EP3661650A1 - Agencement de tuyaux - Google Patents

Agencement de tuyaux

Info

Publication number
EP3661650A1
EP3661650A1 EP18773080.9A EP18773080A EP3661650A1 EP 3661650 A1 EP3661650 A1 EP 3661650A1 EP 18773080 A EP18773080 A EP 18773080A EP 3661650 A1 EP3661650 A1 EP 3661650A1
Authority
EP
European Patent Office
Prior art keywords
hoses
hose
sheath
hose assembly
doing
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.)
Pending
Application number
EP18773080.9A
Other languages
German (de)
English (en)
Inventor
Claude Louis MARCHAND
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.)
Labomatic Instruments AG
Original Assignee
Labomatic Instruments AG
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 Labomatic Instruments AG filed Critical Labomatic Instruments AG
Publication of EP3661650A1 publication Critical patent/EP3661650A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/56—Labware specially adapted for transferring fluids
    • B01L3/561—Tubes; Conduits
    • 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
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
    • B01L2200/12—Specific details about manufacturing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/08—Geometry, shape and general structure
    • B01L2300/0832—Geometry, shape and general structure cylindrical, tube shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L2300/00—Additional constructional details
    • B01L2300/08—Geometry, shape and general structure
    • B01L2300/0861—Configuration of multiple channels and/or chambers in a single devices

