CA2329103A1 - Dialyzers for blood treatment and processes for production thereof - Google Patents

Dialyzers for blood treatment and processes for production thereof Download PDF

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Publication number
CA2329103A1
CA2329103A1 CA002329103A CA2329103A CA2329103A1 CA 2329103 A1 CA2329103 A1 CA 2329103A1 CA 002329103 A CA002329103 A CA 002329103A CA 2329103 A CA2329103 A CA 2329103A CA 2329103 A1 CA2329103 A1 CA 2329103A1
Authority
CA
Canada
Prior art keywords
semipermeable membrane
dialyzer
dry
hydrophilic polymer
drying
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.)
Granted
Application number
CA002329103A
Other languages
French (fr)
Other versions
CA2329103C (en
Inventor
Hidetoshi Kozawa
Hidekazu Nakashima
Shigehisa Wada
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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
Priority claimed from JP36296299A external-priority patent/JP4211169B2/en
Priority claimed from JP36296199A external-priority patent/JP4061798B2/en
Application filed by Toray Industries Inc filed Critical Toray Industries Inc
Publication of CA2329103A1 publication Critical patent/CA2329103A1/en
Application granted granted Critical
Publication of CA2329103C publication Critical patent/CA2329103C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
    • A61M1/1621—Constructional aspects thereof
    • 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
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/02—Hollow fibre modules
    • B01D63/021—Manufacturing thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/02—Hollow fibre modules
    • B01D63/021—Manufacturing thereof
    • B01D63/0233—Manufacturing thereof forming the bundle
    • 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
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/009—After-treatment of organic or inorganic membranes with wave-energy, particle-radiation or plasma
    • 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
    • B01D67/0095—Drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/08—Hollow fibre membranes
    • B01D69/084—Undulated fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/36—Hydrophilic membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/38—Hydrophobic membranes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Urology & Nephrology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Emergency Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Abstract

The present invention relates to a dialyzer for blood treatment having incorporated therein a semipermeable membrane which comprises a hydrophobic polymer and a hydrophilic polymer, the water permeating performance of the semipermeable membrane after drying being 1/2 or higher relative to that before drying and the dialyzer satisfying any of the following requirements: (A) the vitamin B12 clearance is not smaller than 135 ml/min per 1.6 m2; and (B) the amount of the hydrophilic polymer that is eluted from the semipermeable membrane is not higher than 10 ppm. The invention also relates to a process for producing a dialyzer having incorporated therein a semipermeable membrane which comprises a hydrophobic polymer and a hydrophilic polymer, the process comprising: drying the semipermeable membrane; and saturating the dried semipermeable membrane with water ratio of not smaller than 100% based on the dry weight of the semipermeable membrane, providing an inert gas atmosphere to the inside of the dialyzer, and then irradiating the semipermeable membrane with gamma-ray in the inert gas atmosphere. The invention further relates to a process for producing a hollow fiber membrane for use in blood treatment through dry/wet spinning from a stock solution comprising 15 to 18% by weight of a hydrophobic polymer and 4 to 8% by weight of a hydrophilic polymer, the dry zone being filled with dry mist. The dialyzer includes a dry-type semipermeable membrane having less change in performance before and after drying and high water permeability and dialyzing performance, is light-weight, easy to handle, and exhibits a reduced elution of a hydrophilic polymer.
CA002329103A 1999-12-21 2000-12-20 Dialyzers for blood treatment and processes for production thereof Expired - Lifetime CA2329103C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP36296099A JP4211168B2 (en) 1999-12-21 1999-12-21 Dialyzer manufacturing method and sterilization method
JP362962/99 1999-12-21
JP36296299A JP4211169B2 (en) 1999-12-21 1999-12-21 Dialysis machine for blood treatment
JP362960/99 1999-12-21
JP36296199A JP4061798B2 (en) 1999-12-21 1999-12-21 Semipermeable membrane for blood treatment and dialyzer for blood treatment using the same
JP362961/99 1999-12-21

Publications (2)

Publication Number Publication Date
CA2329103A1 true CA2329103A1 (en) 2001-06-21
CA2329103C CA2329103C (en) 2009-06-09

