Blood filtering metering device
US4987085A · kind A · utility
107Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1989 |
| Grant date | Jan 22, 1991 |
| Priority date | — |
| Expiry date | Mar 16, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/491
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Constructions are provided for removing interfering red blood cells from a blood sample and providing a measured amount of serum or plasma to a pad. The pad serves as a bridge for the transfer of reagent between two bibulous strips, resulting in transfer of reagent solution through the pad and transport of a material to be measured to the measuring region of the strips. Particularly, glass fiber membranes are used in conjunction with cellulosic membranes to minimize red blood cell lysis, remove red blood cells and provide a measured amount of sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.