MEMS pressure sensor array wearable for Traditional Chinese Medicine pulse-taking

Kabigting, Jessica Evangeline Tan; Chen, Abigail D.; Chang, Enoch Jing-Han; Lee, Wei-Ning; Roberts, Robert C.

doi:10.1109/bsn.2017.7936007

Cited by 13 publications

(9 citation statements)

References 8 publications

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“…In this study, the three pressure sensors placed on the wrist were able to measure three different pulse waves with only a single cuff-type manchette. The same results as those obtained in this study have been reported in previous studies using different systems [3][4][5][6][7][8]. However, in those studies, large and complicated mechanical systems were required, and ultrasonic diagnostic imaging equipment was used in measurements.…”

Section: Discussionsupporting

confidence: 88%

“…In this method, various diseases are diagnosed by palpating while changing the pressure of the ngers. The factors determining the pulse condition are the depth, width, length, frequency, rhythm, and strength [1,3,4]. By palpating the pulse, traditional Chinese medical doctors read the physical properties of blood vessels, heart rate variability, blood pressure reex, and pulse wave velocity.…”

Section: Introductionmentioning

confidence: 99%

“…In theory, pulse diagnosis is expected to realize objective and scienti cally reproducible quantitative diagnosis by applying three precise pressure sensors. Recently, various studies have investigated the quantitative evaluation of pulse diagnosis [2][3][4][5][6][7][8]. According to these studies, there is a possibility that the anatomical position of blood vessels and the pulse waveform can be measured accurately.…”

Section: Introductionmentioning

confidence: 99%

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Preliminary Study of an Objective Evaluation Method for Pulse Diagnosis using Radial Artery Pulse Measurement Device

Yamada

Inoue

Shiraishi

et al. 2021

ABE

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In traditional Chinese pulse diagnosis, the pulses of bilateral radial arteries are palpated by three ngers. In this study, a device that can objectively perform pulse diagnosis using multiple pressure sensors with a cuff was developed. The device has three pressure sensors in series and a cuff to apply external pressure load. Pulse waves were measured using the non-invasive pulse diagnostic device. The relationship of the data obtained from the proposed system with the diagnosis by the traditional method was examined. The study was conducted with the approval of the Ethics Committee in Tohoku University. Twelve adult male subjects were studied. Data of pulse waveforms recorded from the pulse diagnosis device, electrocardiogram, and continuous blood pressure measured at the ngertip were stored and analyzed. The pulse waves of the subjects were categorized as middle pulse, oating pulse, or sunken pulse according to pulse diagnosis in traditional Chinese medicine. Pulse-waveform data were obtained to measure the pulse-pressure changes, which showed different patterns of the rise time at the three measurement sites. Envelope analysis of the pulse waveform from the middle sensor revealed that the peak value of the pulse pressure increased during calculation stress compared to the resting state. It was possible to measure the pulse waves even when a higher external pressure was applied. Objective pulse-wave measurement using a method similar to that in traditional pulse diagnosis was realized, and pulse waveforms were measured using the proposed pulse diagnosis system.

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Section: Discussionsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Preliminary Study of an Objective Evaluation Method for Pulse Diagnosis using Radial Artery Pulse Measurement Device

Yamada

Inoue

Shiraishi

et al. 2021

ABE

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“…In Zhou et al’s study, they proposed a novel three-channel self-pressurized wrist pulse system [12]. Jessica E. T. Kabigting proposed a wearable pulse-taking device [22].…”

Section: Discussionmentioning

confidence: 99%

A Wearable Combined Wrist Pulse Measurement System Using Airbags for Pressurization

Jin

Xia

Zhang

et al. 2019

Sensors

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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.

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“…This problem also exists in other jobs [ 22 ]. There are also some wearable pulse wave acquisition devices that have been verified in principle, but there are still problems such as the inability to perform real-time calculations or to apply continuously changing pressure [ 23 , 24 , 25 ]. Building a wearable pulse wave monitoring system to obtain simultaneously pulse wave and pressure information under continuously varying pressure is one of the urgent problems to be solved.…”

Section: Introductionmentioning

confidence: 99%

A Wearable and Real-Time Pulse Wave Monitoring System Based on a Flexible Compound Sensor

et al. 2022

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Continuous monitoring of pulse waves plays a significant role in reflecting physical conditions and disease diagnosis. However, the current collection equipment cannot simultaneously achieve wearable and continuous monitoring under varying pressure and provide personalized pulse wave monitoring targeted different human bodies. To solve the above problems, this paper proposed a novel wearable and real-time pulse wave monitoring system based on a novel flexible compound sensor. Firstly, a custom-packaged pressure sensor, a signal stabilization structure, and a micro pressurization system make up the flexible compound sensor to complete the stable acquisition of pulse wave signals under continuously varying pressure. Secondly, a real-time algorithm completes the analysis of the trend of the pulse wave peak, which can quickly and accurately locate the best pulse wave for different individuals. Finally, the experimental results show that the wearable system can both realize continuous monitoring and reflecting trend differences and quickly locate the best pulse wave for different individuals with the 95% accuracy. The weight of the whole system is only 52.775 g, the working current is 46 mA, and the power consumption is 160 mW. Its small size and low power consumption meet wearable and portable scenarios, which has significant research value and commercialization prospects.

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MEMS pressure sensor array wearable for Traditional Chinese Medicine pulse-taking

Cited by 13 publications

References 8 publications

Preliminary Study of an Objective Evaluation Method for Pulse Diagnosis using Radial Artery Pulse Measurement Device

Preliminary Study of an Objective Evaluation Method for Pulse Diagnosis using Radial Artery Pulse Measurement Device

A Wearable Combined Wrist Pulse Measurement System Using Airbags for Pressurization

A Wearable and Real-Time Pulse Wave Monitoring System Based on a Flexible Compound Sensor

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