• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1510072 Filter for parenteral liquids BAXTER TRAVENOL LABORATORIES INC 8 March 1976 [13 June 1975] 9142/76 Heading B1D A filter assembly suitable for use with a parenteral liquid administration apparatus and designed to be non - air - blocking, comprises a housing 52 having a liquid inlet 40 and a liquid outlet 60 and accommodating a filter comprising separate first and second filter members 48, 50 arranged in parallel, one being hydrophilic in nature to allow passage of aqueous liquid and the other being hydrophobic in nature to permit the passage of gas after the filter members have been in contact with aqueous liquid, the filter members being closed from the exterior of the assembly by the housing. The filter members may be fixed in oppositely positioned openings in a tubular support member 43 open at the inlet end but closed at the outlet end. The hydrophilic element may be a copolymer of polyvinyl chloride and acrylonitrile on nylon fabric with an effective pore size of 5 microns or 3 microns. The hydrophobic element may be an organo - silicon treated material of the same composition and pore size or smaller effective pore size, e.g. 3 microns or 1 - 5 microns, or it may be a porous polytetrafluoroethylene membrane.
    公开号:SU904504A3
    申请号:SU762337399
    申请日:1976-03-24
    公开日:1982-02-07
    发明作者:Шелдон Джесс Тармэн
    申请人:Бакстер Травенол Лабораториз, Инк (Инофирма)；
    IPC主号:
    专利说明:

    (5) DEVICE FOR ADMINISTRATING A PATIENT
    one
    This invention relates to medical technology, namely to injectors.
    A device for administering a fluid to a patient is known, which contains cannulae connected to the tubes for an injection needle and a filter consisting of two parts, hydrophilic and hydrophobic 13.
    However, during operation of the known device, the probability of the pores clogging of the hydrophilic part of its filter, the formation of an airlock is not excluded, which leads to a halt in the process of introducing a liquid to remove the plug. Subsequent disassembly of the filter may impair sterility of the device.
    The aim of the invention is to prevent clogging of the pores of the hydrophilic part of the filter.
    This goal is achieved by the fact that in the device the filter is installed in a hermetic casing, the hydrophilic and hydrophobic parts are separated from one another and form separate chambers with the casing for separate passage of fluid.
    FIG. 1 shows a device 5 for administering a fluid to a patient, general view; in fig. 2 - filter, longitudinal section; in fig. 3 view A in FIG. 2; in fig. k is a section BB in FIG. 2
    10 The device contains an element 1 for connection to a container with a liquid and a dropper 2 connected to the element 1, to which the tube 3 is connected with a clip 4. At the other end of the tube
    权利要求:
    Claims (1)
    [1]
    IS 3 has a vessel 5 for accommodating an additional medicinal substance with a fitting 6 to which filter 7 is connected. To the output end of the latter, a tube 8 is connected, at the other end of which a cannula 9 for the injection needle shown in the drawing is installed. The filter 7 consists of an outer case 10 and an inner body part 11 with two 3 diametrically opposed windows 12 and 13. The windows are covered from the inside with a hydrophilic If and a hydrophobic 15 pieces, which are separated from each other and form separate chambers with the case 10. fluid. The body part P is supplied at the closed end part 16, which forms annular gaps 17 and 18 with the inner surface of the body 10. The gaps 1 and 18 serve to communicate the inner chambers of the filter with the outlet nipple 19. The device works as follows. When the patient is injected into the patient, the path to the injection needle flows through the filter 7. Moreover, the fluid inside the body part 11 splits into equal flows, each of which passes through the corresponding hydrophilic and hydrophobic parts k and 15. Then the separated flows pass through The corresponding internal chambers of the filter. And, mine, the annular gaps 17 and 18 merge into a joint flow in the outlet fitting 19. During the introduction of the liquid, the hydrophilic cup and filter are moistened, which obstructs the passage of gases. 4 However, the formation of a gas bubble and clogging of the filter does not occur, as gas bubbles continue to flow through the hydrophobic part 15 of the filter. Thus, the design of the proposed device helps to prevent clogging of the pores of the hydrophilic part of the filter, ensuring high reliability of the introduction of the filtered fluid to the patient. Apparatus of the Invention A device for administering a liquid to a patient, comprising a cannula for an injection needle connected to the tubing and a filter consisting of two parts — a hydrophilic and hydrophobic mold. , hydrophilic and hydrophobic parts are separated from one another and form separate chambers for separate passage of fluid. Information sources that are taken into account in examination 1. US patent No. 3650093, paragraph 210-321, publ. a. 1972
    .
