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WO2009002468A1 - Connecteur aseptique à joint statique rigide - Google Patents

Connecteur aseptique à joint statique rigide Download PDF

Info

Publication number
WO2009002468A1
WO2009002468A1 PCT/US2008/007784 US2008007784W WO2009002468A1 WO 2009002468 A1 WO2009002468 A1 WO 2009002468A1 US 2008007784 W US2008007784 W US 2008007784W WO 2009002468 A1 WO2009002468 A1 WO 2009002468A1
Authority
WO
WIPO (PCT)
Prior art keywords
connector
gasket
flange
genderless
tabs
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.)
Ceased
Application number
PCT/US2008/007784
Other languages
English (en)
Inventor
Theodore D. Johnson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority claimed from US12/214,875 external-priority patent/US20090015005A1/en
Publication of WO2009002468A1 publication Critical patent/WO2009002468A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • F16L23/167—Flanged joints characterised by the sealing means in connection with the appearance or detection of leaks
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
    • 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
    • A61M39/10—Tube connectors; Tube couplings
    • A61M2039/1027—Quick-acting type connectors
    • 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
    • A61M39/10—Tube connectors; Tube couplings
    • A61M2039/1066—Tube connectors; Tube couplings having protection means, e.g. sliding sleeve to protect connector itself, shrouds to protect a needle present in the connector, protective housing, isolating sheath
    • 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
    • A61M39/10—Tube connectors; Tube couplings
    • A61M2039/1094—Tube connectors; Tube couplings at least partly incompatible with standard connectors, e.g. to prevent fatal mistakes in connection
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2201/00—Special arrangements for pipe couplings
    • F16L2201/40—Special arrangements for pipe couplings for special environments
    • F16L2201/44—Special arrangements for pipe couplings for special environments sterile

