EP0487490A2 - Fermeture pour récipients à échantillons et son procédé de fabrication - Google Patents

Fermeture pour récipients à échantillons et son procédé de fabrication Download PDF

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Publication number
EP0487490A2
EP0487490A2 EP91890275A EP91890275A EP0487490A2 EP 0487490 A2 EP0487490 A2 EP 0487490A2 EP 91890275 A EP91890275 A EP 91890275A EP 91890275 A EP91890275 A EP 91890275A EP 0487490 A2 EP0487490 A2 EP 0487490A2
Authority
EP
European Patent Office
Prior art keywords
channel
closure piece
parts
vessel
piece according
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
EP91890275A
Other languages
German (de)
English (en)
Other versions
EP0487490B1 (fr
EP0487490A3 (en
Inventor
Johann Lacher
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.)
Art Bickford & Co GmbH
Art Bickford and Co
Original Assignee
Art Bickford & Co GmbH
Art Bickford and Co
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 Art Bickford & Co GmbH, Art Bickford and Co filed Critical Art Bickford & Co GmbH
Publication of EP0487490A2 publication Critical patent/EP0487490A2/fr
Publication of EP0487490A3 publication Critical patent/EP0487490A3/de
Application granted granted Critical
Publication of EP0487490B1 publication Critical patent/EP0487490B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
    • B01L3/5082—Test tubes per se
    • B01L3/50825—Closing or opening means, corks, bungs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages

Definitions

  • the invention relates to a closure piece for vessels for samples, in particular for medical or technical tests, with a pouring channel arranged centrally, in particular in the axis of the vessel, and a separate, eccentrically arranged channel for a gaseous medium, in particular air, for connection to one Diluter, which two channels pass through the closure piece, the channel for the gaseous medium preferably having a riser pipe projecting into the interior of the vessel.
  • the invention further relates to a method for producing such a closure piece.
  • the primary vessels provided with the closure piece are successively captured in large numbers by a carrier of a sample distributor and subjected to the distribution process mentioned.
  • the vessel is firmly connected to the carrier, usually with the interposition of a seal.
  • contamination is often unavoidable, because when the sample vessel is transferred from a position in which the pouring channel is directed upwards to a position in which this channel points downwards, sample material enters the channel leading to the Diluter and remains there at least temporarily, even if this channel later carries compressed air.
  • the object of the invention is to avoid this disadvantage and to improve a closure piece of the type described in the introduction in such a way that contamination of the contact surface with which the sample vessel is fastened to the holder of the sample distributor is avoided with certainty.
  • the invention is based on the knowledge that the contamination mentioned is due to the fact that the channel for the diluter air passes straight through the closure piece in the known construction. It has been found that even a slight transverse extension of this channel significantly reduces the risk of contamination. Proceeding from this, the solution according to the invention of the aforementioned object is that the inlet opening of the channel for the gaseous medium is offset relative to the outlet opening in the circumferential direction of the closure piece. This dislocation means the already mentioned transverse extension of the channel leading to the diluter.
  • This transverse extension brakes the liquid (sample) that has penetrated into the diluter channel to such an extent that this sample can no longer reach the end face of the closure piece on the device, that is to say the contact surface on the vessel carrier, in particular if the aforementioned displacement reaches a maximum, i.e. Is 180 °.
  • the inlet opening is connected to the outlet opening by a transverse channel, in particular an annular channel, running inside the closure piece in the circumferential direction thereof, which channel is preferably designed as a microchannel, in particular with a dimension of less than 0.05 mm .
  • a channel running in the circumferential direction is longer than a radial transverse channel, which favors the aforementioned braking of the liquid.
  • a channel running inside the closure piece could be created during manufacture by cores, which are later removed. In terms of production, however, it is simpler to design the closure piece in two parts within the scope of the invention, the two parts forming the transverse channel, in particular as an annular channel, between them in a connected position. It is particularly favorable if according to one Further development of the invention, the annular channel is limited in the radial direction by deformable sealing lips of at least one of the two parts. When the two parts are joined together to form the closure piece, these lips are squeezed and thus delimit the annular channel. In order to maintain this seal, it is recommended within the scope of the invention to connect the two parts to one another by a snap lock.
  • annular groove runs on the end face of the closure piece facing away from the vessel, which annular groove is connected to the channel for the gaseous medium.
  • This ring groove makes the closure piece regardless of the rotational position in which it is attached to the closure piece carrier.
  • the method according to the invention for producing the closure piece according to the invention is characterized in that the closure piece is injection molded or cast in two parts, of which one part has the pouring channel and the inlet opening of the channel for the gaseous medium, the other part the outlet opening for the gaseous medium Medium, and that a web connecting the two parts is injected or cast, which is then bent when the two parts are combined and, if necessary, is then removed.
  • this web forms a guarantee that the openings in the two parts of the channel to be connected to the diluter have the desired offset relative to one another.
  • FIG.1 shows a vertical section through the two parts of the closure piece in the separated state.
  • Fig. 2 shows the two parts combined and in the state placed on a sample vessel.
  • 3 shows an embodiment variant of FIG. 2.
  • FIG. 4 shows an embodiment similar to FIG. 2, in the state attached to a carrier for the sample vessel.
  • 5 shows in vertical section the two parts of the closure piece which are connected to one another during manufacture by a web, and
  • FIG. 6 is a view in the direction of the arrow VI in FIG. 5.
  • the closure piece 1 serves to close a vessel 2 (Fig. 2, 3), which is usually formed by a cylindrical glass tube, the bottom 3 of which is closed and which has an opening 4 at the top, which to be closed by the closure piece 1.
  • the closure piece 1 according to FIG. 1 is formed from two parts 5, 6 which can be firmly connected to one another, in particular by means of a snap closure, which will be described in more detail later.
  • the upper part 5 has a pouring pipe 7 which delimits a pouring channel 8 which passes through the part 5. This pouring channel 8 continues in part 6 and also passes through this part as a central opening.
  • the part 6 has a channel 9 which carries a gaseous medium, in particular air, which passes through the part 6 in the axial direction and for the most part runs in a riser pipe 10.
  • this channel 9 meets a microchannel designed as an annular channel 11, expediently with an axial dimension of less than 0.05 mm, in particular approximately 0.02 to 0.03 mm, which for the sake of clarity is exaggerated.
  • this ring channel 11 a part 5 penetrating, in the axial direction extends channel 12, the inlet opening 13 of this channel is offset relative to the outlet opening 14 of the channel 9 with respect to the central axis 25 by 180 °.
