CA2606540A1 - Check valve, especially for medical use - Google Patents

Check valve, especially for medical use Download PDF

Info

Publication number
CA2606540A1
CA2606540A1 CA002606540A CA2606540A CA2606540A1 CA 2606540 A1 CA2606540 A1 CA 2606540A1 CA 002606540 A CA002606540 A CA 002606540A CA 2606540 A CA2606540 A CA 2606540A CA 2606540 A1 CA2606540 A1 CA 2606540A1
Authority
CA
Canada
Prior art keywords
valve seat
formation
hose connector
space
membrane disk
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.)
Granted
Application number
CA002606540A
Other languages
French (fr)
Other versions
CA2606540C (en
Inventor
Jan Willem Marinus Mijers
Brendan Hogan
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.)
Illinois Tool Works Inc
Original Assignee
Filtertek B.V.
Jan Willem Marinus Mijers
Brendan Hogan
Illinois Tool Works Inc.
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 Filtertek B.V., Jan Willem Marinus Mijers, Brendan Hogan, Illinois Tool Works Inc. filed Critical Filtertek B.V.
Publication of CA2606540A1 publication Critical patent/CA2606540A1/en
Application granted granted Critical
Publication of CA2606540C publication Critical patent/CA2606540C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • A61M39/24—Check- or non-return valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • 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
    • A61M39/24—Check- or non-return valves
    • A61M2039/242—Check- or non-return valves designed to open when a predetermined pressure or flow rate has been reached, e.g. check valve actuated by fluid
    • 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
    • A61M39/24—Check- or non-return valves
    • A61M2039/2433—Valve comprising a resilient or deformable element, e.g. flap valve, deformable disc
    • 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
    • A61M39/24—Check- or non-return valves
    • A61M2039/2433—Valve comprising a resilient or deformable element, e.g. flap valve, deformable disc
    • A61M2039/2446—Flexible disc
    • A61M2039/246—Flexible disc being fixed along all or a part of its periphery

Abstract

The invention relates to a non-return valve, particularly for medial applications, comprising a first tube connection housing (2), a second tube connection housing (4) and a diaphragm disk (6), which is made of flexible material, is placed between both tube connection housings, and which, in the existence of an excess pressure inside an entry passage in the first tube connection housing, can be lifted off from a valve seat (12) annularly surrounding an inlet space connected to the entry passage (8). In the existence of an excess pressure inside an outlet passage (24), the diaphragm disk can be securely pressed against the valve seat in the shortest of times, and is provided with an annular bead (14) on its outer peripheral area. This annular bead is accommodated inside opposing annular grooves of the hose connection housing. The diaphragm disk is provided with openings (20) radially outside the valve seat that are connected to an outlet space. A formation (28), which lies on the side of the diaphragm disk (6) facing the outlet space (22) and which holds or prestresses the diaphragm disk (6) in the direction of the inlet space (10), is provided on the wall (26) of the second tube connection housing (4) located opposite the diaphragm disk (6). Said formation (28) is placed inside the boundary given by the valve seat (12).

Claims (4)

