Multi-analyte assay device
US5110724A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1990 |
| Grant date | May 5, 1992 |
| Priority date | — |
| Expiry date | Apr 2, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/808
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An assay device for assaying multiple analytes in a drop-size blood sample. The device includes a sample dispenser designed to distribute a small-volume blood sample to multiple transfer sites, by capillary flow of the blood sample through sieving and distributing matrices which separate blood cells from serum as the sample fluid migrates toward the transfer sites. A test plate in the device carries multiple absorbent test pads, each containing reagent components for use in detection of a selected analyte. The test plate is mounted on the dispenser for movement toward and away from a transfer position at which the exposed surface regions of the pads are in contact with associated sample-transfer sites, for simultaneous transfer of sample fluid from such sites to the pads in the support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.