Automatic and continuous blood pressure monitoring via an optical-fiber-sensor-assisted smartwatch

Abstract Automatic and continuous blood pressure monitoring is important for preventing cardiovascular diseases such as hypertension. The evaluation of medication effects and the diagnosis of clinical hypertension can both benefit from continuous monitoring. The current generation of wearable blood...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Li, Liangye [verfasserIn] Sheng, Shunfeng Liu, Yunfei Wen, Jianpei Song, Changying Chen, Zhipeng Xu, Wangyang Zhang, Zhi Fan, Wei Chen, Chen Sun, Qizhen Shum, Perry-Ping

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	Blood pressure Optical fiber sensor Smartwatch

Anmerkung:	© The Author(s) 2023

Übergeordnetes Werk:	Enthalten in: PhotoniX - [London] : SpringerOpen, 2020, 4(2023), 1 vom: 03. Juli
Übergeordnetes Werk:	volume:4 ; year:2023 ; number:1 ; day:03 ; month:07

Links:	Volltext

DOI / URN:	10.1186/s43074-023-00099-z

Katalog-ID:	SPR052139352

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520			\|a Abstract Automatic and continuous blood pressure monitoring is important for preventing cardiovascular diseases such as hypertension. The evaluation of medication effects and the diagnosis of clinical hypertension can both benefit from continuous monitoring. The current generation of wearable blood pressure monitors frequently encounters limitations with inadequate portability, electrical safety, limited accuracy, and precise position alignment. Here, we present an optical fiber sensor-assisted smartwatch for precise continuous blood pressure monitoring. A fiber adapter and a liquid capsule were used in the building of the blood pressure smartwatch based on an optical fiber sensor. The fiber adapter was used to detect the pulse wave signals, and the liquid capsule was used to expand the sensing area as well as the conformability to the body. The sensor holds a sensitivity of -213µw/kPa, a response time of 5 ms, and high reproducibility with 70,000 cycles. With the assistance of pulse wave signal feature extraction and a machine learning algorithm, the smartwatch can continuously and precisely monitor blood pressure. A wearable smartwatch featuring a signal processing chip, a Bluetooth transmission module, and a specially designed cellphone APP was also created for active health management. The performance in comparison with commercial sphygmomanometer reference measurements shows that the systolic pressure and diastolic pressure errors are -0.35 ± 4.68 mmHg and -2.54 ± 4.07 mmHg, respectively. These values are within the acceptable ranges for Grade A according to the British Hypertension Society (BHS) and the Association for the Advancement of Medical Instrumentation (AAMI). The smartwatch assisted with an optical fiber is expected to offer a practical paradigm in digital health.
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allfields	10.1186/s43074-023-00099-z doi (DE-627)SPR052139352 (SPR)s43074-023-00099-z-e DE-627 ger DE-627 rakwb eng Li, Liangye verfasserin aut Automatic and continuous blood pressure monitoring via an optical-fiber-sensor-assisted smartwatch 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2023 Abstract Automatic and continuous blood pressure monitoring is important for preventing cardiovascular diseases such as hypertension. The evaluation of medication effects and the diagnosis of clinical hypertension can both benefit from continuous monitoring. The current generation of wearable blood pressure monitors frequently encounters limitations with inadequate portability, electrical safety, limited accuracy, and precise position alignment. Here, we present an optical fiber sensor-assisted smartwatch for precise continuous blood pressure monitoring. A fiber adapter and a liquid capsule were used in the building of the blood pressure smartwatch based on an optical fiber sensor. The fiber adapter was used to detect the pulse wave signals, and the liquid capsule was used to expand the sensing area as well as the conformability to the body. The sensor holds a sensitivity of -213µw/kPa, a response time of 5 ms, and high reproducibility with 70,000 cycles. With the assistance of pulse wave signal feature extraction and