  • inlet or "outlet” that operating state was assumed in which air is fed into the interior of the vessel from a diluter (not shown); when air is extracted from the vessel 2 by means of the diluter, the situation is of course reversed.
  • the part 5 has a position notch 15 on an annular projection 16 projecting in the axial direction, into which position notch 15 a corresponding projection 17 of the other part 6 engages. Since the position notch 15 is offset by 180 ° relative to the channel 12, this latching means an analog offset of the two channels 9, 12.
  • the channels 9, 12 serve for supplying or removing air into or from the vessel 2 by means of a diluter.
  • the part 5 has on its end face 19 facing away from the part 6 an annular groove 20 into which the channel 12 opens with its inlet opening 13.
  • the closure piece 1 is independent of its rotational position in relation to the transport carriage with which the vessel 2 is transported during the sample distribution.
  • the closure piece 1 shows the closure piece 1 in the state attached to the vessel 2.
  • the closure piece 1 or its part 6 surrounds the upper edge of the vessel 2 with a sealing bell 21 which is provided on its inner circumference with a plurality of sealing lips 22.
  • Such training is particularly suitable for pure serum vessels or serum vessels with separating gel.
  • the vessel 2 there is a blood cake 23 with a separating gel, the fill level 24 of the blood sample leaves an air space 25 above.
  • the two parts 5, 6 of the closure piece 1 are pressed together, the projection 17 engaging in the position notch 15.
  • the annular channel 11 is delimited by the mutually facing end faces of the two parts 5, 6 and runs concentrically to the longitudinal axis 25 of the vessel 2.
  • the upper part 5 has on its end face 19 an outwardly facing flange 26 which is used to engage tendons, in particular tendons 28 of a turnbuckle 27 (Fig.4), serve.
  • These clamping claws 28 engage - distributed in the circumferential direction of the flange 26 - on the flange 26 and thereby tighten the closure piece 1 together with the vessel 2 attached to it on a support 29 of a sample distributor.
  • This carrier 29 can be pivoted about a horizontal axis on a transport carriage of the sample distributor, not shown, so that the pouring tube 7 can be brought into a downward-pointing position, a vacuum prevailing in the diluter line 18 so that the sample in the vessel 2 is retained is and can not flow through the pouring spout 7. As soon as the pouring position is reached, the vacuum is replaced by overpressure and a part of the sample in the vessel 2 is thus expelled through the pouring tube 7.
  • the clamping claws 28 are movable in the axial direction of the sample vessel 2 by a drive, not shown, and can additionally be pivoted outwards or inwards, so that the flange 26 can be gripped or released.
  • the shape of the closure piece 1 shown in FIG. 4 differs from that of FIG. 2 only slightly by a different shape of the pouring tube 7, which has an enlargement 31 of the diameter of the pouring channel 8 at its mouth 30. This results in a drop centering due to the cross-sectional enlargement of the channel 8, i.e. at the end of the sample delivery, the residual drop retracts in this extension 31, so that no drop is lost unintentionally, even if the device is subjected to vibrations, for example when it is transported to the next delivery position.
  • the lower part 6 has on the inner surface of its sealing bell Sealing lips 22 with a pointed, approximately triangular cross section, whereas the sealing lips 22 according to FIG. 1 have a rounded cross section. Which of the cross-sectional shapes is selected depends on the area of application at hand.
  • annular channel 11 is not formed by an annular groove on the bottom surface of the upper part 5 (as in the embodiment according to FIGS. 1 and 2), but instead is laterally limited by deformable sealing lips 32 (see also FIG. 5).
  • these sealing lips 32 which have a triangular profile, are permanently deformed and thereby seal the annular channel 11 from the inside and outside.
  • a circumferential bead 33 of the lower part 6 engages in a circumferential groove 34 on the inner casing of the upper part 5, so that the two parts 5, 6 are fastened to one another by a connection in the manner of a snap lock 35 (FIG. 4) are.
  • the vessel 2 is gripped by the closure piece 1 on its outer jacket.
  • the closure piece 1 can also be inserted into the opening 4 of the vessel 2 in the manner of a stopper, with a sleeve 39 lying on the inside of the vessel 2 instead of the sealing bell 21 (FIG. 2) passing over part of it
  • the circumference merges into the riser pipe 10 and is provided on the outer jacket with sealing lips 22.
  • the closure piece 1 expediently consists of synthetic plastic material, although in principle other materials, for example rubber, can also be used. Injection-moldable materials are particularly suitable for manufacturing reasons. It can then, as shown in FIG. 5, be connected to the lower part 6 by a thin, flexible web 40 during manufacture by injection molding. After removal from the mold, this web 40 forms a guide, which, even in the case of mechanical production, ensures that the two openings 13, 14 are offset from one another by 180 ° with respect to the central axis when the two parts 5, 6 from the one in FIG shown demolding position in the shown in Figure 4 Connection position are brought without the web 40 is destroyed. After securing the connection of the parts 5, 6 by the snap lock 35, the web 40 can be removed. However, if desired, it can also remain and then offers a loop adhering to the closure piece 1, which can be advantageous in special cases.
  • the two-part design of the closure piece mentioned and the production of the two parts 5, 6 in separate molded parts also offers the possibility of a simple transition to different vessel shapes during manufacture.
  • the upper part 5 can be produced unchanged for the changed vessel shape, whereas the shaped part for the lower part 6 is shaped in accordance with the respective vessel 2 present.
  • unusual tube shapes e.g. with a square cross-section, easy to grasp. Only the connection point of the two parts 5, 6 must of course correspond to one another in order to be able to connect the two parts securely to one another.

