Self contained immunoassay element
US4918025A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 3, 1987 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Mar 3, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/807
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An element for analysis of a liquid sample including a capillary containing a fixed reagent in fluid communication with reagent reservoirs and a waste liquid reservoir. A sample introducing means is provided which permits analyte in a sample to interact with the fixed reagent. A labelled reagent is provided which interacts with either the fixed reagent or the analyte in a manner which permits detection of the concentration of analyte in the sample. The capillary, reagent reservoirs, waste liquid reservoir and the sample introducing means are arranged within a common housing so that reagent waste liquid need not be removed from the element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.