Optochemical sensor unit and a method for the qualitative and/or quantitative determination of an analyte in a measuring medium with the sensor unit
US10866192B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 16, 2019 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Oct 16, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12138
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optochemical sensor unit including: an optical waveguide; a transmitting unit for emitting a first transmission signal for exciting a luminophore; a receiving unit for receiving a received signal comprising a signal component emitted by the excited luminophore; a measuring chamber for receiving a fluid, wherein the fluid includes magnetic microspheres; a membrane arranged between the measuring chamber and a measuring medium for exchanging an analyte between the measuring medium and the fluid in the measuring chamber, wherein the measuring diaphragm is impermeable to the magnetic microspheres; and an electromagnet for attracting magnetic microspheres to a sensor membrane with a fluid-contacting surface and/or to a fluid-contacting surface of the optical waveguide, or to a surface of a transparent substrate layer of the optical sensor unit that is connected to the optical waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.