EP1543879A1 - Pipette with means for information transmission - Google Patents

Abstract

A pipette control system (220) comprises a computing device (230) with a pipetting module and a first communication interface (234); and a pipette (30) with a sampling tube, a piston assembly, a piston drive mechanism, a second communication interface (190) and a microprocessor. The pipetting module has a computer code to define an operation to be performed by the pipette, and the first interface sends electronic signals to the second interface to define the operation. A pipette control system (220) comprises a computing device (230) with a pipetting module and a first communication interface (234); and a pipette (30) with a sampling tube, a piston assembly, a piston drive mechanism, a second communication interface (190) and a microprocessor. The pipetting module has a computer code to define an operation to be performed by the pipette, and the first interface sends electronic signals to the second interface to define the operation. The microprocessor is coupled to the second communication interface and controls the piston drive mechanism to perform the pipette operation defined by the electronic signals. The operation is selected from an update installed software operation, a serial number entry operation, a calibration operation, a production automation operation, a data transfer operation, an execute program operation, a new mode integration operation or a servicing operation. Independent claims are included for the following: (1) a method of using the interface in a display of the computing device; (2) and a method of responding to user inputs to a user interface presented in the display of the device.

Description

The invention relates to pipettes, particularly handheld pipettes.

Pipettes comprising one or more programs are known computer facilitating the control of the pipette by the user. Such programs allow, for example, to program a volume of liquid to be taken by pipette or a series of actions to be performed by the pipette.

An object of the invention is to facilitate the use of pipettes and to further improve their ergonomics.

For this purpose, there is provided on the invention a pipette comprising means for transmitting at least one information between the pipette and a computer.

• elle comprend au moins un connecteur de réception d'un câble de transmission d'information,
• elle comprend des moyens de transmission d'information sans fil,
• les moyens de transmission sont aptes à transmettre une information de la pipette à l'ordinateur,
• les moyens de transmission sont aptes à transmettre une information de l'ordinateur à la pipette,
• la ou les informations comprennent des données,
• les données comprennent au moins l'une des données suivantes :
  • un numéro de série de la pipette ;
  • une donnée de calibration ;
  • un nombre de prélèvements de liquide depuis un événement prédéterminé ; et
  • une date d'un événement prédéterminé.
• la ou les informations comprennent un programme ou un fragment de programme,
• le programme est une version mise à jour d'un programme déjà reçu dans la pipette,
• le programme est un programme personnalisé par un utilisateur de la pipette, et
• la pipette est une pipette à main.

The pipette according to the invention may have at least one of the following characteristics:

• it comprises at least one connector for receiving an information transmission cable,
• it includes means for transmitting wireless information,
• the transmission means are capable of transmitting information from the pipette to the computer,
• the transmission means are able to transmit information from the computer to the pipette,
• the information or information includes data,
• the data comprises at least one of the following data:
  • a serial number of the pipette;
  • a calibration data;
  • a number of liquid withdrawals since a predetermined event; and
  • a date of a predetermined event.
• the information or information includes a program or a program fragment,
• the program is an updated version of a program already received in the pipette,
• the program is a custom program by a pipette user, and
• the pipette is a hand pipette.

According to the invention, an assembly comprising a pipette and a program arranged to allow transmission of a information between the pipette and a computer that has received the program.

In addition, according to the invention, a recording medium of data comprising a program capable of implementing a transmitting at least one information between a pipette and a computer.

Finally, according to the invention, a method of controlling a pipette into which at least one information is transmitted between the pipette and a computer.

• La figure 1 est une vue en perspective d'une pipette selon un mode préféré de réalisation de l'invention ;
• La figure 2 est une vue partielle en perspective de la partie haute de la pipette de la figure 1 ;
• La figure 3 est une vue de la face d'extrémité supérieure de la pipette de la figure 1 ;
• La figure 4 est une vue en perspective éclatée de la partie haute de la pipette de la figure 1 ;
• La figure 5 est un schéma illustrant la connexion entre la pipette de la figure 1 et un ordinateur pour la transmission d'informations ;
• Les figures 6 et 7 sont des schémas expliquant un mode de fonctionnement de la pipette ; et
• La figure 8 est une vue analogue à la figure 5 présentant une variante de réalisation de l'invention.

Other features and advantages of the invention will become apparent in the following description of a preferred embodiment and a variant given by way of non-limiting example with reference to the accompanying drawings, in which:

• Figure 1 is a perspective view of a pipette according to a preferred embodiment of the invention;
• Figure 2 is a partial perspective view of the upper part of the pipette of Figure 1;
• Figure 3 is a view of the upper end face of the pipette of Figure 1;
• Figure 4 is an exploded perspective view of the top of the pipette of Figure 1;
• Fig. 5 is a diagram illustrating the connection between the pipette of Fig. 1 and a computer for transmitting information;
• Figures 6 and 7 are diagrams explaining a mode of operation of the pipette; and
• Figure 8 is a view similar to Figure 5 showing an alternative embodiment of the invention.

