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1.发明公开公开(公告)号：US20240122517A1
公开(公告)日：2024-04-18
申请号：US18536661
申请日：2023-12-12
发明人： Yasuhiro KAWABATA , Kenji FUJII , Naomi MATSUMURA , Akito ITO , Yuki SAKAGUCHI , Reiji FUJITA , Daizo OKA
CPC分类号： A61B5/282 , A61B5/02125 , A61B5/022 , A61B5/256 , A61B5/319 , A61B5/6824 , A61B5/6831 , A61B2562/0204 , A61B2562/0247 , A61B2562/043 , A61B2562/063
摘要： A biological information measurement device adapted to be attached on an upper arm of a human body and used thereon includes a belt portion adapted to be wound around the upper arm, electrocardiographic measurement means including a plurality of electrodes for detecting an electrocardiographic signal of the human body, pulse wave measurement means including a pulse wave sensor for detecting a pulse wave of the human body, heartbeat vibration measurement means including a vibration sensor for detecting vibration caused by beating of a heart of the human body, and an analysis processing unit configured to calculate a pre-ejection time and a pulse transit time of the heart based on time series data of the electrocardiographic signal, time series data of the pulse wave, and time series data of the vibration caused by the beating of the heart.
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公开(公告)号：US20200205678A1
公开(公告)日：2020-07-02
申请号：US16813904
申请日：2020-03-10
IPC分类号： A61B5/021 , A61B5/00 , A61B5/022 , A61B5/044 , A61B5/0295
摘要： A blood pressure estimation device includes a display unit (10), a belt portion (20), a first contact electrode (61) and a second contact electrode (62) for detecting an electrocardiographic waveform, and a pulse wave sensor. The display unit (10) displays a blood pressure estimation result. The belt portion (20) is connected to the display unit (10) and surrounds a target measurement site. The pulse wave sensor includes a pulse wave detection unit (40E) that detects a pulse wave of an artery (91) passing through the target measurement site. The first contact electrode (61) and the pulse wave detection unit (40E) are provided on an inner circumferential portion (20a) of the belt portion (20). The second contact electrode (62) is provided on an outer circumferential portion (20b) of the belt portion (20). The first contact electrode (61) and the pulse wave detection unit (40E) are provided in a position where the first contact electrode (61) and the pulse wave detection unit (40E) are to be pressed against the target measurement site when the second contact electrode (62) is pressed from an outer circumferential side of the belt portion (20).
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3.发明公开公开(公告)号：US20240188839A1
公开(公告)日：2024-06-13
申请号：US18442592
申请日：2024-02-15
发明人： Akito ITO , Yasuhiro KAWABATA , Kenji FUJII , Naomi MATSUMURA , Yuki SAKAGUCHI
CPC分类号： A61B5/02125 , A61B5/02133 , A61B5/02208 , A61B5/28 , A61B5/7246 , A61B2560/0223 , A61B2562/0204
摘要： Highly accurate blood pressure estimation based on a circulatory organ-related feature amount can be performed. A blood pressure estimation device includes a blood pressure estimation unit configured to acquire a circulatory organ-related feature amount that is a feature amount related to a state of a circulatory organ and changes in accordance with pulsation of a heart and to calculate a blood pressure value from the circulatory organ-related feature amount, and a reference blood pressure measurement unit including a sound wave detection unit configured to detect Korotkoff sound generated in accordance with the pulsation, the reference blood pressure measurement unit being configured to measure a reference blood pressure value by using the Korotkoff sound. The blood pressure estimation unit includes a feature amount acquisition unit configured to acquire the circulatory organ-related feature amount.
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公开(公告)号：US20220409135A1
公开(公告)日：2022-12-29
申请号：US17929523
申请日：2022-09-02
发明人： Reiji FUJITA , Yasuhiro KAWABATA , Kenji FUJII , Naomi MATSUMURA , Akito ITO , Yuki SAKAGUCHI
摘要： An electrode-equipped band includes a first band section and a second band section extending along a longitudinal direction. The second band section includes a first stretchable section, an electrode, a second stretchable section, a ring member, a fold-back section, and a joining section. The first stretchable section has first stretchability along the longitudinal direction. The electrode is provided on a first surface of the first stretchable section. The second stretchable section overlaps with the first stretchable section on a side of a second surface of the first stretchable section, and has second stretchability that allows greater stretch along the longitudinal direction than the first stretchable section. The ring member is provided at a position corresponding to a band end along the longitudinal direction of the second band section, and may be connected to the first band section.
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5.发明申请公开(公告)号：US20220386882A1
公开(公告)日：2022-12-08
申请号：US17819822
申请日：2022-08-15
发明人： Naomi MATSUMURA , Yasuhiro KAWABATA , Kenji FUJII , Reiji FUJITA , Akito ITO , Yuki SAKAGUCHI
IPC分类号： A61B5/0245 , A61B5/00
摘要： While power consumption is suppressed, biological information is measured without fail when a condition of a subject changes. An aspect of the present invention is configured to acquire a biological signal related to a beat of a heart of the subject from a biometric sensor, detect a feature of the biological signal from the biological signal acquired, determine an abnormal change in the feature based on the feature detected and first threshold information set in advance, set an operation mode of the biometric sensor to a continuous operation mode when the abnormal change in the feature is determined, and set the operation mode of the biometric sensor to an intermittent operation mode in a period without the abnormal change.