    f. / ff
    Phg / g.Z.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU904504A3|1982-02-07|Device for injecting liquid to patient
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    US4013072A|1977-03-22|Drip chamber for intravenous administration
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    US3854907A|1974-12-17|Vented filter holder
    JP3784071B2|2006-06-07|Dialysis blood piping set
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    US3993062A|1976-11-23|Hydrophobic valve
    KR101535350B1|2015-07-09|Capillary device comprising at least one inside filter and medicine injection apparatus comprising the same
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    JPH0722600B2|1995-03-15|Catheter, ▲ irrigation unit and ▲ connection device for flask of fluid to be irrigated
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    US6537356B1|2003-03-25|Gas and solid trap for an intravenous line
    GB1295934A|1972-11-08|
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    US4188948A|1980-02-19|Filter device
    JP2607192B2|1997-05-07|Passive drug release socket
    US3970084A|1976-07-20|Intravenous injection apparatus and needle adapter with filter and method of making same
    JP2008055168A|2008-03-13|Dosing device for dosing fluid drug
    同族专利:
    公开号 | 公开日
    BE840162A|1976-07-16|
    FR2313944B1|1982-02-26|
    IL49000A|1979-01-31|
    CA1036955A|1978-08-22|
    GB1510072A|1978-05-10|
    NL7602382A|1976-12-15|
    AU497530B2|1978-12-14|
    ES448841A1|1977-11-01|
    ZA76753B|1977-01-26|
    IL49000D0|1976-04-30|
    AU1143776A|1977-09-01|
    DE2608405A1|1977-03-03|
    SE7602833L|1976-12-14|
    US4004587A|1977-01-25|
    FR2313944A1|1977-01-07|
    BR7602599A|1977-05-10|
    JPS5291A|1977-01-05|
    SE427523B|1983-04-18|
    引用文献:
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    US3631654A|1968-10-03|1972-01-04|Pall Corp|Gas purge device|
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    US3854907A|1973-12-10|1974-12-17|Millipore Corp|Vented filter holder|
    JPS544121Y2|1974-07-05|1979-02-23|
    US4013072A|1975-11-03|1977-03-22|Baxter Travenol Laboratories, Inc.|Drip chamber for intravenous administration|
    US4031891A|1975-11-03|1977-06-28|Baxter Travenol Laboratories, Inc.|Air eliminating filter|US4116646A|1977-05-20|1978-09-26|Millipore Corporation|Filter unit|
    US4200095A|1977-08-15|1980-04-29|Millipore Corporation|Arrangement for intravenous administration or the like|
    US4190426A|1977-11-30|1980-02-26|Baxter Travenol Laboratories, Inc.|Gas separating and venting filter|
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    US4294594A|1979-10-02|1981-10-13|United States Surgical Corporation|Self-contained filter assembly for removing air, particles and bacteria from a solution|
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    US4411795A|1980-03-10|1983-10-25|Baxter Travenol Laboratories, Inc.|Particle adsorption|
    US4340067A|1980-03-31|1982-07-20|Rattenborg Christen C|Blood collection syringe|
    US4336036A|1981-01-08|1982-06-22|Amf Incorporated|Filter and method of making same|
    US4515606A|1981-03-19|1985-05-07|Brunswick Corporation|Gas separating and venting filter|
    JPS6344083Y2|1981-04-21|1988-11-16|
    US4412916A|1981-06-24|1983-11-01|Cordis Dow Corp.|Airless artificial kidney assembly|
    US4459139A|1981-09-14|1984-07-10|Gelman Sciences Inc.|Disposable filter device and liquid aspirating system incorporating same|
    DE3147499A1|1981-12-01|1983-06-09|B. Braun Melsungen Ag, 3508 Melsungen|"VENTILATION DEVICE FOR A MEDICAL LIQUID SYSTEM"|
    DK148467C|1983-02-21|1985-12-16|Radiometer As|BLOOD SAMPLING EQUIPMENT|
    EP0151108A1|1983-05-31|1985-08-14|Baxter Travenol Laboratories, Inc.|Particle adsorption|
    US4636313A|1984-02-03|1987-01-13|Vaillancourt Vincent L|Flexible filter disposed within flexible conductor|
    US4615694A|1985-02-15|1986-10-07|Burron Medical Inc.|Vented cone filter|
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    US4787921A|1986-06-13|1988-11-29|Japan Gore-Tex, Inc.|Degassing tube|
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    US5034064A|1988-09-01|1991-07-23|Snow Brand Milk Products Co., Ltd.|Production process of high-purity lactulose syrup|
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    JP6900274B2|2017-08-16|2021-07-07|株式会社Ｓｃｒｅｅｎホールディングス|Chemical supply device, substrate processing device, chemical solution supply method, and substrate processing method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/586,665|US4004587A|1975-06-13|1975-06-13|Parenteral liquid administration set with non-air blocking filter|
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