A non-contact vital sign monitoring system for ambulances using dual-frequency microwave radars
A non-contact vital sign monitoring system for ambulances using dual-frequency microwave radars
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DOI：
10.1007/s11517-008-0408-x
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发表时间：
2009-01-01
影响因子：
3.2
通讯作者：
Ishihara, Masayuki
中科院分区：
文献类型：
--
作者：
Suzuki, Satoshi;Matsui, Takemi;Ishihara, Masayuki
我们开发了一种新型的非接触式监测系统，用于测量移动救护车内伤员的生命体征。该系统旨在防止患者在生化危险条件下暴露于感染性生物体。该系统由两个微波雷达组成：一个10 ghz呼吸监测雷达位于距离隔离器表面20厘米的地方。24 ghz心脏监测雷达位于隔离器下方的担架下方。受试者（22.13 +/- A 0.99岁）被放置在模拟救护车的担架上的隔离器内。当救护车以约10 km/h的速度行驶时，心脏监测雷达测量的心率与心电图测量的心率呈显著相关（r = 0.69, p < 0.01），呼吸监测雷达测量的呼吸频率与呼吸曲线测量的呼吸频率呈显著相关（r = 0.97, p < 0.0001）。该系统似乎有望在未来的救护车上监测暴露于毒素的伤亡人员的生命体征。
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 +/- A 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.