EP0656229B1 - Système de pipette - Google Patents

Système de pipette Download PDF

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Publication number
EP0656229B1
EP0656229B1 EP94116687A EP94116687A EP0656229B1 EP 0656229 B1 EP0656229 B1 EP 0656229B1 EP 94116687 A EP94116687 A EP 94116687A EP 94116687 A EP94116687 A EP 94116687A EP 0656229 B1 EP0656229 B1 EP 0656229B1
Authority
EP
European Patent Office
Prior art keywords
syringe
gripping
plunger
pipette
levers
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
EP94116687A
Other languages
German (de)
English (en)
Other versions
EP0656229A1 (fr
Inventor
Herbert Belgardt
Rolf-Günter Meyer
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.)
Eppendorf SE
Original Assignee
Eppendorf Netheler Hinz GmbH
Eppendorf Geraetebau Netheler and Hinz GmbH
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
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Application filed by Eppendorf Netheler Hinz GmbH, Eppendorf Geraetebau Netheler and Hinz GmbH filed Critical Eppendorf Netheler Hinz GmbH
Publication of EP0656229A1 publication Critical patent/EP0656229A1/fr
Application granted granted Critical
Publication of EP0656229B1 publication Critical patent/EP0656229B1/fr
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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
    • B01L3/0275—Interchangeable or disposable dispensing tips
    • B01L3/0279—Interchangeable or disposable dispensing tips co-operating with positive ejection means
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7047—Radially interposed shim or bushing
    • Y10T403/7051—Wedging or camming
    • Y10T403/7052—Engaged by axial movement

