Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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The Effect and the Limitation of Driven-right-leg Ground on Indirect-contact ECG measurement

간접접촉 심전도 측정에서의 오른발구동 접지의 효과와 한계

  • Lim, Yong Gyu (Dept. of Oriental Biomedical Engineering, Sangji University)
  • 임용규 (상지대학교 한방의료공학과)
  • Received : 2018.04.04
  • Accepted : 2018.04.27
  • Published : 2018.04.30
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Abstract

This study reviews the common-mode noise model of indirect-contact ECG measurement which uses capacitive electrode and capacitive ground, and shows the reason of the large common-mode noise in indirect-contact ECG. And then, this study shows driven-right-leg ground in indirect-contact ECG measurement, and reviews how the driven-right-leg ground reduces the common-mode noise. This study then analyzes the relation between the effective area of the indirect-contact ground and the gain of the driven-right-leg circuit. This study introduces the output voltage saturation of the driven-right-leg circuit, which occurs frequently in indirect-contact ECG measurement with the condition of the high ground impedance. This study then shows the effect of the driven-right-leg circuit saturation on the common-mode noise.

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References

  1. Y. G. Lim, K. K. Kim, and K. S. Park, "ECG measurement on a chair without conductive contact," IEEE Trans. Biomedical Engineering, vol. 53, no. 5, pp. 956-959, 2006. https://doi.org/10.1109/TBME.2006.872823
  2. A. Ueno, Y. Akabane, T. Kato, H. Hoshino, S. Kataoka, and Y. Ishiyama, "Capacitive sensing of electrocardiographic potential through cloth from the dorsal surface of the body in a supine position: a preliminary study," IEEE Trans. Biomedical Engineering, vol. 54, no. 4, pp. 759-766, 2007. https://doi.org/10.1109/TBME.2006.889201
  3. J. M. Lee, F. Pearce, A. D. Hibbs, R. Matthews, and C. Morrissette, "Evaluation of a Capacitively-Coupled, Non-Contact (through Clothing) Electrode or ECG Monitoring and Life Signs Detection for the Objective Force Warfighter," in RTO HFM Symposium St. Pete Beach, USA, 2004, pp. 1-10.
  4. Y. G. Lim, K. K. Kim, and K. S. Park, "ECG recording on a bed during sleep without direct skin-contact," IEEE Trans. Biomedical Engineering, vol. 54, no. 4, pp. 718-725, 2007. https://doi.org/10.1109/TBME.2006.889194
  5. R. Pallas-Areny, "Interference-rejection characteristics of biopotential amplifiers: a comparative analysis," IEEE Trans. Biomedical Engineering, vol. 35, no. 11, pp. 953-959, 1988. https://doi.org/10.1109/10.8676
  6. B. B. Winter, and J. G. Webster, "Reductionl of Interference Due to Common Mode Voltage in Biopotential Amplifiers," IEEE Trans. Biomedical Engineering, no. 1, pp. 58-62, 1983.
  7. B. B. Winter, and J. G. Webster, "Driven-right-leg circuit design," IEEE Trans. Biomedical Engineering, no. 1, pp. 62- 66, 1983.
  8. K. K. Kim, Y. K. Lim, and K. S. Park, "Common mode noise cancellation for electrically non-contact ECG measurement system on a chair," IEEE-EMBC 2005, pp. 5881-5883.
  9. A. C. Metting van Rijn, A. Peper, and C. A. Grimbergen, "High-quality recording of bioelectric events_Part 1_Interference reduction," Medical and Biological Engineering and Computing, vol. 28, no. 5, pp. 389-397, September 01, 1990. https://doi.org/10.1007/BF02441961
  10. S. M. Lee, K. S. Sim, K. K. Kim, Y. G. Lim, and K. S. Park, "Thin and flexible active electrodes with shield for capacitive electrocardiogram measurement," Medical & biological engineering & computing, vol. 48, no. 5, pp. 447-457, 2010. https://doi.org/10.1007/s11517-010-0597-y
  11. T. Komensky, M. Jurcisin, K. Ruman, O. Kovac, D. Laqua, and P. Husar, "Ultra-wearable capacitive coupled and common electrode-free ECG monitoring system," IEEE-EMBC 2012, pp. 1594-1597.