DE69834651D1 - Filtermaterial zur entfernung von weissen blutkörperchen - Google Patents

Filtermaterial zur entfernung von weissen blutkörperchen

Info

Publication number
DE69834651D1
DE69834651D1 DE69834651T DE69834651T DE69834651D1 DE 69834651 D1 DE69834651 D1 DE 69834651D1 DE 69834651 T DE69834651 T DE 69834651T DE 69834651 T DE69834651 T DE 69834651T DE 69834651 D1 DE69834651 D1 DE 69834651D1
Authority
DE
Germany
Prior art keywords
removal
filter material
white blood
hydrophilic
basic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69834651T
Other languages
English (en)
Other versions
DE69834651T2 (de
Inventor
Tatsuya Fukuda
Norio Thoma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Kasei Medical Co Ltd
Original Assignee
Asahi Kasei Medical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asahi Kasei Medical Co Ltd filed Critical Asahi Kasei Medical Co Ltd
Publication of DE69834651D1 publication Critical patent/DE69834651D1/de
Application granted granted Critical
Publication of DE69834651T2 publication Critical patent/DE69834651T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/34—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0088—Physical treatment with compounds, e.g. swelling, coating or impregnation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/086—Filter cloth, i.e. woven, knitted or interlaced material of inorganic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0093—Chemical modification
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0093—Chemical modification
    • B01D67/00931—Chemical modification by introduction of specific groups after membrane formation, e.g. by grafting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/04—Liquids
    • A61M2202/0413—Blood
    • A61M2202/0439—White blood cells; Leucocytes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0414—Surface modifiers, e.g. comprising ion exchange groups
    • B01D2239/0421—Rendering the filter material hydrophilic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0471—Surface coating material
    • B01D2239/0478—Surface coating material on a layer of the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1216—Pore size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1291—Other parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/38—Graft polymerization
DE69834651T 1997-08-28 1998-08-25 Filtermaterial zur entfernung von weissen blutkörperchen Expired - Fee Related DE69834651T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP24781297 1997-08-28
JP24781297 1997-08-28
PCT/JP1998/003762 WO1999011304A1 (fr) 1997-08-28 1998-08-25 Substance filtrante recuperant les leucocytes

Publications (2)

Publication Number Publication Date
DE69834651D1 true DE69834651D1 (de) 2006-06-29
DE69834651T2 DE69834651T2 (de) 2007-04-26

Family

ID=17169039

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69834651T Expired - Fee Related DE69834651T2 (de) 1997-08-28 1998-08-25 Filtermaterial zur entfernung von weissen blutkörperchen

Country Status (10)

Country Link
US (1) US6352642B1 (de)
EP (1) EP1016426B1 (de)
JP (1) JP4271265B2 (de)
KR (1) KR100343092B1 (de)
CN (1) CN1177620C (de)
AT (1) ATE326990T1 (de)
AU (1) AU726974B2 (de)
CA (1) CA2301726C (de)
DE (1) DE69834651T2 (de)
WO (1) WO1999011304A1 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100463615B1 (ko) * 1999-11-01 2004-12-29 아사히 카세이 메디칼 가부시키가이샤 백혈구 선택 제거 필터
JP2002161048A (ja) * 2000-11-24 2002-06-04 Terumo Corp 血小板放出因子調製用フィルター及び血小板放出因子の調製方法
EP1341467A4 (de) * 2000-12-05 2009-11-18 Haemonetics Corp Verfahren zum abscheiden von roten blutkörperchen
ATE425995T1 (de) * 2001-07-31 2009-04-15 Asahi Kasei Medical Co Ltd Leukozytenfilter mit polymerbeschichtung
WO2003047655A1 (fr) * 2001-12-03 2003-06-12 Asahi Medical Co., Ltd. Filtre pour l'elimination selective de leucocytes
US7439013B2 (en) * 2002-06-17 2008-10-21 Asahi Kasei Kuraray Medical Co., Ltd. Biocompatible polymer and filter for selectively eliminating leucocytes using the same
EP1555027A4 (de) * 2002-10-16 2008-06-04 Asahi Kasei Medical Co Ltd PLASMAPRûPARAT ODER SERUMPRûPARAT UND VERFAHREN ZU SEINER HERSTELLUNG
CN101862564B (zh) * 2010-03-16 2012-03-21 苏州市玮琪生物科技有限公司 一种微量血样预处理系统及其制备工艺
TWI410269B (zh) * 2010-09-16 2013-10-01 私立中原大學 白血球過濾材料及其過濾方法
EP2495025A1 (de) * 2011-03-04 2012-09-05 Fresenius Medical Care Deutschland GmbH Filter zur Entfernung von Mikrovesikeln aus biologischen Flüssigkeiten sowie Verfahren und Vorrichtungen damit
DK2956469T3 (en) * 2013-02-18 2019-04-01 Wisconsin Alumni Res Found METHODS AND COMPOSITIONS FOR PROTEIN CONCENTRATION
EP3006058B1 (de) * 2013-06-07 2021-11-10 Nissan Chemical Corporation Blutfilter und verfahren zur herstellung davon
US9782707B2 (en) 2014-03-24 2017-10-10 Fenwal, Inc. Biological fluid filters having flexible walls and methods for making such filters
US10159778B2 (en) 2014-03-24 2018-12-25 Fenwal, Inc. Biological fluid filters having flexible walls and methods for making such filters
US9796166B2 (en) 2014-03-24 2017-10-24 Fenwal, Inc. Flexible biological fluid filters
US10376627B2 (en) 2014-03-24 2019-08-13 Fenwal, Inc. Flexible biological fluid filters
US9968738B2 (en) 2014-03-24 2018-05-15 Fenwal, Inc. Biological fluid filters with molded frame and methods for making such filters
US20170266362A1 (en) 2014-08-26 2017-09-21 3M Innovative Properties Company System for removal of pro-inflammatory mediators as well as granulocytes and monocytes from blood
CN106117590A (zh) * 2016-06-22 2016-11-16 广州新克力生物科技有限公司 一种白细胞过滤膜的改性方法
CN106117580A (zh) * 2016-06-23 2016-11-16 广州新克力生物科技有限公司 一种用于滤除白细胞的滤膜改性剂及其改性方法
MX2019001967A (es) * 2016-08-18 2019-07-08 Asahi Kasei Medical Co Ltd Elemento filtrante para filtro de procesamiento de sangre, filtro de procesamiento de sangre y metodo de remocion de leucocitos.

