
All four batteries need to be fully functioning for the device to work.
The device uses 4x CR123A Batteries, and comes with batteries and a set of pads at first purchase.
Yes. It is portable and can be used at both work and at home. The pads are one time use and more information is here on how to replace them.
No. HeartHero is a reusable AED. After a rescue, the pad cartridge must be replaced before the AED can be returned to service. Replacing the batteries is also recommended to ensure the AED is fully prepared for its next use.
The pre-connected cartridge contains the electrode pads, which are designed for single-patient use and must be replaced after every rescue with a new cartridge.
After using the AED, you should:
Replace the used pad cartridge with a new pre-connected cartridge.
Replace the batteries (recommended).
Download the event data if required.
Allow the AED to complete its automatic self-test before returning it to service.
The advantage of the pre-connected cartridge is that the replacement pads are already fitted in the correct orientation and ready to use, helping to reduce delays and minimise the risk of errors during the next emergency. HeartHero is designed to be used again and again. Simply replace the pad cartridge and, as recommended, the batteries, and the AED will be ready for its next emergency.
The HeartHero defibrillator has a paediatric button and single dual pads for adult and paediatric use – more information is available HERE.
No special chargers or expensive batteries are needed. HeartHero uses four standard CR123A batteries, making replacements fast and accessible from many shops and supermarkets in the UK and overseas.
The shipping charge to a UK address is £12.99 +VAT.
You should make a daily visual check to ensure the light is flashing green. A monthly full check is recommended to keep in mind the expiry of the pads.
If the Heart Hero AED is connected to the app, it will inform you if the self-check finds a fault.
The AED currently has two languages – English and Spanish. Other language options will be available via the app in the future.
No, HeartHero is lightweight and ultra-portable, fitting easily in your bag or vehicle glovebox. It is a life-saving device that you can take anywhere.
Yes; not only is HeartHero water resistant – being able to withstand exposure to moisture such as a spillage or leaking water bottle in your bag – but it is also dustproof and can operate in extreme temperatures.
HeartHero uses one set of pads for both adult and child use. Not only does this avoid any potential mix-ups during usage, but it also helps to keep the device affordable and accessible.
With the iPhone app connected, you can now receive wireless software updates, a first for the AED industry, without having to send your device back to our maintenance team. For more detail, read our
blog post here: https://mydefib.co.uk/resources/update-hearthero-with-bluetooth
For Android users, the app has not yet been released, so please follow customer serviceinstructions for updates to your HeartHero AED.
The price of HeartHero in the UK is £599.00 (excl. VAT) + shipping (Launch offer). Navigate to our Product section to order HeartHero now.
HeartHero, with pads and batteries included, weighs 0.590 kg. Its dimensions are 16 cm x 15.5 cm x 4.3 cm, and it has an integrated ergonomic handle.
You do not need formal training to use HeartHero. The controls are easy and intuitive, with clear visual and voice instructions.
Yes. HeartHero has the UKCA Mark and CE Mark, making it available in the UK and 32 other countries.
With you every step of the way
HeartHero owners can respond to sudden cardiac arrest with confidence. You’ll have access to a resource library of video guides, step-by-step instructions and informative content on the condition.
How to replace your defibrillator pads
If your HeartHero defibrillator pads have reached their expiry date, how do you replace them? This mini guide offers easy steps including, where to get replacement pads, how to detach your old pads and dispose of them safely, and how to connect your new pair of pads.
How to replace your defibrillator batteries
Your HeartHero defibrillator comes with four standard CR123A batteries. You can monitor your battery status easily with the HeartHero app. When the time comes to replace them, the process is simple. This article covers where you can buy batteries for your defibrillator and how to insert them.