APPARATUS AND METHOD FOR MEASURING BIO-INFORMATION

    公开(公告)号:US20190387985A1

    公开(公告)日:2019-12-26

    申请号:US16393432

    申请日:2019-04-24

    IPC分类号: A61B5/021 A61B5/00

    摘要: Provided are an apparatus and method for measuring bio-information. The apparatus for measuring bio-information includes: a pulse wave sensor configured to emit light of multiple wavelengths onto an object, and detect the light to obtain multi-wavelength pulse wave signals when the light is reflected or scattered from the object; and a processor configured to: obtain a conversion signal that indicates a contact pressure between the object and the pulse wave sensor, based on the multi-wavelength pulse wave signals, obtain an oscillometric envelope based on the multi-wavelength pulse wave signals and the conversion signal, and obtain bio-information based on the oscillometric envelope.

    APPARATUS AND METHOD FOR ESTIMATING BLOOD PRESSURE

    公开(公告)号:US20230070636A1

    公开(公告)日:2023-03-09

    申请号:US17541336

    申请日:2021-12-03

    IPC分类号: A61B5/021 A61B5/022 A61B5/00

    摘要: An apparatus for estimating blood pressure is provided. The apparatus may include a pulse wave sensor configured to measure from an object, a plurality of pulse wave signals having different wavelengths, a force sensor configured to measure a contact force applied by the object to the pulse wave sensor, and a processor configured to extract, from the plurality of pulse wave signals, at least one similarity feature indicating a similarity between the plurality of pulse wave signals, and estimate the blood pressure based on the similarity and the contact force that is measured at a point in time at which the at least one similarity feature is extracted.

    BLOOD PRESSURE MEASURING APPARATUS AND BLOOD PRESSURE MEASURING METHOD

    公开(公告)号:US20220330841A1

    公开(公告)日:2022-10-20

    申请号:US17846613

    申请日:2022-06-22

    IPC分类号: A61B5/021 A61B5/0225

    摘要: A blood pressure measuring apparatus according to an aspect of the present invention includes: a touch sensor; a pulse wave measurer configured to measure pulse waves from a user; a contact force measurer including at least three force sensors and configured to measure a contact force between the touch sensor and the user by using the at least three force sensors; a contact area measurer configured to measure a contact area between the user and the touch sensor; and a processor configured to determine a vertical direction error, which indicates a degree of deviation of a direction of force, applied by the user to press the touch sensor, from a vertical direction to a surface of the touch sensor based on sensor values sensed by the at least three force sensors, and estimate blood pressure according to a determination result of the vertical direction error based on the pulse waves, the contact force, and the contact area.

    BLOOD PRESSURE MEASURING APPARATUS AND BLOOD PRESSURE MEASURING METHOD

    公开(公告)号:US20200146568A1

    公开(公告)日:2020-05-14

    申请号:US16676647

    申请日:2019-11-07

    摘要: A blood pressure measuring apparatus includes a pulse wave sensor configured to detect a pulse wave signal of an object, a pressure sensor configured to detect a contact pressure signal corresponding to a contact pressure between the object and the pulse wave sensor, and a processor configured to generate a pulse wave image based on the detected pulse wave signal of the object, generate a contact pressure image based on the detected contact pressure signal corresponding to the contact pressure between the object and the pressure sensor, and estimate a blood pressure of the object based on the generated pulse wave image, the generated contact pressure image, and a blood pressure estimation model.