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4711793A (en) * 1980-10-27 1987-12-08 Cuno Incorporated Process for charge modifying a microphorous membrane
US4936998A (en) * 1986-03-28 1990-06-26 Asahi Medical Co., Ltd. Filter medium for selectively removing leucocytes
CA1335713C (en) 1988-02-17 1995-05-30 David Boris Pall Device and method for separating leucocytes from platelet concentrate
CA1329559C (en) * 1988-03-03 1994-05-17 Keiji Naoi Leukocyte separator and method of making the same
US5344561A (en) * 1989-05-09 1994-09-06 Pall Corporation Device for depletion of the leucocyte content of blood and blood components
US5217627A (en) * 1990-11-06 1993-06-08 Pall Corporation System and method for processing biological fluid
JP3124565B2 (ja) 1991-02-22 2001-01-15 テルモ株式会社 白血球除去フィルターおよび白血球除去装置
US5498336A (en) * 1991-02-22 1996-03-12 Terumo Kabushiki Kaisha Leukocyte-removing filter and leukocyte-removing apparatus furnished therewith
EP0561379B1 (de) * 1992-03-17 1998-07-08 ASAHI MEDICAL Co., Ltd. Filtermedium mit begrenzter negativer Oberflächenladung für die Behandlung von Blutmaterial
EP0586268B1 (de) * 1992-07-06 2000-02-23 Terumo Kabushiki Kaisha Material zur Entfernung von pathogener Substanz und mit diesem Material hergestellter Blutfilter
DE69314154T2 (de) 1992-12-28 1998-04-30 Asahi Medical Co Filtermaterial, Vorrichtung und Verfahren zum Abtrennen von Leukozyten
JP3657013B2 (ja) 1992-12-28 2005-06-08 旭化成メディカル株式会社 白血球除去フィルター材料、白血球除去装置および白血球除去方法
WO1998001208A1 (en) * 1996-07-08 1998-01-15 Memtec America Corporation Cationically charge-modified membranes

Also Published As

Publication number Publication date
CA2301726C (en) 2003-06-10
CN1177620C (zh) 2004-12-01
CN1268893A (zh) 2000-10-04
US6352642B1 (en) 2002-03-05
EP1016426B1 (de) 2006-05-24
EP1016426A4 (de) 2001-08-22
AU726974B2 (en) 2000-11-30
CA2301726A1 (en) 1999-03-11
KR100343092B1 (ko) 2002-07-05
ATE326990T1 (de) 2006-06-15
WO1999011304A1 (fr) 1999-03-11
KR20010023349A (ko) 2001-03-26
JP4271265B2 (ja) 2009-06-03
DE69834651T2 (de) 2007-04-26
AU8750498A (en) 1999-03-22
EP1016426A1 (de) 2000-07-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee