Electrically conductive adhesive enable to manufacture high performance patch probe for non-invasive physiological assessment

A reflection-mode photoplethysmographic (rPPG) patch probe has been researched to improve its performance for non-invasive physiological assessment through electrically conductive adhesives (ECAs) based manufacture processes. Special PiN photodiodes and Light Emitting Diodes (LEDs) were mounted on a flexible printed circuit to reach the objectives of both sensitivity and stability, and user comfort as well. The trial rPPG probes were successfully manufactured and evaluated in the house. The results gained from this study shown the functions of the probe could be fully realized by ECAs. The preliminary outcome demonstrates the suitability for the cardiovascular assessment.