Diagnostic assay providing blood separation
US5753497A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1995 |
| Grant date | May 19, 1998 |
| Priority date | — |
| Expiry date | Dec 22, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/97
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention provides a device and method for preparing a plasma enriched sample for use in an immunoassay strip. All parts that contact blood or a blood fraction remain in a container and prevent contamination from used blood. In one embodiment a sampling device collects blood and enters the container. A plasma enriched sample fills a plasma receptor which in turn is transferred to an immunoassay strip. Plasma is washed out of the strip by an aqueous solution. In another embodiment the sampling device doubles as a plasma separator. The invention allows sensitive and safe immunoassays to be performed on whole blood samples outside of the normal clinical laboratory setting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.