EP3200923B1 - Handpipette mit ergonomischen bedienungskopf - Google Patents

Handpipette mit ergonomischen bedienungskopf Download PDF

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Publication number
EP3200923B1
EP3200923B1 EP15771598.8A EP15771598A EP3200923B1 EP 3200923 B1 EP3200923 B1 EP 3200923B1 EP 15771598 A EP15771598 A EP 15771598A EP 3200923 B1 EP3200923 B1 EP 3200923B1
Authority
EP
European Patent Office
Prior art keywords
button
pipette
pressure surface
control rod
control
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.)
Active
Application number
EP15771598.8A
Other languages
English (en)
French (fr)
Other versions
EP3200923A1 (de
Inventor
Sanjay Ramsamy
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
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.)
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Publication date
Application filed by Gilson SAS filed Critical Gilson SAS
Priority to PL15771598T priority Critical patent/PL3200923T3/pl
Publication of EP3200923A1 publication Critical patent/EP3200923A1/de
Application granted granted Critical
Publication of EP3200923B1 publication Critical patent/EP3200923B1/de
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Anticipated expiration legal-status Critical

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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
    • B01L3/0286—Ergonomic aspects, e.g. form or arrangement of controls
    • 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
    • B01L3/0217—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids of the plunger pump type
    • 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
    • B01L2200/08—Ergonomic or safety aspects of handling devices
    • B01L2200/087—Ergonomic aspects

