WO2000037128A1 - Soupape de regulation d'ecoulement fluidique - Google Patents

Soupape de regulation d'ecoulement fluidique Download PDF

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Publication number
WO2000037128A1
WO2000037128A1 PCT/IL1999/000688 IL9900688W WO0037128A1 WO 2000037128 A1 WO2000037128 A1 WO 2000037128A1 IL 9900688 W IL9900688 W IL 9900688W WO 0037128 A1 WO0037128 A1 WO 0037128A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
membrane
fluid
valve according
fluid flow
Prior art date
Application number
PCT/IL1999/000688
Other languages
English (en)
Inventor
Adi Shfaram
Zvi Barak
Original Assignee
Aran Engineering Development Ltd.
Caesaria Medical Electronic Ltd.
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 Aran Engineering Development Ltd., Caesaria Medical Electronic Ltd. filed Critical Aran Engineering Development Ltd.
Priority to AU16782/00A priority Critical patent/AU1678200A/en
Publication of WO2000037128A1 publication Critical patent/WO2000037128A1/fr

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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • 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
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16877—Adjusting flow; Devices for setting a flow rate
    • A61M5/16881—Regulating valves

Definitions

  • the present invention is in the field of fluid flow control valves, such as for .use in medical fluid administration sets, etc.
  • liquid flow control valves are known.
  • Typical prior art flow valves are fitted on a fluid supply line and comprise a membrane sealingly engaging a closure between an upstream portion and a downstream portion of the supply line, which upon exposure to a predetermined pressure, the membrane deforms to open a flow path towards the upstream portion.
  • the membrane comprises one or more apertures such as pre-pierced or pre-slotted apertures which in a non deformed position, the apertures are closed.
  • a fluid valve comprising a housing fitted with a first port being in flow communication with a first chamber, and a second port being in fluid communication with a second chamber coaxial with the first chamber; a fluid flow path extending between the chambers; a resilient membrane tensioned over the fluid flow path and over the first chamber and the second chamber so as to close the fluid flow path, said membrane having one face thereof exposed to atmospheric pressure; the arrangement being such that when differential pressure
  • the membrane flexes and opens the fluid flow path allowing fluid flow between the first chamber and the second chamber.
  • the valve is formed with a priming member for manually displacing the membrane to disengage from the fluid flow path and open it.
  • the priming member is a stem projecting from a wall of the first chamber connected to other portions of the first chamber via a flexible zone, whereby displacing the wall towards the membrane entails displacing the membrane and priming of the valve.
  • the priming member is biased to disengage from the membrane.
  • the flexible zone of the first chamber is resilient and is biased to resume its original shape.
  • the valve further comprises a retention member for retaining the priming member in its displaced position, -thereby keeping the fluid flow path open.
  • a locking arrangement for arresting the retention member in a position in which the fluid flow path is kept open.
  • the first port and the second port coaxially extend from the housing along an axis normal to the axis of the chambers
  • the retention member is a bridge-like element comprising a retaining portion for engaging the wall portion, and two arms, each engaged with one of the first or second port, respectively, and being rotatable about the port's axis.
  • the first chamber is a well-like enclosure having a bottom wall portion communicating with other portions of the first chamber via a flexible zone.
  • a top, rimmed edge separates between the first and second chambers and forms the fluid flow path and over which the membrane is tensioned.
  • the housing further comprises a venting cover positioned in close proximity to the flexible membrane whereby in its flexed state the jnembrane bears against the venting cover.
  • the venting cover is fitted with one or more venting apertures.
  • the venting cover also secures the membrane to the housing along a peripheral edge thereof.
  • the one or more apertures are preferably formed at peripheral portions of the venting cover.
  • the valve according to the present invention may be a Bi-directional valve and the cross-sectional area of the membrane over the first chamber may be similar or different to the cross-sectional area of the membrane over the second chamber, whereby the differential pressure required to open the flow path in one direction may be different than the differential pressure required to open the flow path in the other direction.
  • Fig. 1 is a longitudinal cross-section of a valve according to the present invention, the valve in its closed position;
  • Fig. 2 is an isometric view of the valve seen in Fig. 1;
  • Fig. 3 is a longitudinal cross-section of the valve according to the present invention, the valve in its open position;
  • Fig. 4 is a longitudinal cross-section of the valve according to the present invention in a priming position, with a priming retainer in its locked position; and Fig. 5 is an isometric view of the valve in the position seen in Fig. 4.
  • FIGs. 1 and 2 of the drawings illustrating a valve generally designated 10 comprising a cylindrical housing 12 formed with a first, inlet port 14 extending into a first, inlet chamber 16, the latter being coaxial with the housing 12.
  • First chamber 16 is formed by a well-like member 17 snapingly engaging the housing 12.
  • a second, outlet port 18 is coaxial with the inlet port 14 and extends into a second, outlet chamber 20, which in fact is in the shape of an annulus which is coaxial with the first chamber 16 and which have a common separating wall 22 terminating at a rimmed annular edge 24 which defines a fluid flow path between the first and second chambers as will hereinafter be explained.
  • a resilient membrane 26 is securely attached to the housing 12 by a venting cover 28 snapingly fitted to the housing 12, where the membrane 26 sealingly bears against the rimmed annular edge 24, thus sealing the first and second chambers 16 and 20, respectively, and the flow path 24 extending between the chambers.
  • venting cover 28 is fitted with a venting aperture 30 at a peripheral portion of the cover, for the reason to become apparent hereinafter. It will further be noted that the vented cover 28 is in close proximity to the membrane 26, though leaving a clearance 32 therebetween, wherein atmospheric pressure exists.
  • a stem-like priming member 40 extends from a bottom wall portion 42 of the first chamber 16, said stem-member 40 extending almost towards a bottom surface of the membrane 26 leaving a clearance between its upper end 41 and membrane 26.
  • Well-like member 17 has a resilient, deformable portion 43 communicating with snapping wall portion 44. In the position shown in Fig. 1 the resilient portion is in its non-deformed position.
  • a retention member 46 (best seen in Fig. 2) has a bridge-like shape with two annular portions 48 and 50 rotatably engaged over inlet port 14 and outlet port 18, respectively.
  • a bridging portion 52 has at a central portion thereof a bulge 54 for engagement with depression a 56 formed at a lowermost, central portion of the well-like portion 17.
  • valve is shown in its position after applying pressurized fluids through inlet port 14 entailing flexion of the membrane 26 to disengage the rimmed annular edge 24, thus opening the fluid flow path between the first, inlet chamber 16 and the second, outlet chamber 20, permitting fluid egress via the outlet port 18, as illustrated by arrows.
  • first and second ports and the first and second chambers may change their functions, respectively, i.e. the second port 18 may serve as an inlet port and the first inlet port 14 may serve as an outlet port with the second chamber 20 serving as an inlet chamber and the first chamber 16 serving as an outlet chamber, respectively.
  • the valve may be used as a uni-directional valve or as a
  • Bi-directional valve with equal or different pressures required for opening the valve in either direction.
  • a valve e.g. to drain gases from a liquid supply line or to rinse a supply line prior to administrating fluids.
  • a non- limiting example where such priming means are required are valves used in medical liquid administration.
  • Fig. 3 i.e., opening the flow path 24 between the chambers, enabling flow through the valve.
  • the design of the housing may be different than the specific design illustrated herein, e.g. the manner in which the venting cover and the bottom portion are engaged with the housing, location of the resilient portion, etc., mutatis mutandis.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Pulmonology (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Vascular Medicine (AREA)
  • Check Valves (AREA)