a machine learning algorithm, the smartwatch can continuously and precisely monitor blood pressure. A wearable smartwatch featuring a signal processing chip, a Bluetooth transmission module, and a specially designed cellphone APP was also created for active health management. The performance in comparison with commercial sphygmomanometer reference measurements shows that the systolic pressure and diastolic pressure errors are -0.35 ± 4.68 mmHg and -2.54 ± 4.07 mmHg, respectively. These values are within the acceptable ranges for Grade A according to the British Hypertension Society (BHS) and the Association for the Advancement of Medical Instrumentation (AAMI). The smartwatch assisted with an optical fiber is expected to offer a practical paradigm in digital health. Blood pressure (dpeaa)DE-He213 Optical fiber sensor (dpeaa)DE-He213 Smartwatch (dpeaa)DE-He213 Sheng, Shunfeng aut Liu, Yunfei aut Wen, Jianpei aut Song, Changying aut Chen, Zhipeng aut Xu, Wangyang aut Zhang, Zhi aut Fan, Wei aut Chen, Chen aut Sun, Qizhen (orcid)0000-0002-2410-6470 aut Shum, Perry-Ping aut Enthalten in PhotoniX [London] : SpringerOpen, 2020 4(2023), 1 vom: 03. Juli (DE-627)1694891844 (DE-600)3017005-9 2662-1991 nnns volume:4 year:2023 number:1 day:03 month:07 https://dx.doi.org/10.1186/s43074-023-00099-z kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 4 2023 1 03 07
spelling	10.1186/s43074-023-00099-z doi (DE-627)SPR052139352 (SPR)s43074-023-00099-z-e DE-627 ger DE-627 rakwb eng Li, Liangye verfasserin aut Automatic and continuous blood pressure monitoring via an optical-fiber-sensor-assisted smartwatch 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2023 Abstract Automatic and continuous blood pressure monitoring is important for preventing cardiovascular diseases such as hypertension. The evaluation of medication effects and the diagnosis of clinical hypertension can both benefit from continuous monitoring. The current generation of wearable blood pressure monitors frequently encounters limitations with inadequate portability, electrical safety, limited accuracy, and precise position alignment. Here, we present an optical fiber sensor-assisted smartwatch for precise continuous blood pressure monitoring. A fiber adapter and a liquid capsule were used in the building of the blood pressure smartwatch based on an optical fiber sensor. The fiber adapter was used to detect the pulse wave signals, and the liquid capsule was used to expand the sensing area as well as the conformability to the body. The sensor holds a sensitivity of -213µw/kPa, a response time of 5 ms, and high reproducibility with 70,000 cycles. With the assistance of pulse wave signal feature extraction and a machine learning algorithm, the smartwatch can continuously and precisely monitor blood pressure. A wearable smartwatch featuring a signal processing chip, a Bluetooth transmission module, and a specially designed cellphone APP was also created for active health management. The performance in comparison with commercial sphygmomanometer reference measurements shows that the systolic pressure and diastolic pressure errors are -0.35 ± 4.68 mmHg and -2.54 ± 4.07 mmHg, respectively. These values are within the acceptable ranges for Grade A according to the British Hypertension Society (BHS) and the Association for the Advancement of Medical Instrumentation (AAMI). The smartwatch assisted with an optical fiber is expected to offer a practical paradigm in digital health. Blood pressure (dpeaa)DE-He213 Optical fiber sensor (dpeaa)DE-He213 Smartwatch (dpeaa)DE-He213 Sheng, Shunfeng aut Liu, Yunfei aut Wen, Jianpei aut Song, Changying aut Chen, Zhipeng aut Xu, Wangyang aut Zhang, Zhi aut Fan, Wei aut Chen, Chen aut Sun, Qizhen (orcid)0000-0002-2410-6470 aut Shum, Perry-Ping aut Enthalten in PhotoniX [London] : SpringerOpen, 2020 4(2023), 1 vom: 03. Juli (DE-627)1694891844 (DE-600)3017005-9 2662-1991 nnns volume:4 year:2023 number:1 day:03 month:07 https://dx.doi.org/10.1186/s43074-023-00099-z kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 4 2023 1 03 07
