HeartSine Samaritan 350P - Monthly Spotlight

This month we’re taking a look at the HeartSine Samaritan 350P Semi Automatic Defibrillator. Please note the 360P is the fully automatic version of this defibrillator.

The HeartSine Samaritan 350P is one of the lightest defibrillators on the market, weighing in at just 1.1kg. This makes it a great choice for a range of environments, especially if you plan to take your defib on the go with you. The device itself has an IP56 rating, giving a high level of protection against dust and water damage.

About IP ratings

IP ratings, also known as ingress protection ratings, are a means of measuring the degree of environmental protection an electrical unit has against dust and water damage. The higher the IP number is, the better protection your defibrillator will have against any potential damage from moisture or debris.

An IP rating consists of 2 separate numbers. For example, the HeartSine Samaritan 350P has an IP56 rating. The first digit, or in this case, the ‘5’ denotes the level of protection the device has against dust and debris - at 5, this provides a very good level of protection against dust. The second digit ‘6’ denotes the level of protection against moisture. This again is a very high rating, and it means your defibrillator is protected from powerful jets of water from all directions, however it will not be protected if completely submerged in water up to 1 metre or more.

It’s important to note that if an AED rating contains an ‘X’ rather than a number, this means it has not yet been rated in that particular category, so its level of protection may be unknown.

Device overview

The HeartSine 350P is designed to be used by any layperson in a cardiac arrest emergency. The device has features such as audio and visual indicators to help you through the rescue process, CPR coaching with metronome to ensure you are performing good quality chest compressions, and is also suitable for paediatric use (a separate paediatric pad-pak is required for use on children aged 1-8 years old).

Pads and battery

The HeartSine uses 2 separate combined Pad-Paks (one suitable for use on adults and one suitable for use on paediatric patients). A pad-pak consists of an integrated battery and electrode single-use cartridge with one expiration date. This means that you only need to make one simple maintenance change every four years (or unless the pads are used before that time).

1. Pad-Pak for use on patients weighing over 25 kg (55 lb), or equivalent to a child of approximately eight years of age or older.

2. Pediatric-Pak for use on smaller children (from 1 to 8 years old and weighing under 25 kg (55 lbs).

It’s important to mention here that you should not waste time trying to determine the exact age and/or weight of a patient. If you’re unsure of their age, or if the adult pad-pak is all you have available to you, then it can be used regardless.

The expiration date (yyyy-mm-dd) can be located on the back of the Pad-Pak. It is recommended that the HeartSine samaritan PAD be stored with an Adult Pad-Pak inserted and that a spare Pad-Pak and Pediatric-Pak be stored in the carry case or nearby so that they can be accessed quickly and replaced when necessary. The stored Pad-Pak or Pediatric-Pak should remain in the protective plastic pouch until use.

The device is able to recognise if you have the adult or paediatric pad-pak inserted, and you should hear the voice prompt “Child Patient” when the machine is switched on.


The HeartSine samaritan PAD uses the HeartSine samaritan ECG arrhythmia analysis algorithm. This algorithm will evaluate the patient’s ECG to ascertain if a therapeutic shock is appropriate. If a shock is required, the HeartSine samaritan PAD will charge and advise the user to press the shock button. If no shock is advised, the device will pause to allow the user to

deliver CPR. Remember, a shock will only be delivered by the machine if it is necessary to save the life of the casualty.

Device maintenance

The HeartSine samaritan PAD is a relatively low maintenance device. It is recommended that on a weekly basis, you or the assigned guardian of the defibrillator checks the status indicator. The device performs a self-test routine at midnight (GMT) every Sunday and any issues will become apparent by checking the indicator. During the self-test, the status light blinks red but returns to green upon successful completion of the self-test routine. If the status indicator is not flashing green every 5 to 10 seconds, if the status indicator is flashing red or you hear continuous beeping, an issue has been detected.

On a monthly basis, it may be a good idea to give your defibrillator a once over to visually check it for any apparent physical damage.

Ensure you keep a note of the pad-pak expiration date so you can change it in plenty of time before it expires - don’t leave it until the last minute to get a replacement!

After using the HeartSine samaritan PAD

Of course we hope you never need to use it, but in the event you use your HeartSine Samaritan 350P, you can download the data from the device using HeartSine Saver EVOTM software. This software lets you manage the event data after your HeartSine samaritan PAD is used. You can provide this data, if requested, to a patient’s doctor. The software can be downloaded here: http://uk.heartsine.com/support/upload-saver-evo/

Registering your device 

Medical device regulations require HeartSine Technologies to track the location of each HeartSine samaritan PAD AED, Pad-Pak, and Pediatric-Pak sold. Therefore, it is important that you register your device, either using the manufacturer’s online registration tool here

Shop the HeartSine 350P defibrillator online.

If you have any further questions regarding the HeartSine 350P defibrillator, or any of our products, please don’t hesitate to get in touch with us.