John Lach, PhD
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The whole concept of body sensor networks started a little over 10 years ago where people saw a new opportunity with the emergence of ultra low power sensors, micro-controllers, wireless transceivers so they saw some opportunities for miniaturization, longer battery lives than what had been previously been possible.

So people started just designing these sensor nodes very clanky at first but could be worn on different parts of the body and people began experimenting with sensors such as accelerometers and gyroscopes to capture movements soon there's some physiological parameters such as CGE EEG.

And for those a lot of their focus was taking the capabilities that we have in the hospital and making them more portable and mobile to enable more continuous measures. So a lot of the early years was just figuring out the technical issue related to that, and what's really happened in the past few years is much tighter integration with the real medical needs.

So you're seeing a lot more collaboration between engineers, and physicians, and medical researchers, and nurses, and the patients themselves. To try to understand what some of the real opportunities are in this space. In the end as engineers we can build really cool gadgets but that optimally might be useful to anyone.

So now there's this heavy focus on improving patient outcomes, improving quality of care reducing healthcare costs that has really become this interdisciplinary collaborative affair.