CN1041706A - 微过滤装置 - Google Patents
微过滤装置 Download PDFInfo
- Publication number
- CN1041706A CN1041706A CN89107896A CN89107896A CN1041706A CN 1041706 A CN1041706 A CN 1041706A CN 89107896 A CN89107896 A CN 89107896A CN 89107896 A CN89107896 A CN 89107896A CN 1041706 A CN1041706 A CN 1041706A
- Authority
- CN
- China
- Prior art keywords
- filter
- diaphragm
- prefilter
- inorganic material
- microfilter device
- 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.)
- Pending
Links
- 238000011045 prefiltration Methods 0.000 claims abstract description 21
- 239000011147 inorganic material Substances 0.000 claims abstract description 17
- 229910010272 inorganic material Inorganic materials 0.000 claims abstract description 16
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 12
- 241000204031 Mycoplasma Species 0.000 claims abstract description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 210000002966 serum Anatomy 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 244000005700 microbiome Species 0.000 abstract description 2
- 241000204003 Mycoplasmatales Species 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 229920000620 organic polymer Polymers 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000003104 tissue culture media Substances 0.000 description 2
- VNPMDUDIDCXVCH-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-3-(3-piperazin-1-ylpropyl)pyrazol-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound O=C(CN1C=C(C(CCCN2CCNCC2)=N1)C1=CN=C(NC2CC3=C(C2)C=CC=C3)N=C1)N1CCC2=C(C1)N=NN2 VNPMDUDIDCXVCH-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 206010028470 Mycoplasma infections Diseases 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000002048 anodisation reaction Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 210000000744 eyelid Anatomy 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000012982 microporous membrane Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 210000002381 plasma Anatomy 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 238000012559 user support system Methods 0.000 description 1
Images
Classifications
-
- 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
- B01D63/087—Single membrane modules
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
-
- 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
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2003—Glass or glassy material
- B01D39/2017—Glass or glassy material the material being filamentary or fibrous
-
- 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
- B01D61/147—Microfiltration
-
- 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
-
- 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
- B01D69/1213—Laminated layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/024—Oxides
- B01D71/025—Aluminium oxide
-
- 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
