Optical assay device and method
US6287783A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1999 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Mar 18, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/805
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention involves an optical assay device and method of use for the detection of an analyte of interest in a sample that conveniently allows control of the flow characteristics of the sample through the device without significant user intervention. The optical assay device includes a base having an absorbent material, and a member having an optically active test stack that is rotatably coupled to the base for rotation between a lowered position and a raised position. In the lowered position, the optically active test stack contacts the absorbent material for drawing the sample through the surface. In the raised position, the optically active test stack does not contact the absorbent material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.