EP3200923B1 - Hand-held pipette with ergonomic actuator - Google Patents
Hand-held pipette with ergonomic actuator Download PDFInfo
- 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
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- 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.)
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- 210000003813 thumb Anatomy 0.000 claims description 20
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 238000005070 sampling Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 description 7
- 238000010926 purge Methods 0.000 description 4
- 208000023178 Musculoskeletal disease Diseases 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003387 muscular Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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- 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
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- 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.
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- 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)
- Mechanical Control Devices (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Description
La présente invention se rapporte au domaine des pipettes de prélèvement, également dénommées pipettes de laboratoire ou encore pipettes de transfert de liquide. Elles sont destinées au prélèvement et à la dispense de liquide dans des récipients ou similaires.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.
L'invention concerne plus précisément les pipettes manuelles, monocanal ou multicanaux. De manière connue, les pipettes manuelles sont destinées à être tenues en main par un opérateur durant les opérations de prélèvement et de dispense de liquide, ces opérations étant réalisées par mise en mouvement d'un bouton de commande obtenue par l'application d'une pression axiale sur ce même bouton. La pression axiale appliquée au bouton de commande est transmise à un piston de la pipette, via une tige de commande de la pipette. Le piston subit un déplacement axial et provoque un déplacement d'air conduisant aux opérations de prélèvement et de dispense. Ce principe concerne les pipettes dites à déplacement d'air, dans lesquelles un cône de prélèvement est destiné à être monté de façon amovible sur l'embout de la pipette. Néanmoins, l'invention s'applique également aux pipettes dites à déplacement positif, destinées à coopérer avec des consommables du type capillaire-piston, dont le piston est prévu pour être directement en contact avec l'échantillon à prélever, avant d'être éjecté ou réutilisé. Les pipettes à déplacement positif présentent donc une conception différente de celle des pipettes plus classiques à déplacement d'air, dans lesquelles le piston fait partie intégrante de la pipette.
Quelle que soit la conception retenue, il existe un besoin constant d'amélioration de l'ergonomie de ces pipettes, en particulier pour faciliter les mouvements du pouce de l'opérateur durant les opérations de dispense et d'aspiration du liquide, ainsi que lors de la purge. En effet, au début de la course de descente de la tige de commande, le pouce incliné de l'opérateur ne présente qu'une faible surface de contact avec le bouton, ce qui l'oblige à développer une force importante pour générer le déplacement désiré. Il peut en découler des problèmes de confort de pipetage, ainsi que l'apparition de troubles musculo-squelettiques (TMS).Whatever the design adopted, there is a constant need to improve the ergonomics of these pipettes, in particular to facilitate the movements of the thumb of the operator during dispensing and suctioning operations of the liquid, as well as during of the purge. Indeed, at the beginning of the descent stroke of the control rod, the inclined thumb of the operator has only a small contact surface with the button, which forces him to develop an important force to generate the desired displacement. This can result in problems with pipetting comfort, as well as the onset of musculoskeletal disorders (MSDs).
Pour répondre à ce besoin, l'invention a pour objet un ensemble pour pipette de prélèvement comprenant une tige de commande à l'extrémité de laquelle est agencé un bouton de commande destiné à commander le déplacement de la tige de commande selon un axe longitudinal de celle-ci, le bouton présentant une surface de pression destinée à recevoir le pouce d'un opérateur. Selon l'invention, la surface de pression du bouton de commande est mobile de manière à pouvoir, en fonctionnement, adopter plusieurs inclinaisons relativement à l'axe longitudinal de la tige de commande.To meet this need, 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. According to the invention, 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.
