맥동성분의 적분비를 이용한 펄스 옥시메터의 산소포화도 계산모델 설계 및 분석

Architecture & Analysis of $SpO_2$ Computing Model Using Integral Ratio of Pulsating Components

  • 김윤영 (연세대학교 보건과학대학 의용전자공학과) ;
  • 김동철 (연세대학교 보건과학대학 의용전자공학과) ;
  • 이윤선 (연세대학교 보건과학대학 의용전자공학과)
  • Kim, Y.Y. (Department of Biomedical Engineering, College of Health Science, Yonsei University) ;
  • Kim, D.C. (Department of Biomedical Engineering, College of Health Science, Yonsei University) ;
  • Lee, Y.S. (Department of Biomedical Engineering, College of Health Science, Yonsei University)
  • 발행 : 1997.05.23

초록

Oxygen saturation is an important parameter in clinical fields; fetal monitoring, apnea, emergency medicine etc. Because of monitoring patients continuously, pulse oximeter that measures oxigen saturation non-invasively is regarded attentively. But, though research about accuracy of signal extraction has been developed, it actually plays a supplementary part in hospital for not trusting the principle of measurement by clinicians. In this paper focusing on these things, first we suggested simple mathematical modelling on separating do components, ac components andnoise components in optical signal transmitted from fingertip or earlobe, and then we considered oxygen saturation computing algorithm using integral ratio of pulsating components. Last, we analyzed its effect by comparing received data.

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