Definitions

  • the present invention relates to a hose assembly for liquid handling devices for use in analysis or medical diagnosis, e.g. in liquid chromatography.
  • Hoses used in the above fluid handling devices must have tight tolerances of a few hundredths of a millimeter in diameter to ensure accurate throughput of fluids, and must be chemically resistant to a variety of fluids to withstand buildup of debris and germs wherever possible, to meet hygiene and analytical accuracy requirements, to be robust in order to have a long service life in an automated environment, and to be readily accessible to the installer be processed and installed, and all at a great price. Plastics have proven to be suitable for this purpose.
  • Exemplary materials for such hoses are polyetheretherketone (PEEK) or silicone or fluoropolymers, such as tetrafluoroethylene-perfluoropropylene copolymer or tetrafluoroethylene-hexafluoropropylene copolymer (FEP).
  • PEEK polyetheretherketone
  • FEP tetrafluoroethylene-hexafluoropropylene copolymer
  • Automated liquid handling devices so-called liquid handling systems, as manufactured and sold by the Applicant, are used purely by way of example on liquid chromatographs for simultaneously introducing different fractions from the chromatograph into different test tubes or microtiter plates arranged in an array and again automatically taken from these.
  • the liquid handling For this purpose, the treatment device successively moves a dispensing head with a plurality of outlets for the different fractions over the array of test tubes or microtiter plates, and introduces or withdraws the corresponding fractions into the test tubes.
  • individual hoses for the respective fraction have hitherto been guided from the removal point on the liquid chromatograph to the corresponding point on the head of the liquid handling device. These are usually 4 to 8 hoses that must be laid more or less loosely to follow the movement of the dispenser head over the array.
  • the invention is therefore based on the object, a hose assembly, which provides an improved arrangement of hoses in a cost effective manner while maintaining the required high cross-sectional accuracy, but with improved handling, and to provide a method for their preparation.
  • the method according to the invention should be applicable with any number of hoses, ie from two to three, four to eight or even more hoses.
  • FIG. 1 shows a three-dimensional view of a front end section of a first embodiment of a hose arrangement according to the invention
  • FIG. 3 shows a cross section through a second embodiment of a hose assembly according to the invention
  • FIG. 4 shows a cross section through a third embodiment of a hose arrangement according to the invention
  • FIG. 5 shows a cross section through a fourth embodiment of a hose assembly according to the invention
  • FIG. 6 shows a cross section through a fifth embodiment of a hose arrangement according to the invention.
  • Fig. 1 shows a three-dimensional view of a front end portion of a first embodiment of a hose assembly 100 according to the invention.
  • the rear part, in which the hose assembly 100 is wound onto a roll, is not shown in the drawing.
  • Such a roll can accommodate 50 m hose and have a winding width of 200 mm and a winding diameter of 250 mm.
  • the hose assembly 100 consists of four tubes A arranged in a plane A, which are made of plastic, such as polyetheretherketone (PEEK) or silicone or fluoropolymers, for example in the present case tetrafluoroethylene-perfluoropropylene copolymer (FEP).
  • PEEK polyetheretherketone
  • FEP tetrafluoroethylene-perfluoropropylene copolymer
  • the hoses 120 are provided with a jacket 140.
  • the material of the sheath 140; 240; 340; 440; 540 is preferably plastic, such as polyurethane (PU) or polyvinyl chloride (PVC) or silicone, in the present case PVC with a hardness of 75 SH. A, so that the hose assembly 100 remains a total of about as flexible as the individual hoses.
  • the front part of the sheath 140 is removed, so that the hoses 120 are exposed at their front end portion 122. At these exposed end portions 120 fittings, not shown, for example, be attached by crimping. These fittings then allow the tubing to be connected, for example, to the pipettes to allow fluid to be drawn in and out through the tubing.
  • FIGS. 1 and 2 shows a cross section through the first embodiment of the hose arrangement 100 according to the invention.
  • the hoses 120 are arranged at a defined distance P from one another.
  • the hoses 120 have an inside diameter Di which in a practical application is eg 2 mm with a tolerance of +/- 5/100 mm.
  • the outer diameter Since the tube 120 is for example 3 mm.
  • the radius Ru of the cladding 14 is about 2 mm, so that the resulting cladding thickness is about 0.5 mm.
  • the hose assembly 100 of FIGS. 1 and 2 is produced by unwinding four hoses 120 of hose reels arranged side by side and placing them next to one another in an extrusion tool at a defined distance P from each other.
  • the hose reels can each carry a coiled hose length of 250m, 500m, 1000m or more.
  • the sheath forming plastic mass is injected into a cavity formed between the hoses 120 and the extrusion die, while at the same time the hoses 120 are pulled through the tool and thus serve as mandrels.
  • the tubes 120 leaving the tool, with the cover layer 140 thereon, are in turn wound up on a roll after cooling as the desired tube assembly 100.
  • the outer contour of the hose assembly 100 is selected so that indentations of the shafts optionally fit into tow chain elevations with which liquid handling devices are often equipped to flexibly and flexibly connect hoses and data and power cables protected to lead to a moving dispensing head.
  • the hose assembly 100 is thus safe on the
  • the drag chain may even be replaced by the hose assembly 100 because the shroud 140 performs the function of guiding and protecting the hoses 120.
  • a desired length of the hose assembly 100 is withdrawn from the roll and cut.
  • the ends of the hose assembly 100 are prepared for fitting fittings by cutting the shroud 140 a few centimeters from the respective ends of the cut-off hose assembly 100 to the outer diameter Da of the hoses 120 therein then the skin jacket 140 is peeled off from the end of the hose assembly 100 to the recess in the jacket 140 over the hoses 120.
  • end portions 122 of the tubes 120 are exposed, which can be provided in the desired manner with fittings.
  • the hose end sections 122 can be guided and crimped by threaded sleeves.
  • FIG 3 shows a cross section through a second embodiment of a hose arrangement 200 according to the invention of four hoses 220 and a sheathing 240 arranged next to one another in a plane A.
  • the sheathing 240 is not the same everywhere, but a smooth outer contour without recesses is provided which may be advantageous depending on the desired application.
  • FIG. 4 shows a cross-section through a third embodiment of a hose arrangement 300 according to the invention, consisting of three hoses 320 and a sheath 340 arranged next to each other in a plane A.
  • the sheath 340 forms webs 346 between the individual hoses 320 and on the side of the outermost hoses. 348. Via the webs 346 between the hoses 320, a desired distance P2 between the hoses 320 can be established. Thus, the distance between the hoses 320 can be increased via the webs 346, so that more space for fittings to be attached to the hoses is provided and a defined distance between the fittings is ensured without the hoses 320 having to be bent away from one another.
  • FIG. 5 shows a cross section through a fourth embodiment of a hose assembly 400 according to the invention, which is constructed similarly to the hose assembly 300 of FIG. 4.
  • three tubes 420 are arranged in a plane and covered with a sheath 440.
  • the sheath 440 forms edge-side webs 448 and central webs 446 between the individual tubes 420 and consists of two sheath halves 442, 444, which on a Abutment line T abut each other, which forms the plane in which the three tubes 420 are arranged.
  • the hoses 420 are inserted next to one another in the lower sheathing half 442 and the upper sheathing halves 444 are put on.
  • the sheath halves 442 it is possible to bond the sheath halves 442 to the parting line T, so that one or both surfaces of the sheath halves 442, 444 must be applied before the two halves are brought together, or the possibility of Welding eg via ultrasound, if the material of the sheath is weldable.
  • the sonotrodes of the ultrasonic welding device are placed in this case on the webs 446, 448 or rolled as Rollsonotroden on the webs 446, 448.
  • FIG. 6 shows a cross-section through a fifth embodiment of a hose assembly 500 according to the invention, which consists of seven hoses 520 and a jacket 540.
  • the tubes 520 are in this case arranged not only in a plane A next to each other, but in addition to two other levels B and C.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

