• Journal of the Korean Magnetics Society
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• v.24 no.3
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• pp.90-96
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• 2014

The magnetic field variation by the permanent magnet fluctuation positioned on a "Chwan" of wrist according to the movement of radial artery was generated. The clip-type pulsimeter equipped with a Hall device sensing magnetic field pulse movement analyzed the characteristics of pulse wave as output signals. The magnetic field curve and pulse waveform simulated by the finite element method were compared and analyzed with each other. Also, the variation of magnetic field distribution one permanent magnet investigated by the fabrication of clip-type pulsimeter simulator. This result suggests that the clip-type pulsimeter can be used the reproducible and efficacious oriental diagnostic medical instrument.

• Proceedings of the Korean Magnestics Society Conference
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• 2013.12a
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• pp.75-76
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• 2013

• Journal of the Korean Magnetics Society
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• v.24 no.5
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• pp.146-151
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• 2014

The pulse waveforms of a carotid artery in the neck and a radial artery in the hand wrist were individually measured by using clip-type pulsimeter equipped with a permanent and Hall device. The pulse transit time and the pulse wave velocity obtained through comparison of two pulse waveforms were analyzed each other. A value of the pulse wave velocity was about 8.5 m/s similar to one measured by a conservative method. This result suggests that the clip-type pulsimeter as the reproducible and reliable one oriental diagnostic medical device can be predicted to any atherosclerosis state in the cardiac circulatory system.

• Journal of the Korean Magnetics Society
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• v.22 no.4
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• pp.130-135
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• 2012

One prototype product of clip-type pulsimeter equipped with magnetic field sensing semiconductor Hall device after one permanent magnet attached "Chwan" position in center of a radial artery was developed. The clip-pulsimeter was composed of the hard ware system measuring to voltage signals. To measure the blood velocity, the radial artery pulsimeter is simultaneously connected the PPG (photoplethysmograph). Analysis and comparison of two pulse waves data has done obtained from a clinical test of forty subjects of 20 ages. The value of a blood velocity simultaneously measured from a radial artery puls wave and PPG is an average value of 0.8m/s. The usage of this research results is possible to store the biomedical signals for health care.

• Journal of the Korean Magnetics Society
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• v.23 no.4
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• pp.130-134
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• 2013

The clip-type pulsimeter equipped with a magnetic sensing Hall device and the most popular body sign of the electrocardiogram (ECG) were investigated in order to analyze the pulse wave velocity (PWV). The PWV simultaneously calculated by means of time difference between the maximum peak of ECG pulse wave and the starting point of radial artery pulse wave, and distance difference between the heart position and the radial wrist position. The PWV analyzed from the clinical data was a wider scope of 5~7 m/s with an average value of 6 m/s. By the prediction of blood vessel's elasticity from the analysis of PWV, it may be useful for developing an oriental-western diagnostic medical signal device for a U-health-care system in the future.