EP1268070B1 - Pipette de prelevement d'echantillons liquides a mecanisme d'ejecteur de cone - Google Patents

Pipette de prelevement d'echantillons liquides a mecanisme d'ejecteur de cone Download PDF

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Publication number
EP1268070B1
EP1268070B1 EP01923762A EP01923762A EP1268070B1 EP 1268070 B1 EP1268070 B1 EP 1268070B1 EP 01923762 A EP01923762 A EP 01923762A EP 01923762 A EP01923762 A EP 01923762A EP 1268070 B1 EP1268070 B1 EP 1268070B1
Authority
EP
European Patent Office
Prior art keywords
pipette
button
arm
respect
longitudinal direction
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
EP01923762A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1268070A1 (fr
Inventor
François VIOT
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.)
Gilson SAS
Original Assignee
Gilson SAS
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Filing date
Publication date
Application filed by Gilson SAS filed Critical Gilson SAS
Publication of EP1268070A1 publication Critical patent/EP1268070A1/fr
Application granted granted Critical
Publication of EP1268070B1 publication Critical patent/EP1268070B1/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
    • 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

Definitions

  • the invention relates to sampling pipettes of liquid samples.
  • pipette comprising a body and an ejector arm mobile to slide along the body to separate from the pipette a cone attached to friction in the lower part of it.
  • the pipette has a command button ejector for lowering the arm by a press the button.
  • the button is articulated to the arm and connected to the body of the pipette so that a push down on the button changes its inclination and by effect of lever lowers the arm by reducing the effort to provide by the user against the return spring of the ejector.
  • the parts of this mechanism ejection are relatively difficult to achieve and to assemble.
  • An object of the invention is to provide a pipette of a different type in which the mechanism ejection is easier to manufacture and assemble.
  • a sampling pipette comprising a body, an arm moving relative to the body parallel to a longitudinal direction of the pipette to eject a cone attached to the body and a button controlling the movement of the arm, the pipette being arranged so that the button carries a support sliding on the arm during the movement of the arm by relation to the body.
  • connection between the button and the arm is particularly simple. These two pieces are therefore easy to manufacture and assemble with regard to this link.
  • the pipette according to the embodiment illustrated in FIG. 1 is a channel sampling pipette unique, many aspects of which are known in themselves and will not be described here in detail.
  • the pipette comprises a rod 4 of axis 10 surmounted by a picking command button 6, controlling the sliding movement of a piston along the axis 10 in a lower cavity of the pipette for the aspiration of a liquid sample in this cavity or its expulsion out of it.
  • the lower tip of the pipette is suitable for receive frictionally attached a disposable cone through which the sampled liquid transits.
  • the pipette comprises means for adjusting the volume to be sampled, which can to be of a classic type.
  • the pipette has an ejector mechanism allowing to push the cone following the direction longitudinal down, to separate it from the pipette.
  • the bottom part of this mechanism is known in itself. We will describe only its upper part.
  • the mechanism has a top cover 12, a command button ejector 14, a pivot cover 16, a spring 18 and a actuator 20.
  • the top cover 12 has a side face cylindrical 22 and a planar upper circular face 24.
  • the upper face is surmounted at its center by a finger 26 received in an orifice of the body 2 and maintained in place with a washer. With this finger, the hood 12 is rotatable relative to the body 2 around of a vertical axis 28 parallel to the axis 10, and fixed to sliding relative to the body.
  • the button 14 has an actuating part flattened 30, one leg 32 extending laterally parallel to the actuating portion and a shaft 34 perpendicular to the leg and emerging on each side of it.
