Reducing the Risk of Human Error
in Hospital Security

Metrasens Detection

Hospitals are where we go to become healed, so it’s not comforting to know that poor hospital security can put our lives at risk. MRI machines are in simple terms ‘big magnets.’  If a ferrous object enters the MRI machine’s magnetic fringe field it will fly towards the equipment. This frightening phenomenon is known as ‘the projectile effect.’

Metresens detection device
Components of a detection device

Not only does this pose a significant risk to the patient’s life but each projectile effect event is estimated to cost an average of $43,172. Furthermore, the emergency costs of shutting down an MRI machine or “quenching the magnet” can cost anywhere between $20,000 and $500,000.

Before entering MRI rooms’ patients are required to surrender any ferrous material, but they often make mistakes, taking in belt buckles made from ferrous material for example. It’s this human error that presents personal risk and a significant financial penalty.

Design analysis for Metresens Detection
Metresens Detection device prototype

Smallfry partnered with Metrasens to develop a system that removes the risk of human error in hospital security. The Ferroguard Beacon uses a unique metal detection system. It does not generate its own magnetic field. Instead it senses small changes in the Earth’s magnetic flux around it. This highly effective system saves lives and allows hospitals to spend money on this preventative solution, rather than fixing mistakes.

This award-winning design brought an eight-fold increase in turnover to Metrasens within one year.

“Smallfry brought a level of elegance and sophistication to our product that has received great reactions from our customers. Their sourcing and manufacturing knowledge have undoubtedly helped us improve our commercial proposition and delivered real competitive advantage”- Metrasens CEO Dr Simon Goodyear

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