SYSTEM AND METHOD FOR MEASURING BLOOD PRESSURE

    公开(公告)号:US20250025058A1

    公开(公告)日:2025-01-23

    申请号:US18778893

    申请日:2024-07-19

    Abstract: A system and method for measuring blood pressure. In some embodiments, a system includes a speckleplethysmography sensor and a processing circuit. The system may be configured: to perform, using the speckleplethysmography sensor, blood flow measurements of a subject, and measurements of cuff pressure of a cuff worn by the subject, while the cuff pressure varies; and to calculate, from the blood flow measurements and the cuff pressure measurements, a first blood pressure.

    OPTICAL SENSOR MODULE
    3.
    发明公开

    公开(公告)号:US20240298907A1

    公开(公告)日:2024-09-12

    申请号:US18667608

    申请日:2024-05-17

    CPC classification number: A61B5/02433 A61B5/02438 A61B5/681

    Abstract: A wearable device includes a first optical sensor module, the first optical sensor module including: an image sensor configured to receive light from biological tissue; a photodiode configured to receive light from the tissue; a light source comprising a laser and being configured to illuminate, through the tissue, each of the image sensor and the photodiode, a distance between the image sensor and the photodiode being less than 50% of the distance between the image sensor and the light source; at least one processing circuit configured to process first data corresponding to a first light signal received by the image sensor from the light source to generate a speckleplethysmography (SPG) measurement, and to process second data corresponding to a second light signal received by the photodiode from the light source to generate a photoplethysmography (PPG) measurement.

    OPTICAL SPECKLE RECEIVER
    5.
    发明申请

    公开(公告)号:US20230087295A1

    公开(公告)日:2023-03-23

    申请号:US17822419

    申请日:2022-08-25

    Abstract: An optical speckle receiver for receiving a speckle signal from a sample, the optical speckle receiver comprising an optical detector and an aperture and/or lens array. The aperture and array respectively comprise a plurality of apertures or lenses and is located between the sample and the optical detector such that the received speckle pattern is obtained from multiple discrete sample locations.

    PHOTONIC INTEGRATED CIRCUIT
    6.
    发明申请

    公开(公告)号:US20230039055A1

    公开(公告)日:2023-02-09

    申请号:US17814787

    申请日:2022-07-25

    Abstract: A photonic integrated device comprising: a photonic integrated chip (PIC) adapted to investigate blood flow at a portion of tissue of a user, said PIC comprising: a laser having an optical output, or waveguide for guiding an optical output from an external laser, the optical output being split into a first optical component and a second optical component; wherein the first optical component is arranged to be transmitted to and generate speckle at the portion of tissue of the user; the photonic integrated device further comprising: one or more detectors, each detector configured to receive the speckle generated by the first optical component at the portion of tissue; and one or more optical splitters optically coupling the second optical component to one or more respective input(s) of the one or more detectors; wherein the photonic integrated device is further adapted to measure interference at the one or more detectors between a sample arm formed by the first optical component and a reference arm formed by the second optical component.

    REPOSITIONABLE VOLAR MODULE
    7.
    发明公开

    公开(公告)号:US20240108289A1

    公开(公告)日:2024-04-04

    申请号:US18480492

    申请日:2023-10-03

    CPC classification number: A61B5/7221 A61B5/7235

    Abstract: A system for sensing one or more biometrics. In some embodiments, the system includes a first wearable instrument; a second wearable instrument including a biometric sensor; a conductive connection between the first wearable instrument and the second wearable instrument; and a strap, sized and dimensioned to be disposed about a wrist. The system may be capable of securing the first wearable instrument to the strap, of securing the second wearable instrument to the strap at a first position relative to the first wearable instrument, and of securing the second wearable instrument to the strap at a second position relative to the first wearable instrument.

    OPTICAL SENSOR MODULE
    9.
    发明公开

    公开(公告)号:US20230148886A1

    公开(公告)日:2023-05-18

    申请号:US17934502

    申请日:2022-09-22

    CPC classification number: A61B5/02433 A61B5/681

    Abstract: An optical sensor module for measuring both speckleplethysmography (SPG) and photoplethysmography (PPG) signals at human or animal tissue, the optical sensor module comprising: a first light source, for illuminating the tissue for use with SPG measurements, the first light source comprising a laser; a second light source, for illuminating the tissue for use with PPG measurements; and one or more optical sensor(s) for receiving light from the illuminated tissue.

    OPTICAL SENSOR MODULE
    10.
    发明公开

    公开(公告)号:US20230148885A1

    公开(公告)日:2023-05-18

    申请号:US17711974

    申请日:2022-04-01

    CPC classification number: A61B5/02433 A61B5/681

    Abstract: An optical sensor module for measuring both speckleplethysmography (SPG) and photoplethysmography (PPG) signals at human or animal tissue, the optical sensor module comprising:a first light source, for illuminating the tissue for use with SPG measurements, the first light source comprising a laser; a second light source, for illuminating the tissue for use with PPG measurements; and one or more optical sensor(s) for receiving light from the illuminated tissue.

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