Definitions

  • the invention relates to a pipette system according to the preamble of claim 1.
  • Pipette systems of the type mentioned at the outset are often designed as repeater or multipipette systems which allow the gradual dispensing of a liquid from a syringe.
  • a repeater pipette system is known from DE-C2 29 26 691, which is directed in particular to the repeater mechanism of the repeater pipette. It also describes how to fix a syringe of the system to the repeater pipette.
  • the syringe has a syringe flange, which from the side in an open on the side essential U-shaped groove can be used.
  • An axial pressure spring fixes the syringe flange in the groove.
  • an insert element is provided which receives an end section of the syringe plunger between two jaws.
  • the jaws can be pressed against the syringe plunger by means of a flap-shaped clamping member, the actuating lever of which protrudes through an opening out of the housing.
  • This syringe fixation has the disadvantage that the syringe must be handled to insert and couple the piston actuating device.
  • the syringe is subject to high cleanliness requirements. It is already manufactured under clean room conditions and usually has to be sterile. Removal also requires touching the syringe, which can be associated with a risk from adhering liquid.
  • a pipette system with a syringe which can be pushed axially into the fastening positions of receptacles with the syringe flange and syringe plunger.
  • fastening devices in the form of first grippers and second grippers with slotted end sections are provided, which are snapped onto the flange of the syringe body and an annular section of the syringe plunger.
  • the syringe body is first inserted into the first gripper and then the second gripper is pushed onto the pipette piston until it snaps on.
  • the syringe is repelled by first pushing the syringe body out of the end section of the pipette by advancing the second gripper and expanding it on a spreading sleeve by advancing the end sections of the second gripper and releasing the syringe plunger.
  • the elastic restoring forces of the slotted end sections must be overcome in order to attach or detach the syringe. These must be large enough that the syringe does not completely or partially slip out of its attachment when aspirating or dispensing liquid.
  • the syringe can only be inserted and ejected when the syringe plunger is fully pushed in, because both processes require the second gripper to be advanced toward the syringe.
  • the invention has for its object to provide a pipette system for manual actuation that facilitated and safe coupling of the syringe to the pipette and easier separation of the syringe from the pipette without the user having to touch it and has an expanded range of use.
  • the flange receptacles and piston receptacles are each provided with an axial opening.
  • the syringe with the fastening section and syringe plunger can be pushed in a pure axial movement through the axial openings directly into the fastening positions of the fastening section and syringe plunger.
  • the fastening section and syringe plunger are fixed by radially adjustable gripping devices which, for example, grip a syringe flange of the syringe and a piston collar of the syringe plunger in the fastening positions.
  • the pipette system ensures that the syringe and hand pipette can be connected to one another by a purely axial relative movement and can be separated from one another by actuating the fastening devices.
  • the syringe can be held stationary, for example in a stand, so that only manipulations of the hand pipette are required for the connection and disconnection process.
  • the gripping devices can be controlled automatically by the axial movement.
  • the syringe can also be ejected by loosening the fastening device, for example under the influence of gravity. In any case, connecting and disconnecting the syringe and pipette no longer requires manipulation of the syringe. Contamination of the syringe and user are practically impossible.
  • the pipette system is preferably designed as a repeater pipette system.
  • the axis mounting of the gripping devices ensures that they hold the syringe positively and thus securely in the fastening positions on the fastening section and syringe plunger independently of a spring force to be overcome when the syringe is inserted. If spring devices press the gripping devices into the fastening position, the spring forces can be selected in a user-friendly manner.
  • the axially mounted gripping devices can basically be actuated independently of the axial position of the displaceable receiving body in the pipette housing, so that fully or partially filled syringes can be attached to or separated from the hand pipette. According to the invention, this became a special one the pipette system that promotes manual use and enlarges the area of application.
  • the fastening section or syringe plunger preferably abut stops in their receptacles and are fixed there by the gripping devices by reaching behind.
  • the fastening section can have a syringe flange and the piston can have a piston collar.
  • the gripping devices are also gripping levers.
  • the syringe gripping lever can have a hook-shaped gripping end for reaching behind the fastening section.
  • piston gripping levers with a wedge-shaped gripping end are preferably provided.
  • the gripping levers can be designed with two arms, wherein they have a gripping arm and an actuating arm.
