Wearable Device And Method For Non-Invasive Assessment Of Glymphatic Flow

    公开(公告)号:US20240225522A9

    公开(公告)日:2024-07-11

    申请号:US18185365

    申请日:2023-03-16

    IPC分类号: A61B5/00 A61M21/02 A61N1/05

    摘要: A computer-implemented method and system includes a head-mounted wearable device with two current electrodes that provide input alternating currents over a range of frequencies to a subject during at least one intervention. The head-mounted wearable device includes at least two sense electrodes that collect voltage difference measurements in response to the input alternating currents. A measurement validation module applies a Hilbert transform or a Kramer-Kronig test to the voltage difference measurements to generate validated time-series impedance spectra. A cranial fluid dynamics module fits the validated time-series impedance spectra to an electrical circuit model to determine a glymphatic flow response to the at least one intervention.

    Non-Invasive Topographic Localization Of Glymphatic Flow

    公开(公告)号:US20240130664A1

    公开(公告)日:2024-04-25

    申请号:US18492775

    申请日:2023-10-22

    IPC分类号: A61B5/00 A61B5/0536 A61B5/256

    摘要: A computer-implemented method and system includes accessing neurophysiological and neurovascular data recorded during sleep. A device mounted on a subject's head during sleep can gather neurovascular data by measuring transcranial impedance. The device can be in the form of a single band, multiple bands, or a headcap that are worn on the subject's head. Electrodes located along an inner surface of the wearable device contact the subject's head and measure transcranial impedance. Transcranial impedance measurements are gathered from multiple locations on the subject's head and over multiple frequencies to obtain a more complete assessment of glymphatic flow.

    Wearable device and method for non-invasive assessment of glymphatic flow

    公开(公告)号:US12004874B2

    公开(公告)日:2024-06-11

    申请号:US18185365

    申请日:2023-03-16

    IPC分类号: A61M21/02 A61B5/00 A61N1/05

    摘要: A computer-implemented method and system includes a head-mounted wearable device with two current electrodes that provide input alternating currents over a range of frequencies to a subject during at least one intervention. The head-mounted wearable device includes at least two sense electrodes that collect voltage difference measurements in response to the input alternating currents. A measurement validation module applies a Hilbert transform or a Kramer-Kronig test to the voltage difference measurements to generate validated time-series impedance spectra. A cranial fluid dynamics module fits the validated time-series impedance spectra to an electrical circuit model to determine a glymphatic flow response to the at least one intervention.

    Non-Invasive Topographic Localization Of Glymphatic Flow

    公开(公告)号:US20240225523A9

    公开(公告)日:2024-07-11

    申请号:US18492775

    申请日:2023-10-23

    IPC分类号: A61B5/00 A61B5/0536 A61B5/256

    摘要: A computer-implemented method and system includes accessing neurophysiological and neurovascular data recorded during sleep. A device mounted on a subject's head during sleep can gather neurovascular data by measuring transcranial impedance. The device can be in the form of a single band, multiple bands, or a headcap that are worn on the subject's head. Electrodes located along an inner surface of the wearable device contact the subject's head and measure transcranial impedance. Transcranial impedance measurements are gathered from multiple locations on the subject's head and over multiple frequencies to obtain a more complete assessment of glymphatic flow.

    Wearable Device And Method For Non-Invasive Assessment Of Glymphatic Flow

    公开(公告)号:US20240130680A1

    公开(公告)日:2024-04-25

    申请号:US18185365

    申请日:2023-03-15

    IPC分类号: A61B5/00 A61M21/02 A61N1/05

    摘要: A computer-implemented method and system includes a head-mounted wearable device with two current electrodes that provide input alternating currents over a range of frequencies to a subject during at least one intervention. The head-mounted wearable device includes at least two sense electrodes that collect voltage difference measurements in response to the input alternating currents. A measurement validation module applies a Hilbert transform or a Kramer-Kronig test to the voltage difference measurements to generate validated time-series impedance spectra. A cranial fluid dynamics module fits the validated time-series impedance spectra to an electrical circuit model to determine a glymphatic flow response to the at least one intervention.