FIGS. 1 to 4 show a preferred embodiment of the pipette according to the invention. In this example, the pipette 2 is a pipette hand, that is to say intended to be operated when held by hand by an user. The pipette works without the assistance of a base. This is in the species of a motorized pipette and thus comprising a motor 4 allowing to actuate an unillustrated piston whose movement causes the suction of the liquid in a removable cone 6 placed in the lower part of the pipette or its repression out of this cone. The pipette includes an electronic card 8 comprising a processor for pipette control and exchange information with the user. The pipette includes a battery 10.

The engine, the battery and the card 8 are enclosed in a housing of the pipette comprising a front half-shell 12 and a rear half-shell 14. In this example, these elements are in an upper part. of the pipette, while the piston is with other pieces in a lower part 18 of the pipette received by screwing removably on the upper part. The same upper part 16 can thus receive parts different 18 bass, for example to collect volumes of different liquid. In the present example, the pipette is a pipette single channel. We could replace the lower part 18 with a lower part comprising several channels to form the pipette in the form of a multichannel pipette.

The card 8 includes a screen 20 visible through a window 22 of the upper half-shell 12. The pipette includes control buttons 24 disposed on a front face of the upper half-shell 12 and on the sides of the pipette, and allowing the user to control the pipette. Among these buttons is a wheel 26 rotatably mounted around a axis 28 parallel to the window 22 and extending in the longitudinal plane median pipette. The wheel 26 is moreover movable to slide in a direction perpendicular to the general plane of the window 22 and the axis 28. The wheel 26 is recalled in its nominal position against its sliding by a spring not shown. This sliding allows the user to briefly push the wheel in order to click constituting a control action of the pipette. To this end the wheel partially emerges from the front face 12 and protrudes therefrom. The user can thus control the wheel by a click and by a rotational movement in one direction or the other.

The card 8 comprises a connector 40 accessible from outside the the pipette, as shown in Figures 2 and 3. This is a female to the IEEE 1394 mini standard.

According to the invention, as shown in FIG. electrical signal transmission 42 having one end 44 comprising a plug able to be received in this connector. The other end 46 of the cable includes an RS 232 plug or socket that can be connected to a port USB 48 of a computer 50 such as a desktop.

The card 8 as the computer includes a module type conventional signal processing through the cable. By these means, pipette is able to transmit information to the computer 50 and to to receive. The card is programmed at the factory during the manufacture of the pipette by receiving several programs allowing the control of the pipette by the user. On this basis, the pipette can receive information or data from a computer or transmit it to that last to realize the following features. The program (s) to implement these features will appear in the description of the actions to be performed by the user, knowing that writing the detail of these programs once their functionality has been established does not present any difficulty.

Update of the embedded software.

The factory-registered software in card 8 can be updated thanks to the cable 42 from the computer. These updates can be made by the manufacturer of the pipette at the end of manufacture, or by the end user of the pipette when informed by the manufacturer that new version of the program is available. This new version can for example to be sent to him on a recording medium 62 such as a CD or DVD disc, or via the Internet.

Enter a serial number into the pipette.

At the end of the manufacture of the pipette, after the calibration operations and validation that will be presented below, the manufacturer incorporates a serial number in the pipette. This number, preferably, will be identical to a number engraved on the case of the pipette. The cable allows you to enter this number in the card 8.

Calibration during production.

At the end of assembly, the pipette is calibrated by the manufacturer. For this, several volumes of liquid withdrawal are set on the pipette, and the volumes actually taken after each adjustment are measured. The input of the values actually measured in the pipette allows him to calibrate using a suitable program. These data are transmitted to the pipette through the cable 42.

Automation of production steps.

• on peut inclure dans la carte 8 des données sur la pipette pour l'informer de son type de pipette : pipette monocanal, pipette à huit canaux ou à douze canaux, volume nominal de pipette par exemple ;
• on peut entrer dans la pipette une série de données de gravimétrie en vue de sa calibration comme indiqué ci-dessus ;
• on peut convertir des poids en volumes et faire différentes opérations (calcul d'une moyenne, d'un écart type, etc) ;
• on peut ajouter des valeurs de volumes dans la pipette ;
• on peut transmettre à la pipette une nouvelle série de données de gravimétrie pour contrôler la calibration effectuée précédemment ;
• on peut intégrer dans la pipette son numéro de série comme indiqué précédemment.