allfields_unstemmed	10.1186/s43074-023-00099-z doi (DE-627)SPR052139352 (SPR)s43074-023-00099-z-e DE-627 ger DE-627 rakwb eng Li, Liangye verfasserin aut Automatic and continuous blood pressure monitoring via an optical-fiber-sensor-assisted smartwatch 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2023 Abstract Automatic and continuous blood pressure monitoring is important for preventing cardiovascular diseases such as hypertension. The evaluation of medication effects and the diagnosis of clinical hypertension can both benefit from continuous monitoring. The current generation of wearable blood pressure monitors frequently encounters limitations with inadequate portability, electrical safety, limited accuracy, and precise position alignment. Here, we present an optical fiber sensor-assisted smartwatch for precise continuous blood pressure monitoring. A fiber adapter and a liquid capsule were used in the building of the blood pressure smartwatch based on an optical fiber sensor. The fiber adapter was used to detect the pulse wave signals, and the liquid capsule was used to expand the sensing area as well as the conformability to the body. The sensor holds a sensitivity of -213µw/kPa, a response time of 5 ms, and high reproducibility with 70,000 cycles. With the assistance of pulse wave signal feature extraction and a machine learning algorithm, the smartwatch can continuously and precisely monitor blood pressure. A wearable smartwatch featuring a signal processing chip, a Bluetooth transmission module, and a specially designed cellphone APP was also created for active health management. The performance in comparison with commercial sphygmomanometer reference measurements shows that the systolic pressure and diastolic pressure errors are -0.35 ± 4.68 mmHg and -2.54 ± 4.07 mmHg, respectively. These values are within the acceptable ranges for Grade A according to the British Hypertension Society (BHS) and the Association for the Advancement of Medical Instrumentation (AAMI). The smartwatch assisted with an optical fiber is expected to offer a practical paradigm in digital health. Blood pressure (dpeaa)DE-He213 Optical fiber sensor (dpeaa)DE-He213 Smartwatch (dpeaa)DE-He213 Sheng, Shunfeng aut Liu, Yunfei aut Wen, Jianpei aut Song, Changying aut Chen, Zhipeng aut Xu, Wangyang aut Zhang, Zhi aut Fan, Wei aut Chen, Chen aut Sun, Qizhen (orcid)0000-0002-2410-6470 aut Shum, Perry-Ping aut Enthalten in PhotoniX [London] : SpringerOpen, 2020 4(2023), 1 vom: 03. Juli (DE-627)1694891844 (DE-600)3017005-9 2662-1991 nnns volume:4 year:2023 number:1 day:03 month:07 https://dx.doi.org/10.1186/s43074-023-00099-z kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 4 2023 1 03 07
allfieldsGer	10.1186/s43074-023-00099-z doi (DE-627)SPR052139352 (SPR)s43074-023-00099-z-e DE-627 ger DE-627 rakwb eng Li, Liangye verfasserin aut Automatic and continuous blood pressure monitoring via an optical-fiber-sensor-assisted smartwatch 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2023 Abstract Automatic and continuous blood pressure monitoring is important for preventing cardiovascular diseases such as hypertension. The evaluation of medication effects and the diagnosis of clinical hypertension can both benefit from continuous monitoring. The current generation of wearable blood pressure monitors frequently encounters limitations with inadequate portability, electrical safety, limited accuracy, and precise position alignment. Here, we present an optical fiber sensor-assisted smartwatch for precise continuous blood pressure monitoring. A fiber adapter and a liquid capsule were used in the building of the blood pressure smartwatch based on an optical fiber sensor. The fiber adapter was used to detect the pulse wave signals, and the liquid capsule was used to expand the sensing area as well as the conformability to the body. The sensor holds a sensitivity of -213µw/kPa, a response time of 5 ms, and high reproducibility with 70,000 cycles. With the assistance of pulse wave signal feature extraction and a machine learning algorithm, the smartwatch can continuously and precisely monitor blood pressure. A wearable smartwatch featuring a signal processing chip, a Bluetooth transmission module, and a specially designed cellphone APP was also created for active health management. The performance in comparison with commercial sphygmomanometer reference measurements shows that the systolic pressure and diastolic pressure errors are -0.35 ± 4.68 mmHg and -2.54 ± 4.07 mmHg, respectively. These values are within the acceptable ranges for Grade A according to the British Hypertension Society (BHS) and the Association for the Advancement of Medical Instrumentation (AAMI). The smartwatch assisted with an optical fiber is expected to offer a practical paradigm in digital health. Blood pressure (dpeaa)DE-He213 Optical fiber sensor (dpeaa)DE-He213 Smartwatch (dpeaa)DE-He213 Sheng, Shunfeng aut Liu, Yunfei aut Wen, Jianpei aut Song, Changying aut Chen, Zhipeng aut Xu, Wangyang aut Zhang, Zhi aut Fan, Wei aut Chen, Chen aut Sun, Qizhen (orcid)0000-0002-2410-6470 aut Shum, Perry-Ping aut Enthalten in PhotoniX [London] : SpringerOpen, 2020 4(2023), 1 vom: 03. Juli (DE-627)1694891844 (DE-600)3017005-9 2662-1991 nnns volume:4 year:2023 number:1 day:03 month:07 https://dx.doi.org/10.1186/s43074-023-00099-z kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 4 2023 1 03 07
allfieldsSound	10.1186/s43074-023-00099-z doi (DE-627)SPR052139352 (SPR)s43074-023-00099-z-e DE-627 ger DE-627 rakwb eng Li, Liangye verfasserin aut Automatic and continuous blood pressure monitoring via an optical-fiber-sensor-assisted smartwatch 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s) 2023 Abstract Automatic and continuous blood pressure monitoring is important for preventing cardiovascular diseases such as hypertension. The evaluation of medication effects and the diagnosis of clinical hypertension can both benefit from continuous monitoring. The current generation of wearable blood pressure monitors frequently encounters limitations with inadequate portability, electrical safety, limited accuracy, and precise position alignment. Here, we present an optical fiber sensor-assisted smartwatch for precise continuous blood pressure monitoring. A fiber adapter and a liquid capsule were used in the building of the blood pressure smartwatch based on an optical fiber sensor. The fiber adapter was used to detect the pulse wave signals, and the liquid capsule was used to expand the sensing area as well as the conformability to the body. The sensor holds a sensitivity of -213µw/kPa, a response time of 5 ms, and high reproducibility with 70,000 cycles. With the assistance of pulse wave signal feature extraction and a machine learning algorithm, the smartwatch can continuously and precisely monitor blood pressure. A wearable smartwatch featuring a signal processing chip, a Bluetooth transmission module, and a specially designed cellphone APP was also created for active health management. The performance in comparison with commercial sphygmomanometer reference measurements shows that the systolic pressure and diastolic pressure errors are -0.35 ± 4.68 mmHg and -2.54 ± 4.07 mmHg, respectively. These values are within the acceptable ranges for Grade A according to the British Hypertension Society (BHS) and the Association for the Advancement of Medical Instrumentation (AAMI). The smartwatch assisted with an optical fiber is expected to offer a practical paradigm in digital health. Blood pressure (dpeaa)DE-He213 Optical fiber sensor (dpeaa)DE-He213 Smartwatch (dpeaa)DE-He213 Sheng, Shunfeng aut Liu, Yunfei aut Wen, Jianpei aut Song, Changying aut Chen, Zhipeng aut Xu, Wangyang aut Zhang, Zhi aut Fan, Wei aut Chen, Chen aut Sun, Qizhen (orcid)0000-0002-2410-6470 aut Shum, Perry-Ping aut Enthalten in PhotoniX [London] : SpringerOpen, 2020 4(2023), 1 vom: 03. Juli (DE-627)1694891844 (DE-600)3017005-9 2662-1991 nnns volume:4 year:2023 number:1 day:03 month:07 https://dx.doi.org/10.1186/s43074-023-00099-z kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 4 2023 1 03 07
language	English
source	Enthalten in PhotoniX 4(2023), 1 vom: 03. Juli volume:4 year:2023 number:1 day:03 month:07
sourceStr	Enthalten in PhotoniX 4(2023), 1 vom: 03. Juli volume:4 year:2023 number:1 day:03 month:07
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topic_facet	Blood pressure Optical fiber sensor Smartwatch
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authorswithroles_txt_mv	Li, Liangye @@aut@@ Sheng, Shunfeng @@aut@@ Liu, Yunfei @@aut@@ Wen, Jianpei @@aut@@ Song, Changying @@aut@@ Chen, Zhipeng @@aut@@ Xu, Wangyang @@aut@@ Zhang, Zhi @@aut@@ Fan, Wei @@aut@@ Chen, Chen @@aut@@ Sun, Qizhen @@aut@@ Shum, Perry-Ping @@aut@@