- A61M2202/0415—Plasma
- A61M2202/0423—Serum; Human serous fluid, i.e. plasma without fibrinogen
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/75—General characteristics of the apparatus with filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/24—Specific pressurizing or depressurizing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2319/00—Membrane assemblies within one housing
- B01D2319/02—Elements in series
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/02—Details relating to pores or porosity of the membranes
- B01D2325/022—Asymmetric membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/02—Details relating to pores or porosity of the membranes
- B01D2325/0283—Pore size
- B01D2325/02832—1-10 nm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/02—Details relating to pores or porosity of the membranes
- B01D2325/0283—Pore size
- B01D2325/02833—Pore size more than 10 and up to 100 nm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/02—Details relating to pores or porosity of the membranes
- B01D2325/0283—Pore size
- B01D2325/02834—Pore size more than 0.1 and up to 1 µm
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Hematology (AREA)
- General Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Geology (AREA)
- Animal Behavior & Ethology (AREA)
- Cardiology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Filtering Materials (AREA)
- External Artificial Organs (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
一种适用于从生物液体中去除微生物如支原体的微过滤装置是由两个串联的过滤器组成。第一过滤器是预过滤器。第二过滤器是一个多孔非对称无机材料膜片,其中靠近一个表面的小孔直径大于靠近另一表面的小孔直径,较大孔的表面位于面向上游端一侧。
Description
本发明涉及微过滤装置。微过滤器是表示该过滤器的小孔是亚微米级的。用有机聚合物和无机材料制成的微过滤器都可经市售得到。无机材料微过滤器优于有机聚合物微过滤器之处在于:它具有较好的抗各种化学制品的能力,具有较好的热稳定性,这种性能对于消毒处理场合尤其为重要,在给定的微孔孔径情况下,通常便于控制微孔孔径和具有较高的流动强度。本发明是涉及无机材料微过滤器而不涉及有机材料微过滤器。
过滤器设计通常综合考虑两个重要特征:
微孔孔径,它决定着可被过滤器保留的悬浮细粒材料的最小粒子;和
流动强度,即在规定条件下过滤器单位面积的流量。当然,流动强度随微孔孔径成反比变化。但流动强度也随微孔长度成反比变化,因此,通常要求制成尽可能短的细孔,即使过滤器的细孔部分尽可能薄些。
由于非常薄的膜片是易损坏的,许多人曾试图设计一种用一层较坚固的厚些多孔膜片支撑一层薄的微孔膜的复合膜片。假如多孔膜片的小孔不是太大,所使用的微孔膜可以桥接这些小孔,在正常使用中不会开裂。其结果形成一种非对称膜片。文献中介绍了许多有关非对称无机材料膜片的实例,所述文献包括:欧洲专利申请040282号;欧洲专利申请136937号;欧洲专利申请144097号·欧洲专利申请178831号;欧洲专利申请188950号;欧洲专利申请242208号;美国专利4562021号;美国专利4689150号。这些非对称膜片具有一个带较大孔的层系从一个表面上伸展,而与它相连接的一个带较小孔的层系从另一表面上伸展。根据这一设想,较小孔部位是由较大孔部位支撑着,当采用这种非对称膜片作为过滤器时,总是将较小孔部位置于上游端一侧。
美国专利4629563号介绍了一种带表层侧和支撑侧的有机聚合物非对称微孔膜片,并指导使用者当采用这种膜片作为过滤器时要将支撑侧面向上游端。
在市场上销售的商标为ANOTOP的Anotec分离器系列一次性使用的注射器过滤器包括非对称无机材料过滤膜片。尽管总的来说这种过滤器是成功的,但在流动强度和过滤效率以及在过滤器堵塞之前它能够过滤的液体量方面都还有改进的余地。
本发明的一个方面是提供一种带有壳体的微过滤装置,该壳体具有进入口和排出口,并构成液体通道,两个串联的过滤器横过上述通道设置,其中:
第一过滤器是预过滤器,
第二过滤器是一个带有多孔连接两个表面的无机材料膜片,靠近第一表面的小孔直径大于靠近第二表面的小孔直径,第一表面位于膜片的上游端一侧。
本发明的另一方面是提供一种处理含有悬浮材料的液体的方法,该方法包括使液体通过本文所描述的微过滤装置。
本发明源于以下新发现,即两种特征的结合导致在各个方面出现意想不到的改进的过滤器性能。第一特征是采用预过滤器,它的功能是去除较粗的颗粒材料,不然会堵塞主过滤器。因此,预过滤器的小孔尺寸要比主过滤器大一些。预过滤器的性能不是重要因素,并已发现以采用厚度为0.2至5毫米,最好是0.4至2毫米,而孔径为0.2至5微米,最好是0.4至1微米的过滤器为宜。预预过滤器可以由有机的或无机的或金属材料制成。如采用玻璃纤维制成的迂回通道过滤器都是适用的。