Agencement de tuyaux comprenant au moins deux tuyaux, disposés à distances prédéfinies dans au moins un plan, et une gaine entourant lesdits tuyaux dans le sens de la longueur.
EP18773080.9A 2017-08-29 2018-08-28 Agencement de tuyaux Pending EP3661650A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017119841.5A DE102017119841A1 (de) 2017-08-29 2017-08-29 Schlauchanordnung
PCT/EP2018/073113 WO2019042989A1 (fr) 2017-08-29 2018-08-28 Agencement de tuyaux

Publications (1)

Publication Number Publication Date
EP3661650A1 true EP3661650A1 (fr) 2020-06-10

Family

ID=63642937

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18773080.9A Pending EP3661650A1 (fr) 2017-08-29 2018-08-28 Agencement de tuyaux

Country Status (5)

Country Link
US (1) US20200346216A1 (fr)
EP (1) EP3661650A1 (fr)
JP (1) JP2020531869A (fr)
DE (1) DE102017119841A1 (fr)
WO (1) WO2019042989A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH717820A1 (de) * 2020-09-08 2022-03-15 Integra Biosciences Ag Schlauch zum Anbringen an einer Dispensierkassette zur Aufnahme in einer Peristaltikpumpe.

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8320837U1 (de) * 1983-07-20 1983-12-15 Plascoat U.K. Ltd., Woking, Surrey Mehrkernschlauch
US4653541A (en) * 1985-06-26 1987-03-31 Parker Hannifin Corporation Dual wall safety tube
JPS6298263A (ja) * 1985-10-25 1987-05-07 Toshiba Corp 自動化学分析装置用のチユ−ブ
JPS62100386U (fr) * 1985-12-17 1987-06-26
JPH055311Y2 (fr) * 1986-04-23 1993-02-12
GB9211413D0 (en) * 1992-05-29 1992-07-15 Cesaroni Anthony Joseph Panel heat exchanger formed from tubes and sheets
US6098666A (en) * 1999-01-13 2000-08-08 Parker-Hannifin Corporation Dual coil tubing assembly
JP4383626B2 (ja) * 2000-04-13 2009-12-16 キヤノン株式会社 位置決め装置および露光装置
JP3826118B2 (ja) * 2003-07-08 2006-09-27 キヤノン株式会社 露光装置
US7166212B2 (en) * 2003-09-30 2007-01-23 Chromba, Inc. Multicapillary column for chromatography and sample preparation
US8164031B2 (en) * 2006-11-01 2012-04-24 Parker-Hannifin Corporation Electric trace tube bundle with internal branch circuit
KR101122372B1 (ko) * 2009-04-17 2012-03-23 주식회사 효성 2중 구조의 호스 및 그의 단말장치
US20120216903A1 (en) * 2011-02-28 2012-08-30 Flo-Link, LLC Multi-layer tubing and method for joining
DE102012217848A1 (de) * 2012-09-28 2014-04-03 Agilent Technologies, Inc. - A Delaware Corporation - Injektionsventil zur Steuerung der Probenzufuhr an zwei Probenmesseinrichtungen

Also Published As

Publication number Publication date
WO2019042989A1 (fr) 2019-03-07
DE102017119841A1 (de) 2019-02-28
US20200346216A1 (en) 2020-11-05
JP2020531869A (ja) 2020-11-05

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