公开(公告)号：US20240374178A1

公开(公告)日：2024-11-14

申请号：US18255747

申请日：2022-07-29

Applicant: Google LLC

Inventor： Vahe Tshitoyan ,  Cheongyuen William Tsang ,  Rafeed A. Chaudhury ,  Kelly Elizabeth Dobson

IPC: A61B5/145 ,  A61B5/1455 ,  H01S5/40 ,  H01S5/42

Abstract: The present disclosure provides methods, systems, and devices for non-invasively measuring a level of an analyte in a user using Stimulated Raman Scattering. A device can include a Raman pump source that emits pump light toward a tissue at a pump wavelength and a Stokes source that emits Stokes light toward the tissue at one or more Stokes wavelengths. The device can further include one or more mirrors and lenses. The device can further include a beam controller that controls the one or more mirrors and the one or more lenses to target the pump light emitted by the Raman pump source and the Stokes light emitted by the Stokes source at an optimal target location. The device can further include a photodetector that measures light that emanates from the tissue. The device can further include a processor that estimates the level of the analyte in the user.

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.