Family

ID=27341673

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002329103A Expired - Lifetime CA2329103C (en) 1999-12-21 2000-12-20 Dialyzers for blood treatment and processes for production thereof

Country Status (10)

Country Link
US (2) US6605218B2 (en)
EP (1) EP1110563B1 (en)
JP (1) JP4211168B2 (en)
KR (1) KR100701115B1 (en)
CN (2) CN100453126C (en)
AT (1) ATE359858T1 (en)
CA (1) CA2329103C (en)
DE (1) DE60034416T2 (en)
ES (1) ES2285998T3 (en)
TW (1) TW467750B (en)

Cited By (1)

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CN103842003A (en) * 2011-11-04 2014-06-04 旭化成医疗株式会社 Separation membrane for use in treatment of blood, and blood treatment device having said membrane integrated therein

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EP1410839B1 (en) 2001-07-24 2010-05-05 Asahi Kasei Kuraray Medical Co., Ltd. Hollow fiber membrane for purifying blood
US20040247682A1 (en) * 2001-10-04 2004-12-09 Hiroyuki Sugaya Hydrophilic material and process for producing the same
JP4453248B2 (en) * 2001-12-19 2010-04-21 東レ株式会社 Method for producing hollow fiber membrane and hollow fiber membrane module
JP4678063B2 (en) * 2001-12-19 2011-04-27 東レ株式会社 Hollow fiber membrane module
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CA2483661A1 (en) * 2002-05-03 2003-11-13 Pall Corporation Blended polymer membrane media for treating aqueous fluids
WO2004018085A1 (en) * 2002-08-21 2004-03-04 Toray Industries, Inc. Modified substrate and process for producing modified substrate
JP3594032B1 (en) * 2003-08-29 2004-11-24 東洋紡績株式会社 Highly permeable hollow fiber membrane blood purifier
CA2481865C (en) 2003-09-24 2011-07-05 Nipro Corporation Hollow fiber blood-processing device and method for packaging and sterilizing such devices
US7282148B2 (en) * 2003-10-30 2007-10-16 International Business Machines Corporation Porous silicon composite structure as large filtration array
JP3551971B1 (en) * 2003-11-26 2004-08-11 東洋紡績株式会社 Polysulfone permselective hollow fiber membrane
JP3580314B1 (en) * 2003-12-09 2004-10-20 東洋紡績株式会社 Polysulfone-based selectively permeable hollow fiber membrane bundle and method for producing the same
JP3642065B1 (en) 2004-03-22 2005-04-27 東洋紡績株式会社 Permselective separation membrane and method for producing a selectively permeable separation membrane
JP3636199B1 (en) * 2004-03-23 2005-04-06 東洋紡績株式会社 Polysulfone-based permselective hollow fiber membrane bundle, method for producing the same and blood purifier
JP4501530B2 (en) * 2004-05-19 2010-07-14 東洋紡績株式会社 Highly permeable hollow fiber membrane blood purifier
US20080000830A1 (en) * 2004-08-10 2008-01-03 Kimihiro Mabuchi Highly Water Permeable Hollow Fiber Membrane Type Blood Purifier and Process for Manufacturing the Same
JP4885437B2 (en) * 2004-10-15 2012-02-29 東洋紡績株式会社 Blood purifier and blood purifier package
JP4731875B2 (en) * 2004-10-15 2011-07-27 東洋紡績株式会社 Blood purifier sterilization method and blood purifier package
US9067178B2 (en) 2004-12-22 2015-06-30 Nipro Corporation Blood purifier package and process for manufacturing the same
CN1317057C (en) * 2005-01-31 2007-05-23 成都欧赛医疗器械有限公司 Hollow fibrous membranes of modified poly(ether sulfone) and their production
JP4483651B2 (en) * 2005-03-28 2010-06-16 東洋紡績株式会社 Sterilization method of blood purification module
JP3772909B1 (en) * 2005-04-04 2006-05-10 東洋紡績株式会社 Blood purifier
EP1913964A4 (en) * 2005-08-10 2009-11-04 Asahi Kasei Kuraray Medical Co Hollow fiber membrane type blood purifier
US20070119781A1 (en) * 2005-10-03 2007-05-31 Zhongping Huang Apparatus and method for enhanced hemodialysis performance
US20080035568A1 (en) * 2005-10-03 2008-02-14 Zhongping Huang Apparatus and Method for Filtering Fluids
US7924820B2 (en) * 2005-12-07 2011-04-12 Marron Interconnect Llc Method and system for facilitating communications
JP5044946B2 (en) * 2006-02-28 2012-10-10 東レ株式会社 Hollow fiber membrane module and method for producing hollow fiber membrane module
JP4596171B2 (en) * 2006-04-28 2010-12-08 東洋紡績株式会社 Blood purifier
JP4876704B2 (en) * 2006-05-09 2012-02-15 東洋紡績株式会社 Blood purifier
TWI374038B (en) * 2007-05-25 2012-10-11 Asahi Kasei Medical Co Ltd A polysulphone-based membrane for the blood treatment and its manufacturing method
CA2727673A1 (en) * 2008-06-10 2009-12-17 Aquatech International Corporation Preparation of high performance ultra filtration hollow fiber membrane
JP5481379B2 (en) * 2008-07-17 2014-04-23 日機装株式会社 Blood purifier manufacturing method and blood purifier
KR200451972Y1 (en) * 2008-09-03 2011-01-21 김창곤 Fertilizer distributor
ATE545440T1 (en) 2008-09-25 2012-03-15 Gambro Lundia Ab HYBRID BIOLOGICAL ARTIFICIAL KIDNEY
EP2177603A1 (en) 2008-09-25 2010-04-21 Gambro Lundia AB Device for renal cell expansion
EP2168666A1 (en) 2008-09-25 2010-03-31 Gambro Lundia AB Irradiated membrane for cell expansion
EP2168668A1 (en) 2008-09-25 2010-03-31 Gambro Lundia AB Membrane for cell expansion
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EP2859904A4 (en) * 2012-06-11 2015-07-22 Asahi Kasei Medical Co Ltd Separation membrane for blood treatment and blood treatment device having same membrane incorporated therein
JP6168065B2 (en) * 2012-12-07 2017-07-26 ニプロ株式会社 Method of sterilizing medical equipment made of ester resin
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JP6565187B2 (en) * 2013-09-30 2019-08-28 東レ株式会社 Porous membrane, blood purification module incorporating porous membrane, and method for producing porous membrane
CN111093814A (en) * 2017-09-11 2020-05-01 索尔维特殊聚合物美国有限责任公司 Purification method comprising the use of a membrane obtained from a bio-based sulfone polymer
CN111658863A (en) * 2020-07-02 2020-09-15 威海威高血液净化制品有限公司 Method for reducing dissolving-out of PVP in hollow fiber dialyzer
CN114733369A (en) * 2022-05-09 2022-07-12 苏州君康医疗科技有限公司 Plasma separation membrane and production method of plasma component separation membrane