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Hematology (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Sampling And Sample Adjustment (AREA)
EP19910890275 1990-11-20 1991-11-13 Fermeture pour récipients à échantillons et son procédé de fabrication Expired - Lifetime EP0487490B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT235690A AT399139B (de) 1990-11-20 1990-11-20 Verschlussstück für gefässe für probengut und verfahren zu seiner herstellung
AT2356/90 1990-11-20

Publications (3)

Publication Number Publication Date
EP0487490A2 true EP0487490A2 (fr) 1992-05-27
EP0487490A3 EP0487490A3 (en) 1992-11-04
EP0487490B1 EP0487490B1 (fr) 1995-02-01

Family

ID=3532836

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910890275 Expired - Lifetime EP0487490B1 (fr) 1990-11-20 1991-11-13 Fermeture pour récipients à échantillons et son procédé de fabrication

Country Status (3)

Country Link
EP (1) EP0487490B1 (fr)
AT (1) AT399139B (fr)
DE (1) DE59104487D1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294455A (en) * 1994-10-27 1996-05-01 Denley Instr Ltd Multi-part closure with decanting aperture
WO1999034921A2 (fr) * 1998-01-12 1999-07-15 The Government Of The United States Of America As Represented By The Secretary, Department Of Health And Human Services Systeme d'applicateur et procede d'utilisation
US6160992A (en) * 1996-10-31 2000-12-12 Lucent Technologies Inc. Method and system for communicating with remote units in a communication system
WO2006013599A1 (fr) * 2004-08-04 2006-02-09 Universita' Degli Studi Di Roma 'la Sapienza' Dispositif jetable pour une ou plusieurs introductions, le traitement et l’échantillonnage d’une matière biologique à partir d’au moins l’une des phases de séparation presente à l’interieur du dispositif, dans des conditions steriles et de pression constante
DE202008004471U1 (de) * 2008-04-01 2008-08-21 Rest, Georg Behälter zur Sicherung, zur Aufbewahrung und zum Transport von biologischen Proben
DE102007004227A1 (de) * 2007-01-27 2008-09-18 Bruker Biospin Ag Kappe für ein NMR-Probenröhrchen mit innen liegender Dichtlippe
DE102008023341A1 (de) * 2008-02-27 2009-06-25 Elm - Plastic Gmbh Pipettenadapter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106038A (en) * 1972-09-04 1978-08-08 Canon Kabushiki Kaisha Indicator in a finder
WO2023192679A1 (fr) * 2022-04-01 2023-10-05 Gill, Llc Capuchon d'échantillon à verrouillage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2217669A1 (de) * 1972-04-12 1973-10-18 Siemens Ag Anordnung zum umfuellen einer fluessigkeit von einem ersten zu einem zweiten gefaess
EP0048452A1 (fr) * 1980-09-19 1982-03-31 Boehringer Ingelheim International GmbH Procédé pour la distribution d'échantillons à partir de récipients primaires
US4736639A (en) * 1987-01-07 1988-04-12 Dynatch Precision Sampling Corporation Automatic fluid injector
EP0306289A2 (fr) * 1987-09-03 1989-03-08 International Control Automation Finance S.A. Appareil pour rendre étanche et isoler un courant d'échantillon gazeux à analyser

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US882652A (en) * 1907-01-14 1908-03-24 Albert Schaper Valve-bung.
FR2185196A5 (fr) * 1972-05-19 1973-12-28 Larrieu Jean
US4487326A (en) * 1983-11-10 1984-12-11 Owens-Illinois, Inc. Carbonated beverage package
US4749658A (en) * 1984-10-19 1988-06-07 Abbott Laboratories Two-way valve for blood analyzing apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2217669A1 (de) * 1972-04-12 1973-10-18 Siemens Ag Anordnung zum umfuellen einer fluessigkeit von einem ersten zu einem zweiten gefaess
EP0048452A1 (fr) * 1980-09-19 1982-03-31 Boehringer Ingelheim International GmbH Procédé pour la distribution d'échantillons à partir de récipients primaires
US4736639A (en) * 1987-01-07 1988-04-12 Dynatch Precision Sampling Corporation Automatic fluid injector
EP0306289A2 (fr) * 1987-09-03 1989-03-08 International Control Automation Finance S.A. Appareil pour rendre étanche et isoler un courant d'échantillon gazeux à analyser

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294455A (en) * 1994-10-27 1996-05-01 Denley Instr Ltd Multi-part closure with decanting aperture
US6160992A (en) * 1996-10-31 2000-12-12 Lucent Technologies Inc. Method and system for communicating with remote units in a communication system
WO1999034921A2 (fr) * 1998-01-12 1999-07-15 The Government Of The United States Of America As Represented By The Secretary, Department Of Health And Human Services Systeme d'applicateur et procede d'utilisation
WO1999034921A3 (fr) * 1998-01-12 1999-09-16 Us Health Systeme d'applicateur et procede d'utilisation
US6312648B1 (en) 1998-01-12 2001-11-06 The United States Of America As Represented By The Department Of Health And Human Services Applicator system
WO2006013599A1 (fr) * 2004-08-04 2006-02-09 Universita' Degli Studi Di Roma 'la Sapienza' Dispositif jetable pour une ou plusieurs introductions, le traitement et l’échantillonnage d’une matière biologique à partir d’au moins l’une des phases de séparation presente à l’interieur du dispositif, dans des conditions steriles et de pression constante
DE102007004227A1 (de) * 2007-01-27 2008-09-18 Bruker Biospin Ag Kappe für ein NMR-Probenröhrchen mit innen liegender Dichtlippe
DE102008023341A1 (de) * 2008-02-27 2009-06-25 Elm - Plastic Gmbh Pipettenadapter
DE202008004471U1 (de) * 2008-04-01 2008-08-21 Rest, Georg Behälter zur Sicherung, zur Aufbewahrung und zum Transport von biologischen Proben

Also Published As

Publication number Publication date
AT399139B (de) 1995-03-27
EP0487490B1 (fr) 1995-02-01
EP0487490A3 (en) 1992-11-04
DE59104487D1 (de) 1995-03-16
ATA235690A (de) 1994-08-15

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