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The future of medtech: how radio could transform in-hospital connectivity

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John O’Gorman, product innovation manager, at S3 Connected Health, writes about his solution to the connectivity challenge in hospitals.

According to Gartner, 5G and high-functioning networks will accelerate mobile capabilities in healthcare and help connect more than 90 per cent of in-hospital medical devices by 2025.

While these predictions are extremely promising, they don’t consider the huge connectivity challenges hospitals experience sending data externally to medtech companies. With thick concrete walls, congested networks, and complex connected medical devices such as MRIs taking priority; 5G, Wi-Fi and Bluetooth can’t be relied on to send patient vitals, or drug and device data from hospitals to medtech companies in real time.

So, how does a medtech company connect to an in-hospital device in a complex and secure manner to access patient and device data in real time?

The simple answer is they can’t, until now. 

Radio technology: A solution to the hospital connectivity challenge

The solution arrived almost by accident, and in the surprising form of radio technology.

During an open day held by Trinity College, Dublin, I was shown the new prototype for Long Range Wide-Area Networks (LoRaWAN). The technology uses radio waves to broadcast data, has a range of 20 – 30 km, can broadcast a few bytes of data per day ­– which is enough to send information such as device activity or flag when vital medicine is low ­– and has a battery life of a year. 

Not wanting to get ahead of ourselves, we started testing it at S3 Connected Health’s Dublin HQ. The team were perplexed to see us wandering around the grounds with antenna to judge if signals could find a way through our building’s concrete and glass infrastructure; it turned out our building acted as a great model for a hospital.

Next, we worked with the CONNECT Centre, Trinity College to create a roadmap for the technology. We then collaborated with leading Irish universities on two aspects: Firstly to develop bespoke antennae for using LoRaWAN in hospitals, and secondly to profile the radiation pattern from the antenna to create integration methods that would work for all hospitals, regardless of their infrastructure.

Once we’d finished the development phase, we were ready to put LoRaWAN to the test in live hospital settings. We were confident that by using the technology we could:

Demonstrating the effectiveness of radio technology in hospitals

Once we had a fit for purpose product we partnered with four hospitals in Ireland and one in the US to pilot the technology and track results.

We discovered that we could use one router in conjunction with the LoRaWAN to connect an entire hospital ward, compared to the ten to 20 routers that were previously needed with conventional hospital systems. This transmitted data faster both across and out of the hospital and was more cost and time-effective to set up. In fact, in one hospital, installing one LoRaWAN gateway allowed us to receive transmission through the entire building, which had previously been using 300 Wi-Fi repeaters without achieving full connection. With a Wi-Fi-based system, engineers are also required to visit the hospital to programme each device and router manually.

Our mission is to help medtech companies and hospitals work together seamlessly and improve the quality of healthcare;  this is just step one.

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