EP0904152B1 - Auxiliaire de pipettage - Google Patents

Auxiliaire de pipettage Download PDF

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Publication number
EP0904152B1
EP0904152B1 EP97930307A EP97930307A EP0904152B1 EP 0904152 B1 EP0904152 B1 EP 0904152B1 EP 97930307 A EP97930307 A EP 97930307A EP 97930307 A EP97930307 A EP 97930307A EP 0904152 B1 EP0904152 B1 EP 0904152B1
Authority
EP
European Patent Office
Prior art keywords
pipetting aid
elements
pipetting
pipette
aid 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.)
Expired - Lifetime
Application number
EP97930307A
Other languages
German (de)
English (en)
Other versions
EP0904152A1 (fr
Inventor
Wolf Dr. Bertling
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.)
November AG Novus Medicatus Bertling Gesellschaft fuer Molekular Medizin
Original Assignee
November AG Novus Medicatus Bertling Gesellschaft fuer Molekular Medizin
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 November AG Novus Medicatus Bertling Gesellschaft fuer Molekular Medizin filed Critical November AG Novus Medicatus Bertling Gesellschaft fuer Molekular Medizin
Publication of EP0904152A1 publication Critical patent/EP0904152A1/fr
Application granted granted Critical
Publication of EP0904152B1 publication Critical patent/EP0904152B1/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
    • B01L3/02—Burettes; Pipettes
    • B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
    • B01L3/0213—Accessories for glass pipettes; Gun-type pipettes, e.g. safety devices, pumps
    • 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
    • B01L3/02—Burettes; Pipettes
    • B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/25—Chemistry: analytical and immunological testing including sample preparation
    • Y10T436/2575—Volumetric liquid transfer

Definitions

  • the invention relates to a Pipetting aid, which is a gas-tight insertion the pipette into the pipetting aid without the operator enables contact pressure to be applied.
  • a pipetting aid is known from DE 950 035 C. Clamping elements by an associated holding element in it Location can be changed relative to each other. By means of the Clamping elements are held in a pipette so that their width Opening is in contact with a funnel. The funnel in turn is connected to a suction device.
  • the object of the present invention is to overcome the disadvantages of Eliminate state of the art.
  • a pipetting with which the risk of injury when inserting the pipette in the pipetting aid is reduced.
  • a Pipetting aid in particular a peläus ball, provided the a gas-tight insertion of the pipette into the pipetting aid without enabled by the operator to apply contact pressure, with spreading elements in a made of soft rubber or plastic cast opening bead of the pipetting aid are, and wherein the expansion elements by clamping elements are so changeable in their position relative to each other that the Bead for inserting the pipette is extensible.
  • the proposed one Device allows the operator to End part of the pipette without applying any significant contact pressure to insert into the attachment part of the pipetting aid. As a result, a breakage is produced, particularly of glass Avoid pipettes when inserting them. The risk of injury is reduced.
  • Fig. 1 is a first embodiment of the device shown in perspective.
  • the clarity half is the pipetting aid, in the neck of the device is usually cast in, has been omitted.
  • the device consists of two expansion elements 2, each with clamping elements designed in the form of a curved strip 3 are connected at the first end E1.
  • the spreading elements 2 each have a semicircular design Section 2a. Section 2a is in the opening bead the pipetting aid (not shown here).
  • the Tensioning elements 3 each have a slot-like design Recess 5 on. They are arranged so that they can with their The outer diameters lie against each other. Form this way the recesses 5 provide a passage for a hollow connection 1.
  • the tensioning elements 3 serve as pressure points Thickenings 4 on.
  • the tensioning elements are designed as tension springs Spring steel are made.
  • Fig. 2 shows another in perspective Embodiment of the device.
  • the spreading elements 2 are each with the first end E1 of a clamping element 3rd connected.
  • the second ends are E2 of the two clamping elements connected with a rigid ring 6, which in the neck of the Pipetting aid is poured in.
  • the spreading elements 2 have on their outsides thickenings 4, which act as pressure points serve to compress the expansion elements.
  • Between Spreading elements 2 and one formed by the thickenings 4 There is another stiff ring 7 on the level is also poured into the neck of the pipetting aid.
  • the further rigid ring 7 can be connected to the clamping elements 3 his.
  • the clamping elements 3 are made of a spring or Made of tension wire.
  • the function of the device is as follows:

Landscapes

  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Supports For Pipes And Cables (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Sampling And Sample Adjustment (AREA)

Claims (9)