Abstract

Cette soupape pour fluides comprend un logement équipé d'un premier orifice en communication fluidique avec une première chambre et un second orifice en communication fluidique avec une seconde chambre coaxiale à la première. Un passage pour écoulement fluidique s'étend entre les chambres et une membrane élastique se trouve au-dessus des deux chambres, de manière à fermer ledit passage. L'une des faces de la membrane est soumise aux effets de la pression atmosphérique. Du fait de cet agencement, lorsque la pression différentielle s'exerçant sur la membrane dépasse un seuil prédéfini, celle-ci fléchit et ouvre le passage pour écoulement fluidique, autorisant un écoulement fluidique entre les deux chambres.
PCT/IL1999/000688 1998-12-22 1999-12-16 Soupape de regulation d'ecoulement fluidique WO2000037128A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU16782/00A AU1678200A (en) 1998-12-22 1999-12-16 Fluid flow control valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL12768198A IL127681A0 (en) 1998-12-22 1998-12-22 Fluid flow control valve
IL127681 1998-12-22

Publications (1)

Publication Number Publication Date
WO2000037128A1 true WO2000037128A1 (fr) 2000-06-29

Family

ID=11072289

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL1999/000688 WO2000037128A1 (fr) 1998-12-22 1999-12-16 Soupape de regulation d'ecoulement fluidique

Country Status (3)