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author	Li, Liangye
spellingShingle	Li, Liangye misc Blood pressure misc Optical fiber sensor misc Smartwatch Automatic and continuous blood pressure monitoring via an optical-fiber-sensor-assisted smartwatch
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topic_title	Automatic and continuous blood pressure monitoring via an optical-fiber-sensor-assisted smartwatch Blood pressure (dpeaa)DE-He213 Optical fiber sensor (dpeaa)DE-He213 Smartwatch (dpeaa)DE-He213
topic	misc Blood pressure misc Optical fiber sensor misc Smartwatch
topic_unstemmed	misc Blood pressure misc Optical fiber sensor misc Smartwatch
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title	Automatic and continuous blood pressure monitoring via an optical-fiber-sensor-assisted smartwatch
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title_full	Automatic and continuous blood pressure monitoring via an optical-fiber-sensor-assisted smartwatch
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author_browse	Li, Liangye Sheng, Shunfeng Liu, Yunfei Wen, Jianpei Song, Changying Chen, Zhipeng Xu, Wangyang Zhang, Zhi Fan, Wei Chen, Chen Sun, Qizhen Shum, Perry-Ping
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title_sort	automatic and continuous blood pressure monitoring via an optical-fiber-sensor-assisted smartwatch
title_auth	Automatic and continuous blood pressure monitoring via an optical-fiber-sensor-assisted smartwatch
abstract	Abstract Automatic and continuous blood pressure monitoring is important for preventing cardiovascular diseases such as hypertension. The evaluation of medication effects and the diagnosis of clinical hypertension can both benefit from continuous monitoring. The current generation of wearable blood pressure monitors frequently encounters limitations with inadequate portability, electrical safety, limited accuracy, and precise position alignment. Here, we present an optical fiber sensor-assisted smartwatch for precise continuous blood pressure monitoring. A fiber adapter and a liquid capsule were used in the building of the blood pressure smartwatch based on an optical fiber sensor. The fiber adapter was used to detect the pulse wave signals, and the liquid capsule was used to expand the sensing area as well as the conformability to the body. The sensor holds a sensitivity of -213µw/kPa, a response time of 5 ms, and high reproducibility with 70,000 cycles. With the assistance of pulse wave signal feature extraction and a machine learning algorithm, the smartwatch can continuously and precisely monitor blood pressure. A wearable smartwatch featuring a signal processing chip, a Bluetooth transmission module, and a specially designed cellphone APP was also created for active health management. The performance in comparison with commercial sphygmomanometer reference measurements shows that the systolic pressure and diastolic pressure errors are -0.35 ± 4.68 mmHg and -2.54 ± 4.07 mmHg, respectively. These values are within the acceptable ranges for Grade A according to the British Hypertension Society (BHS) and the Association for the Advancement of Medical Instrumentation (AAMI). The smartwatch assisted with an optical fiber is expected to offer a practical paradigm in digital health. © The Author(s) 2023
abstractGer	Abstract Automatic and continuous blood pressure monitoring is important for preventing cardiovascular diseases such as hypertension. The evaluation of medication effects and the diagnosis of clinical hypertension can both benefit from continuous monitoring. The current generation of wearable blood pressure monitors frequently encounters limitations with inadequate portability, electrical safety, limited accuracy, and precise position alignment. Here, we present an optical fiber sensor-assisted smartwatch for precise continuous blood pressure monitoring. A fiber adapter and a liquid capsule were used in the building of the blood pressure smartwatch based on an optical fiber sensor. The fiber adapter was used to detect the pulse wave signals, and the liquid capsule was used to expand the sensing area as well as the conformability to the body. The sensor holds a sensitivity of -213µw/kPa, a response time of 5 ms, and high reproducibility with 70,000 cycles. With the assistance of pulse wave signal feature extraction and a machine learning algorithm, the smartwatch can continuously and precisely monitor blood pressure. A wearable smartwatch featuring a signal processing chip, a Bluetooth transmission module, and a specially designed cellphone APP was also created for active health management. The performance in comparison with commercial sphygmomanometer reference measurements shows that the systolic pressure and diastolic pressure errors are -0.35 ± 4.68 mmHg and -2.54 ± 4.07 mmHg, respectively. These values are within the acceptable ranges for Grade A according to the British Hypertension Society (BHS) and the Association for the Advancement of Medical Instrumentation (AAMI). The smartwatch assisted with an optical fiber is expected to offer a practical paradigm in digital health. © The Author(s) 2023
abstract_unstemmed	Abstract Automatic and continuous blood pressure monitoring is important for preventing cardiovascular diseases such as hypertension. The evaluation of medication effects and the diagnosis of clinical hypertension can both benefit from continuous monitoring. The current generation of wearable blood pressure monitors frequently encounters limitations with inadequate portability, electrical safety, limited accuracy, and precise position alignment. Here, we present an optical fiber sensor-assisted smartwatch for precise continuous blood pressure monitoring. A fiber adapter and a liquid capsule were used in the building of the blood pressure smartwatch based on an optical fiber sensor. The fiber adapter was used to detect the pulse wave signals, and the liquid capsule was used to expand the sensing area as well as the conformability to the body. The sensor holds a sensitivity of -213µw/kPa, a response time of 5 ms, and high reproducibility with 70,000 cycles. With the assistance of pulse wave signal feature extraction and a machine learning algorithm, the smartwatch can continuously and precisely monitor blood pressure. A wearable smartwatch featuring a signal processing chip, a Bluetooth transmission module, and a specially designed cellphone APP was also created for active health management. The performance in comparison with commercial sphygmomanometer reference measurements shows that the systolic pressure and diastolic pressure errors are -0.35 ± 4.68 mmHg and -2.54 ± 4.07 mmHg, respectively. These values are within the acceptable ranges for Grade A according to the British Hypertension Society (BHS) and the Association for the Advancement of Medical Instrumentation (AAMI). The smartwatch assisted with an optical fiber is expected to offer a practical paradigm in digital health. © The Author(s) 2023
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title_short	Automatic and continuous blood pressure monitoring via an optical-fiber-sensor-assisted smartwatch
url	https://dx.doi.org/10.1186/s43074-023-00099-z
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author2	Sheng, Shunfeng Liu, Yunfei Wen, Jianpei Song, Changying Chen, Zhipeng Xu, Wangyang Zhang, Zhi Fan, Wei Chen, Chen Sun, Qizhen Shum, Perry-Ping
author2Str	Sheng, Shunfeng Liu, Yunfei Wen, Jianpei Song, Changying Chen, Zhipeng Xu, Wangyang Zhang, Zhi Fan, Wei Chen, Chen Sun, Qizhen Shum, Perry-Ping
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up_date	2024-07-04T01:27:43.224Z
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A wearable smartwatch featuring a signal processing chip, a Bluetooth transmission module, and a specially designed cellphone APP was also created for active health management. The performance in comparison with commercial sphygmomanometer reference measurements shows that the systolic pressure and diastolic pressure errors are -0.35 ± 4.68 mmHg and -2.54 ± 4.07 mmHg, respectively. These values are within the acceptable ranges for Grade A according to the British Hypertension Society (BHS) and the Association for the Advancement of Medical Instrumentation (AAMI). 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Automatic and continuous blood pressure monitoring via an optical-fiber-sensor-assisted smartwatch

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