  • the shaft is rotatably received in the hood 12.
  • the button is articulated to the hood around a horizontal axis 36 perpendicular to the axes 10 and 28 and secant with the axis 28.
  • the wall 22 of the hood has a notch 37 in which extends the leg 32 of the button when it is in horizontal position. The hood is open towards the low.
  • the pivot cover 16 comprises a cylindrical wall 38 open up and a flat bottom wall circular 40 projecting from which extends towards the down a finger 42.
  • the cover 12 extends into the pivot cover 16 with their lateral faces 22 and 38 facing each other.
  • the wall 38 has a notch 39 all over its placed in coincidence with the notch 37 of the hood, and traversed by the leg 32.
  • the pivot cover 16 is movable to slide relative to the hood 12 along the axis 28.
  • the actuator 20 has in the upper part a flat wall 44 indented from its front edge to its center. This notch receives the finger 42 extending to the center of wall 44.
  • the end lower finger is enlarged to block the translation of the pivot cover 16 with respect to the actuator 20 along the axis 28.
  • the pivot cover 16 is therefore rotatable with respect to the actuator around the axis 28. It's down support on the wall 44 of the actuator.
  • the actuator 20 has a flange 46 in "U" extending at the edge of the wall 44, back, left and right of it, and in protruding upwards from the wall 44.
  • the flange has notches 48, for example at number of three as illustrated, or five, the collar down. One of the notches extends in the middle at the back. The other two extend respectively to the left and right of the wall 44.
  • the leg 32 is supported on the flange 46 and can enter one of the notches 48.
  • the spring 18 is housed in the actuator 20, as illustrated in Figures 4 to 7. He is supported by his lower end on the body 2 and by his upper end under the wall 44 to solicit the actuator up.
  • the actuator 20 is movable to sliding in the body 2 along the axis 28. It is rigidly connected to a lower rod illustrated to contact the cone to be ejected.
  • the button 14 is rotatable relative to the body 2 around axis 28, that is, in a plane perpendicular to axis 28. It can be move on either side of its median position back on 80 ° on each side.
  • the left ends and right of these deflections, illustrated in the figures 11 and 12, correspond to the receipt of branch 32 in the notches 48 laterals.
  • button 14, the top cover 12 and the pivot cover 16 move in one block in rotation about the axis 28.
  • the actuator 20 remains fixed.
  • the button can be placed in a position any of the range of deflection of 160 °, in outside the notches or in these.
  • the button can be pressed down by the user on part 30.
  • This action leads to the knob rotated around the horizontal axis 36, this which causes the vertical sliding along the axis 28 of the pivot cover 16 and the actuator 20.
  • the leg 32 presses on the same point of the flange 46 by sliding on it in a plane radial to the axis 28.
  • the top cover 12 remains motionless. The descent of the actuator allows the ejection of the cone. Therefore, the cone can be ejected whatever the position of the button around the axis 28, in particular with the button to the left, to the right or back of the pipette.
  • the two movements that come to be described can be combined at leisure during the moving the button.
  • the user can freely choose the position of the button at rest and its position during the ejection movement of a cone.
  • this mechanism provides a great freedom of movement and positioning of the button while being of a relatively simple constitution. It is easy to manufacture and assemble.
  • the sliding fulcrum button 14 on the actuator 20 extends between the part 30 actuation and the shaft 34, the button serves lever reducing the effort required to eject the cone.
  • the notches 48 constitute locating means preferred positions of the button on the collar (here back, left and right).
  • the characteristics can be implemented relating to the sliding support of the button on the actuator during the ejection, independently of those relating to the mobility of the button relative to the body in a plane perpendicular to the direction 10.

