A Non-contact Vital Sign Monitoring System for Ambulances Using Dual-frequency Microwave Radars

Overview

Journal Med Biol Eng Comput

Publisher Springer

Specialties Biomedical Engineering
Medical Informatics

Date 2008 Oct 24

PMID 18946695

Citations 6

Authors

Satoshi Suzuki

Takemi Matsui

Hiroshi Kawahara

Hiroto Ichiki

Jun Shimizu

Yoko Kondo

Shinji Gotoh

Hirofumi Yura

Bonpei Takase

Masayuki Ishihara

Affiliations

Soon will be listed here.

Abstract

We developed a novel non-contact monitoring system to measure the vital signs of casualties inside a moving ambulance. This system was designed to prevent exposure of patients to infectious organisms under biochemical hazard conditions. The system consists of two microwave radars: a 10-GHz respiratory-monitoring radar is positioned 20 cm away from the surface of the isolator. The 24-GHz cardiac-monitoring radar is positioned below the stretcher underneath the isolator. The subject (22.13 +/- 0.99 years) was placed inside the isolator on a stretcher in the simulated ambulance. While the ambulance was in motion at a speed of approximately 10 km/h, the heart rates determined by the cardiac-monitoring radar correlated significantly with those measured by ECG (r = 0.69, p < 0.01), and the respiratory rates derived from the respiratory-monitoring radar correlated with those measured by the respiration curves (r = 0.97, p < 0.0001). The proposed system appears promising for future on-ambulance monitoring of the vital sign of casualties exposed to toxins.

Citing Articles

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Contact-Based Methods for Measuring Respiratory Rate.

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Infrared Camera-Based Non-contact Measurement of Brain Activity From Pupillary Rhythms.

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PCA-based artifact removal algorithm for stroke detection using UWB radar imaging.

Ricci E, Di Domenico S, Cianca E, Rossi T, Diomedi M Med Biol Eng Comput. 2016; 55(6):909-921.

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An ultrasonic contactless sensor for breathing monitoring.

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