第二个特征是采用一种带有较小孔部位面向下游端一侧而不是上游端一侧的无机材料非对称膜片。该非对称膜片最好是阳极氧化铝膜片,例如可以采用上述欧洲专利申请178831号中所介绍的方法制成的膜片。根据该说明书所介绍的阳极氧化铝膜片具有从一个表面上伸展的较大孔的层系和与它互相连接的从另一表面伸展的较小孔的层系。将铝金属基板阳极化制成该膜片,然后以一定速率降低所施加的电压,可以采用连续地,也可以采用一点一点地逐渐降低到最好低于15V的电压值,使氧化膜片得以部分或完全还原,并从基板上分离氧化膜片。这种类型的非对称膜片可以市售得到,商标为“ANODISC”。通常较小孔层系上的小孔尺寸其最小直径至少是2nm,但要小于较大孔层系孔径的一半,例如5至150nm。就用于本发明的膜片而言,其最小孔径最好为30至120nm。
换言之,第二过滤器可以是阳极氧化铝膜片,由于贯穿该膜的小孔是锥形孔,其靠近第一表面的直径要比靠近第二表面的直径大些,因此该膜片是非对称的。
或者说,第二过滤器可以是一种复合膜片,它包括多孔无机材料膜片〔如阳极或带式铸件(fape-cast)〕和复在其一表面上用溶胶-凝胶技术制成的微孔无机材料薄膜。这种复合膜片在上述各专利中都介绍过,其中,尤其是欧洲专利申请242208号进行了详细介绍。
第一和第二过滤器最好都采用无机材料和非金属材料制成。过滤器中任一个或两个均可以常规方式围绕其圆周边或者通过其整个面积进行支撑。例如,在最新式ANOTOP型过滤装置中,可以采用一种塑料制成的波纹形多孔支撑器,将过滤器粘接在波纹的顶部。两个过滤器可以在壳体内保持分离状态,以它们之间的空隙容纳液体;或者该第一过滤器可以采用或不采用垫片装置简单地靠在第二过滤器的上游端一侧的表面上。该壳体最好是构成一个一次性使用的手握注射器过滤装置。为此,可以采用例如借助于路厄锁定器(luer lock)的进入口以接受来自手动注射器的流体;并可采用一排出口以容纳一个皮下注射器针头。壳体可以由塑料如聚丙烯制成。在一个替换型装置中,具有多个并联过滤单元,每个单元带有第一和第二过滤器,如同常规的叠盘筒形过滤器。
该过滤装置用于处理含悬浮材料的液体,特别是处理含有以稀释或浓缩形式存在的各种生物流体,如血清、血浆、尿、奶等。本发明提出的一个特殊问题是从血清中去除支原体。支原体的去除是非常困难的,因为支原体缺失坚固的细胞壁,因此在压力和挤压作用下会变形而通过常规的0.2微米聚合物的细菌过滤膜片。组织培养液的支原体感染是非常严重和昂贵的。此外,组织培养液由于其粘性并含有粒子易于导致膜片堵塞,因而难以过滤。采用本发明,这些问题均可克服。
参看附图,图中表示本发明过滤装置的轴向剖视图。该装置包括一个带有进入口11和排出口12的壳体10,整个构成液体通路。两个串联的过滤器横过此通路设置,其中,一个预过滤器13和一个无机材料膜片14、15,其具有较大孔的层系14从第一表面上伸展,与之相互连接的具有较小孔的层系从第二表面上伸展。第一表面位于此膜片的上游端一侧。壳体可以是圆形截面或者也可以是相似的截面形状,如六角形或八角形。两个过滤器都是用本专业领域众所周知的方法沿其圆周边密封在壳体内。进入口11示出具有一个安装到注射器上用的路厄锁定器16。
下述实例用以说明本发明,在这些实例中,第二过滤器是按照欧洲专利申请178831号所介绍的方法制造的一种非对称阳极氧化铝膜片。在该层系上的孔或较大孔的直径为0.2微米,而较小孔层系的孔径为0.1微米。
实例1
将经净γ射线辐照的母胎牛血清(来自商业货源)通过过滤装置,该装置除了未设置预过滤器13外,如附图所示。在输出3至4滴(在10毫升注射器上施以最大手动压力)后,该膜片过滤器就被堵塞。采用上述过滤装置并带有一个无粘结剂的玻璃纤维预过滤器〔Whatman GF/F〕,在相同条件下,该过滤装置可以通过8.5毫升血清。
采用通常用于组织培养介质的10%血清,则带预过滤器的过滤装置可以通过120毫升这种介质,而不用预过滤器时只能通过10毫升。
实例2
含有非对称阳极膜片而不带预过滤器的一次性使用注射器过滤装置,利用含有浓度为6.4×104/毫升的支原体细菌的组织培养肉汤进行膜片定向的对比实验。测量在0.6Mpa压力下使5毫升这种培养液通过过滤装置的时间。还测定过滤过程中所滤除的支原体的数目。
倒置的 非倒置的
(小孔部位置于下游端一侧) (小孔部位置于上游端一侧)
时间(5毫升) 5秒 165秒
去除效率(%) 100 100
对于含细颗粒的液体,采用倒置的膜片并使用预过滤器,在较高要求(例如107/毫升)下可改善流率并提高效率。
实例3
对含有以较大孔表面面向上游端一侧的非对称阳极膜片的一次性使用注射器过滤装置,利用含有口服浓度为1.3×105/毫升支原体的组织培养肉汤进行带预过滤器和不带预过滤器的对比实验。在每次实验中,以10毫升液体通过过滤装置。采用不带预过滤器的装置时,支原体的滤除效率为99.96%。采用带预过滤器的装置时,其滤除效率为99.99%。采用预过滤器可使通过该过滤装置的微生物的数目降低到四分之一。
Claims (11)
1、一种包括壳体的微过滤装置,该壳体带有进入口和排出口并形成液体通路,两个串联的过滤横过该通路设备,其特征在于:
-第一过滤器是预过滤器,
-第二过滤器是带有由若干小孔连接两个表面的无机材料膜片,靠近第一表面的小孔直径大于靠近第二表面的小孔直径,该第一表面位于该膜片的上游端一侧。
2、如权利要求1所述的微过滤器,其特征在于:该第二过滤器是一个具有由较大孔层系从第一表面伸展和与它相互连接的较小孔层系从第二表面伸展的无机材料膜片,该第一表面位于该膜片的上游端一侧。
3、如权利要求1所述的微过滤装置,其特征在于:无机材料膜片是一种非对称阳极氧化铝膜片。
4、如权利要求1所述的微过滤装置,其特征在于:在阳极氧化铝膜片的较小孔层系内,小孔的最小直径为5至150nm。
5、如权利要求4所述的微过滤装置,其特征在于:最小直径为30至120nm。
6、如权利要求1所述的微过滤装置,其特征在于:进入口是用以接受来自手动注射器的液体。
7、如权利要求1所述的微过滤装置,其特征在于:预过滤器是由玻璃纤维制成的。
8、一种处理含有悬浮材料的液体的方法,该方法包括将液体通过一个带有壳体的微过滤装置,该壳体具有进入口和排出口并形成液体通路,两个串联的过滤器横过该通路设置,其特征在于:
-第一过滤器是预过滤器,
-第二过滤器是一个具有由许多小孔连接两个表面的无机材料膜片,靠近第一表面的小孔直径大于靠近第二表面的小孔直径,该第一表面位于该膜片的上游端一侧。
9、如权利要求8所述的方法,其特征在于:该液体是生物液体。
10、如权利要求9所述的方法,其特征在于:该生物液体是血清。
11、如权利要求9所述的方法,其特征在于:该悬浮材料是支原体。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB888823706A GB8823706D0 (en) | 1988-10-10 | 1988-10-10 | Microfilter device |
GB8823706.0 | 1988-10-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN1041706A true CN1041706A (zh) | 1990-05-02 |
Family
ID=10644953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN89107896A Pending CN1041706A (zh) | 1988-10-10 | 1989-10-10 | 微过滤装置 |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0364173A1 (zh) |
JP (1) | JPH02152525A (zh) |
KR (1) | KR900006013A (zh) |
CN (1) | CN1041706A (zh) |
AU (1) | AU4268389A (zh) |
BR (1) | BR8905097A (zh) |
CA (1) | CA2000055A1 (zh) |
DK (1) | DK498689A (zh) |
GB (1) | GB8823706D0 (zh) |
NO (1) | NO894031L (zh) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1055694C (zh) * | 1994-03-02 | 2000-08-23 | 莱克药物与化学公司dd | 分离棒酸及其药学上可接受的盐的新方法 |
CN1303201C (zh) * | 2000-06-09 | 2007-03-07 | 比奥·麦利尤股份有限公司 | 从体积较大的样品中制备要分析的样品 |
CN101732767A (zh) * | 2008-11-10 | 2010-06-16 | 天津市同业科技发展有限公司 | 一种医用负压吸引器除菌防溢过滤器 |
CN104334215A (zh) * | 2012-03-29 | 2015-02-04 | 金普奥膜科技(杭州)有限公司 | 针头过滤装置 |
CN105814421A (zh) * | 2013-12-25 | 2016-07-27 | 日本普瑞伦有限公司 | 微孔过滤器的制造方法 |
CN107638614A (zh) * | 2012-03-29 | 2018-01-30 | 金普奥膜科技(杭州)有限公司 | 针头过滤装置 |
CN109925881A (zh) * | 2019-03-13 | 2019-06-25 | 深圳拓扑精膜科技有限公司 | 使用aao多孔膜的可扩展循环过滤装置及系统 |
CN114931777A (zh) * | 2021-04-13 | 2022-08-23 | 上海理工大学 | 一种去除装置及去除方法 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4143639C2 (de) | 1991-12-02 | 2002-10-24 | Qiagen Gmbh | Verfahren zur Isolierung und Reinigung von Nukleinsäuren |
WO1995017238A1 (en) * | 1993-12-21 | 1995-06-29 | Genera Technologies Limited | Filtration method and apparatus |
DE19823994B4 (de) * | 1998-05-28 | 2008-06-26 | Whatman Gmbh | Membranträger zur Keimzahlbestimmung |
DE19847537A1 (de) * | 1998-10-15 | 2000-05-04 | Mannesmann Vdo Ag | Platine mit auf beiden Seiten angeordneten Leiterbahnen |
ES2296643T3 (es) * | 1999-09-14 | 2008-05-01 | Millipore Corporation | Dispositivos para separacion de virus. |
US7108791B2 (en) | 1999-09-14 | 2006-09-19 | Millipore Corporation | High-resolution virus removal methodology and filtration capsule useful therefor |
DE10000196B4 (de) * | 2000-01-05 | 2013-10-10 | Sartorius Stedim Biotech Gmbh | Verbesserte Crossflow-Filtrationseinheit |
US8210360B2 (en) | 2006-05-07 | 2012-07-03 | Synkera Technologies, Inc. | Composite membranes and methods for making same |
KR100900387B1 (ko) | 2007-08-24 | 2009-06-02 | 한국원자력연구원 | 수처리용 필터 및 이의 제조방법 |
US9309019B2 (en) * | 2010-05-21 | 2016-04-12 | Adhezion Biomedical, Llc | Low dose gamma sterilization of liquid adhesives |
US8815156B2 (en) * | 2010-07-19 | 2014-08-26 | Andalyze, Inc. | Sensor housing and reagent chemistry |
KR101853296B1 (ko) | 2016-09-13 | 2018-04-30 | (주)포인트엔지니어링 | 마이크로 센서 패키지 및 마이크로 센서 패키지 제조방법 |
