WO1993008870A1 - Ameliorations concernant les ensembles de raccordement - Google Patents

Ameliorations concernant les ensembles de raccordement Download PDF

Info

Publication number
WO1993008870A1
WO1993008870A1 PCT/GB1992/002029 GB9202029W WO9308870A1 WO 1993008870 A1 WO1993008870 A1 WO 1993008870A1 GB 9202029 W GB9202029 W GB 9202029W WO 9308870 A1 WO9308870 A1 WO 9308870A1
Authority
WO
WIPO (PCT)
Prior art keywords
coupling
coupling member
assembly according
members
sealing
Prior art date
Application number
PCT/GB1992/002029
Other languages
English (en)
Inventor
Brian Kevin Roderick Clarke
Original Assignee
Cryogenic Technology Limited
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 Cryogenic Technology Limited filed Critical Cryogenic Technology Limited
Priority to JP5508264A priority Critical patent/JPH07503625A/ja
Priority to EP92922285A priority patent/EP0611312A1/fr
Publication of WO1993008870A1 publication Critical patent/WO1993008870A1/fr

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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
    • F16L19/0218—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only sealing rings

Definitions

  • This invention relates to coupling assemblies.
  • the invention relates to coupling assemblies for cryogen supply lines such as are associated with cryosurgical apparatus-
  • a coupling assembly for a cryogen supply line comprising first and second coupling members each defining a passageway for the cryogen, the first coupling member being adapted to receive the second coupling member such that the respective passageways are in register, and securing means to secure the first coupling member to the second coupling member.
  • the coupling assembly comprises seal- ing means to seal the assembly and to prevent leakage therefrom.
  • the sealing means may comprise first and second sealing members which, when the first and second coupling members are secured together, define a closed chamber therebetween. Thus, if any cryogen leaks past the first sealing member, it passes into the chamber where it evaporates thereby increasing the pressure in the chamber to prevent further leakage.
  • the first and second coupling members have corresponding parallel portions and tapered portions such that the tapered portion on the first coupling member receives the tapered portion on the second coupling member.
  • the first sealing member may comprise a first rubber ring on the first coupling member and the second sealing member may comprise a second rubber ring on the second coupling member.
  • the first sealing member may be provided on the parallel portion of the first coupling member and the second sealing member may be provided on the tapered portion of the second coupling member.
  • the first coupling member comprises a female member and the second coupling member comprises a male member, the female and male members being adapted to engage each other matingly.
  • the securing means may comprise a screw threaded member on the second coupling member, which may be rotatable independently of the second coupling member.
  • the securing means may further comprise corresponding screw threads on the first coupling member adapted to engage the threads on the screw threaded member.
  • a first flange may be provided on the first coupling member, and a second flange may be provided on the screw threaded member.
  • the flanges are adapted to engage each other when the screw threaded member is fully engaged with the screw threads on the first coupling member.
  • Fig. 1 is a schematic sectional representation of a coupling assembly for a cryogen supply line
  • Fig. 2 is a drawing similar to Fig. 1 but with the first and second coupling members coupled together.
  • the drawings show a coupling assembly generally designated 10 which comprises a female member 12 and a male member 14.
  • the female member 12 is adapted to receive the male member 14.
  • a passageway 16 for the cryogen extends through the female member and a similar passageway 18 extends through the male member.
  • the inner wall of the female member 12 comprises a parallel portion 20 and a tapered portion 22.
  • a seal in the form of a first rubber ring 24 is provided on the parallel portion 20.
  • the outer wall of the male member 14 comprises a parallel portion 26 and a tapered portion 28.
  • the tapered portion 22 on the female member and the tapered portion 28 on the male member correspond with each other in shape.
  • a seal in the form of a second rubber ring 30 is provided on the tapered' portion 28 of the male member 14.
  • a chamber 32 is defined between the first and second rubber rings and between the inner wall of the female member 12 and the outer wall of the male member 14. (See Fig. 2).
  • the assembly also comprises a screw threaded member 40 which has external screw threads 41 and, at one end thereof, a flange 42.
  • the female member 12 is provided with internal screw threads 44 at an end region thereof, and a flange 46.
  • the screw threaded member 40 can be rotated independently of the male member 14. When the male member 14 has been received in the female member 12, the screw threaded member 40 can be threadably engaged with the screw threads 44 on the female member 12 (see Fig. 2). When the screw threaded member 40 is fully engaged with the screw threads 44 on the female member 12, the flanges 42, 46 engage each other.
  • a cryogen supply line 50 (to supply, for example, liquid nitrogen) is connected to the female member 12 and a further cryogen supply line 52 is connected to the male member 14. In the embodiment shown, the cryogen supply flows in the direction of the arrow indicated at A.
  • the flange on the female member could be omitted and the flange on the male member could simply engage the end of the female member.
  • the male and female members could be swapped round such that the cryogen flows in the direction opposite to that of arrow A.
  • the coupling members may have a different shape and configuration to that shown, or the sealing or securing means may be changed within the scope of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gasket Seals (AREA)
  • Joints With Pressure Members (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

