BR0112675A - Sistemas de coleta de sangue e processos utilizando um elemento de membrana porosa - Google Patents

Sistemas de coleta de sangue e processos utilizando um elemento de membrana porosa

Info

Publication number
BR0112675A
BR0112675A BR0112675-0A BR0112675A BR0112675A BR 0112675 A BR0112675 A BR 0112675A BR 0112675 A BR0112675 A BR 0112675A BR 0112675 A BR0112675 A BR 0112675A
Authority
BR
Brazil
Prior art keywords
porous membrane
processes
coating surface
blood collection
collection systems
Prior art date
Application number
BR0112675-0A
Other languages
English (en)
Inventor
Julian P Breillatt Jr
Shmuel Sternberg
Original Assignee
Baxter Int
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 Baxter Int filed Critical Baxter Int
Publication of BR0112675A publication Critical patent/BR0112675A/pt

Links

Classifications

    • 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
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B01D69/1218—Layers having the same chemical composition, but different properties, e.g. pore size, molecular weight or porosity
    • 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
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/3627—Degassing devices; Buffer reservoirs; Drip chambers; Blood filters
    • A61M1/3633—Blood component filters, e.g. leukocyte filters
    • 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
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/3627—Degassing devices; Buffer reservoirs; Drip chambers; Blood filters
    • A61M1/3633—Blood component filters, e.g. leukocyte filters
    • A61M1/3635—Constructional details
    • A61M1/3636—Constructional details having a flexible housing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/18—Apparatus therefor
    • 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
    • B01D63/08—Flat membrane modules
    • B01D63/081—Manufacturing thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Vascular Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Cardiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Anesthesiology (AREA)
  • Veterinary Medicine (AREA)
  • Water Supply & Treatment (AREA)
  • Manufacturing & Machinery (AREA)
  • External Artificial Organs (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Filtering Materials (AREA)

Abstract

"SISTEMAS DE COLETA DE SANGUE E PROCESSOS UTILIZANDO UM ELEMENTO DE MEMBRANA POROSA". Um filtro para a remoção de leucócitos do sangue compreende um meio de filtração (20) encerrado em um invólucro (30). O meio de filtração (20) inclui uma região principal do filtro (MF) compreendendo uma estrutura de membrana porosa estendendo-se entre primeira e segunda superfícies de revestimento. A estrutura de membrana porosa é formada por células que se intersectam tendo uma faixa de diâmetros. As células adjacentes à primeira superfície de revestimento têm diâmetros de um modo geral menores do que os diâmetros das células adjacentes à segunda superfície de revestimento. A primeira superfície de revestimento inclui uma área aberta definida por poros não formados pela interseção das células com a primeira superfície de revestimento. A maior parte da área aberta é definida por poros tendo um diâmetro entre cerca de 12 mícrons e 28 mícrons.
BR0112675-0A 2000-07-24 2001-07-18 Sistemas de coleta de sangue e processos utilizando um elemento de membrana porosa BR0112675A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/624,308 US6612447B1 (en) 2000-07-24 2000-07-24 Blood collection systems and filters using a porous membrane element
PCT/US2001/022651 WO2002007854A1 (en) 2000-07-24 2001-07-18 Blood collection systems and methods using a porous membrane element

Publications (1)

Publication Number Publication Date
BR0112675A true BR0112675A (pt) 2003-06-24

Family

ID=24501483

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0112675-0A BR0112675A (pt) 2000-07-24 2001-07-18 Sistemas de coleta de sangue e processos utilizando um elemento de membrana porosa

Country Status (9)

Country Link
US (2) US6612447B1 (pt)
EP (1) EP1343571A1 (pt)
JP (1) JP2004520087A (pt)
CN (1) CN1457265A (pt)
AU (2) AU2001273560B2 (pt)
BR (1) BR0112675A (pt)
CA (1) CA2416828A1 (pt)
MX (1) MXPA03000531A (pt)
WO (1) WO2002007854A1 (pt)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL137077A (en) * 2000-06-28 2003-05-29 Teva Medical Ltd Leukoreduction filter
FR2835752B1 (fr) * 2002-02-13 2004-11-26 Maco Pharma Sa Unite de filtration comprenant des couches deleucocytantes calandrees
CN101352622B (zh) * 2008-09-17 2010-11-10 西安交通大学 一种滤除白细胞的血液分离装置和分离方法
BR112013025989B1 (pt) 2011-04-13 2021-02-02 3M Innovative Properties Company membrana de filtração macroporosa e equipamento de infusão para a administração de soluções de infusão
US8440085B2 (en) * 2011-06-06 2013-05-14 Pall Corporation Plasma separation
US9248414B2 (en) * 2012-03-30 2016-02-02 Pall Corporation Large pore polymeric membrane
RU2530595C1 (ru) * 2013-02-26 2014-10-10 Закрытое акционерное общество "Научно-производственное предприятие "ИНТЕРОКО" Устройство для удаления лейкоцитов из крови или ее компонентов
US10004841B2 (en) 2013-12-09 2018-06-26 Michael C. Larson Blood purifier device and method
US10376627B2 (en) 2014-03-24 2019-08-13 Fenwal, Inc. Flexible biological fluid filters
USD734467S1 (en) 2014-03-24 2015-07-14 Fenwal, Inc. Blood filter
US9796166B2 (en) 2014-03-24 2017-10-24 Fenwal, Inc. Flexible biological fluid filters
US10159778B2 (en) 2014-03-24 2018-12-25 Fenwal, Inc. Biological fluid filters having flexible walls and methods for making such filters
US9968738B2 (en) 2014-03-24 2018-05-15 Fenwal, Inc. Biological fluid filters with molded frame and methods for making such filters
US9782707B2 (en) 2014-03-24 2017-10-10 Fenwal, Inc. Biological fluid filters having flexible walls and methods for making such filters
CN104001425B (zh) * 2014-04-30 2015-11-18 山东中保康医疗器具有限公司 血浆去白细胞滤器用不亲水膜透水机
CN109715230B (zh) * 2016-09-14 2022-02-08 泰尔茂株式会社 血液成分采样盒、采血回路套件、及血液成分采样系统