GB201703383D0 (en) | 2017-03-02 | 2017-04-19 | Gargle Tech Ltd | Testing for particulates |
WO2020049569A2 (en) | 2018-09-05 | 2020-03-12 | Hero Scientific Ltd. | Testing for particulates |
CA3202405A1 (en) | 2021-01-06 | 2022-07-14 | Zvi Feldman | Filtration sampling devices |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH546090A (de) * | 1973-02-20 | 1974-02-28 | Wasser Sand Forschungs Gmbh | Filtergeraet. |
US4246107A (en) * | 1978-03-06 | 1981-01-20 | Asahi Kasei Kogyo Kabushiki Kaisha | Separation of lymphocytes from lymphocyte-containing suspension by filtration |
FR2443268A1 (fr) * | 1978-12-08 | 1980-07-04 | Boeuf Lola Le | Dispositif de filtration |
DE2921924A1 (de) * | 1979-05-30 | 1980-12-04 | Biotest Serum Institut Gmbh | Geraet zur reversiblen und irreversiblen adsorption von blut und blutbestandteilen |
US4294594A (en) * | 1979-10-02 | 1981-10-13 | United States Surgical Corporation | Self-contained filter assembly for removing air, particles and bacteria from a solution |
EP0083489B1 (en) * | 1982-01-04 | 1989-04-19 | Brunswick Corporation | Membrane systems for filtration |
US4483825A (en) * | 1982-07-09 | 1984-11-20 | Fatches Keith R | Pipette and filter combination |
DE3314937A1 (de) * | 1983-04-25 | 1984-10-31 | Gottfried Prof. Dr. 8057 Eching Pfeiffer | Vorrichtung und verfahren zur erzeugung bzw. freisetzung und abtrennung von substanzen oder partikulaeren gebilden aus fluessiger, plastischer oder fester materie und verwendung der vorrichtung |
DE3578502D1 (de) * | 1984-03-15 | 1990-08-09 | Asahi Medical Co | Filtereinheit zum abtrennen von leukozyten. |
GB8426264D0 (en) * | 1984-10-17 | 1984-11-21 | Alcan Int Ltd | Porous films |
DE8435227U1 (de) * | 1984-12-01 | 1985-02-28 | B. Braun Melsungen Ag, 3508 Melsungen | Filter fuer blutfuehrende leitungssysteme |
-
1988
- 1988-10-10 GB GB888823706A patent/GB8823706D0/en active Pending
-
1989
- 1989-10-02 CA CA002000055A patent/CA2000055A1/en not_active Abandoned
- 1989-10-06 EP EP89310258A patent/EP0364173A1/en not_active Withdrawn
- 1989-10-06 BR BR898905097A patent/BR8905097A/pt unknown
- 1989-10-09 AU AU42683/89A patent/AU4268389A/en not_active Abandoned
- 1989-10-09 DK DK498689A patent/DK498689A/da not_active Application Discontinuation
- 1989-10-09 NO NO89894031A patent/NO894031L/no unknown
- 1989-10-09 JP JP1263777A patent/JPH02152525A/ja active Pending
- 1989-10-10 KR KR1019890014472A patent/KR900006013A/ko not_active Application Discontinuation
- 1989-10-10 CN CN89107896A patent/CN1041706A/zh active Pending
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1055694C (zh) * | 1994-03-02 | 2000-08-23 | 莱克药物与化学公司dd | 分离棒酸及其药学上可接受的盐的新方法 |
CN1303201C (zh) * | 2000-06-09 | 2007-03-07 | 比奥·麦利尤股份有限公司 | 从体积较大的样品中制备要分析的样品 |
CN101732767A (zh) * | 2008-11-10 | 2010-06-16 | 天津市同业科技发展有限公司 | 一种医用负压吸引器除菌防溢过滤器 |
CN104334215A (zh) * | 2012-03-29 | 2015-02-04 | 金普奥膜科技(杭州)有限公司 | 针头过滤装置 |