Definitions

  • the present invention relates to the field of sampling pipettes, also called laboratory pipettes or liquid transfer pipettes. They are intended for the collection and dispensing of liquid in containers or the like.
  • the invention relates more specifically manual pipettes, single channel or multichannel.
  • the manual pipettes are intended to be held in the hand by an operator during the liquid collection and dispensing operations, these operations being performed by setting in motion a control knob obtained by the application of a axial pressure on the same button.
  • the axial pressure applied to the control knob is transmitted to a piston of the pipette via a control rod of the pipette.
  • the piston is displaced axially and causes a displacement of air leading to sampling and dispensing operations.
  • This principle concerns so-called air displacement pipettes, in which a sampling cone is intended to be removably mounted on the tip of the pipette.
  • the invention also applies to so-called positive displacement pipettes intended to cooperate with capillary-piston consumables, the piston of which is intended to be directly in contact with the sample to be sampled, before being ejected. or reused.
  • Positive-displacement pipettes therefore have a different design from that of more conventional air-displacement pipettes, in which the piston is an integral part of the pipette.
  • WO02 / 00346A2 discloses a conventional pipette.
  • the subject of the invention is a set for a sampling pipette comprising a control rod at the end of which is arranged a control button intended to control the displacement of the control rod along a longitudinal axis of this, the button having a pressure surface for receiving the thumb of an operator.
  • the pressure surface of the control button is movable so that, in operation, it can adopt several inclinations relative to the longitudinal axis of the control rod.
  • the invention has at least one of the following optional features, taken alone or in combination.
  • the control knob is pivotally mounted on the control rod, along a pivot axis arranged in a plane orthogonal to the longitudinal axis of the control rod.
  • the control button could be made in two parts, including a base mounted on the control rod, and a movable end piece pivotally mounted on the base, and having said pressure surface to be contacted by the thumb.
  • the control knob is pivotally mounted between two extreme positions, the passage from one to the other of the two extreme positions being effected by a pivoting of a total deflection angle of between 10 and 45 °, and more preferably included between 15 and 25 °.
  • the assembly comprises means for returning the pressure surface in a rest position, which can indifferently be one or the other of the two extreme positions mentioned above.
  • the pressure surface has a convex shape so as to define a cradle for receiving the thumb of the operator.
  • the convexity axis of the pressure surface of the control knob is substantially orthogonal to a pivot axis of the control knob.
  • the invention also relates to a sampling pipette comprising such an assembly, the pipette being of the air displacement or positive displacement type, and of the single-channel or multichannel type.
  • FIG. 1 With reference first to the figure 1 , there is shown a manually operated air displacement sampling pipette 1 according to a preferred embodiment of the present invention.
  • the terms “high” and “low” are to be considered with the pipette held vertically, in the pipetting position or close to this same position.
  • FIG. 1 there is shown the pipette 1 held by the hand 2 of an operator, who, using his thumb 4, actuates the pipette to generate the dispensing of a liquid that has previously been sucked.
  • the pipette 1 comprises a handle 6 forming the upper body of the pipette, the handle of which opens a pipetting control rod 10 carrying at its upper end, in the pipetting position, a control button 12 whose upper part is intended under pressure from the operator's thumb. More specifically, the button has a pressure surface 11 for receiving the thumb of the operator, this surface being generally oriented upwards.
  • a display screen (not shown) can be provided on the handle 6.
  • the volume control means to be taken are also accessible to the operator on the handle 6.
  • the pipette 1 comprises a removable lower part 14, which ends downwards by a cone holder 16 receiving a consumable 18, also called sampling cone.
  • a consumable 18 also called sampling cone.
  • the cone can be ejected mechanically by an ejector 20 whose actuating button 22 is for example projecting on the top of the handle, close to the control knob 12.
  • FIGS. 2 and 3 show in more detail the control knob 12, pivotally mounted at the upper end of the control rod 10.
  • a pin 24 passes through both the rod 10 and the lower part of the button 12.
  • pin 24 is oriented along a pivot axis 26, orthogonal to the axis longitudinally 28 of the control rod, and arranged in a plane orthogonal to the same axis 28. The latter also corresponds to the longitudinal axis of the pipette, and the direction of movement of the rod 10 during pipetting operations .
  • the referenced piece 10 on the figures 2 and 3 does not constitute the upper end of the control rod, but alternately constitutes a part of the button 12.
  • the control button could be made in two parts, including a base mounted on the control rod and corresponding to the referenced element 10 on the figures 2 and 3 , and a movable end piece pivotally mounted on the base, via the peg 24.
  • the button 12 thus has the pressure surface 11 of convex shape so as to define a cradle for receiving the thumb of the operator.
  • This cradle takes a cylindrical shape, having two flanges 30 raised to prevent lateral sliding of the thumb. These two flanges 30 are arranged on either side of a convexity axis 11a of the surface 11, this axis 11a being orthogonal to the pivot axis 26.
  • the radius of curvature R of the surface 11 is for example of the order of 20 mm.
  • the spacing E between the pivot axis 26, and the bottom of the cradle defined by the surface 11, is of the order of 3 to 5 cm, and preferably about 4 cm.
  • the distance D1 from a transverse plane P1 of the button 12 integrating the pivot axis 26, at a first end 36a of the same button 12, is between 10 and 14 cm, and preferably of the order 12 cm.
  • Said first end 36a corresponds to an end along the axis of convexity 11a, and more specifically to that intended to cooperate with the front part of the distal phalanx of the thumb of the operator.
  • the distance D2 from the transverse plane P1 to a second end 36b of the button 12 is between 13 and 17 cm, and preferably of the order of 15 cm. Said second end 36b is opposed to the first along the convexity axis 11a, and therefore corresponds to that intended to cooperate with the posterior portion of the distal phalanx of the thumb.
  • the assembly 3 comprising the button 12 and the rod 10, is also equipped with means 40 for returning the button to a rest position, shown on the figures 2 and 3 . It is preferably a compression spring 40 interposed between an outgrowth 42 of the knob and the upper part of the control rod 10.
  • the control button in which the control button is made in two parts with its base corresponding to the element referenced 10 on the figures 2 and 3 the spring 40 is then supported on this same base.
  • the base advantageously provides a larger surface than that of the rod for receiving the spring 40.
  • the base takes for example a tubular shape mounted around the upper end of the control rod, the pin 24 then passing through the base and the part top of the button, as shown on the figure 1 .
  • the spring 40 thus recalls the button in a rest position which corresponds to a position in which it has a maximum inclination relative to a plane orthogonal to the longitudinal axis 28. This is one of the two extreme positions of a pivoting movement of the knob 12 along the axis 26.
  • the knob 12 can thus adopt several inclinations during the pipetting operations, by adapting to the evolutive position of the distal phalanx of the thumb of the operator.
  • the button 12 has been shown in the two extreme positions of its authorized pivoting movement about the axis 26.
  • the most inclined position represented in dashed line, corresponding to that already shown on the figure 2 is such that the angle A1 between the horizontal 50 and the convexity axis 11a is of the order of 35 °.
  • line 50 materializes both the horizontal and a plane orthogonal to the axis 28.
  • An angle A1 greater than 35 ° is possible, but capable of generating radial parasitic forces on the rod 10. This position is adopted when the rod is in high abutment, that is to say at the end of the sampling operation, and before the start of the dispensing operation.
  • the angle between the distal phalanx 4a and the proximal phalanx 4b is small.
  • the distal phalanx 4a is thus strongly inclined relative to the horizontal, but the pivoting pressure surface 11 makes it possible to adapt perfectly to this particular orientation of the phalanx 4a, being itself inclined.
  • the cradle of the knob thus receives the phalanx 4a whose longitudinal axis is advantageously parallel to the convexity axis 11a.
  • the button 12 has also been shown in the other of the two extreme positions of its pivoting movement about the axis 26.
  • This second extreme position is that in which the angle A2 between the horizontal 50, and the convexity axis 11a, is of the order of 15 °.
  • a lower angle is possible, but less ergonomic because of the high inclination it requires between the distal and proximal phalanx 4a, 4b.
  • This position is adopted when the rod is at the bottom stop, that is to say at the end of the dispensing operation or at the end of the purge operation.
  • the angle between the distal phalanx 4a and the proximal phalanx 4b is quite high.
  • the distal phalanx 4a is therefore slightly inclined relative to the horizontal, but still perfectly received in the cradle of the button oriented accordingly.
  • the total angle of deflection A3 of the button 12 is therefore of the order of 20 °, and more generally between 15 and 25 °.
  • the transition from the first extreme position to the second extreme position is effected by counteracting the restoring force developed by the spring 40, which force is preferably very low so as not to affect the ergonomics of the pipette.
  • Mechanical stop systems make it possible to limit the pivoting movement of the button 12 between the two extreme positions mentioned above.
  • the pipetting operations can be performed without reaching one and / or the other of the two extreme positions, but always observing an adaptation the inclination of the button 12 according to the evolution position of the distal phalanx 4a of the thumb of the operator.