Ensemble de raccordement destiné plus particulièrement à une ligne d'alimentation en cryogène pour un appareil cryochirurgical, comprenant des éléments de raccordement mâle (14) et femelle (12). Un système d'étanchéité de l'ensemble est constitué d'un premier joint torique (24) en caoutchouc situé de manière interne sur l'élément femelle et d'un deuxième joint torique (30) en caoutchouc situé à l'extérieur de l'élément mâle. Lorsqu'on introduit l'élément mâle dans l'élément femelle, les premier et deuxième éléments de raccordement définissent une chambre fermée (32). Toute fuite de cryogène se produit dans la chambre et par conséquent la pression interne de la chambre augmente et cela tend à éviter d'autres fuites. Les éléments de raccordement sont fixés ensemble au moyen de parties filetées (41, 44) correspondantes.
PCT/GB1992/002029 1991-11-05 1992-11-03 Ameliorations concernant les ensembles de raccordement WO1993008870A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP5508264A JPH07503625A (ja) 1991-11-05 1992-11-03 継手組立体における或いはそれに関する改善
EP92922285A EP0611312A1 (fr) 1991-11-05 1992-11-03 Ameliorations concernant les ensembles de raccordement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9123412.0 1991-11-05
GB919123412A GB9123412D0 (en) 1991-11-05 1991-11-05 Improvements in or relating to coupling assemblies

Publications (1)

Publication Number Publication Date
WO1993008870A1 true WO1993008870A1 (fr) 1993-05-13

Family

ID=10704051

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1992/002029 WO1993008870A1 (fr) 1991-11-05 1992-11-03 Ameliorations concernant les ensembles de raccordement

Country Status (4)

Country Link
EP (1) EP0611312A1 (fr)
JP (1) JPH07503625A (fr)
GB (1) GB9123412D0 (fr)
WO (1) WO1993008870A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0633039A1 (fr) * 1993-07-09 1995-01-11 STERIMED Medizinprodukte GmbH Connecteur à bayonnette pour tubes
DE29503750U1 (de) * 1995-03-04 1995-04-27 B. Braun Melsungen Ag, 34212 Melsungen Fixiervorrichtung
DE19637266C1 (de) * 1996-09-13 1997-12-04 Wolf Gmbh Richard Kupplung zur Verbindung eines Schlauches mit einem medizinischen Instrument, Gerät oder anderem Schlauch
CN103349813A (zh) * 2012-02-22 2013-10-16 厄比电子医学有限责任公司 具有若干可插接元件的流体连接器组件

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US626932A (en) * 1899-06-13 Pipe-joint and hose-coupling
EP0158030A1 (fr) * 1984-02-09 1985-10-16 TERUMO KABUSHIKI KAISHA trading as TERUMO CORPORATION Instrument médical
EP0193697A1 (fr) * 1985-01-08 1986-09-10 Astra Meditec AB Dispositif de raccordement avec une soupape
US4836584A (en) * 1988-07-18 1989-06-06 General Motors Corporation Serviceable threaded conduit coupling
US5118141A (en) * 1989-12-07 1992-06-02 Sanko Kogyo Kabushiki Kaisha Union joint

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US626932A (en) * 1899-06-13 Pipe-joint and hose-coupling
EP0158030A1 (fr) * 1984-02-09 1985-10-16 TERUMO KABUSHIKI KAISHA trading as TERUMO CORPORATION Instrument médical
EP0193697A1 (fr) * 1985-01-08 1986-09-10 Astra Meditec AB Dispositif de raccordement avec une soupape
US4836584A (en) * 1988-07-18 1989-06-06 General Motors Corporation Serviceable threaded conduit coupling
US5118141A (en) * 1989-12-07 1992-06-02 Sanko Kogyo Kabushiki Kaisha Union joint

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0633039A1 (fr) * 1993-07-09 1995-01-11 STERIMED Medizinprodukte GmbH Connecteur à bayonnette pour tubes
DE29503750U1 (de) * 1995-03-04 1995-04-27 B. Braun Melsungen Ag, 34212 Melsungen Fixiervorrichtung
DE19637266C1 (de) * 1996-09-13 1997-12-04 Wolf Gmbh Richard Kupplung zur Verbindung eines Schlauches mit einem medizinischen Instrument, Gerät oder anderem Schlauch
US6059325A (en) * 1996-09-13 2000-05-09 Richard Wolf Gmbh Coupling for connecting a tubing to a medical instrument, apparatus or other tubing
CN103349813A (zh) * 2012-02-22 2013-10-16 厄比电子医学有限责任公司 具有若干可插接元件的流体连接器组件

Also Published As

Publication number Publication date
EP0611312A1 (fr) 1994-08-24
GB9123412D0 (en) 1991-12-18
JPH07503625A (ja) 1995-04-20

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