CN107638614A (zh) * | 2012-03-29 | 2018-01-30 | 金普奥膜科技(杭州)有限公司 | 针头过滤装置 |
CN107638614B (zh) * | 2012-03-29 | 2021-10-15 | 圣戈班高功能塑料(杭州)有限公司 | 针头过滤装置 |
CN105814421A (zh) * | 2013-12-25 | 2016-07-27 | 日本普瑞伦有限公司 | 微孔过滤器的制造方法 |
CN105814421B (zh) * | 2013-12-25 | 2018-03-20 | 日本普瑞伦有限公司 | 微孔过滤器的制造方法 |
CN109925881A (zh) * | 2019-03-13 | 2019-06-25 | 深圳拓扑精膜科技有限公司 | 使用aao多孔膜的可扩展循环过滤装置及系统 |
CN114931777A (zh) * | 2021-04-13 | 2022-08-23 | 上海理工大学 | 一种去除装置及去除方法 |
Also Published As
Publication number | Publication date |
---|---|
EP0364173A1 (en) | 1990-04-18 |
AU4268389A (en) | 1990-04-12 |
NO894031D0 (no) | 1989-10-09 |
DK498689D0 (da) | 1989-10-09 |
BR8905097A (pt) | 1990-05-15 |
JPH02152525A (ja) | 1990-06-12 |
KR900006013A (ko) | 1990-05-07 |
GB8823706D0 (en) | 1988-11-16 |
NO894031L (no) | 1990-04-11 |
DK498689A (da) | 1990-04-11 |
CA2000055A1 (en) | 1990-04-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1041706A (zh) | 微过滤装置 | |
CA2054933C (en) | Filter for parenteral systems | |
US4267053A (en) | Inline intravenous final filter unit | |
US4867876A (en) | Filter plate, filter plate element, and filter comprising same | |
DE69736974T2 (de) | System zur filtration von medizinischen und biologischen flüssigkeiten | |
US5298165A (en) | Method for removing leukocytes and a filter system for removing the same | |
US7520988B2 (en) | Cross-flow filter cassette | |
US4808315A (en) | Porous hollow fiber membrane and a method for the removal of a virus by using the same | |
WO1993022029A1 (en) | Method and device for treating a parenteral emulsion-containing medicament fluid | |
CA2074592A1 (en) | Filter and method for obtaining platelets | |
EP0057907A1 (en) | Apparatus for separating blood components | |
EP1080741B1 (en) | Filter device for processing blood | |
EP1507577A1 (en) | Leukocyte filter construction and a method of use thereof | |
Redkar et al. | Crossflow microfiltration of yeast suspensions in tubular filters | |
EP1008358A2 (en) | Infusion filter | |
CH677737A5 (zh) | ||
KR20130127909A (ko) | 공확산형 또는 유도분별(流導分別)형 막분리장치로 이러한 분리장치를 이용한 방법 | |
JPH08173771A (ja) | 濾過膜のための多孔質のモノリシック支持体 | |
GB2052287A (en) | Medical filtering device | |
JP2000229126A (ja) | 輸液フィルター | |
GB2305370A (en) | Device for Depletion of Leukocytes | |
US20040031744A1 (en) | Infusion filter | |
DE3911697A1 (de) | Verwendung einer aus einem polymeren substrat und einer oberflaechenbeschichtung des substrats mit einem polyacrylsaeure- oder methacrylsaeurederivat aufgebauten mikroporoesen membran zur filtration von bier | |
CA3127798A1 (en) | Method of using track etched membranes for the filtration of biological fluids | |
CN212492414U (zh) | 一种浸没式超滤膜组件 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C01 | Deemed withdrawal of patent application (patent law 1993) | ||
WD01 | Invention patent application deemed withdrawn after publication |