Wearable Health-Monitoring Patches

In real world of hospital-wide applications, skin interface and/or signal conduction and data acquisition always present as the key problem on any form of physiological monitoring. Depending on the type of patient's skin, and its conditions, data integrity has always been a challenge for the users as well as the clinicians.. Another issue is the level of available signal that can be picked up /or sensed, which varies anywhere from a few micro-volts to an acceptable good 1 milli-volt level..

are they water/temperature proof?.

Typically present day skin electrodes are exposed to body temperature variations only. Extreme temperature exposures are not a factor nor considered as they will also be detrimental to the applied areas of the skin. Up to a certain extent made to be water resistant only.. Since the pores in our skin will normally need to breath and produces sweats as well.

I believe the type of adhesives used are of main considerations as well as the interface chemical for better electrical conduction. For other obvious reasons to avoid unnecessary skin reactions to the skin.