Definitions

  • flange connections are often used to support a sheet of filtration material. Because of this, the pressure in the vicinity of the connectors is elevated, even more so as the filter material clogs. In such an environment, connectors must be able to form a seal which is resistant to leaking or admitting pollutants at high pressure.
  • the connectors must be sterile, such as in the pharmaceutical industry, (drug preparation and testing) or research in the biological sciences. While research involving biological systems may not necessarily involve high pressures, the ability to form a sterile seal is as important as the ability to form a pressure-tight seal. This ability depends on the ability to form a seal, but also on external factors, such as the processing, storage and handling of the connector.
  • Connectors have traditionally required two differently designed connectors in order to form a seal: 1) a "male” connector, which often has a member which can be insertably fitted into
  • Such connectors have a disadvantage in that their manufacture requires two different designs and are thus inherently expensive to manufacture and use, requiring the user to purchase and store separate lots of connectors.
  • the use of elastomeric gaskets has heretofore been thought as one of the best ways to ensure the most effective seal.
  • Elastomeric gaskets are used in standard connectors to enhance the sealing efficiency of a double wall contact.
  • elastomeric gaskets are thought to enhance the seal by deforming to completely fill the double cavity formed by pressing two connector flanges together.
  • the gasket provides a degree of support to the inner and outer wall of the cavity, reducing the incidence of inner wall buckling, and in case buckling does occur, also prevents leakage from the inner wall from reaching the outer wall.
  • the present invention comprises a flange connector designed so that, if desired, it can be produced as a genderless connector, the connector further comprising an annular cavity in the flange, and a rigid gasket which can reside in the cavity.
  • a sterile genderless connector as above, with an insert subassembly membrane disposed across the connecting surface of the flange for maintaining sterile conditions.
  • a sterile, genderless connector which additionally comprises a retentive cap.
  • a sterile, genderless connector which additionally comprises a shrink band.
  • connection it is meant that the connectors which form the connection are designed in such a way that a connection is comprised of two parts which, upon forming the connection, do not interact in a "male-female” fashion, i.e., the coupling does not take place by the insertion of a "male” part into a “female” part, but is comprised of two structurally identical members. Each of the members is referred to as “genderless.”
  • flange connector it is meant that the connector pieces have flange-like areas which extend perpendicularly to the direction of flow.
  • the present invention comprises a flange connector (1) comprising a flange (5) having a face (10) and a reverse (15), an end section (20) which is a tubular or other shaped and which can be connected to a hose or "line,” thus enabling the connector to be inserted inline.
  • the flange extends perpendicular to the anticipated flow of the line, which is parallel to the axis of the end section.
  • the end section and the flange are centered about the same axis, and they are positioned in series, with the back surface of the flange attached to the front portion of the end section.
  • the end section can be designed for inline insertion in any manner which secures the line to the end section.
  • the flange is preferably circular, disposed around the same axis as the end connector.
  • the flange front has an annular cavity disposed into its front surface (25).
  • the cavity is bounded by two annular sealing walls of equal height (30) and disposed concentrically with respect to each other and the flange.
  • the cavity has a third bounding surface which is essentially the cavity bottom (35).
  • the cavity bottom may be an annular surface which is disposed parallel to both annular sealing walls, or it may have features such that its depth varies with radius.
  • the cavity have a cross section profile which does not have an angular variance.
  • the flange connector is one piece molded.
  • the flange connector is polycarbonate.
  • the flange face can have connecting means at its edges (40) to maintain the flange face to flange face connection which occurs upon forming a connection.
  • the flanges can be locked together with one or more clamps.
  • the flange faces are held together by one or more grooved arcs which accept the edge of the face-to-face flange assembly. If desired the arcs can be held in place with a band which is wrapped circumferentially around the grooved arcs.
  • the grooved arcs are of polycarbonate).
  • the present invention comprises a rigid gasket (101).
  • the gasket comprises inner (105) and outer (110) radii, upper (1 15 )and lower (120) surfaces, and tab projections (125) which originate at and extend from the lower surface.
  • the rigid gasket is preferably formed from a material having a rigidity equal to, or, in an embodiment, greater than the rigidity of the flange connector. Exemplary materials include, but are not limited to steel, thermoplastics such as Teflon, polycarbonates, ABS, styrenes or thermoset materials.
  • the rigid gasket is of the same material as the flange connector, and in yet other embodiments, the rigid gasket is one-piece molded polycarbonate.
  • the rigid gasket is dimensioned to reside in the connector cavity.
  • side it is meant that the gasket inner and outer diameters are such that the gasket can be seated in the cavity.
  • the inner radius of the gasket is greater than the inner radius of the cavity, but the outer radius of the gasket is less than the outer radius of the cavity.
  • the gasket can reside in the cavity, yet still extend above the edge of the cavity in its unactivated state.
  • unactivated it is meant that the gasket is not compressed into the cavity as it would be, for example, if two gasket bearing flange connectors were pressed together face- to-face such as when subjected to the conditions of a closed connection.
  • the tab projections which extend from the lower surface can be added to the gasket after the gasket is one-piece molded.
  • the tabs can be fabricated as part of the gasket in the one piece molding process.
  • the tabs are of a different material than the flanged connectors. In another embodiment, they are of the same material as the flanged connectors. Referring to Figure 2, the tabs are depicted as extending from the inner diameter outward. However, other configurations are possible, such as from the outer diameter inward, or a staggered configuration in which alternate tabs are directed inward.
  • the geometry of the tab shapes is preferably such that upon compression of the gasket into the cavity, the tab edges do not interfere with each other as the tabs flex into a position which is at a shallower angle to the lower surface of the gasket, at least over the necessary compression distance.
  • compression distance it is meant the distance the gasket must be compressed into the cavity in order to form the connection. Note that this is generally the distance the gasket must be pressed into the cavity such that the top of the cavity walls are flush with the upper surface of the gasket.
  • tabs which are essentially rectangular
  • other tab geometries which may be suitable for certain situations are the following: It may be preferable to have the lower edge of the tab to have a curvature, such as, for example, a curvature which matches the curvature of the cavity. This type of geometry will allow the maximum compression distance for a given tab length. It may be desirable to have a gasket which gives an increased resistance beginning at a given depth. For example, the inclusion of tab extensions which flex circumferentially when they contact the outer wall of the cavity gives an increased compression resistance at the point where the tips of the extensions come into contact with the outer wall of the cavity. It may be desirable to utilize tabs which extend inward, such as from the outer diameter. Such tabs may have a more triangular shape.
  • tabs may be attached to the lower annular surface of the gasket at places other than its edges.
  • the tabs may extend in directions other than inward and outward.
  • the present invention includes within its scope tabs which are attached in a radial manner and flex circumferentially.
  • the gasket/tab/cavity geometries be such that the gasket can be compressed into the cavity such that its surface is flush with the face of the flange or tops of the cavity walls. It is even more preferred that the gasket/tab/cavity geometries be such that the gasket can be compressed even further.
  • the gasket in general, in situations where neither the inner wall of the cavity nor the inner wall of the gasket are tapered, the gasket preferably has inner and outer diameters such that it can reside in the cavity, and more preferably has an inner diameter which is larger than the inner diameter of the cavity by less than about 50 thousandths of an inch, more preferably, less than about 20 thousandths of an inch, and even more preferably, in the range of from about 1 to about 5 thousandths of an inch.
  • the inner diameter of the rigid gasket (and/or an opposing taper on the inner diameter of the cavity) such that as the rigid gasket is compressed down into the cavity, the average tolerance between the inner wall of the gasket and the inner wall of the cavity is reduced, and in one embodiment, becomes a line to line fit.
  • the inner gasket wall is actually re-enforced by hoop strength of the rigid gasket; hence, any movement of the inner gasket wall outward (buckling) as a result of internal pressure will be reduced or eliminated by the re-enforcing affect of the rigid gasket.
  • This re-enforcing affect by the gasket rigid is accomplished by the unique design/material choice/dimensional relationship between the gasket, the cavity and the depth of compression applied, such as by an the external clamp.
  • the combined dimensions of the thickness of the tabs and the gasket body height is less than the cavity depth.
  • thickness of the tabs is meant the short dimension of the tabs.
  • gasket body height is meant the thickness of the gasket in the direction along its highest symmetry axis, i.e., the axis extending through the hole in the middle.
  • the gasket can be compressed such that its upper surface is flush with the inner and outer walls of the flange connector.
  • the combined dimensions of the rise and the gasket body height are greater than the cavity depth.
  • rise is meant the distance the uncompressed tabs raise the gasket off the floor of the cavity.
  • cavity depth is meant the distance between the cavity floor and the top of the cavity walls.
  • An additional embodiment of the present invention is a rigid gasket which does not comprise tabs, but is placed upon a "wave washer.
  • the dimensions of the washer and the gasket are generally such that the uncompressed gasket extends above the walls of the cavity, and the gasket, when compressed, can sink to such a level that it does not protrude above the tops of the cavity walls.
  • the connector of the present invention comprises an insert sub assembly, and optionally, an retentive cap .
  • the insert sub-assembly covers the entire flange face in order to prevent contact contamination of the flange face.
  • the insert sub-assembly is anchored at edges of the flange by a mild adhesive. Note that the shape of the insert sub-assembly can be modified to accommodate any features on the flange face, such as connectors, etc.
  • the connector of the present invention comprises a retentive cap which can be applied over the insert sub-assembly, thus preventing premature removal and contamination, and also providing a means for handling the connector without touching the end connector or other preferably sterile surfaces.
  • Figure 1 is a flange connector/rigid gasket assembly.
  • Figure 2 is a rectangular-tabbed rigid gasket.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gasket Seals (AREA)

