In this work, a novel ambulatory ECG monitoring device developed in-house called HOLTIN is analyzed when operating in complex indoor scenarios. The HOLTIN system is described, from the technological platform level to its functional model. In addition, by using in-house 3D ray launching simulation code, the wireless channel behavior, which enables ubiquitous operation, is performed. The effect of human body presence is taken into account by a novel simplified model embedded within the 3D Ray Launching code. Simulation as well as measurement results are presented, showing good agreement. These results may aid in the adequate deployment of this novel device to automate conventional medical processes, increasing the coverage radius and optimizing energy consumption.

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The new paradigm of personal health demands open standards and middleware components that permit transparent integration and end-to-end interoperability from new personal health devices to healthcare information system. The use of standards seems to be the internationally accepted way to face this challenge. In this article, the implementation of an end-to-end standard-based personal health solution is presented. It integrates the ISO/IEEE11073 standard for the interoperability of personal health devices in the patient environment and the ISO/EN13606 standard for the interoperable exchange of electronic healthcare records and proposes a new approach for the end-to-end ISO/IEEE11073-ISO/EN13606 communication. The design strictly fulfills all the technical requirements of the most recent versions of both standards. An entire prototype has been designed, developed, and tested as a proof-of-concept of a personal health solution.

This project focuses on the design and implementation of an intelligent wearable device for ECG continuous acquisition and transmission to some remote gateway using Bluetooth technology. The acquisition device has been designed for having very low power consumption and reduced size. The Analog Devices' ADuC831 Micro-Converter for achieving the analog to digital conversion and the CSR's BlueCore2 chip for the Bluetooth transmission are the core of the device. The designed device is an important component of a complete prototype for remote ECG continuous monitoring of patients with diverse cardiac diseases.