En d'autres termes, il est introduit un degré de liberté supplémentaire au niveau du bouton de commande, de telle manière qu'en fonctionnement, l'inclinaison de la surface de pression de ce dernier s'adapte à l'inclinaison évolutive de la phalange distale du pouce de l'opérateur tenant la pipette en main. Grâce à ce degré de liberté supplémentaire, la position de la surface de pression est ainsi capable d'évoluer pour suivre le mouvement naturel de rotation de la phalange distale du pouce, relativement à la phalange proximale, au cours de la descente et de la remontée de la tige de commande. Il en résulte un meilleur confort de pipetage, avec notamment une meilleure répartition des contraintes sur les articulations du pouce, et un effort d'intensité plus faible à développer pour provoquer la descente de la tige de commande via le bouton. Cela se traduit par une diminution de la fatigue musculaire, ainsi que par une limitation des risques d'apparition de troubles musculo-squelettiques.In other words, it introduces an additional degree of freedom at the control button, so that in operation, the inclination of the pressure surface of the latter adapts to the changing inclination of the distal phalanx of the operator's thumb holding the pipette in hand. With this additional degree of freedom, the position of the pressure surface is thus able to evolve to follow the natural movement of rotation of the distal phalanx of the thumb, relative to the proximal phalanx, during the descent and the ascent of the control rod. This results in better pipetting comfort, including a better distribution of the constraints on the thumb joints, and a lower intensity effort to develop to cause the descent of the control rod via the button. This results in a reduction of muscular fatigue, as well as a limitation of the risks of appearance of musculoskeletal disorders.
L'invention présente au moins l'une des caractéristiques optionnelles suivantes, prises isolément ou en combinaison.The invention has at least one of the following optional features, taken alone or in combination.
Le bouton de commande est monté pivotant sur la tige de commande, selon un axe de pivotement agencé dans un plan orthogonal à l'axe longitudinal de la tige de commande. Alternativement, le bouton de commande pourrait être réalisé en deux parties, dont une base montée sur la tige de commande, et une pièce d'extrémité mobile montée pivotante sur la base, et comportant ladite surface de pression destinée à être contactée par le pouce.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. Alternatively, 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.
Le bouton de commande est monté pivotant entre deux positions extrêmes, le passage de l'une à l'autre des deux positions extrêmes s'opérant par un pivotement d'un angle total de débattement compris entre 10 et 45°, et plus préférentiellement compris entre 15 et 25°.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 °.
L'ensemble comprend des moyens de rappel de la surface de pression dans une position de repos, qui peut indifféremment être l'une ou l'autre des deux positions extrêmes précitées.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.
La surface de pression présente une forme convexe de manière à délimiter un berceau de réception du pouce de l'opérateur.The pressure surface has a convex shape so as to define a cradle for receiving the thumb of the operator.
L'axe de convexité de la surface de pression du bouton de commande est sensiblement orthogonal à un axe de pivotement du bouton de commande.The convexity axis of the pressure surface of the control knob is substantially orthogonal to a pivot axis of the control knob.
L'invention a également pour objet une pipette de prélèvement comprenant un tel ensemble, la pipette étant du type à déplacement d'air ou à déplacement positif, et du type monocanal ou multicanaux.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.
D'autres avantages et caractéristiques de l'invention apparaîtront dans la description détaillée non limitative ci-dessous.Other advantages and features of the invention will become apparent in the detailed non-limiting description below.
La description sera faite au regard des dessins annexés parmi lesquels ;
- la
figure 1 représente une vue en perspective d'une pipette de prélèvement à déplacement d'air, selon un mode de réalisation préféré de la présente invention ; - la
figure 2 représente une vue de côté plus détaillée du bouton de commande de la pipette montrée sur la figure précédente ; - la
figure 3 représente une vue de derrière du bouton de commande montré sur la figure précédente ; - la
figure 4 représente une vue schématisant les deux positions extrêmes du bouton de commande ; - la
figure 5 représente la pipette tenue par l'opérateur à l'instant d'une fin de course d'aspiration du liquide, instant auquel le bouton adopte l'une des deux positions extrêmes ; et - la
figure 6 représente la pipette tenue par l'opérateur à l'instant d'une fin de course de purge du liquide, instant auquel le bouton adopte l'autre des deux positions extrêmes.
