Capillary flow device
US4756884A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1986 |
| Grant date | Jul 12, 1988 |
| Priority date | — |
| Expiry date | Jul 1, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/81
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and devices are provided involving at least one chamber, at least one capillary, and at least one reagent involved in a system providing for a detectable signal. As appropriate, the devices provide for measuring a sample, mixing the sample with reagents, defining a flow path, and reading the result. Of particular interest is the use of combinations of specific binding pair members which result in agglutination information, where the resulting agglutination particles may provide for changes in flow rate, light patterns of a flowing medium, or light absorption or scattering. A fabrication technique particularly suited for forming internal chambers in plastic devices is also described along with various control devices for use with the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.