Blood separation device comprising a filter and a capillary flow pathway exiting the filter
US5135719A · kind A · utility
190Cited by
10References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1990 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Oct 23, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/25375
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for separating plasma from red blood cells and a device utilizing the method in which a low-pressure filter is interposed in a pathway between an inlet port and a reaction area. The sole driving force for the movement of plasma from the filter to the reaction area is capillary force provided by a tubular capillary. The filter is selected from glass microfiber filters of specified characteristics, which can operate in the absence of agglutinins, and filters capable of separating agglutinated red cells from plasma, which require the use of an agglutinin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.