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公开(公告)号：US20210127996A1
公开(公告)日：2021-05-06
申请号：US17148921
申请日：2021-01-14
IPC分类号： A61B5/022 , A61B5/0235
摘要： A blood pressure measurement device that measures blood pressure, and relates to a cuff unit.
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公开(公告)号：US20210121114A1
公开(公告)日：2021-04-29
申请号：US17139380
申请日：2020-12-31
发明人： Reiji FUJITA , Yasuhiro KAWABATA , Kenji FUJII , Naomi MATSUMURA , Akito ITO
摘要： A belt and electrocardiographic measurement device, the belt including a belt body windable around an upper arm in a circumferential direction of the upper arm, and an electrode array including a plurality of electrodes fixed to an inner surface of the belt body and arranged side by side in a direction, which is a longitudinal direction of the belt body, the plurality of electrodes being more than N+2 in number, where N is a number of electrodes required for obtaining electrocardiographic information, the electrodes, counted from a first electrode located at a first end in the direction (X) by counting including the first electrode, to the (N+1)th electrode in the direction (X) being arranged at equal intervals that are predetermined intervals, and intervals between each of the (N+1)th and subsequent electrodes being greater than the predetermined interval.
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公开(公告)号：US20210000353A1
公开(公告)日：2021-01-07
申请号：US17029323
申请日：2020-09-23
发明人： Kenji FUJII , Yasuhiro KAWABATA , Naomi MATSUMURA , Reiji FUJITA , Akito ITO
摘要： A blood pressure measurement device according to one aspect includes: a blood pressure measurement unit configured to measure blood pressure at a measurement target site of a measurement target subject; a pulse transit time measurement unit configured to measure a pulse transit time at the measurement target site of the measurement target subject; a blood pressure value calculation unit configured to calculate a blood pressure value, on the basis of measurement results of the pulse transit time and a relational expression representing a correlation between the pulse transit time and the blood pressure; a posture instruction unit configured to instruct the measurement target subject to assume a plurality of postures in which height positions of the measurement target site with respect to a heart of the measurement target subject are different from each other; and a calibration unit configured to calibrate the relational expression, on the basis of the blood pressure measured by the blood pressure measurement unit and the pulse transit time measured by the pulse transit time measurement unit, for each of the plurality of postures.
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公开(公告)号：US20190290141A1
公开(公告)日：2019-09-26
申请号：US16441066
申请日：2019-06-14
发明人： Yasuhiro KAWABATA , Kentaro MORI , Naomi MATSUMURA
摘要： A sphygmomanometer includes: a first fluid bag that is to be worn around a measurement site; first and second pulse wave sensors that are mounted on first fluid bag, and detect pulse waves of respective opposing areas of an artery running along measurement site; pressing parts that locally presses areas corresponding to first and second pulse wave sensors from an outer circumference side, opposite of an inner circumference side of first fluid bag where first and second pulse wave sensors are mounted. Blood pressure is calculated based on pulse transit time obtained from outputs from first and second pulse wave sensors, with first fluid bag in an unpressurized state and first and second pulse wave sensors being pressed by a pressing force of the pressing part. Blood pressure is calculated, for oscillometric blood pressure measurement, based on pressure within first fluid bag with first fluid bag in a pressurized state.
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公开(公告)号：US20240268766A1
公开(公告)日：2024-08-15
申请号：US18442775
申请日：2024-02-15
发明人： Yasuhiro KAWABATA , Kenji FUJII , Naomi MATSUMURA , Akito ITO , Yuki SAKAGUCHI , Takahide TANAKA
IPC分类号： A61B5/00 , A61B5/0205 , A61B5/021 , A61B5/022 , A61B5/0245 , A61B5/282
CPC分类号： A61B5/7246 , A61B5/0205 , A61B5/282 , A61B5/6824 , A61B5/6831 , A61B5/742 , A61B5/02125 , A61B5/02141 , A61B5/02225 , A61B5/0245 , A61B2560/0228 , A61B2560/0238 , A61B2560/0468 , A61B2562/0247 , A61B2562/043
摘要： A blood-pressure-measuring device includes: a feature amount acquisition unit that acquires one or more feature amounts related to estimation of a blood pressure value of a human body; a blood pressure value calculation unit that calculates an estimated blood pressure value based on the feature amount; an actually measured blood pressure value acquisition unit that acquires an actually measured blood pressure value measured by a method different from the calculation by the blood pressure value calculation unit; a calibration determination unit that determines whether or not the feature amount acquired by the feature amount acquisition unit deviates from a predetermined reference value, the calibration determination unit determining to acquire the actually measured blood pressure value when the calibration determination unit has determined that the feature amount deviates; and a calibration processing unit that estimates blood pressure value.
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