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Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 1 신윤철 BioMedical Instrumentation 학습노트 4 생체의공학과 2010103798 신윤철.

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Presentation on theme: "Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 1 신윤철 BioMedical Instrumentation 학습노트 4 생체의공학과 2010103798 신윤철."— Presentation transcript:

1 Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 1 신윤철 BioMedical Instrumentation 학습노트 4 생체의공학과 2010103798 신윤철

2 Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 2 신윤철 Contents RMP Membrane (1) Electric Field 에 의한 이온의 이동 (2) Diffusion 에 의한 이온의 이동 (3) Current Density Action Potential Action Potential Propagation Volume Conduction Bio Potential

3 Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 3 신윤철 RMP Membrane Diffusion + + + + + + - - - - - - Electric Field (Conduction) + -

4 Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 4 신윤철

5 Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 5 신윤철

6 Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 6 신윤철

7 Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 7 신윤철 Action Potential A B C

8 Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 8 신윤철 Action Potential Propagation  Action Potential Propagation : Action Potential axon 을 타고 전도되는 현상 : 전달되는 동안 Action Potential 의 크기는 줄어들지 않음 : Action Potential 발생 -Refractory period 현상 : 한번 depolarization 이 되면 다시 자극이 들어와도 바로 depolarization 을 일으키지 않음 + + + ++ + + + + + + ++ + + + + + + + + + + + + + +++ + + + + + + + + + + + + + + + + + + + + + + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - + + + + + + + + + + + + + + + + + + + + + + + + - - - - - - - - - - - - - - + + + + + + + + + + + + + + - - - - - - - - - - - - - -

9 Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 9 신윤철 Volume Conduction Biopotential  전극을 통해 우리 몸의 전기신호를 측정하는 모식도 - : Equipotential line, : Current Streamline Electrode ( 전극 ) 심전도 파형 (ECG) 뇌파 파형 (EEG) 근전도 파형 (EMG)

10 Dept. of Biomed. Eng.BME302: Medical InstrumentationKyung Hee Univ. 10 신윤철 감사합니다


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