PAT is simpler to measure than PTT and, as a result, has been proposed as a PTT surrogate. Subsequent studies have shown that, due to accuracy issues, PAT isn’t an ideal replacement for PTT as a blood-pressure marker. However, it may potentially indicate wide trend blood-pressure changes in some cases.7 The interesting point here is, there’s a means using a two-chip solution to measure PAT via a wearable.
Now, imagine the potential solutions that could emerge by adding the capability to calculate PTT from the data gathered by the wearable form factors. Applying sensor fusion to bring together data from multiple sensors along with artificial intelligence to identify patterns and opportunities for action creates many more possibilities. The sophisticated data analysis would happen in the background. But for the wearer, he or she simply has a device that provides continuous monitoring, comfortably and conveniently.
According to the Tractica market intelligence firm, worldwide shipments of wearable healthcare devices are projected to hit nearly 98 million units annually by 2021.8 With increasing healthcare costs along with growing and aging populations, a good case can be made for tapping into the utility of wearable devices—and the rich data they collect—to transform the traditional healthcare model into one that’s more personalized, proactive, and preventive in nature.
Andrew Burt is Executive Business Manager, Industrial & Healthcare Business Unit, at Maxim Integrated – www.maximintegrated.com
This article first appeared in Electronic Design - www.electronicdesign.com