Filter canister for immunoassays
US4959197A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1988 |
| Grant date | Sep 25, 1990 |
| Priority date | — |
| Expiry date | Sep 7, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L3/502
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A canister for holding a solid phase support for use in a biospecific binding assay is disclosed. The canister consists of a receptacle and cap, both shaped to mate with each other in a snug fit, the cap having a central opening spanned by the solid phase in the form of a thin porous disk. The central opening is surrounded by a raised surface which forms a protective wall avoiding inadvertent contact of the disk by the user or surrounding objects. The cap and receptacle are constructed so as to provide a vent when the parts are joined, providing gravitational flow of a test sample across the porous disk into the interior of the receptacle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.