  • the gripping devices can be pressed into the locking position by spring devices. Then syringe gripping levers can be pressed into their locking position by leaf springs fixed to the housing. Leg springs can be provided for piston gripping levers, which are guided on a pivot axis of the levers and press with one leg against the receiving body and with the other leg against the piston gripping lever.
  • the arrangement of the syringe grip levers or piston grip levers in radial openings of pipette housing or receiving body facilitates their actuation from the outside.
  • the syringe grip levers have operating arms that can be operated manually from the outside. These actuating arms have contact points on the inside, for example unlocking cams, which can be pivoted against the actuating arms of the piston gripping levers in order to actuate them.
  • the stop for the fastening section can be supported in the pipette housing via axially acting spring devices.
  • a flange receptacle 5 for a syringe flange 6 of a syringe 7 is arranged in the lower end region of the lower housing part 2.
  • the syringe 7 with its syringe body 8 protrudes from the lower housing part 2 through an axial opening 9 at the bottom.
  • the top of the syringe flange 6 bears against a flange stop 10.
  • the flange stop 10 is formed by two partially cylindrical halves, which are provided at the top with a radially outwardly projecting collar 11.
  • An inner step 12 of the lower housing part 2 is assigned to the collar 11.
  • Both halves of the flange stop 10 are supported by compression springs 13 on ring segments 14 which rest on the inner casing of the lower housing part 2 and are firmly connected to them.
  • the compression springs 13 are designed as spiral springs and are guided on guide pins 15.
  • the Guide pins 15 are anchored in the flange area of the flange stop 10 and guided in axial bores 16 of the ring segments 14.
  • the flange stop 10 thus forms a spring-loaded abutment for the syringe flange 6.
  • the syringe 7 is inserted with an outwardly projecting end section of a syringe plunger 17 into a plunger receptacle 18 of a receiving body 19.
  • the syringe plunger 17 projects into the receiving body 19 through an axial opening 20 of the plunger receptacle 18.
  • the outer end of the syringe plunger 17 abuts against a plunger stop, which is formed by a bottom of the plunger receptacle 18.
  • the receiving body 19 is fixed to a lifting rod 21 which forms a stop with its end in the piston receptacle 18 of the receiving body.
  • the lifting rod 21 is fixedly connected to a sliding block 22 which is guided axially on the inner surface of the cylindrical section 3.
  • the sliding block 22 carries a return movement lever 23 which protrudes from an axial slot 24 of the lower housing part 2.
  • the receiving body 19 is axially displaceable in the lower housing part 2 by actuating the return movement lever 23.
  • two syringe gripping levers 26 are mounted on pivot axes 27 in diametrically opposite openings 25 of the lower housing part.
  • the syringe gripping levers 26 are provided with hook-shaped gripping ends 28 with which they can reach behind the underside of the syringe flange 6 when the latter rests on a lower annular stop section of the flange stop 10.
  • the gripping levers 26 are arranged with a gripping arm 29 below the pivot axes 27 approximately in the region of the cone section 4 of the lower housing part 2.
  • An actuating arm 30 of the gripping lever 26 above the pivot axes 27 is located in the cylindrical casing section 3 of the lower housing part 2.
  • leaf springs 31 On the inner surface of the cylindrical shell section 3 there are two leaf springs 31 which are held at their upper end by an annular body 32 in the lower housing part 2. The lower end of the leaf springs 31 is angled outwards and presses against the inside of the gripping lever 26.
  • the leaf springs 31 thus prestress the gripping levers 26 in the direction of the position engaging behind the syringe flange 6.
  • the syringe grip levers 26 each carry an unlocking cam 33 on the inner sides of their actuating arms 30, which cam is directed towards the receiving body 19.
  • the receiving body 19 is also provided with openings 34 on diametrically opposite sides.
  • piston gripping levers 36 are mounted on pivot axes 35.
  • the piston gripping levers 36 can engage behind a piston collar 37 at the outer end of the syringe piston 17.
  • they have an approximately wedge-shaped gripping end 38, which is arranged above the pivot axis 35.
  • Below the pivot axis 35 there is an actuating end 39 which tapers approximately wedge-shaped.
  • the piston gripping levers 36 thus have an approximately diamond-like contour overall.
  • the gripping levers 26, 36 each have lever arms of approximately the same length. However, the piston gripping levers 36 are shorter than the syringe gripping levers 26.
  • each piston gripping lever 36 On the pivot axis 35 of each piston gripping lever 36 is one Leg spring 40 guided.
  • the leg spring 40 is supported with the upper end on a stop pin 41, which is anchored in the receiving body 19.
  • the other leg of the leg spring 40 has an end which is angled parallel to the pivot axis 35 and which engages in an outer step 42 of the actuating arm 39.
  • the leg springs 40 bias the piston gripping levers 36 toward their position in which they engage behind the piston collar 37.