Landscapes

  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Mechanical Control Devices (AREA)

Claims (9)

  1. Anordnung (3) für Entnahmepipette (1), umfassend eine Betätigungsstange (10), an deren Ende ein Bedienknopf (12) angeordnet ist, der dazu bestimmt ist, die Verlagerung der Betätigungsstange (10) entlang von deren Längsachse (18) zu steuern, wobei der Knopf (12) eine Druckfläche (11) aufweist, die dazu bestimmt ist, den Daumen (4) eines Bedieners aufzunehmen,
    dadurch gekennzeichnet, dass die Druckfläche (11) des Bedienknopfes (12) beweglich ist, so dass er während des Betriebs mehrere Neigungen relativ zur Längsachse (28) der Betätigungsstange (10) annehmen kann.
  2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, dass der Bedienknopf (12) an der Betätigungsstange (10) schwenkbar entlang einer Schwenkachse (26) gelagert ist, die in einer Ebene (50) senkrecht zur Längsachse (28) der Betätigungsstange (10) verläuft.
  3. Anordnung nach Anspruch 2, dadurch gekennzeichnet, dass der Bedienknopf (12) zwischen zwei Endlagen schwenkbar gelagert ist, wobei der Übergang von der einen zur anderen der beiden Endlagen durch ein Schwenken um einen Gesamtwinkelweg (A3) zwischen 10 und 45°, bevorzugt zwischen 15 und 25°, erfolgt.
  4. Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie Mittel (40) zum Zurückstellen der Druckfläche (11) in eine Ruhelage umfasst.
  5. Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Druckfläche (11) eine konvexe Form aufweist, so dass sie eine Mulde zur Aufnahme des Daumens des Bedieners begrenzt.
  6. Anordnung nach Anspruch 5, dadurch gekennzeichnet, dass die Konvexitätsachse (11a) der Druckfläche (11) des Bedienknopfes (12) im Wesentlichen senkrecht zu einer Schwenkachse (26) des Bedienknopfes (12) verläuft.
  7. Entnahmepipette (1) mit einer Anordnung (3) nach einem der vorhergehenden Ansprüche.
  8. Pipette nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass sie mit Luftverdrängung oder positiver Verdrängung arbeitet.
  9. Pipette nach Anspruch 7 oder Anspruch 8, dadurch gekennzeichnet, dass sie einkanalig oder mehrkanalig ist.
EP15771598.8A 2014-10-03 2015-10-01 Handpipette mit ergonomischen bedienungskopf Active EP3200923B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15771598T PL3200923T3 (pl) 2014-10-03 2015-10-01 Pipeta do pobierania z ergonomicznym przyciskiem do sterowania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1459492A FR3026659B1 (fr) 2014-10-03 2014-10-03 Pipette de prelevement a bouton de commande ergonomique
PCT/EP2015/072654 WO2016050896A1 (fr) 2014-10-03 2015-10-01 Pipette de prelevement a bouton de commande ergonomique

