Paper sensor
US9586204B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2015 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Jul 15, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2300/165
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure proposes a design of a biomedical paper sensor which can determine the concentration of biological materials in fluids such as blood, urine, and saliva. The sensor contains a plurality of axially radiating test zones, each test zone separated from other test zones by wax ink barriers formed by a process that produces thin walls. Each test zone can contain a unique test reagent, or a unique concentration of a test reagent, and can also be identified by printed text. The region of the device outside of the test zone area is printed with a uniform reference color. Benefits of the invention include increased accuracy in the measurement of the concentration of biological materials due to the larger test zone area. Benefits also include the integration of the reference or calibration color which simplifies the calibration needed for quantification of the concentration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.