- the
figure 1 is a perspective view of an air displacement sampling pipette, according to a preferred embodiment of the present invention; - the
figure 2 is a more detailed side view of the pipette control knob shown in the previous figure; - the
figure 3 represents a rear view of the control button shown in the previous figure; - the
figure 4 represents a view schematizing the two extreme positions of the control button; - the
figure 5 represents the pipette held by the operator at the instant of a suction end of the liquid, at which point the button adopts one of the two extreme positions; and - the
figure 6 represents the pipette held by the operator at the time of a liquid purge end of stroke, at which point the button adopts the other of the two extreme positions.
En référence tout d'abord à la
Sur la
Plus précisément, la pipette 1 comprend une poignée 6 formant corps supérieur de la pipette, poignée de laquelle débouche une tige de commande de pipetage 10 portant à son extrémité haute, en position de pipetage, un bouton de commande 12 dont la partie supérieure est destinée à subir la pression du pouce de l'opérateur. Plus précisément, le bouton présente une surface de pression 11 destinée à recevoir le pouce de l'opérateur, cette surface étant globalement orientée vers le haut.More specifically, the
A titre indicatif, il est noté qu'un écran d'affichage (non représenté) peut être prévu sur la poignée 6. De même, des moyens de réglage du volume à prélever sont aussi accessibles à l'opérateur sur cette poignée 6.As a guide, it is noted that a display screen (not shown) can be provided on the
Sous la poignée 6, la pipette 1 comporte une partie basse 14 amovible, qui se termine vers la bas par un embout porte-cône 16 recevant un consommable 18, également dénommé cône de prélèvement. De manière connue, après le pipetage, le cône peut être éjecté mécaniquement par un éjecteur 20 dont le bouton d'actionnement 22 se trouve par exemple en saillie sur le dessus de la poignée, à proximité du bouton de commande 12.Under the
Les
Il est noté que dans un mode de réalisation préféré de l'invention, la pièce référencée 10 sur les
Le bouton 12 présente donc la surface de pression 11 de forme convexe de manière à délimiter un berceau de réception du pouce de l'opérateur. Ce berceau prend une forme cylindrique, en ayant deux rebords 30 relevés pour éviter les glissements latéraux du pouce. Ces deux rebords 30 sont agencés de part et d'autre d'un axe de convexité 11a de la surface 11, cet axe 11a étant orthogonal à l'axe de pivotement 26.The
Le rayon de courbure R de la surface 11 est par exemple de l'ordre de 20 mm. D'autre part, l'écartement E entre l'axe de pivotement 26, et le fond du berceau défini par la surface 11, est de l'ordre de 3 à 5 cm, et préférentiellement d'environ 4 cm. En outre, la distance D1 allant d'un plan transversal P1 du bouton 12 intégrant l'axe de pivotement 26, à une première extrémité 36a de ce même bouton 12, est compris entre 10 et 14 cm, et de préférence de l'ordre de 12 cm. Ladite première extrémité 36a correspond à une extrémité selon l'axe de convexité 11a, et plus précisément à celle destinée à coopérer avec la partie antérieure de la phalange distale du pouce de l'opérateur. Aussi, la distance D2 allant du plan transversal P1 à une seconde extrémité 36b du bouton 12 est compris entre 13 et 17 cm, et de préférence de l'ordre de 15 cm. Ladite seconde extrémité 36b est opposée à la première selon l'axe de convexité 11a, et correspond donc à celle destinée à coopérer avec la partie postérieure de la phalange distale du pouce.The radius of curvature R of the
L'ensemble 3 selon l'invention, comprenant le bouton 12 et la tige 10, est également équipé de moyens 40 de rappel du bouton dans une position de repos, montrée sur les
A cet égard, il est noté que dans le mode de réalisation évoqué ci-dessus, dans lequel le bouton de commande est réalisé en deux parties avec sa base correspondant à l'élément référencé 10 sur les
