Optical based glucose sensor
US12186076B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2021 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Sep 24, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/686
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An example medical device includes an optical sensor, processing circuitry, an antenna, and a power source. The optical sensor includes a light source; a reference optical beacon having a first fluorophore that emits a first fluorescence proportional to a first concentration of a substance proximate the beacon; a test optical beacon having a reagent substrate that reacts with an analyte to produce the substance and a second fluorophore that emits a second fluorescence proportional to a second concentration of the substance proximate the test beacon; and a photodetector to detect the first and second fluorescence. The processing circuitry determines a difference between the first and second fluorescence, which is indicative of the concentration of the analyte. The antenna and power source enable the medical device to operate completely within a biological system for continuous analyte monitoring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.