GB1438565A - Blood filter - Google Patents

Blood filter

Info

Publication number
GB1438565A
GB1438565A GB3575173A GB3575173A GB1438565A GB 1438565 A GB1438565 A GB 1438565A GB 3575173 A GB3575173 A GB 3575173A GB 3575173 A GB3575173 A GB 3575173A GB 1438565 A GB1438565 A GB 1438565A
Authority
GB
United Kingdom
Prior art keywords
sheet
series
plastics
rtm
filter
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
Application number
GB3575173A
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.)
Pall Corp
Original Assignee
Pall Corp
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 Pall Corp filed Critical Pall Corp
Publication of GB1438565A publication Critical patent/GB1438565A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D27/00—Cartridge filters of the throw-away type
    • B01D27/04—Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D27/00—Cartridge filters of the throw-away type
    • B01D27/04—Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper
    • B01D27/06—Cartridge filters of the throw-away type with cartridges made of a piece of unitary material, e.g. filter paper with corrugated, folded or wound material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D27/00—Cartridge filters of the throw-away type
    • B01D27/08—Construction of the casing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • 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
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • 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
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B01D2239/0654—Support layers
    • 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
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B01D2239/0668—The layers being joined by heat or melt-bonding
    • 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
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B01D2239/0672—The layers being joined by welding
    • 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
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B01D2239/0681—The layers being joined by gluing
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)
  • Filtration Of Liquid (AREA)
  • Paper (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Filtering Materials (AREA)

Abstract

1438565 Filter series for blood PALL CORP 26 July 1973 [31 July 1972] 35751/73 Heading B1D A blocd filter has a series of two sheet filter elements arranged with the coarser element upstream of the finer. The first element is a sheet of open netting of filamentary plastics material of pore size about 800-4000 microns, and the second a sheet of open mesh plastics monofilament fabric of pore size 20-53 microns. In Fig. 1, the series is folded and gripped at two ends by tongues 27 of a plastics housing, the other sides being sealed to the housing which is made from two halves. In Fig. 4 the series is in the form of a collapsed pleated cylinder sealed in a plastics bag along the lines 52 an entry tube 55 being sealed and enclosed within the filter element series, flow being from inside to outside. The elements may be composed of polypropylene, polyethylene, polyester, polyamide or polycarbonate. The finer sheet, i.e. the second may be a woven square mesh having the filaments locked at their insections. The coarser sheet may be extruded, cast or moulded plastics having filaments joined at intersections. A support or spacer may be present between the two elements and may be of the same material as the coarse element having pores at least as large as the coarse element and within the range 800-10000 microns. The materials may be "Dacron" (RTM), Teflon (RTM), "Vexar" (RTM), "KEL-F" (RTM). The filters may be connected by Luer locks or have conduits shaped as spikes for piercing and joining into blood bags.
GB3575173A 1972-07-31 1973-07-26 Blood filter Expired GB1438565A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27662372A 1972-07-31 1972-07-31

Publications (1)

Publication Number Publication Date
GB1438565A true GB1438565A (en) 1976-06-09

Family

ID=23057422

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3575173A Expired GB1438565A (en) 1972-07-31 1973-07-26 Blood filter

Country Status (15)

Country Link
JP (1) JPS4985663A (en)
AU (1) AU469724B2 (en)
BE (1) BE803019A (en)
CA (1) CA998005A (en)
DE (1) DE2333479C3 (en)
DK (1) DK148875C (en)
FI (1) FI59724C (en)
FR (1) FR2194450B1 (en)
GB (1) GB1438565A (en)
IL (1) IL42727A (en)
IT (1) IT989937B (en)
NL (1) NL7310076A (en)
NO (1) NO131409C (en)
SE (1) SE412520B (en)
ZA (1) ZA734953B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203667A (en) * 1987-04-21 1988-10-26 Polden Products Limited Filter for mastitis detection
EP2500077A1 (en) * 2011-03-17 2012-09-19 Sefar AG Filter element with two woven layers
CN111315421A (en) * 2017-10-24 2020-06-19 布法罗过滤器有限责任公司 Method and apparatus for filtration

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS544121Y2 (en) * 1974-07-05 1979-02-23
US4066556A (en) * 1976-10-28 1978-01-03 Johnson & Johnson Fluid filter and method of making same
US4187182A (en) * 1978-07-21 1980-02-05 Pall Corporation Box filter
DE2905514C2 (en) * 1979-02-14 1987-03-05 Fresenius AG, 6380 Bad Homburg Blood filter
ES2005028A6 (en) * 1986-10-06 1989-02-16 Terumo Corp Blood component separator.
DE9201574U1 (en) * 1992-02-08 1992-04-23 Medimex Holfeld GmbH & Co., 2000 Hamburg Adapter for connecting a tube catheter with a conical connector

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203667A (en) * 1987-04-21 1988-10-26 Polden Products Limited Filter for mastitis detection
GB2203667B (en) * 1987-04-21 1991-01-09 Polden Products Limited Filter assembly, e.g. for mastitis detection
EP2500077A1 (en) * 2011-03-17 2012-09-19 Sefar AG Filter element with two woven layers
WO2012123047A1 (en) * 2011-03-17 2012-09-20 Sefar Ag Filter element having two woven fabric layers
CN111315421A (en) * 2017-10-24 2020-06-19 布法罗过滤器有限责任公司 Method and apparatus for filtration

Also Published As

Publication number Publication date
NO131409B (en) 1975-02-17
FR2194450A1 (en) 1974-03-01
AU469724B2 (en) 1976-02-19
AU5768873A (en) 1975-01-09
CA998005A (en) 1976-10-05
BE803019A (en) 1974-01-31
IT989937B (en) 1975-06-10
ZA734953B (en) 1974-07-31
FI59724B (en) 1981-06-30
NL7310076A (en) 1974-02-04
FI59724C (en) 1981-10-12
DK148875C (en) 1986-04-14
FR2194450B1 (en) 1977-08-05
NO131409C (en) 1975-05-28
DE2333479A1 (en) 1974-02-21
DE2333479B2 (en) 1976-11-18
JPS4985663A (en) 1974-08-16
DK148875B (en) 1985-11-04
IL42727A0 (en) 1973-10-25
DE2333479C3 (en) 1979-11-22
SE412520B (en) 1980-03-10
IL42727A (en) 1976-10-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
SP Amendment (slips) printed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)