  • the outside of the actuating arm 39 of the piston gripping lever 36 is shaped so that it is in this locking position in the pivoting range of the actuating cams 33 on the inside of the syringe gripping lever 26.
  • the correct alignment of the piston gripping lever 36 with the syringe gripping lever 26 is ensured by guiding the return movement lever 23 in the axial slot 24.
  • a syringe 7 can be accommodated in the repeater pipette 1 as follows: the syringe 7 is kept ready with its syringe flange 6 facing upwards.
  • the syringe plunger 17 can be pressed as deep as possible into the syringe body 8.
  • the receiving body 19 of the repeating pipette 1 is pressed as far as possible towards the flange receptacle 5.
  • the axial movement is stopped by the return movement lever 23 against the lower end of the axial slot 24 limited. Then the repeating pipette 1 is inserted from above onto the upper end of the syringe 7 provided.
  • the syringe flange 6 presses the syringe grip levers 26 outwards at their bevelled lower edges. In addition, the top of the syringe flange pushes the flange stop 10 upward. Finally, the hook-shaped gripping ends 28 of the syringe grip levers 26 snap behind the syringe flange 6 and fix this to the flange stop 10.
  • the piston collar 37 presses the piston gripping levers 36 apart from the action of the leg spring 40 until it abuts against the bottom of the piston receptacle 18.
  • the piston gripping levers 36 snap behind the piston collar 37 and fix this to the bottom of the piston receptacle 18.
  • the syringe body 8 is locked in the repeater pipette 1 and the connection of the syringe plunger 17 to the lifting rod 21 and piston actuating devices coupled therewith is established.
  • the syringe plunger 17 can be pulled further out of the syringe body 8 when it is connected to the receiving body 19. This is the case, for example, when a filled syringe is connected. In the locked position, the receiving body 19 is then at a corresponding distance from the syringe flange 6. The syringe plunger 17 can then be locked before, during or after the syringe flange 6 is locked.
  • pipetting can be carried out by actuating the repeating mechanism. This will be discussed below.
  • the syringe 7 can be released again.
  • the syringe plunger 17 is pushed as far as possible into the syringe body 8
  • only the actuation arms 30 of the two syringe gripping levers 26 are pressed inwards, as shown in the left half of FIG.
  • the gripper arms 28 release the syringe flange 6.
  • the actuating cams 33 of the syringe grip levers 26 press against the actuating arms 39 of the Piston gripping lever 36 so that they release the piston collar 37. Then both syringe flange 6 and syringe plunger 17 are no longer held in their receptacles 5, 18.
  • the preloaded spiral springs 13 press the flange stop 10 towards the axial opening 9 of the repeater pipette 1 in order to eject the syringe 7.
  • the ejection movement of the flange stop 10 is limited by the stop of the collar 11 against the inner step 12 of the lower housing part 2.
  • the flange gripping levers 26 can be released, whereupon the leaf springs 31 and the leg springs 40 move the syringe gripping levers 26 and the piston gripping levers 36 back into their locking position.
  • the pipetting device is then ready for receiving another syringe 7.
  • the plunger gripping levers 36 must be moved into the pivoting range of the cams 33 when the syringe 7 is pulled out, so that the syringe plunger 17 can be separated from the receiving body 19.
  • FIG. 3 This shows the repeating mechanism known from DE-C2-29 26 691, which is explained here only with regard to its basic structure and its basic functions.
  • a housing upper part 43 of the repeating pipette 1 contains a toothed rack 44 which is firmly connected to the lifting rod 21 at the bottom (not shown).
  • the toothing of the toothed rack 44 is assigned a cover 45 which is adjustable by means of a rotary knob 46.
  • the rotary knob 46 has a guide curve 47 which interacts with a guide pin 48 which is fixed to the cover. By adjusting the rotary knob 46, the cover 45 with a lower end 49 can be more or less overlapped with a toothing 50 of the rack 44.
  • a drive lever 52 is mounted in the upper housing part 43 on a pivot axis 51, on which in turn a pawl 53 is pivotably mounted.
  • the drive lever 52 is pressed by a spring 54 into the position shown and the pawl 53 is biased towards the rack 44 by a tension spring 55.
  • the drive lever 52 If the drive lever 52 is pressed down, it comes the pawl 53 with the teeth 50 of the rack 44 for engagement when it exceeds the lower end 47 of the cover 45.
  • the setting of the cover 45 by means of the rotary knob 46 thus determines at which pivot angle of the drive lever 52 there is an engagement in the toothing 50 and thus a movement of the rack 44 downwards. Since the drive lever 52 is pressed down over its entire swivel path during each metering process, the position of the rotary knob 46 is decisive for the path covered thereby by the rack 44 and the fluid volume expelled thereby by the syringe 7.
  • the rack has a protruding projection 56 at the top, which can push the cover 45 away at a shoulder 57, as a result of which further engagement of the pawl 53 in the toothing 50 is avoided and a residual stroke lock becomes effective.
  • a repeating device 58 according to FIG. 3 forms, together with the return movement lever 23 of FIG. 1, piston actuating devices for displacing the receiving body 19 in the pipette housing.