Country Link
AU (1) AU1678200A (fr)
IL (1) IL127681A0 (fr)
WO (1) WO2000037128A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001019449A1 (fr) * 1999-09-16 2001-03-22 Fresenius Ag Vanne
WO2004013523A2 (fr) * 2002-08-01 2004-02-12 Baxter International Inc. Soupape de depression pour ecoulement a la demande
JP2006026270A (ja) * 2004-07-21 2006-02-02 Woo Young Medical Co Ltd 薬液注入装置
EP1897585A1 (fr) * 2006-09-07 2008-03-12 Swi Barak Soupape de contrôle anti-siphon
CN103237572A (zh) * 2010-11-11 2013-08-07 奇姆德恩医疗有限公司 用于阻止空气进入静脉注射回路的阀
WO2013177358A1 (fr) * 2012-05-23 2013-11-28 Alcon Research, Ltd. Valve de membrane ayant une pression de fissuration cible prédéterminée
WO2014185905A1 (fr) * 2013-05-15 2014-11-20 Becton, Dickinson And Company Régulateurs de pression négative pour utilisation lors d'un prélèvement de sang
US9162038B2 (en) 2011-04-11 2015-10-20 The Spectranetics Corporation Needle and guidewire holder
US9226851B2 (en) 2013-08-24 2016-01-05 Novartis Ag MEMS check valve chip and methods
US9283039B2 (en) 2006-04-04 2016-03-15 The Spectranetics Corporation Laser-assisted guidewire having a variable stiffness shaft
WO2016081843A1 (fr) * 2014-11-21 2016-05-26 California Institute Of Technology Systèmes d'administration de médicament de type micro-aiguille
US10357192B2 (en) 2013-05-15 2019-07-23 Becton, Dickinson And Company Vacuum pressure regulators for use during blood collection
US11083870B2 (en) 2011-04-11 2021-08-10 The Spectranetics Corporation Hypotube based support catheter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436273A (en) * 1965-07-22 1969-04-01 Jean Louis Gratzmuller Safety valve intended mainly for electric batteries
US5190527A (en) * 1989-09-25 1993-03-02 Baxter International Inc. Intravenous metering device
US5195986A (en) * 1986-03-04 1993-03-23 Deka Products Limited Partnership Integral intravenous fluid delivery device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436273A (en) * 1965-07-22 1969-04-01 Jean Louis Gratzmuller Safety valve intended mainly for electric batteries
US5195986A (en) * 1986-03-04 1993-03-23 Deka Products Limited Partnership Integral intravenous fluid delivery device
US5190527A (en) * 1989-09-25 1993-03-02 Baxter International Inc. Intravenous metering device

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001019449A1 (fr) * 1999-09-16 2001-03-22 Fresenius Ag Vanne
WO2004013523A2 (fr) * 2002-08-01 2004-02-12 Baxter International Inc. Soupape de depression pour ecoulement a la demande
WO2004013523A3 (fr) * 2002-08-01 2004-08-19 Baxter Int Soupape de depression pour ecoulement a la demande
JP2006026270A (ja) * 2004-07-21 2006-02-02 Woo Young Medical Co Ltd 薬液注入装置
US9283039B2 (en) 2006-04-04 2016-03-15 The Spectranetics Corporation Laser-assisted guidewire having a variable stiffness shaft
US11445892B2 (en) 2006-04-04 2022-09-20 The Spectranetics Corporation Laser-assisted guidewire having a variable stiffness shaft
EP1897585A1 (fr) * 2006-09-07 2008-03-12 Swi Barak Soupape de contrôle anti-siphon
CN103237572A (zh) * 2010-11-11 2013-08-07 奇姆德恩医疗有限公司 用于阻止空气进入静脉注射回路的阀
US11083870B2 (en) 2011-04-11 2021-08-10 The Spectranetics Corporation Hypotube based support catheter
US9162038B2 (en) 2011-04-11 2015-10-20 The Spectranetics Corporation Needle and guidewire holder
US10292727B2 (en) 2011-04-11 2019-05-21 The Spectranetics Corporation Needle and guidewire holder
US9668766B2 (en) 2011-04-11 2017-06-06 The Spectranetics Corporation Needle and guidewire holder
WO2013177358A1 (fr) * 2012-05-23 2013-11-28 Alcon Research, Ltd. Valve de membrane ayant une pression de fissuration cible prédéterminée
US8858491B2 (en) 2012-05-23 2014-10-14 Alcon Research, Ltd. Pre-biased membrane valve
US20160089070A1 (en) * 2013-05-15 2016-03-31 Becton, Dickinson And Company Vacuum Pressure Regulators for Use During Blood Collection
JP2016523591A (ja) * 2013-05-15 2016-08-12 ベクトン・ディキンソン・アンド・カンパニーＢｅｃｔｏｎ， Ｄｉｃｋｉｎｓｏｎ Ａｎｄ Ｃｏｍｐａｎｙ 採血時に使用するための真空圧調整器
AU2013389306B2 (en) * 2013-05-15 2017-03-16 Becton, Dickinson And Company Vacuum pressure regulators for use during blood collection
CN105307706A (zh) * 2013-05-15 2016-02-03 贝克顿·迪金森公司 在血液采集期间所使用的真空压力调节器
CN109602427A (zh) * 2013-05-15 2019-04-12 贝克顿·迪金森公司 在血液采集期间所使用的真空压力调节器
US10357192B2 (en) 2013-05-15 2019-07-23 Becton, Dickinson And Company Vacuum pressure regulators for use during blood collection
US10888262B2 (en) 2013-05-15 2021-01-12 Becton, Dickinson And Company Vacuum pressure regulators for use during blood collection
WO2014185905A1 (fr) * 2013-05-15 2014-11-20 Becton, Dickinson And Company Régulateurs de pression négative pour utilisation lors d'un prélèvement de sang
CN109602427B (zh) * 2013-05-15 2022-05-27 贝克顿·迪金森公司 在血液采集期间所使用的真空压力调节器
US9226851B2 (en) 2013-08-24 2016-01-05 Novartis Ag MEMS check valve chip and methods
WO2016081843A1 (fr) * 2014-11-21 2016-05-26 California Institute Of Technology Systèmes d'administration de médicament de type micro-aiguille

Also Published As

Publication number Publication date
IL127681A0 (en) 1999-10-28
AU1678200A (en) 2000-07-12

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