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Title:
LEUKOCYTE REMOVAL FILTER MATERIAL AND LEUKOCYTE REMOVAL METHOD
Document Type and Number:
WIPO Patent Application WO/2015/088019
Kind Code:
A1
Abstract:
Disclosed is a leukocyte removal filter that comprises a non-woven fabric containing a polybutylene terephthalate fiber, wherein the average fiber size of the non-woven fabric is 0.9-1.5 μm, the texture index corresponding to a thickness of 0.3 mm of the non-woven fabric is 15-70, and relational expression (1) is satisfied: Y≥-0.65 × X + 1.75 ... (1) wherein X represents the average fiber size of the non-woven fabric; and Y represents the specific surface area of the non-woven fabric.

Inventors:
UCHIMURA TETSURO (JP)
SHIMADA NOBUKAZU (JP)
Application Number:
PCT/JP2014/083023
Publication Date:
June 18, 2015
Filing Date:
December 12, 2014
Export Citation:
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Assignee:
ASAHI KASEI MEDICAL CO LTD (JP)
International Classes:
A61M1/02; A61M1/34; B01D39/16; B01J20/26; D04H1/435; D04H1/4382; D04H3/011; D04H3/16
Domestic Patent References:
WO2004050146A12004-06-17
WO2006073106A12006-07-13
WO2005120600A12005-12-22
WO2012057029A12012-05-03
Foreign References:
JPH02154051A1990-06-13
JP2012183237A2012-09-27
JP2002204910A2002-07-23
JP2006503670A2006-02-02
JPH0213587B21990-04-04
US5580465A1996-12-03
JP4134043B22008-08-13
EP0491850A11992-07-01
Other References:
"Kagaku Binran (Handbook of Chemistry in English), Basics II", 1975, MARUZEN PUBLISHING CO., LTD., pages: 164
See also references of EP 3081241A4
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
Yoshiki Hasegawa (JP)
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