Fiber optic analyte sensor with integrated in situ total pressure correction
US9316554B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2014 |
| Grant date | Apr 19, 2016 |
| Priority date | — |
| Expiry date | Dec 23, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/207497
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fiber optic analyte sensing needle employing an analyte-partial-pressure-sensitive photoluminescent probe, characterized by (i) a void volume channel extending axially along the length of the lumen between the inner surface of the tube and the outer surface of the fiber optic filament, and (ii) a total pressure sensor in pressure communication with the distal tip of the needle via the void volume channel, whereby total pressure of a volume sampled by the sensing needle can be routinely measured and used in pressure compensation of analyte-concentration values calculated from the analyte-partial-pressure readings taken from the analyte-partial-pressure-sensitive photoluminescent probe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.