Development of a Wearable Reflection-Type Pulse Oximeter System to Acquire Clean PPG Signals and Measure Pulse Rate and SpO<sub>2</sub> with and without Finger Motion
Clinical devices play a vital role in diagnosing and monitoring people’s health. A pulse oximeter (PO) is one of the most common clinical devices for critical medical care. In this paper, we explain how we developed a wearable PO. We propose a new electronic circuit based on an analog filter that ca...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-11-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/9/11/1905 |
| _version_ | 1797547990774185984 |
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| author | Partha Pratim Banik Shifat Hossain Tae-Ho Kwon Hyoungkeun Kim Ki-Doo Kim |
| author_facet | Partha Pratim Banik Shifat Hossain Tae-Ho Kwon Hyoungkeun Kim Ki-Doo Kim |
| author_sort | Partha Pratim Banik |
| collection | DOAJ |
| description | Clinical devices play a vital role in diagnosing and monitoring people’s health. A pulse oximeter (PO) is one of the most common clinical devices for critical medical care. In this paper, we explain how we developed a wearable PO. We propose a new electronic circuit based on an analog filter that can separate red and green photoplethysmography (PPG) signals, acquire clean PPG signals, and estimate the pulse rate (PR) and peripheral capillary oxygen saturation (SpO<sub>2</sub>). We propose a PR and SpO<sub>2</sub> measurement algorithm with and without the motion artifact. We consider three types of motion artifacts with our acquired clean PPG signal from our proposed electronic circuit. To evaluate our proposed algorithm, we measured the accuracy of our estimated SpO<sub>2</sub> and PR. To evaluate the quality of our estimated PR (bpm) and SpO<sub>2</sub> (%) with and without the finger motion artifact, we used the quality evaluation metrics: mean absolute percentage error (MAPE), mean absolute error (MAE), and reference closeness factor (RCF). Without the finger motion condition, we found that our proposed wearable PO device achieved an average 2.81% MAPE, 2.08 bpm MAE, 0.97 RCF, and 98.96% SpO<sub>2</sub> accuracy. With a finger motion, the proposed wearable PO device achieved an average 4.5% MAPE, 3.66 bpm MAE, 0.96 RCF, and 96.88% SpO<sub>2</sub> accuracy. We also show a comparison of our proposed PO device with a commercial Fingertip PO (FPO) device. We have found that our proposed PO device performs better than the commercial FPO device under finger motion conditions. To demonstrate the implementation of our wearable PO, we developed a smartphone app to allow the PO device to share PPG signals, PR, and SpO<sub>2</sub> through Bluetooth communication. We also show the possible applications of our proposed PO as a wearable, hand-held PO device, and a PPG signal acquisition system. |
| first_indexed | 2024-03-10T14:53:00Z |
| format | Article |
| id | doaj.art-90af3626ab6543fea020c310e5be3538 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T14:53:00Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-90af3626ab6543fea020c310e5be35382023-11-20T20:51:21ZengMDPI AGElectronics2079-92922020-11-01911190510.3390/electronics9111905Development of a Wearable Reflection-Type Pulse Oximeter System to Acquire Clean PPG Signals and Measure Pulse Rate and SpO<sub>2</sub> with and without Finger MotionPartha Pratim Banik0Shifat Hossain1Tae-Ho Kwon2Hyoungkeun Kim3Ki-Doo Kim4Korea I.T.S. Co., Ltd., Gangnam, Seoul 06373, KoreaSchool of Electronics Engineering, Kookmin University, Seoul 02707, KoreaSchool of Electronics Engineering, Kookmin University, Seoul 02707, KoreaKorea I.T.S. Co., Ltd., Gangnam, Seoul 06373, KoreaSchool of Electronics Engineering, Kookmin University, Seoul 02707, KoreaClinical devices play a vital role in diagnosing and monitoring people’s health. A pulse oximeter (PO) is one of the most common clinical devices for critical medical care. In this paper, we explain how we developed a wearable PO. We propose a new electronic circuit based on an analog filter that can separate red and green photoplethysmography (PPG) signals, acquire clean PPG signals, and estimate the pulse rate (PR) and peripheral capillary oxygen saturation (SpO<sub>2</sub>). We propose a PR and SpO<sub>2</sub> measurement algorithm with and without the motion artifact. We consider three types of motion artifacts with our acquired clean PPG signal from our proposed electronic circuit. To evaluate our proposed algorithm, we measured the accuracy of our estimated SpO<sub>2</sub> and PR. To evaluate the quality of our estimated PR (bpm) and SpO<sub>2</sub> (%) with and without the finger motion artifact, we used the quality evaluation metrics: mean absolute percentage error (MAPE), mean absolute error (MAE), and reference closeness factor (RCF). Without the finger motion condition, we found that our proposed wearable PO device achieved an average 2.81% MAPE, 2.08 bpm MAE, 0.97 RCF, and 98.96% SpO<sub>2</sub> accuracy. With a finger motion, the proposed wearable PO device achieved an average 4.5% MAPE, 3.66 bpm MAE, 0.96 RCF, and 96.88% SpO<sub>2</sub> accuracy. We also show a comparison of our proposed PO device with a commercial Fingertip PO (FPO) device. We have found that our proposed PO device performs better than the commercial FPO device under finger motion conditions. To demonstrate the implementation of our wearable PO, we developed a smartphone app to allow the PO device to share PPG signals, PR, and SpO<sub>2</sub> through Bluetooth communication. We also show the possible applications of our proposed PO as a wearable, hand-held PO device, and a PPG signal acquisition system.https://www.mdpi.com/2079-9292/9/11/1905wearablepulse oximeterpulse rateSpO<sub>2</sub>motion artifactsmartphone app |
| spellingShingle | Partha Pratim Banik Shifat Hossain Tae-Ho Kwon Hyoungkeun Kim Ki-Doo Kim Development of a Wearable Reflection-Type Pulse Oximeter System to Acquire Clean PPG Signals and Measure Pulse Rate and SpO<sub>2</sub> with and without Finger Motion Electronics wearable pulse oximeter pulse rate SpO<sub>2</sub> motion artifact smartphone app |
| title | Development of a Wearable Reflection-Type Pulse Oximeter System to Acquire Clean PPG Signals and Measure Pulse Rate and SpO<sub>2</sub> with and without Finger Motion |
| title_full | Development of a Wearable Reflection-Type Pulse Oximeter System to Acquire Clean PPG Signals and Measure Pulse Rate and SpO<sub>2</sub> with and without Finger Motion |
| title_fullStr | Development of a Wearable Reflection-Type Pulse Oximeter System to Acquire Clean PPG Signals and Measure Pulse Rate and SpO<sub>2</sub> with and without Finger Motion |
| title_full_unstemmed | Development of a Wearable Reflection-Type Pulse Oximeter System to Acquire Clean PPG Signals and Measure Pulse Rate and SpO<sub>2</sub> with and without Finger Motion |
| title_short | Development of a Wearable Reflection-Type Pulse Oximeter System to Acquire Clean PPG Signals and Measure Pulse Rate and SpO<sub>2</sub> with and without Finger Motion |
| title_sort | development of a wearable reflection type pulse oximeter system to acquire clean ppg signals and measure pulse rate and spo sub 2 sub with and without finger motion |
| topic | wearable pulse oximeter pulse rate SpO<sub>2</sub> motion artifact smartphone app |
| url | https://www.mdpi.com/2079-9292/9/11/1905 |
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