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A Wearable Combined Wrist Pulse Measurement System Using Airbags for Pressurization

1
School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China
2
School of Basic Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(2), 386; https://doi.org/10.3390/s19020386
Received: 13 December 2018 / Revised: 9 January 2019 / Accepted: 15 January 2019 / Published: 18 January 2019
(This article belongs to the Special Issue Wearable Sensors and Devices for Healthcare Applications)
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Abstract

The pulse measurement instrument is based on traditional Chinese medicine (TCM) and is used to collect the pulse of patients to assist in diagnosis and treatment. In the existing pulse measurement system, desktop devices have large volumes, complex pressure adjusting operations, and unstable pressurization. Wearable devices tend to have no pressurization function or the function to pressurize three channels separately, which are not consistent with the diagnostic method in TCM. This study constructs a wearable pulse measurement system using airbags for pressurization. This system uses guide plates, guide grooves, and positioning screws to adjust the relative position of the wristband and locate Cun, Guan and Chi regions. The pulse signal measured by the sensor is collected and sent to a computer by microcontroller unit. In experiments, this system successfully obtains the best pulse-taking pressure, its pulse waveform under continuous decompression, and the pulse waveform of three regions under light, medium, and heavy pressure. Compared with the existing technology, the system has the advantages of supporting single-region and three-region pulse acquisition, independent pressure adjustment, and position adjustment. It meets the needs of home, medical, and experimental research, and it is convenient and comfortable to wear and easy to carry. View Full-Text
Keywords: pulse measurement; traditional Chinese medicine; wearable combined wristbands; airbag; position adjustment; pulse-taking pressure; pulse waveform pulse measurement; traditional Chinese medicine; wearable combined wristbands; airbag; position adjustment; pulse-taking pressure; pulse waveform
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Jin, C.; Xia, C.; Zhang, S.; Wang, L.; Wang, Y.; Yan, H. A Wearable Combined Wrist Pulse Measurement System Using Airbags for Pressurization. Sensors 2019, 19, 386.

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