The HeartSine® Personal Defibrillation Unit PDU 400 is a portable AED unit that has been designed to address the criticality of Sudden Cardiac Arrest; at the same time, the user interface has been tailored for the lay rescuer with both audio and visual prompts.

The innovative, single-use technology within this portable AED unit makes it an affordable option for home use.

It is easy to use with audio and visual prompts to guide the user step-by-step through the rescue process. It comes complete with integrated electrodes and a battery with a 5-year shelf life – everything you need to save the life of a friend or family member in one unit.

How it works

The PDU 400 is a single-use automated external defibrillator (AED) that analyzes the heart rhythm and delivers an electrical shock to victims of Sudden Cardiac Arrest (SCA) in order to restore the heart to normal rhythm.

  1. Turn on the PDU 400.
  2. Clear, calm instructions guide the rescuer through visual and audio prompts.
  3. The system guides the user through pad application to shock delivery if required.

Easy-to-use, a lifesaving technology available for use where it’s needed most.

The PDU 400 delivers a low-energy biphasic waveform. This waveform is automatically tailored to the patient impedance such that the same energy is delivered irrespective of that impedance.

It is known that the lower the energy required for conversion from Ventricular Fibrillation to Normal Sinus Rhythm, the less the damage to the tissue of the heart and the less likely the patient is to suffer repeat attacks, which formerly might have ensued from defibrillation. However, there is a threshold below which the energy might not be effective.

HeartSine has conducted extensive research in an attempt both to increase efficacy and decrease delivered energy. In clinical trials, it has been shown that using a “low-tilt” waveform increases the efficacy of the therapeutic shock and allows a reduction of delivered energy from more than 150 Joules to 120 Joules.

A low-tilt waveform is one in which the difference in voltage between the start and end of both phases is on the order of 20 per cent (compared to the previous differences of some 50 per cent or greater).

The results of the clinical trials have shown that with a low-tilt (approximately 20 per cent) waveform and a 120 Joule energy, the efficacy of conversion is some 2 per cent better than a standard tilt (approximately 50 per cent) waveform delivering 150 Joules.

This pioneering research was conducted by HeartSine in association with the Royal Victoria Hospital, Belfast.

PDU 400 Key Differentiators

  • Cost-effective, single-use technology
  • Audio and visual prompts guide the user step-by-step through the rescue process
  • 5-year warranty including integrated battery and electrodes
  • Suitable for adults and children from eight years old, weighing more than 25kg (55 lbs.)
  • Automatic self-check
  • Event data saved on a standard SD memory card, allowing it to be removed and given to a physician as required
  • The samaritan PAD has a rating of IP56, providing the PDU 400 with the highest level of protection from dust or moisture ingress in the industry.
  • CE Marked