Body sensors

Leading a normal life while being monitored

DELTA has developed an innovative ultra-low-power wireless platform for medical monitoring applications.

Mobile and battery-powered

Called ePatch, the technology provides a complete battery-powered sensor with datalogging facilities and low power radio/ antenna - all in a form factor similar to a normal heart monitor electrode.

Innovative technology inside ePatch makes wireless sensing truly viable in a large range of healthcare applications:

• Bio-compatible
• Ultra low power consumption allowing 1 week+ operation
• Robustness withstands showering and other daily activities 
• Modular design principles provide great programmability 
• Construction packs everything into a 'plaster' with a low profile of a few millimetres 
• Flexible radio protocol supports datalogging, periodic download, alarms, always-on connection...

The first version of ePatch has a sensor for electromyogram (EMG) monitoring. A wide range of different sensors can be interfaced, including heart monitoring and oxygen level (SpO2).

Re-usable or disposable

The initial version of ePatch can be re-used, by changing the adhesive element and button cell. However, the technology is well-suited for conversion to single-use applications, by integrating the current multiple-device architecture into a low-cost ASIC.  

High portability

The receiver element of the system is also small and highly portable and can be carried in a pocket, clipped to a belt, etc.  DELTA has designed this as a module, so that it can be integrated easily into standard consumer products such as a mobile phone, network access point, etc.