Le ressort 40 rappelle donc le bouton dans une position de repos qui correspond à une position dans laquelle il présente une inclinaison maximale relativement à un plan orthogonal à l'axe longitudinal 28. Il s'agit de l'une des deux positions extrêmes d'un mouvement de pivotement du bouton 12 selon l'axe 26.The
Grâce à ce mouvement de pivotement, le bouton 12 peut ainsi adopter plusieurs inclinaisons au cours des opérations de pipetage, en s'adaptant à la position évolutive de la phalange distale du pouce de l'opérateur.With this pivoting movement, the
Sur la
Cette complémentarité de forme est conservée durant toutes les opérations de pipetage, grâce à la nature pivotante du bouton 12 qui peut suivre le mouvement rotatif de la phalange distale 4a, relativement à la phalange proximale 4b.This complementarity of shape is preserved during all pipetting operations, thanks to the pivoting nature of the
Sur la
L'angle total de débattement A3 du bouton 12 est donc de l'ordre de 20°, et plus généralement compris entre 15 et 25°. Le passage de la première position extrême à la seconde position extrême s'effectue en contrant la force de rappel développée par le ressort 40, force qui est préférentiellement très faible de manière à ne pas affecter l'ergonomie de la pipette. Des systèmes de butées mécaniques permettent de limiter le mouvement de pivotement du bouton 12 entre les deux positions extrêmes précitées. D'ailleurs, il est noté qu'en fonction de la taille du pouce de l'opérateur, les opérations de pipetage peuvent être réalisées sans atteindre l'une et/ou l'autre des deux positions extrêmes, mais toujours en observant une adaptation de l'inclinaison du bouton 12 en fonction de la position évolution de la phalange distale 4a du pouce de l'opérateur.The total angle of deflection A3 of the
Bien entendu, diverses modifications peuvent être apportées par l'homme du métier à l'invention qui vient d'être décrite, uniquement à titre d'exemples non limitatifs.Of course, various modifications may be made by those skilled in the art to the invention which has just been described, solely by way of non-limiting examples.
Claims (9)
- Assembly (3) for a sampling pipette (1) including a control rod (10) at the end of which is arranged a control button (12) for controlling the movement of the control rod (10) along a longitudinal axis (18) thereof, the button (12) having a pressure surface (11) for receiving the thumb of an operator,
characterised in that the pressure surface (11) of the control button (12) is movable such as to be able, during operation, to assume multiple angles relative to the longitudinal axis (28) of the control rod (10). - Assembly according to claim 1, characterised in that the control button (12) is pivotally mounted on the control rod (10), along a pivoting axis (26) arranged in a plane (50) orthogonal to the longitudinal axis (28) of the control rod (10).
- Assembly according to claim 2, characterised in that the control button (12) is pivotally mounted between two end positions, switching from one to the other of the two end positions being performed by pivoting by a total range of rotation (A3) between 10 and 45°, and more preferentially between 15 and 25°.
- Assembly according to any one of the preceding claims, characterised in that it includes means (40) for returning the pressure surface (11) to a rest position.
- Assembly according to any one of the preceding claims, characterised in that the pressure surface (11) has a convex shape so as to define a cradle for receiving the operator's thumb.
- Assembly according to claim 5, characterised in that the convexity axis (11a) of the pressure surface (11) of the control button (12), is substantially orthogonal to a pivoting axis (26) of the control button (12).
- Sampling pipette (1) including an assembly (3) according to any one of the preceding claims.
- Pipette according to the preceding claim, characterised in that it is of the air displacement or positive displacement type.
