Optical sensor configuration for ratiometric correction of glucose measurement
US8700115B2 · kind B2 · utility
8Cited by
306References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 2013 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | May 15, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/7786
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments of the invention are directed to an optical sensor for detecting glucose. The sensor comprises a chemical indicator system disposed within a gap between the distal end of an optical fiber and an atraumatic tip portion, wherein the optical fiber and atraumatic tip portion are coupled by a coupling member, such as a rod or hypotube or cage that traverses the gap. The sensor further comprises a means for generating and detecting an optical reference signal unrelated to the glucose, such that ratiometric correction of glucose measurements for artifacts in the optical system is enabled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.