Agglutination reaction slide
US5019351A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 9, 1990 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Oct 9, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/255
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A test element for agglutination tests, comprising a receiving and mixing region for a sample and reagents and a reaction capillary having an upstream region which produces a capillary effect causing the sample-reagents mixture to flow at a speed which is greater than along a downstream region of the reaction capillary. An intermediate region can be provided between the upstream capillary region and the downstream region. The downstream end of capillary is connected to a collecting region. The test element is characterized by continuous supply and movement of the sample-reagents mixture through the reaction capillary. More particularly the time needed for a sample-reagents mixture to flow from the upstream end to the downstream end of the reaction capillary fluctuates only slightly between tests. The test element is particularly suitable for detecting drugs of abuse such as cocaine metabolites in human body fluids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.