Family Cites Families (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US507148A (en) * 1893-10-24 Apparatus for selecting and operating mechanical devices
US4065701A (en) * 1976-07-14 1977-12-27 Gte Laboratories Incorporated Electrodeless light source with reduced heat losses
US4774039A (en) 1980-03-14 1988-09-27 Brunswick Corporation Dispersing casting of integral skinned highly asymmetric polymer membranes
US4629563B1 (en) 1980-03-14 1997-06-03 Memtec North America Asymmetric membranes
US4900443A (en) 1980-03-14 1990-02-13 Memtec North America Corporation Porous aramid membranes and emulsions useful for the casting thereof
JPS59189903A (ja) 1983-04-09 1984-10-27 Kanegafuchi Chem Ind Co Ltd 中空糸状フイルタ−およびその製法
EP0155003B1 (en) 1984-03-15 1990-07-04 ASAHI MEDICAL Co., Ltd. Filtering unit for removing leukocytes
JPS6227006A (ja) 1985-07-27 1987-02-05 Fuji Photo Film Co Ltd 微孔性膜
DE3740871A1 (de) 1986-12-02 1988-06-16 Fuji Photo Film Co Ltd Feinporige membran und verfahren zu ihrer herstellung
US4906374A (en) 1986-12-23 1990-03-06 Pall Corporation Filtration media with low protein adsorbability
GB8707306D0 (en) * 1987-03-26 1987-04-29 British Petroleum Co Plc Underwater oilfield separator
US5108607A (en) 1987-05-20 1992-04-28 Gelman Sciences, Inc. Filtration membranes and method of making the same
US4900449A (en) 1987-05-20 1990-02-13 Gelman Sciences Filtration membranes and method of making the same
US4964990A (en) 1987-05-20 1990-10-23 Gelman Sciences, Inc. Filtration membranes and method of making the same
DE3716916A1 (de) 1987-05-20 1988-12-01 Geesthacht Gkss Forschung Verfahren zur herstellung einer integralasymmetrischen membran
JPS6475014A (en) 1987-09-18 1989-03-20 Terumo Corp Filter for separating leukocytes
US4925572A (en) 1987-10-20 1990-05-15 Pall Corporation Device and method for depletion of the leukocyte content of blood and blood components
CA1329559C (en) 1988-03-03 1994-05-17 Keiji Naoi Leukocyte separator and method of making the same
DE3818860A1 (de) 1988-06-03 1989-12-07 Seitz Filter Werke Filterelement
DE68902698C5 (de) 1988-06-23 2005-07-14 Asahi Medical Co. Ltd. Verfahren zur Trennung von Blut in Blutkomponenten und Einheit zur Trennung von Blutkomponenten.
US4902422A (en) 1988-12-06 1990-02-20 Board Regents The University Of Texas System Defect-free ultrahigh flux asymmetric membranes
US5344561A (en) 1989-05-09 1994-09-06 Pall Corporation Device for depletion of the leucocyte content of blood and blood components
EP0406485A1 (en) 1989-07-03 1991-01-09 NPBI Nederlands Produktielaboratorium voor Bloedtransfusieapparatuur en Infusievloeistoffen B.V. A method for the removal of leukocytes from a leukocyte-containing suspension and filter unit for use with the method
DE69020248T2 (de) 1989-07-14 1996-01-25 Terumo Corp Filtermaterial zum Abscheiden von Leukozyten und Verfahren zu seiner Herstellung.
JP2523938B2 (ja) 1989-09-18 1996-08-14 テルモ株式会社 血小板純化用フィルタ―
US5076935A (en) 1990-05-31 1991-12-31 Gelman Sciences, Inc. Filtration membranes made from polyethersulfone/phenoxy resin blend
US5102917A (en) 1990-09-14 1992-04-07 Cpc Engineering Corporation Porous polysulfone media suitable for filtration
US5089192A (en) 1990-10-22 1992-02-18 Ionics, Incorporated Asymmetric semipermeable poly(aryletherketone) membranes and method of producing same
US5071448A (en) 1990-12-05 1991-12-10 Union Carbide Industrial Gases Technology Corporation Semipermeable membranes based on certain sulfonated substituted polysulfone polymers
US5498336A (en) 1991-02-22 1996-03-12 Terumo Kabushiki Kaisha Leukocyte-removing filter and leukocyte-removing apparatus furnished therewith
