Integrated confirmation sample in a body fluid test device and method of using
US6875185B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2002 |
| Grant date | Apr 5, 2005 |
| Priority date | — |
| Expiry date | Aug 17, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B10/0051
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A lateral flow immunoassay contact chemical test device and method integrates sample collection, prescreen testing, and confirmation sample collecting and storing with a single device and a minimum of steps. While particularly advantageously used with an oral fluid sample absorbed directly from a person's mouth, (in which constant monitoring of a collection process is made possible), the test device may be used with any of a variety of sample fluids. Prescreen testing and confirmation testing are performed on a single sample. Prescreen testing is performed by a lateral flow assay. The sample collection pad is subsequently separated from the wicking path to prevent continued migration from, and backflow into the sample collection pad, so that the confirmation sample is preserved in the sample collection pad. A multitude of antigens can be detected with a single device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.