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Publication number Priority date Publication date Assignee Title
CN103842003A (en) * 2011-11-04 2014-06-04 旭化成医疗株式会社 Separation membrane for use in treatment of blood, and blood treatment device having said membrane integrated therein
CN103842003B (en) * 2011-11-04 2016-10-26 旭化成医疗株式会社 Blood treatment separates film and is provided with the blood processor of this film

Also Published As

Publication number Publication date
CN1240446C (en) 2006-02-08
CN1611272A (en) 2005-05-04
ATE359858T1 (en) 2007-05-15
US6605218B2 (en) 2003-08-12
DE60034416T2 (en) 2008-01-03
ES2285998T3 (en) 2007-12-01
TW467750B (en) 2001-12-11
KR20010070309A (en) 2001-07-25
CN100453126C (en) 2009-01-21
DE60034416D1 (en) 2007-05-31
US6960297B2 (en) 2005-11-01
EP1110563A3 (en) 2004-05-19
CA2329103C (en) 2009-06-09
JP4211168B2 (en) 2009-01-21
EP1110563A2 (en) 2001-06-27
US20010004976A1 (en) 2001-06-28
KR100701115B1 (en) 2007-03-29
CN1300629A (en) 2001-06-27
JP2001170167A (en) 2001-06-26
EP1110563B1 (en) 2007-04-18
US20050072731A1 (en) 2005-04-07

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Effective date: 20201221