- Pipette according to claim 7 or claim 8, characterised in that it is single-channel or multi-channel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL15771598T PL3200923T3 (en) | 2014-10-03 | 2015-10-01 | Hand-held pipette with ergonomic actuator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1459492A FR3026659B1 (en) | 2014-10-03 | 2014-10-03 | ERGONOMIC CONTROL PICK-UP PIPETTE |
PCT/EP2015/072654 WO2016050896A1 (en) | 2014-10-03 | 2015-10-01 | Sampling pipette having an ergonomic control button |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3200923A1 EP3200923A1 (en) | 2017-08-09 |
EP3200923B1 true EP3200923B1 (en) | 2019-04-10 |
Family
ID=51897369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15771598.8A Active EP3200923B1 (en) | 2014-10-03 | 2015-10-01 | Hand-held pipette with ergonomic actuator |
Country Status (11)
Country | Link |
---|---|
US (1) | US10350590B2 (en) |
EP (1) | EP3200923B1 (en) |
JP (1) | JP6609628B2 (en) |
KR (1) | KR20170062465A (en) |
CN (1) | CN106794463B (en) |
BR (1) | BR112017005929A2 (en) |
CA (1) | CA2962904C (en) |
ES (1) | ES2734187T3 (en) |
FR (1) | FR3026659B1 (en) |
PL (1) | PL3200923T3 (en) |
WO (1) | WO2016050896A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109603945A (en) * | 2019-01-08 | 2019-04-12 | 安徽理工大学 | A kind of more specification integration pipettors |
KR102427246B1 (en) | 2020-09-18 | 2022-07-29 | 바디텍메드(주) | A mini pipette |
KR102396874B1 (en) | 2021-10-15 | 2022-05-13 | 주식회사 진시스템 | Multipipette with multiple independent chambers |
Family Cites Families (12)
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 (en) * | 1994-04-27 | 1995-08-24 | Eppendorf Geraetebau Netheler | Automatic pipette |
FR2723700B1 (en) * | 1994-08-16 | 1996-11-15 | Marteau D Autry Eric | PIPETTE FOR DISPENSING SUCCESSIVE LIQUID VOLUMES |
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 (en) * | 2000-04-07 | 2002-12-06 | Gilson Sa | PIPETTE FOR TAKING LIQUID SAMPLES WITH CONE EJECTOR MECHANISM |
EP1296763B1 (en) * | 2000-06-26 | 2016-05-11 | Vistalab Technologies, Inc. | Handheld pipette |
FI20031681A0 (en) * | 2003-11-19 | 2003-11-19 | Thermo Electron Oy | Electronic pipette |
CN201558707U (en) * | 2009-07-21 | 2010-08-25 | 大龙医疗仪器有限公司 | Adjustable liquid transfer device and adjusting device thereof |
-
2014
- 2014-10-03 FR FR1459492A patent/FR3026659B1/en not_active Expired - Fee Related
-
2015
- 2015-10-01 BR BR112017005929A patent/BR112017005929A2/en not_active Application Discontinuation
- 2015-10-01 EP EP15771598.8A patent/EP3200923B1/en active Active
- 2015-10-01 ES ES15771598T patent/ES2734187T3/en active Active
- 2015-10-01 CN CN201580053377.6A patent/CN106794463B/en active Active
- 2015-10-01 KR KR1020177008823A patent/KR20170062465A/en active IP Right Grant
- 2015-10-01 US US15/516,159 patent/US10350590B2/en active Active
- 2015-10-01 CA CA2962904A patent/CA2962904C/en not_active Expired - Fee Related
- 2015-10-01 JP JP2017517736A patent/JP6609628B2/en active Active
- 2015-10-01 WO PCT/EP2015/072654 patent/WO2016050896A1/en active Application Filing
- 2015-10-01 PL PL15771598T patent/PL3200923T3/en unknown
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
CN106794463A (en) | 2017-05-31 |
FR3026659A1 (en) | 2016-04-08 |
FR3026659B1 (en) | 2016-12-23 |
US10350590B2 (en) | 2019-07-16 |
CA2962904A1 (en) | 2016-04-07 |
US20170304817A1 (en) | 2017-10-26 |
KR20170062465A (en) | 2017-06-07 |
BR112017005929A2 (en) | 2017-12-19 |
ES2734187T3 (en) | 2019-12-04 |
WO2016050896A1 (en) | 2016-04-07 |
PL3200923T3 (en) | 2019-09-30 |
CN106794463B (en) | 2019-05-07 |
EP3200923A1 (en) | 2017-08-09 |
JP2017536225A (en) | 2017-12-07 |
JP6609628B2 (en) | 2019-11-20 |
CA2962904C (en) | 2022-06-21 |
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