Blood separation device comprising a filter and a capillary flow pathway exiting the filter
US4753776A · kind A · utility
253Cited by
10References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1986 |
| Grant date | Jun 28, 1988 |
| Priority date | — |
| Expiry date | Oct 29, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2400/0406
- 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 a plasma, which require the use of an agglutinin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.