RESUMEN

For decades, telemonitoring of vital parameters has been a recurring topic among experts. Because of its lack of economical advantages it has not established itself as a standard up to now. Thanks to novel wireless communication technologies such as Bluetooth or Zigbee, the enormous technological progress in mobile communication via GSM, GPRS, as well as UMTS and various radical medical changes within disease management programs, currently very promising new potentials for telemonitoring are appearing. This article summarizes the current technological developments, discusses their advantages and drawbacks, and deduces scenarios and technical requirements for future system architectures.

Asunto(s)

Determinación de la Presión Sanguínea/instrumentación , Diagnóstico por Computador/instrumentación , Monitoreo Ambulatorio/instrumentación , Oximetría/instrumentación , Evaluación de la Tecnología Biomédica , Telemedicina/instrumentación , Telemetría/instrumentación , Determinación de la Presión Sanguínea/métodos , Determinación de la Presión Sanguínea/tendencias , Peso Corporal , Diagnóstico por Computador/métodos , Diagnóstico por Computador/tendencias , Electrocardiografía Ambulatoria/instrumentación , Electrocardiografía Ambulatoria/métodos , Electrocardiografía Ambulatoria/tendencias , Humanos , Internet , Monitoreo Ambulatorio/métodos , Monitoreo Ambulatorio/tendencias , Oximetría/métodos , Oximetría/tendencias , Telecomunicaciones/instrumentación , Telemedicina/métodos , Telemedicina/tendencias , Telemetría/métodos , Telemetría/tendencias

RESUMEN

Wireless near-field transmission has been a challenge for scientists developing medical sensors for a long time. Here, instruments which measure a patient's ECG, oxygen saturation, blood pressure, peak flow, weight, blood glucose etc. are to be equipped with suitable transmission technology. Application scenarios for these sensors can be found in all medical areas where cable connections are irritating for the doctor, patient and other care personnel. This problem is especially common in sport medicine, sleep medicine, emergency medicine and intensive care. Based on its beneficial properties with regard to power consumption, range, data security and network capability, the worldwide standard radio technology Bluetooth was selected to transmit measurements. Since digital data is sent to a receiving station via Bluetooth, the measurement pre-processing now takes place in the patient sensor itself, instead of being processed by the monitor. In this article, a Bluetooth ECG, Bluetooth pulse oximeter, Bluetooth peak flow meter and Bluetooth event recorder will be introduced. On the one hand, systems can be realized with these devices, which allow patients to be monitored online (ECG, pulse oximeter). These devices can also be integrated in disease management programs (peak flow meter) and can be used to monitor high-risk patients in their home environment (event recorder).

Asunto(s)

Monitoreo Ambulatorio/instrumentación , Procesamiento de Señales Asistido por Computador/instrumentación , Telemedicina/instrumentación , Telemetría/instrumentación , Transductores , Diseño de Equipo , Análisis de Falla de Equipo , Monitoreo Ambulatorio/métodos , Monitoreo Ambulatorio/tendencias , Telemedicina/métodos , Telemedicina/tendencias , Telemetría/métodos , Telemetría/tendencias

RESUMEN

In this paper, a novel real-time algorithm for detecting ischemia in the ECG signal is proposed. The goal of this research is to meet the requirements of some smart cardiac home care devices, which can automatically diagnose the ECG and detect the heart risks outside the hospital, especially heart ischemia without symptoms in their early stages. The algorithm is developed based on a real time R peak detector, time domain traditional ECG parameters, the advanced morphologic parameters from Karhunen-Loève transform, and the adaptive neurofuzzy logic classification. Besides, in order to improve the reliability of our algorithm, several significant constraints of the ECG signal are considered. As a result, the ischemia episodes can be detected if the ischemic alteration persists longer than one minute in the ECG signal.

RESUMEN

In following the directive "ambulant medical treatment is preferable to in hospital treatment" the home care area is becoming more and more important in western societies. In this paper a system for monitoring cardiological risk patients is presented. Special attention was paid to an automatic detection of life-threatening events and the initiation of immediate help.

RESUMEN

The algorithms used in automated external defibrillators (AED) do not provide the necessary reliability of detection of fibrillation, especially in presence of artifacts. The system described in this article allows detecting different artifacts, improving the detection quality. Also an approach is suggested, to extend the AED functions to detect pulseless electrical activity. The new algorithm uses the impedance signal as an additional parameter to diagnose the cardiac arrest. The parallel analysis of ECG and impedance signals allows detecting noise, motion, respiration and hemodynamic parameters. The comparative tests of the algorithm demonstrated the excellent performance of the algorithm.