公开(公告)号：US20240423512A1

公开(公告)日：2024-12-26

申请号：US18700512

申请日：2022-10-11

Applicant: Google LLC

Inventor： Christopher David Workman ,  Vahe Tshitoyan ,  Altaf Khetani ,  Cheongyuen William Tsang ,  Kelly Elizabeth Dobson

IPC: A61B5/145 ,  A61B5/1455 ,  G01N21/65 ,  G01N33/66

Abstract: The present disclosure provides computer-implemented methods, systems, and devices for non-invasively measuring a level of an analyte in a user using Stimulated Raman Scattering. A user computing device includes a Raman pump source that emits pump light toward a skin surface of the user at a pump wavelength. The device includes a Stokes source that emits Stokes light toward the skin surface at a plurality of Stokes wavelengths within a window of Raman measurement wavelengths. The Stokes light comprises a plurality of narrowband emissions at a respective plurality of center wavelengths ranging across the window of Raman measurement wavelengths. The device includes a photodetector that measures light that emanates from the skin surface. The device includes a processor that processes the measured light to provide an estimated analyte level of the user.