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

Claims (13)

  1. Système de pipette manuel comportant une seringue (7), pourvue d'une partie de fixation (6) et d'un piston d'injection (17), et une pipette manuelle (1) qui présente, dans un cylindre (2) de pipette, un logement (5) pour la partie de fixation (6) et, dans un corps de logement (19), un logement (18) de piston pour le piston d'injection (17), des dispositifs de fixation (26, 36) pour fixer de manière réversible la partie de fixation et le piston d'injection dans leurs logements et des dispositifs de déplacement du piston (56, 23) pour déplacer le corps de logement (19) dans le cylindre (2) de pipette,
       dans lequel la partie de fixation (6) et le piston d'injection (17) peuvent être déplacés axialement par des ouvertures axiales (9, 20) de leurs logements (5, 18) jusqu'à leurs positions de fixation, les dispositifs de fixation (26, 36) possèdent, dans les positions de fixation, des dispositifs de saisie (28, 36), actionnables manuellement, qui peuvent avancer radialement pour fixer la partie de fixation (6) et le piston d'injection (17) aux positions de fixation, les dispositifs de saisie (28, 36) ont des leviers (28) de saisie de seringue placés avec possibilité de pivoter dans le cylindre de pipette (2) et des leviers (36) de saisie de piston placés avec possibilité de pivoter dans le corps de logement (19), les leviers (26) de saisie de seringue et les leviers (36) de saisie de piston sont exécutés avec deux bras, un bras de saisie (29, 38) et un bras d'actionnement pour l'actionnement manuel (30, 39),
       et dans lequel les leviers (26) de saisie de seringue présentent des positions de contact (33) sur les faces intérieures de leurs bras d'actionnement (30), qui peuvent pivoter par actionnement de leurs bras d'actionnement (30) à l'extérieur contre les bras d'actionnement (39) des leviers (36) de saisie de piston et actionnent les leviers (36) de saisie de piston.
  2. Système de pipette selon la revendication 1, dans lequel la partie de fixation (6) et/ou le piston d'injection (17) s'appuient, dans leurs positions de fixation dans les logements (5, 18) sur des butées (10, 21) et les dispositifs de saisie (28, 38) fixent la partie de fixation et/ou le piston d'injection sur les butées en les saisissant par l'arrière.
  3. Système de pipette selon la revendication 1 ou 2, dans lequel la partie de fixation est une bride (6) de seringue.
  4. Système de pipette selon l'une des revendications 1 à 3, dans lequel le piston d'injection (17) est pourvu d'un épaulement de piston (37) pour la saisie par l'arrière par les dispositifs de saisie (38).
  5. Système de pipette selon l'une des revendications 1 à 4, dans lequel les leviers (26) de saisie de la seringue ont une extrémité de saisie (28) en forme de crochet pour saisir par l'arrière la partie de fixation (6).
  6. Système de pipette selon l'une des revendications 1 à 5, dans lequel des leviers (36) de saisie de piston ont une extrémité de saisie (38) en forme de coin pour saisir par l'arrière le piston d'injection (17).
  7. Système de pipette selon l'une des revendications 1 à 6, dans lequel les dispositifs de saisie (28, 38) ont des dispositifs à ressorts appliquant une charge (31, 40) en direction de la partie de fixation (6) et/ou du piston d'injection (17).
  8. Système de pipette selon la revendications 7, dans lequel les dispositifs à ressorts dans le cylindre de pipette (2) ont des ressorts à lames (31) qui s'étendent axialement à partir d'une fixation (32) et agissent sur le bras d'actionnement (30) des leviers (26) de saisie de la seringue.
  9. Système de pipette selon l'une des revendications 7 ou 8, dans lequel les dispositifs à ressorts ont des ressorts à branches guidés sur des axes de pivotement (35) des leviers (36) de saisie de piston, lesquels ressorts s'appuient, par une branche sur une butée (41) du corps de logement (19) et, par l'autre branche, sur le bras d'actionnement (39) du levier (36) de saisie du piston.
  10. Système de pipette selon l'une des revendications 1 à 9, dans lequel les leviers (26) de saisie de seringue et/ou les leviers (36) de saisie de piston sont disposés dans des ouvertures radiales (25, 34) du cylindre de pipette (2) et/ou du corps de logement (19).
  11. Système de pipette selon l'une des revendications 1 à 10, dans lequel les leviers de saisie (26; 36) ont des bras de levier (29, 30; 38, 39) approximativement égaux.
  12. Système de pipette selon l'une des revendications 6 à 11, dans lequel les leviers (36) de saisie de piston sont plus courts que les leviers de saisie de la seringue.
  13. Système de pipette selon l'une des revendications 2 à 12, dans lequel la butée (10) pour la partie de fixation (6) est supportée par des dispositifs à ressorts (13) à action axiale dans le cylindre de pipette (2).
EP94116687A 1993-12-03 1994-10-22 Système de pipette Expired - Lifetime EP0656229B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4341229 1993-12-03
DE4341229A DE4341229C2 (de) 1993-12-03 1993-12-03 Pipettensystem

