ANALYTE DETECTION APPARATUS AND METHOD OF DETECTING AN ANALYTE

    公开(公告)号:US20230080810A1

    公开(公告)日:2023-03-16

    申请号:US17990139

    申请日:2022-11-18

    Abstract: An analyte detection apparatus includes a radiation source for irradiating a sample and a receiver to receive an optical Raman spectrum of radiation transmitted back from the sample, the spectrum including one or more parts of significance to an analyte to be detected and one or more parts not of significance to an analyte to be detected. The receiver includes different types of analysis device each arranged to receive a selected part of the spectrum. The different types of analysis device include at least one analysis device having high resolution and/or high signal to noise ratio for detecting a part of the spectrum of significance to the analyte to be detected and at least one second type of analysis device which provides lower resolution and/or lower signal-to-noise ratio, for detecting a part of the spectrum not of significance to the analyte to be detected.

    Analyte detection apparatus and method of detecting an analyte

    公开(公告)号:US12241784B2

    公开(公告)日:2025-03-04

    申请号:US17990139

    申请日:2022-11-18

    Abstract: An analyte detection apparatus includes a radiation source for irradiating a sample and a receiver to receive an optical Raman spectrum of radiation transmitted back from the sample, the spectrum including one or more parts of significance to an analyte to be detected and one or more parts not of significance to an analyte to be detected. The receiver includes different types of analysis device each arranged to receive a selected part of the spectrum. The different types of analysis device include at least one analysis device having high resolution and/or high signal to noise ratio for detecting a part of the spectrum of significance to the analyte to be detected and at least one second type of analysis device which provides lower resolution and/or lower signal-to-noise ratio, for detecting a part of the spectrum not of significance to the analyte to be detected.

    Method and apparatus for transdermal in vivo measurement by Raman spectroscopy

    公开(公告)号:US10674919B2

    公开(公告)日:2020-06-09

    申请号:US15508580

    申请日:2015-08-24

    Abstract: The use of a transdermal Raman spectrum to measure glucose or other substance concentration can give an inaccurate result if the Raman signals originate at a wrong skin depth. To predict whether a spectrum of Raman signals received transdermally in a confocal detector apparatus and having at least one component expected to have an intensity representing the concentration of glucose or another skin component at a point of origin of the Raman signals below the surface of the skin will accurately represent the concentration, peaks in the spectrum at 883/4 cm−1 and 894 cm−1 are measured to determine whether the Raman signals originate primarily within the stratum corneum so that the spectrum will be less likely to represent the concentration accurately or originate primarily below the stratum corneum so that the spectrum will be more likely to represent the concentration accurately.

    CALIBRATION METHOD AND SYSTEM
    5.
    发明申请

    公开(公告)号:US20250057451A1

    公开(公告)日:2025-02-20

    申请号:US18712567

    申请日:2022-10-12

    Abstract: A system and method of calibrating a model used in a device for non-invasive in vivo measurement of an analyte concentration using Raman spectroscopy, the device including an optical source for providing an optical signal and an optical detector to receive a Raman scattered optical output, the method including: in response to the laser source being directed to a user's skin gathering Raman scattered radiation from the user's skin and based on that, calibrating the model based on reference data and the received Raman spectra over an extended period of days, such as 10 days or more.

    METHOD AND APPARATUS FOR TRANSDERMAL IN VIVO MEASUREMENT BY RAMAN SPECTROSCOPY

    公开(公告)号:US20170273564A1

    公开(公告)日:2017-09-28

    申请号:US15508580

    申请日:2015-08-24

    Abstract: The use of a transdermal Raman spectrum to measure glucose or other substance concentration can give an inaccurate result if the Raman signals originate at a wrong skin depth. To predict whether a spectrum of Raman signals received transdermally in a confocal detector apparatus and having at least one component expected to have an intensity representing the concentration of glucose or another skin component at a point of origin of the Raman signals below the surface of the skin will accurately represent the concentration, peaks in the spectrum at 883/4 cm−1 and 894 cm−1 are measured to determine whether the Raman signals originate primarily within the stratum corneum so that the spectrum will be less likely to represent the concentration accurately or originate primarily below the stratum corneum so that the spectrum will be more likely to represent the concentration accurately.

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