  1. Auxiliaire de pipetage, notamment une poire aspiratrice, qui permet une insertion étanche aux gaz d'une pipette dans l'auxiliaire de pipetage sans exercer de pression de serrage, des éléments d'expansion (2) étant moulés dans un boudin d'ouverture en caoutchouc ou en plastique de l'auxiliaire de pipetage, et la position des éléments d'expansion (2) l'un par rapport à l'autre pouvant être modifiée au moyen d'éléments de serrage (3) de telle sorte que le boudin d'ouverture puisse être écarté pour insérer la pipette.
  2. Auxiliaire de pipetage selon la revendication 1, dans lequel deux éléments d'expansion (2) sont prévus.
  3. Auxiliaire de pipetage selon l'une des revendications précédentes, dans lequel les éléments d'expansion (2) présentent une section (2a) de forme essentiellement semi-circulaire.
  4. Auxiliaire de pipetage selon l'une des revendications précédentes, dans lequel chacun des éléments d'expansion (2) est raccordé respectivement à une première extrémité (E1) d'un élément de serrage (3).
  5. Auxiliaire de pipetage selon l'une des revendications précédentes, dans lequel les éléments de serrage (3) sont fabriqués en acier à ressorts.
  6. Auxiliaire de pipetage selon la revendication 5, dans lequel les éléments de serrage (3) sont formés comme une bande incurvée et sont disposés de telle sorte qu'ils sont en appui l'un contre l'autre par leur rayon extérieur.
  7. Auxiliaire de pipetage selon la revendication 6, dans lequel les éléments de serrage (3) présentent un évidement (5).
  8. Auxiliaire de pipetage selon l'une des revendications 1 à 5, dans lequel les éléments de serrage (3) sont raccordés respectivement sur leur deuxième extrémité (E2) à un anneau (6) rigide moulé dans le col de l'auxiliaire de pipetage.
  9. Auxiliaire de pipetage selon la revendication 8, dans lequel un autre anneau rigide (7) est moulé dans le col de l'auxiliaire de pipetage à proximité du boudin d'ouverture.
EP97930307A 1996-06-13 1997-06-12 Auxiliaire de pipettage Expired - Lifetime EP0904152B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19623538A DE19623538C2 (de) 1996-06-13 1996-06-13 Aufnahmevorrichtung für eine Pipette in einer Pipettierhilfe
DE19623538 1996-06-13
PCT/DE1997/001183 WO1997047389A1 (fr) 1996-06-13 1997-06-12 Dispositif de securite pour auxiliaires de pipettage

Publications (2)

Publication Number Publication Date
EP0904152A1 EP0904152A1 (fr) 1999-03-31
EP0904152B1 true EP0904152B1 (fr) 2002-05-08

Family

ID=7796809

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97930307A Expired - Lifetime EP0904152B1 (fr) 1996-06-13 1997-06-12 Auxiliaire de pipettage

Country Status (5)

Country Link
US (1) US6264894B1 (fr)
EP (1) EP0904152B1 (fr)
AT (1) ATE217210T1 (fr)
DE (2) DE19623538C2 (fr)
WO (1) WO1997047389A1 (fr)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US989503A (en) * 1910-08-22 1911-04-11 Edward E Behlke Combined burette-holder and pinch-cook.
US2540360A (en) * 1946-11-12 1951-02-06 George B Ulvild Pipette loader
US2516965A (en) * 1947-06-27 1950-08-01 Frank G Dresser Support for burettes and the like
GB720204A (en) * 1951-03-22 1954-12-15 Gustav Folke Persson A laboratory apparatus for charging and discharging pipettes and the like
US2724275A (en) * 1952-03-21 1955-11-22 Persson Gustav Folke Laboratory pump for drawing up fluids in a pipette
US2728232A (en) * 1953-07-13 1955-12-27 Richard L Costello Pipette filling bulb
CH381891A (de) * 1960-11-09 1964-09-15 Straub Immanuel Saugvorrichtung
US3893813A (en) * 1973-10-26 1975-07-08 Humboldt Manufacturing Company Laboratory clamp
US4114659A (en) * 1975-06-18 1978-09-19 Eitan Goldberg Pipette filling and liquid dispensing device
DE9205961U1 (de) * 1992-04-24 1992-07-23 Deutsch & Neumann GmbH, 1000 Berlin Pipettierhilfe
DE4221263C2 (de) * 1992-04-24 1994-08-18 Deutsch & Neumann Gmbh Pipettierhilfe
SE9500777D0 (sv) * 1995-03-03 1995-03-03 Pharmacia Ab Provrörshållarinsats

Also Published As

Publication number Publication date
ATE217210T1 (de) 2002-05-15
DE59707225D1 (de) 2002-06-13
DE19623538C2 (de) 1997-07-10
DE19623538A1 (de) 1997-01-09
US6264894B1 (en) 2001-07-24
WO1997047389A1 (fr) 1997-12-18
EP0904152A1 (fr) 1999-03-31

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