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Life-saving innovation

Cobalt has proudly developed a range of Heartsine defibrillators over the course of the last 12 years. Out of all the models, the Samaritan PAD 500P has proved to be the standout product in terms of reliability and longevity. The Samaritan PAD 500P defibrillator is an innovative device that supports rescuers by providing feedback on the effectiveness of their CPR efforts in real-time. The small size, weight and affordability ensure this product is a front runner in the field today.

The defibrillator is intended for use by non-medical users and professional rescuers in domestic environments – cases where a cardiac arrest has occurred out-of-hospital. It was developed specifically to be intuitive and easy to use so that non-professional rescuers need only minimal training and management of the defibrillator to use it effectively.

Support is provided by a sophisticated software CPR advisor, guiding the required force and speed of compressions for the victim. Included directives are “push harder”, “push faster”, “push slower”, or reassurance that they are performing good compressions.

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2005 Australian International Design Award

Australian International Design Award

Design Achievements




Visual Aids


The Team We believe good design happens by expert people working as a team.

Jack Magree

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Warwick Brown

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Brett Capron

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Rob Cuzner

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Simon Andersen

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Ryan Harper

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Michael Cornish

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Shannon Smith

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Matthew Lewandowski

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Rob Clifton

Rob Clifton
Woman and man preparing to shock patient using Heartsine Samaritan PAD

Designed for Practicality

It was important to the design that the product incorporated Heartsine’s signature elements that are consistently reflected and refined across Heartsine’s product family. The metaphorical inspiration for the design aesthetic was the unassuming life-ring, a symbol that any rescuer would easily recognise as a life-saving device. The TPR over-moulded grip also provides a seal around the product’s diameter, which is so successfully watertight it is often specified for situations on docks, boats, and even wet sports fields where a shock may need to be administered.

The PAD500P weighs just 1.1kg (2.4lb) and is up to 56% smaller than other AEDs on the market. When the original 500P was developed nearly ten years ago it was one of the very first defibrillators to be compact enough to be easily used and carried. The small size and weight ensure the product is still a front-runner in the field today.

Other Work