Landscapes

  • 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)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
EP01923762A 2000-04-07 2001-04-09 Pipette de prelevement d'echantillons liquides a mecanisme d'ejecteur de cone Expired - Lifetime EP1268070B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0004469A FR2807340B1 (fr) 2000-04-07 2000-04-07 Pipette de prelevement d'echantillons liquides a mecanisme d'ejecteur de cone
FR0004469 2000-04-07
PCT/FR2001/001072 WO2001076752A1 (fr) 2000-04-07 2001-04-09 Pipette de prelevement d'echantillons liquides a mecanisme d'ejecteur de cone

Publications (2)

Publication Number Publication Date
EP1268070A1 EP1268070A1 (fr) 2003-01-02
EP1268070B1 true EP1268070B1 (fr) 2003-11-26

Family

ID=8848991

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01923762A Expired - Lifetime EP1268070B1 (fr) 2000-04-07 2001-04-09 Pipette de prelevement d'echantillons liquides a mecanisme d'ejecteur de cone

Country Status (16)

Country Link
US (1) US6994828B2 (zh)
EP (1) EP1268070B1 (zh)
JP (1) JP5629419B2 (zh)
KR (1) KR100687589B1 (zh)
CN (1) CN1212894C (zh)
AT (1) ATE254964T1 (zh)
AU (2) AU5045501A (zh)
CA (1) CA2404783C (zh)
DE (1) DE60101322T2 (zh)
DK (1) DK1268070T3 (zh)
ES (1) ES2210147T3 (zh)
FR (1) FR2807340B1 (zh)
MX (1) MXPA02009876A (zh)
PT (1) PT1268070E (zh)
RU (1) RU2259881C2 (zh)
WO (1) WO2001076752A1 (zh)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2807343B1 (fr) 2000-04-07 2002-12-06 Gilson Sa Pipette de prelevement munie de moyens de reglage du volume a prelever
FR2807342B1 (fr) 2000-04-07 2002-07-12 Gilson Sa Pipette de prelevement a ejecteur de cone
FR2807340B1 (fr) 2000-04-07 2002-12-06 Gilson Sa Pipette de prelevement d'echantillons liquides a mecanisme d'ejecteur de cone
FR2807341B1 (fr) 2000-04-07 2002-07-12 Gilson Sa Pipette de prelevement d'echantillons liquides a ejecteur demontable
JP4148894B2 (ja) * 2001-10-16 2008-09-10 マトリックス・テクノロジイズ・コーポレーション 手持ち式ピペット
FI20031681A0 (fi) * 2003-11-19 2003-11-19 Thermo Electron Oy Sähköpipetti
DE102004003433B4 (de) * 2004-01-21 2006-03-23 Eppendorf Ag Pipettiervorrichtung mit einer Abwurfeinrichtung für Pipettenspitzen
US7641859B2 (en) * 2004-02-11 2010-01-05 Matrix Technologies Corporation Pipette tip mounting and ejection assembly and associated pipette tip
US20090071267A1 (en) * 2007-09-17 2009-03-19 Greg Mathus Pipette tip ejection mechanism
PL220934B1 (pl) * 2009-08-28 2016-01-29 PZ HTL Spółka Akcyjna Pipeta mechaniczna z nastawianą wartością objętości pobieranej cieczy
FR3026659B1 (fr) * 2014-10-03 2016-12-23 Gilson Sas Pipette de prelevement a bouton de commande ergonomique
EP3112026B1 (en) * 2015-06-30 2018-03-14 Sartorius Biohit Liquid Handling Oy Pipette with a tip removal mechanism, a method for removing a tip, and a method for pipetting
US10493444B2 (en) 2015-10-13 2019-12-03 Roche Molecular Systems, Inc. Pipetting device for an apparatus for processing a sample or reagent, apparatus for processing a sample or reagent and method for pipetting a sample or reagent
JP6949747B2 (ja) * 2018-02-05 2021-10-13 株式会社日立ハイテク 分注装置、チップ装着方法およびチップ除去方法
FR3080783B1 (fr) * 2018-05-07 2020-05-22 Gilson Sas Systeme d’ejection de cone a ergonomie amelioree pour pipette de prelevement
EP3693745B1 (en) 2019-02-07 2023-05-17 Sartorius Biohit Liquid Handling Oy Tip removal in automated pipette module
CN110057624B (zh) * 2019-04-28 2024-04-05 深圳市大肯科技有限公司 一种空气泵
JP7251389B2 (ja) 2019-07-30 2023-04-04 株式会社島津製作所 分注チップホルダ

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FR2807341B1 (fr) * 2000-04-07 2002-07-12 Gilson Sa Pipette de prelevement d'echantillons liquides a ejecteur demontable
FR2807340B1 (fr) 2000-04-07 2002-12-06 Gilson Sa Pipette de prelevement d'echantillons liquides a mecanisme d'ejecteur de cone
FR2807339B1 (fr) 2000-04-07 2002-12-13 Gilson Sa Pipette de prelevement d'echantillons liquides a ejecteur reglable
FR2807345B1 (fr) 2000-04-07 2002-07-12 Gilson Sa Pipette de prelevement a demontage simplifie
FR2807343B1 (fr) 2000-04-07 2002-12-06 Gilson Sa Pipette de prelevement munie de moyens de reglage du volume a prelever
FR2807342B1 (fr) 2000-04-07 2002-07-12 Gilson Sa Pipette de prelevement a ejecteur de cone
FIU20010274U0 (fi) * 2001-07-06 2001-07-06 Biohit Oyj Imulaite

Also Published As

Publication number Publication date
US20030147781A1 (en) 2003-08-07
KR100687589B1 (ko) 2007-02-28
FR2807340A1 (fr) 2001-10-12
FR2807340B1 (fr) 2002-12-06
EP1268070A1 (fr) 2003-01-02
AU2001250455B2 (en) 2005-01-27
ES2210147T3 (es) 2004-07-01
JP5629419B2 (ja) 2014-11-19
DE60101322D1 (de) 2004-01-08
CA2404783C (en) 2009-07-28
AU2001250455C1 (en) 2005-07-14
CN1422184A (zh) 2003-06-04
DK1268070T3 (da) 2004-04-05
RU2259881C2 (ru) 2005-09-10
WO2001076752A1 (fr) 2001-10-18
ATE254964T1 (de) 2003-12-15
CA2404783A1 (en) 2001-10-18
AU5045501A (en) 2001-10-23
CN1212894C (zh) 2005-08-03
PT1268070E (pt) 2004-03-31
US6994828B2 (en) 2006-02-07
KR20020087952A (ko) 2002-11-23
JP2003530211A (ja) 2003-10-14
MXPA02009876A (es) 2004-05-05
DE60101322T2 (de) 2004-08-19

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