Publications (2)

Publication Number Publication Date
EP0656229A1 EP0656229A1 (fr) 1995-06-07
EP0656229B1 true EP0656229B1 (fr) 1997-07-16

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ID=6504100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94116687A Expired - Lifetime EP0656229B1 (fr) 1993-12-03 1994-10-22 Système de pipette

Country Status (8)

Country Link
US (1) US5620660A (fr)
EP (1) EP0656229B1 (fr)
JP (1) JP2673671B2 (fr)
AT (1) ATE155362T1 (fr)
CA (1) CA2136910C (fr)
DE (2) DE4341229C2 (fr)
ES (1) ES2105463T3 (fr)
FI (1) FI111228B (fr)

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DE102006024051A1 (de) * 2006-05-23 2007-12-06 Eppendorf Ag Elektronische Dosiervorrichtung zum Dosieren von Flüssigkeiten
DE102007010299A1 (de) 2007-03-02 2008-09-04 Eppendorf Ag Handpipettiervorrichtung
EP2292330A1 (fr) 2006-08-09 2011-03-09 Eppendorf Ag Dispositif de dosage électronique destiné au dosage de liquides
EP2371455A2 (fr) 2006-02-28 2011-10-05 Eppendorf AG Système et procédé destinés au titrage de liquides
DE102011114688A1 (de) 2011-10-04 2013-04-04 Eppendorf Ag Handdosiervorrichtung
EP2656915A1 (fr) 2012-04-23 2013-10-30 Eppendorf AG Pipette destinée à actionner une seringue
EP2656916A1 (fr) 2012-04-23 2013-10-30 Eppendorf AG Procédé de dosage de liquide au moyen d'une pipette et d'une seringue ainsi que la pipette destinée à actionner une seringue pour le dosage de liquides
DE102012011938A1 (de) 2012-06-18 2013-12-19 Eppendorf Ag Pipette zum Betätigen einer Spritze
EP2783753A1 (fr) 2013-03-28 2014-10-01 Eppendorf Ag Distributeur destiné à actionner une seringue
WO2016001010A1 (fr) 2014-07-04 2016-01-07 Eppendorf Ag Pipette servant à faire fonctionner une seringue
EP3260822A1 (fr) 2016-06-21 2017-12-27 Eppendorf Ag Seringue multivoie pour l'utilisation a l'aide d'un dispositif de dosage
EP3335795A1 (fr) 2016-12-16 2018-06-20 Eppendorf AG Procédé de dosage de liquide au moyen d'une pipette et d'une seringue et pipette destinée à actionner une seringue pour le dosage de liquides
EP3399215A1 (fr) 2017-05-05 2018-11-07 Eppendorf AG Entraînement de broche
EP3399214A1 (fr) 2017-05-05 2018-11-07 Eppendorf AG Entraînement de dosage électronique
US11951471B2 (en) 2020-06-22 2024-04-09 Eppendorf Ag Pipette for use with a pipette tip or syringe having a piston and a cylinder

