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This paper presents a body-fixed-sensor-based approach to assess potential sleep apnea patients. A trial involving 15 patients at a sleep unit was undertaken. Vibration sounds were acquired from an accelerometer sensor fixed with a noninvasive mounting on the suprasternal notch of subjects resting in supine position. Respiratory, cardiac, and snoring components were extracted by means of digital signal...
The aim of this work is to establish some basic methodological aspects that should not be ignored in the arduous task of the development of telemedical platforms for the efficient control and management of chronic elderly patients. Among the main methodological proposed concepts should be: an integrated market-oriented approach, a user-centered design, an evaluation-driven development and a work plan...
In this paper we present a system based on a sensor of acceleration for acquisition and monitoring of diverse physiological signals, by extracting respiratory, cardiac and snoring components inside the main source. Digital signal processing techniques used frequently in Biomedical Engineering have been used. The acceleration produced by the cardiac signals, the respiratory movements and the vibrations...
In this paper, an accelerometer is used to measure the vibration of the neck and thorax, in order to detect important signals that can be used in the diagnosis of sleep apnoea. Accelerations produced by the heart signals, the breathing movement and the snoring sounds are detected by an accelerometer attached to the skin. Mean power levels of the signal in different frequency bands are used to map...
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