Method for performing fibrinogen assays using dry chemical reagents containing magnetic particles
US5350676A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 1993 |
| Grant date | Sep 27, 1994 |
| Priority date | — |
| Expiry date | May 17, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2333/75
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and a method for performing a fibrinogen assay are disclosed. The reaction slide bears a sample well for receiving a liquid sample and a reaction chamber in fluid communication with the sample well. The reaction chamber contains a dry reagent matrix in which is embedded a plurality of magnetic particles. A whole blood or blood-derived sample added to the sample well is introduced simultaneously into the reaction chamber where it solubilizes the reagent, freeing the magnetic particles and allowing them to move in an oscillating pattern. This oscillating pattern is optically monitored to measure the concentration of clottable fibrinogen in the sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.