1. Check valve, especially for medical applications, having a first hose connector housing and a second hose connector hous-ing and a membrane disk of a flexible material positioned be-tween the two hose connector housings which with an overpres-sure in an entry passage in the first hose connector housing can be lifted from an annular valve seat surrounding an entry space connected to the entry passage and which with over -pressure in an exit passage safely and in minimal time can be pressed onto the valve seat, wherein the membrane disk at the outer circumference thereof is having an annular protrusion being received in annular grooves positioned opposite to each other in the hose connector housings, wherein the membrane disk radially exterior of the valve seat is provided with openings which are connected with an exit space, and wherein on the wall (26) of the second hose connector housing (4) be-ing positioned opposite to the membrane disk (6) there is pro-vided a formation (28) directed towards the membrane disk (6) on the side facing the exit space (22), characterized in that the formation (28) is holding or pre-tensioning, respectively, the membrane disk (6) in the direction of the entry space (10), in that the formation (28) is positioned within the lim-its defined by the valve seat (12) and, in that the opening pressure of the valve (1) is determined by the distance be-tween the formation (28) and the valve seat (12).
2. Check valve according to claim 1, characterized in that the formation (28) is performed as being pervious by media.
3. Check valve according to claim 1 or 2, characterized in that the formation (28) is formed by a number of projections (30) which are surrounding the entry opening (32) of the exit passage (24) from the exit space (22) in the shape of a crown.
4. Check valve according to any of the preceding claims, char-acterized in that the projections (30) are monolithic with the second hose connector housing (4).
CA2606540A 2004-06-17 2005-06-15 Check valve, especially for medical use Active CA2606540C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE200420009521 DE202004009521U1 (en) 2004-06-17 2004-06-17 Check valve, in particular for medical applications
DE202004009521.1 2004-06-17
PCT/EP2005/006425 WO2005123176A1 (en) 2004-06-17 2005-06-15 Non-return valve, particularly for medical applications

Publications (2)

Publication Number Publication Date
CA2606540A1 true CA2606540A1 (en) 2005-12-29
CA2606540C CA2606540C (en) 2010-11-09

Family

ID=32946721

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2606540A Active CA2606540C (en) 2004-06-17 2005-06-15 Check valve, especially for medical use

Country Status (4)

Country Link
EP (1) EP1755730B1 (en)
CA (1) CA2606540C (en)
DE (2) DE202004009521U1 (en)
WO (1) WO2005123176A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10357600B2 (en) 2013-12-11 2019-07-23 Gambro Lundia Ab Extracorporeal blood treatment system, disposable set and valve unit for pre/post infusion

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004027734A1 (en) 2004-06-07 2005-12-22 Filtertek B.V., Newcastle West Device for connecting a ventilator with the patient
US7673653B2 (en) 2004-06-17 2010-03-09 Filtertek Inc. Check valve
DE202006016730U1 (en) * 2006-10-30 2007-01-04 Filtertek B.V. Nonreturn valve useful in medical equipment comprises a tube connector with recesses that are separated by membrane support surfaces and are connected to an outlet channel via narrow deep grooves
DE202004009521U1 (en) * 2004-06-17 2004-09-02 Filtertek B.V. Check valve, in particular for medical applications
DE202004009831U1 (en) 2004-06-22 2004-08-26 Filtertek B.V. check valve
DE202005010459U1 (en) 2004-11-22 2005-10-13 Filtertek B.V., Newcastle West Device for introducing air into containers used in artificial nutrition
DE102010022410A1 (en) 2010-06-01 2011-12-01 Filtertek B.V. Check valve, in particular for medical applications
US9901676B2 (en) 2013-06-17 2018-02-27 Illinois Tool Works Inc. Bidirectional valve with improved threshold pressure accuracy

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB439278A (en) * 1934-04-27 1935-12-03 Jan Horak Improvements in and relating to exhalation valves for gas protection masks
US4188978A (en) * 1972-11-27 1980-02-19 Plasto-Matic Valves, Inc. Valve mechanism
DE4304949C2 (en) * 1993-02-18 1996-07-18 Filtertek Sa Check valve for medical applications in fluid technology
DE202004009521U1 (en) * 2004-06-17 2004-09-02 Filtertek B.V. Check valve, in particular for medical applications

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10357600B2 (en) 2013-12-11 2019-07-23 Gambro Lundia Ab Extracorporeal blood treatment system, disposable set and valve unit for pre/post infusion

Also Published As

Publication number Publication date
EP1755730A1 (en) 2007-02-28
DE502005009277D1 (en) 2010-05-06
WO2005123176A1 (en) 2005-12-29
EP1755730B1 (en) 2010-03-24
CA2606540C (en) 2010-11-09
DE202004009521U1 (en) 2004-09-02

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