Antibody testing system with removable air gap
US5137691A · kind A · utility
32Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 5, 1989 |
| Grant date | Aug 11, 1992 |
| Priority date | — |
| Expiry date | Jun 5, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/54366
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A device for performance of ligand-receptor assay methods for determining the presence of a ligand. The preferred ligand-receptor pair are antigen-antibody pairs. The device has a membrane having the receptor physically bound to its surface. A closable gap exists between the membrane and an absorbent means. Substantially all of the top surface of the membrane is exposed. The device has a piston means disposed inside the body member, and in air-tight seal with the body member. Means to actuate the piston means are disposed outside the body member. The piston means creates a region of reduced pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.