US5188734A (en) 1991-03-26 1993-02-23 Memtec America Corporation Ultraporous and microporous integral membranes
US5171445A (en) 1991-03-26 1992-12-15 Memtec America Corporation Ultraporous and microporous membranes and method of making membranes
ES2151492T3 (es) 1991-08-22 2001-01-01 Asahi Medical Co Material de filtro para eliminar selectivamente leucocitos y aparato con relleno del mismo.
US5443743A (en) 1991-09-11 1995-08-22 Pall Corporation Gas plasma treated porous medium and method of separation using same
EP0561379B1 (en) 1992-03-17 1998-07-08 ASAHI MEDICAL Co., Ltd. Filter medium having a limited surface negative charge for treating a blood material
EP0591980B1 (en) 1992-10-07 1999-05-06 Asahi Medical Co., Ltd. Leukocyte-removing filter device and system
EP0596411A3 (en) 1992-11-04 1995-01-25 Millipore Corp Compound ultrafiltration membrane.
IL104670A (en) 1993-02-09 1998-04-05 Travenol Lab Israel Ltd Leukocyte removal method and filter unit for same
JP3311091B2 (ja) 1993-06-27 2002-08-05 テルモ株式会社 白血球分離用フィルター並びに白血球および血小板分離用フィルター
US5707520A (en) 1993-06-27 1998-01-13 Terumo Kabushiki Kaisha Remover unit for use in filtration circuit for removing at least leukocyte
US5456835A (en) 1993-11-08 1995-10-10 Hemasure, Inc. Device and process for removing free hemoglobin from blood
US6367634B1 (en) * 1993-12-22 2002-04-09 Baxter International Inc. Blood collection systems including an integral, flexible filter
WO1995017236A1 (en) 1993-12-22 1995-06-29 Baxter International Inc. Filtration media and device for filtering leukocytes
GB2293133B (en) 1994-03-04 1998-03-11 Memtec America Corp Large pore synthetic polymer membranes
US6045701A (en) 1994-10-17 2000-04-04 Baxter International Inc. Method of filtering a fluid suspension with a membrane having a particular coating
DE69634829T2 (de) 1995-04-13 2006-03-23 Travenol Laboratories (Israel) Ltd. Verfahren und vorrichtung zur leukozytenfiltration
ES2268706T3 (es) * 1995-05-09 2007-03-16 Beckman Coulter, Inc. Dispositivos y procedimientos para separar componentes celulares de la sangre de la porcion liquida de la sangre.
US5906742A (en) 1995-07-05 1999-05-25 Usf Filtration And Separations Group Inc. Microfiltration membranes having high pore density and mixed isotropic and anisotropic structure
GB2305370B (en) 1995-09-19 1997-10-29 Asahi Medical Co Device for depletion of leukocytes
WO1997026134A1 (en) 1996-01-22 1997-07-24 Memtec America Corporation Highly porous polyvinylidene difluoride membranes
US6045899A (en) 1996-12-12 2000-04-04 Usf Filtration & Separations Group, Inc. Highly assymetric, hydrophilic, microfiltration membranes having large pore diameters
US5958989A (en) 1997-07-08 1999-09-28 Usf Filtration And Separations Group, Inc. Highly asymmetric ultrafiltration membranes
US5886059A (en) 1997-07-08 1999-03-23 Memtec America Corporation Highly asymmetric polyethersulfone filtration membranes
US6056903A (en) 1999-02-08 2000-05-02 Osmonics, Inc. Preparation of polyethersulfone membranes

Also Published As

Publication number Publication date
EP1343571A1 (en) 2003-09-17
AU7356001A (en) 2002-02-05
US6824688B2 (en) 2004-11-30
AU2001273560B2 (en) 2004-09-30
US6612447B1 (en) 2003-09-02
CN1457265A (zh) 2003-11-19
WO2002007854A1 (en) 2002-01-31
JP2004520087A (ja) 2004-07-08
MXPA03000531A (es) 2004-04-05
CA2416828A1 (en) 2002-01-31
US20030234226A1 (en) 2003-12-25

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Legal Events

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B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFERIDO O PRESENTE PEDIDO DE PATENTE COMO INVENCAO DE ACORDO COM O ART. 8O DA LPI.

B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL.