Device and method for self contained solid phase immunodiffusion assay
US5169789A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 1991 |
| Grant date | Dec 8, 1992 |
| Priority date | — |
| Expiry date | Dec 27, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/38
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device and method for a self contained solid phase immunodiffusion assay. The device is comprised of a sample collector, and a pre-fabricated laminate which can be used in many different forms. For example, the same collector and laminate can be used with a tube having compartmentalized reagents. The seals can be broken through pressure on the sample collector. The sample collector is pushed through the seals, mixed with reagent, and then pushed into a ligand receptor reaction area which is part of the laminate. The tip of the sample collector contacts diffusable or porous membranes or filters and transfers the reactants to a capture membrane wherein a ligand receptor reaction can be examined by the naked eye or otherwise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.