An Electronic Patch for Wearable Health Monitoring by Reflectance Pulse Oximetry

Rasmus Grønbek Haahr, Sune Bro Duun, Mette H. Toft, Bo Belhage, Jan Larsen, Karen Birkelund, Erik Vilain Thomsen

    Research output: Contribution to journalJournal articleResearchpeer-review

    2945 Downloads (Pure)


    We report the development of an Electronic Patch for wearable health monitoring. The Electronic Patch is a new health monitoring system incorporating biomedical sensors, microelectronics, radio frequency (RF) communication, and a battery embedded in a 3-dimensional hydrocolloid polymer. In this paper the Electronic Patch is demonstrated with a new optical biomedical sensor for reflectance pulse oximetry so that the Electronic Patch in this case can measure the pulse and the oxygen saturation. The reflectance pulse oximetry solution is based on a recently developed annular backside silicon photodiode to enable low power consumption by the light emitting components. The Electronic Patch has a disposable part of soft adhesive hydrocolloid polymer and a reusable part of hard polylaurinlactam. The disposable part contains the battery. The reusable part contains the reflectance pulse oximetry sensor and microelectronics. The reusable part is ’clicked’ into the disposable part when the patch is prepared for use. The patch has a size of 88 mm by 60 mm and a thickness of 5 mm.
    Original languageEnglish
    JournalI E E E Transactions on Biomedical Circuits and Systems
    Issue number1
    Pages (from-to)45-53
    Publication statusPublished - 2012

    Bibliographical note

    (c) 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.


    • Wearable health monitorin
    • Photoplethysmography (PPG)
    • Electronic Patch
    • Blood oxygen saturation
    • Reflectance pulse oximetry


    Dive into the research topics of 'An Electronic Patch for Wearable Health Monitoring by Reflectance Pulse Oximetry'. Together they form a unique fingerprint.

    Cite this