Key result
The AMON wrist-wearable monitor sensors were functional in 29 subjects but require algorithm fine-tuning, and the QBIC prototype achieved a 30-50% size reduction compared to similar devices.
Wearable telemedicine devices like AMON and QBIC show functional promise for continuous monitoring, though further refinement of data processing algorithms is needed.
Prototype testing supports wearable feasibility; leaves open algorithm validation before clinical telemedicine use.
Wearable medical devices can provide both continuous monitoring and ubiquitous treatment. Challenges in this area include the need for a low-power/power-saving design to extend battery life and to reduce the size of the battery itself. This is followed by size and weight restrictions to meet patient expectations of what is 'wearable', the biocompatibility of all outer housings and the final assembly concept. Two examples of wearable medical device are described: a wrist-wearable telemedicine monitor for heart patients (AMON) and a generic belt-integrated computing platform for home and hospital use (QBIC). The electrocardiogram (ECG), the blood oxygen saturation (SpO2) sensor and the blood pressure meter of the AMON device were tested with 29 subjects. The sensors were found to be functional, but as expected the data processing algorithms will need some fine-tuning. The prototype QBIC demonstrates a size reduction of 30-50% in relation to comparable devices.
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Scheffler et al. (2005) studied heart patients (n=29). AMON and QBIC wearable devices was evaluated on Sensor functionality (ECG, SpO2, blood pressure). The AMON wrist-wearable monitor sensors were functional in 29 subjects but require algorithm fine-tuning, and the QBIC prototype achieved a 30-50% size reduction compared to similar devices.
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