DocumentCode :
69554
Title :
Noncontact Monitoring of Cardiorespiratory Activity by Electromagnetic Coupling
Author :
Teichmann, Daniel ; Foussier, Jerome ; Jing Jia ; Leonhardt, Steffen ; Walter, Michael
Author_Institution :
Med. Inf. Technol., RWTH Aachen Univ., Aachen, Germany
Volume :
60
Issue :
8
fYear :
2013
fDate :
Aug. 2013
Firstpage :
2142
Lastpage :
2152
Abstract :
In this paper, the method of noncontact monitoring of cardiorespiratory activity by electromagnetic coupling with human tissue is investigated. Two measurement modalities were joined: an inductive coupling sensor based on magnetic eddy current induction and a capacitive coupling sensor based on displacement current induction. The system´s sensitivity to electric tissue properties and its dependence on motion are analyzed theoretically as well as experimentally for the inductive and capacitive coupling path. The potential of both coupling methods to assess respiration and pulse without contact and a minimum of thoracic wall motion was verified by laboratory experiments. The demonstrator was embedded in a chair to enable recording from the back part of the thorax.
Keywords :
bioelectric phenomena; biological tissues; biomedical measurement; capacitive sensors; cardiology; eddy currents; electromagnetic coupling; patient monitoring; pneumodynamics; capacitive coupling sensor; cardiorespiratory activity; displacement current induction; electric tissue properties; electromagnetic coupling; human tissue; inductive coupling sensor; magnetic eddy current induction; noncontact monitoring; respiration; thoracic wall motion; Capacitance; Coils; Couplings; Electromagnetic coupling; Frequency measurement; Impedance; Monitoring; Electromagnetic coupling; noncontact monitoring; pulse; respiration; sensor fusion; tissue impedance; Cardiography, Impedance; Electromagnetic Fields; Equipment Design; Equipment Failure Analysis; Heart Rate; Humans; Male; Monitoring, Ambulatory; Oscillometry; Reproducibility of Results; Respiratory Rate; Sensitivity and Specificity; Young Adult;
fLanguage :
English
Journal_Title :
Biomedical Engineering, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9294
Type :
jour
DOI :
10.1109/TBME.2013.2248732
Filename :
6470662
Link To Document :
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