Abstract

La présente invention concerne un connecteur comportant un connecteur à bride présentant un joint statique à onglet qui crée un raccordement haute pression, efficacement étanche.
PCT/US2008/007784 2007-06-22 2008-06-23 Connecteur aseptique à joint statique rigide Ceased WO2009002468A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US94566307P 2007-06-22 2007-06-22
US60/945,663 2007-06-22
US12/214,875 2008-06-23
US12/214,875 US20090015005A1 (en) 2007-06-22 2008-06-23 Rigid gasket aseptic connector

Publications (1)

Publication Number Publication Date
WO2009002468A1 true WO2009002468A1 (fr) 2008-12-31

Family

ID=40185939

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/007784 Ceased WO2009002468A1 (fr) 2007-06-22 2008-06-23 Connecteur aseptique à joint statique rigide

Country Status (1)

Country Link
WO (1) WO2009002468A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016015952A1 (fr) 2014-07-28 2016-02-04 Ge Healthcare Bio-Sciences Ab Modules de colonne de chromatographie empilables et blocs de commande de flux
US10449350B2 (en) 2013-11-07 2019-10-22 Ge Healthcare Bio-Sciences Ab Connector for aseptic connection
WO2019229202A1 (fr) 2018-05-30 2019-12-05 Ge Healthcare Bio-Sciences Ab Raccord pour accouplement aseptique, et procédé d'accouplement et de désaccouplement desdits raccords
WO2020260089A1 (fr) 2019-06-28 2020-12-30 Cytiva Sweden Ab Améliorations apportées à la stérilisation d'éléments de guidage de fluide pour des applications de biotraitement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2009744A (en) * 1931-06-25 1935-07-30 S R Dresser Mfg Co Repair device for pipe lines
US3108818A (en) * 1959-12-14 1963-10-29 Felt Products Mfg Co Fluid transfer seal for gasket
US6679529B2 (en) * 2001-08-06 2004-01-20 Theodore D. Johnson Connection system
US20050220567A1 (en) * 2004-03-17 2005-10-06 Alexander Winker Fastening element, washer and fastening means therefrom
US20070093762A1 (en) * 2005-10-11 2007-04-26 Utterberg David S Closure for tubular access port

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2009744A (en) * 1931-06-25 1935-07-30 S R Dresser Mfg Co Repair device for pipe lines
US3108818A (en) * 1959-12-14 1963-10-29 Felt Products Mfg Co Fluid transfer seal for gasket
US6679529B2 (en) * 2001-08-06 2004-01-20 Theodore D. Johnson Connection system
US20050220567A1 (en) * 2004-03-17 2005-10-06 Alexander Winker Fastening element, washer and fastening means therefrom
US20070093762A1 (en) * 2005-10-11 2007-04-26 Utterberg David S Closure for tubular access port

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10449350B2 (en) 2013-11-07 2019-10-22 Ge Healthcare Bio-Sciences Ab Connector for aseptic connection
WO2016015952A1 (fr) 2014-07-28 2016-02-04 Ge Healthcare Bio-Sciences Ab Modules de colonne de chromatographie empilables et blocs de commande de flux
WO2019229202A1 (fr) 2018-05-30 2019-12-05 Ge Healthcare Bio-Sciences Ab Raccord pour accouplement aseptique, et procédé d'accouplement et de désaccouplement desdits raccords
WO2020260089A1 (fr) 2019-06-28 2020-12-30 Cytiva Sweden Ab Améliorations apportées à la stérilisation d'éléments de guidage de fluide pour des applications de biotraitement

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