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FR2723700B1 (fr) * 1994-08-16 1996-11-15 Marteau D Autry Eric Pipette pour distribuer des volumes successifs de liquide
DE19655129C2 (de) * 1995-12-07 2001-03-08 Walu Labortechnik Gmbh Repetierpipette
US5906795A (en) * 1996-04-08 1999-05-25 Sanyo Electric Co., Ltd. Pipetting apparatus
DE19626234A1 (de) * 1996-06-29 1998-01-02 Innova Gmbh Vorrichtung zur kontaminationsfreien Zu- und Abfuhr von Flüssigkeiten
DE19915066C2 (de) * 1999-04-01 2001-09-13 Brand Gmbh & Co Kg Verfahren zur Erkennung des Typs von austauschbaren gerätespezifischen Kolben-Zylinder-Einheiten für Pipettier- oder Dosiergeräte sowie Pipettier- und Dosiersystem
DE19917907C2 (de) * 1999-04-20 2001-08-16 Brand Gmbh & Co Kg Pipette für ein Pipettensystem
DE19963141A1 (de) 1999-12-24 2001-07-12 Brand Gmbh & Co Kg Pipette für ein Pipettiersystem
EP1291658A1 (fr) * 2001-09-07 2003-03-12 The Automation Partnership (Cambridge) Limited Tête pipettage pour robot
DE60237627D1 (de) 2001-10-16 2010-10-21 Matrix Technologies Corp Hand-pipettiervorrichtung
US20060027033A1 (en) * 2002-10-16 2006-02-09 Richard Cote Hand-held pipette employing voice recognition control
US7284454B2 (en) * 2004-05-27 2007-10-23 Matrix Technologies Corporation Hand held pipette
DE10257414B4 (de) * 2002-12-05 2005-07-21 Eppendorf Ag Handdispenser mit elektromotorischem Antrieb
US7381371B2 (en) * 2004-01-16 2008-06-03 Heathrow Scientific Llc Pipette device with pivotable nozzle assembly
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EP2783753A1 (fr) 2013-03-28 2014-10-01 Eppendorf Ag Distributeur destiné à actionner une seringue
US10507463B2 (en) 2014-07-04 2019-12-17 Eppendorf Ag Pipette for activating a syringe
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DE102014109345A1 (de) 2014-07-04 2016-01-07 Eppendorf Ag Pipette zum Betätigen einer Spritze
EP3260822A1 (fr) 2016-06-21 2017-12-27 Eppendorf Ag Seringue multivoie pour l'utilisation a l'aide d'un dispositif de dosage
WO2017220673A1 (fr) 2016-06-21 2017-12-28 Eppendorf Ag Seringue à canaux multiples à utiliser avec un dispositif de dosage
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EP3335795A1 (fr) 2016-12-16 2018-06-20 Eppendorf AG Procédé de dosage de liquide au moyen d'une pipette et d'une seringue et pipette destinée à actionner une seringue pour le dosage de liquides
EP3399215A1 (fr) 2017-05-05 2018-11-07 Eppendorf AG Entraînement de broche
EP3399214A1 (fr) 2017-05-05 2018-11-07 Eppendorf AG Entraînement de dosage électronique
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Publication number Publication date
JPH07194987A (ja) 1995-08-01
CA2136910A1 (fr) 1995-06-04
FI111228B (fi) 2003-06-30
FI945661A (fi) 1995-06-04
DE4341229C2 (de) 1995-09-07
DE4341229A1 (de) 1995-06-08
US5620660A (en) 1997-04-15
DE59403385D1 (de) 1997-08-21
ATE155362T1 (de) 1997-08-15
ES2105463T3 (es) 1997-10-16
EP0656229A1 (fr) 1995-06-07
CA2136910C (fr) 1999-11-23
FI945661A0 (fi) 1994-12-01
JP2673671B2 (ja) 1997-11-05

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