Method for removing leukocytes, leukocyte-removing filter and utilization thereof
US7591954B2 · kind B2 · utility
26Cited by
9References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 2, 2003 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | Nov 13, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D39/1623
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for removing leukocytes, whereby leukocytes can be removed at a higher level of performance in a short filtration time without clogging. A method comprising passing a leukocyte-containing liquid through a filter for removing leukocytes made of a nonwoven fabric having an average fiber diameter of from 0.3 to 3.0 μm, and thus removing the leukocytes from the leukocyte-containing liquid, to give a leukocyte-free liquid, characterized by using a nonwoven fabric having a formation index (y) of 50 or less corresponding to a thickness of 0.3 mm; use of a leukocyte removal filter therefore; and the leukocyte removal filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.