ホームヘルスケアのための寝具組込型非接触心電図モニタの基礎的検討

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  • A Primary Study of Indirect ECG Monitor Embedded in a Bed for Home Health Care
  • ホーム ヘルス ケア ノ タメノ シング クミコミガタ ヒセッショク シンデンズ モニタ ノ キソテキ ケントウ

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A system for monitoring electrocardiogram (ECG) through clothes inserted between the measuring electrodes and the body surface of a subject when lying on a mattress has been proposed. The principle of the system is based on capacitive coupling involving the electrode, the clothes, and the skin. Validation of the system revealed the following: (1) In spite of the gain attenuation in the pass band of the system, distortion of the detected signal was subtle even when clothes thicker than 1mm were inserted, (2) The system was able to yield a stable ECG from a subject particularly during sound sleep, (3) The system succeeded in detecting ECG after changing the posture into any of supine, right lateral, or left lateral positions by adopting a newly devised electrode configuration. Therefore, the proposed system appears promising for application to bedding as a non-invasive and awareness-free system for ECG monitoring during sleep.

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