Publications (2)

Publication Number Publication Date
EP3200923A1 EP3200923A1 (de) 2017-08-09
EP3200923B1 true EP3200923B1 (de) 2019-04-10

Family

ID=51897369

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15771598.8A Active EP3200923B1 (de) 2014-10-03 2015-10-01 Handpipette mit ergonomischen bedienungskopf

Country Status (11)

Country Link
US (1) US10350590B2 (de)
EP (1) EP3200923B1 (de)
JP (1) JP6609628B2 (de)
KR (1) KR20170062465A (de)
CN (1) CN106794463B (de)
BR (1) BR112017005929A2 (de)
CA (1) CA2962904C (de)
ES (1) ES2734187T3 (de)
FR (1) FR3026659B1 (de)
PL (1) PL3200923T3 (de)
WO (1) WO2016050896A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109603945A (zh) * 2019-01-08 2019-04-12 安徽理工大学 一种多规格一体化移液器
KR102427246B1 (ko) 2020-09-18 2022-07-29 바디텍메드(주) 미니 파이펫
KR102396874B1 (ko) 2021-10-15 2022-05-13 주식회사 진시스템 복수 개의 독립된 챔버가 구비되는 멀티 파이펫

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4099548A (en) * 1976-08-25 1978-07-11 Oxford Laboratories Inc. Hand-held pipette for repetitively dispensing precise volumes of liquid
US4096750A (en) * 1977-06-15 1978-06-27 Oxford Laboratories Inc. Hand-held micropipettor with fluid transfer volume adjustment mechanism
GB1597336A (en) * 1977-06-15 1981-09-03 Sherwood Medical Ind Inc Micropipettors
US4584510A (en) * 1982-09-08 1986-04-22 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Thumb-actuated two-axis controller
DE4414760C1 (de) * 1994-04-27 1995-08-24 Eppendorf Geraetebau Netheler Repetierpipette
FR2723700B1 (fr) * 1994-08-16 1996-11-15 Marteau D Autry Eric Pipette pour distribuer des volumes successifs de liquide
US5983733A (en) * 1996-11-15 1999-11-16 Hamilton Company Manual pipette
US6295880B1 (en) * 1999-12-08 2001-10-02 Warren E. Gilson Adjustable pipette
FR2807340B1 (fr) * 2000-04-07 2002-12-06 Gilson Sa Pipette de prelevement d'echantillons liquides a mecanisme d'ejecteur de cone
WO2002000346A2 (en) * 2000-06-26 2002-01-03 Vistalab Technologies, Inc. Handheld pipette
FI20031681A0 (fi) * 2003-11-19 2003-11-19 Thermo Electron Oy Sähköpipetti
CN201558707U (zh) * 2009-07-21 2010-08-25 大龙医疗仪器有限公司 可调式移液器及其调整装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN106794463A (zh) 2017-05-31
CA2962904A1 (en) 2016-04-07
CA2962904C (en) 2022-06-21
FR3026659A1 (fr) 2016-04-08
JP6609628B2 (ja) 2019-11-20
WO2016050896A1 (fr) 2016-04-07
BR112017005929A2 (pt) 2017-12-19
JP2017536225A (ja) 2017-12-07
PL3200923T3 (pl) 2019-09-30
US10350590B2 (en) 2019-07-16
EP3200923A1 (de) 2017-08-09
ES2734187T3 (es) 2019-12-04
CN106794463B (zh) 2019-05-07
US20170304817A1 (en) 2017-10-26
FR3026659B1 (fr) 2016-12-23
KR20170062465A (ko) 2017-06-07

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