The connection of the pipette with the computer by means of the cable makes it possible to automate six production steps necessary at the end of assembly:

• pipette data can be included in the card 8 to inform it of its pipette type: single-channel pipette, eight-channel or twelve-channel pipette, nominal pipette volume for example;
• a series of gravimetric data can be entered into the pipette for calibration as indicated above;
• we can convert weights into volumes and do different operations (calculation of an average, a standard deviation, etc.);
• volume values can be added to the pipette;
• a new series of gravimetric data can be pipetted to control the calibration performed previously;
• the pipette can be integrated into its serial number as previously indicated.

Data recovery by the after-sales service.

• le numéro de série de la pipette ;
• l'identification de la pipette et de sa version ;
• le nombre de pipetages restant à effectuer avant d'atteindre une quantité nominale totale de pipetages de la pipette ;
• le nombre de pipetages effectués depuis la dernière opération de maintenance ;
• le nombre de pipetages effectués depuis la sortie de la pipette de l'usine ;
• la date de la dernière maintenance ;
• des données de calibration relatives à un point : le volume cible et le volume effectivement mesuré ;
• des données ou paramètres de calibration standard : le volume mesuré au volume minimum, le volume mesuré à 50% du volume maximum, et le volume mesuré à 100% du volume maximum.

The cable 42 allows the manufacturer's after-sales service to transfer data from the pipette to a computer. These data can thus be studied or modified. This will be for example the following data:

• the serial number of the pipette;
• identification of the pipette and its version;
• the number of pipetings remaining to be performed before reaching a total nominal quantity of pipetting of the pipette;
• the number of pipetings performed since the last maintenance operation;
• the number of pipetings made since the pipette outlet of the plant;
• the date of the last maintenance;
• calibration data relating to a point: the target volume and the volume actually measured;
• standard calibration data or parameters: the volume measured at the minimum volume, the volume measured at 50% of the maximum volume, and the volume measured at 100% of the maximum volume.

The after-sales service can also by this means verify that the downloads of information or programs such as those defined by the user or by the manufacturer have been carried out properly and 100%. This verification will not necessarily be done by comparing the program content. Indeed, we can expect that the syntax of programs contains in itself all the information necessary for a non-comparative analysis on this occasion.

Definition of own programs by the user.

The pipette is programmed so that the user is able to define their own programs or customized programs, and this by the selection and organization of basic tasks set by the user and preprogrammed into the pipette. The user develops his personalized programs via the computer 50 and in particular the screen 52 and its 54. Thus, the software present in the pipette includes two modes of operation: a first mode called "publisher mode", and a second mode called "maintenance mode". This is the first mode that allows the user to define his own programs of compound sampling of a succession of elementary tasks or useful instructions that the user agency according to his needs. These tasks possess usually personalization settings. We present below some of these tasks and examples of parameters to define.

Air suction

• le volume d'air à aspirer ;
• la vitesse d'aspiration de ce volume. Il peut pour cela sélectionner une vitesse parmi un nombre prédéterminé de vitesses disponibles par défaut dans la pipette, par exemple au nombre de cinq ; et
• le nom de cette tâche par exemple avec un nombre quinze caractères au maximum. Par défaut, le nom affiché de cette tâche est « aspiration d'air » ou « air gap ».

It acts of a sequence of aspiration of a volume of air by the pipette defined by the program. During this task, the pipette will display on its screen 20 a name instead of the volume value. For this task, the user programs:

• the volume of air to be sucked;
• the suction speed of this volume. It can for this purpose select a speed among a predetermined number of speeds available by default in the pipette, for example five in number; and
• the name of this task for example with a maximum of fifteen characters. By default, the displayed name of this task is "Air Suction" or "Air Gap".

Alarm.

This is a sequence that emits two beeps with approximately 500milliseconds apart. Beeps are emitted even if the generator sound of the pipette has been disabled by the user when setting it of the pipette.

aspiration

• le volume à aspirer ;
• la vitesse d'aspiration de ce volume, ici encore réglable parmi un nombre de vitesses disponibles par défaut dans la pipette ;
• le nom de la tâche avec quelques caractères. Par défaut, le nom de cette tâche pourra être « aspiration » ou « aspirate ».

This task is a suction sequence of a liquid. The user sets the following parameters:

• the volume to be sucked;
• the suction speed of this volume, here again adjustable among a number of speeds available by default in the pipette;
• the name of the task with a few characters. By default, the name of this task can be "aspiration" or "aspirate".

Dilution

• le volume de l'aspiration d'air ou air gap entre chaque prélèvement de liquide ;
• le volume à aspirer pour chaque liquide ;
• les vitesses d'aspiration de chaque liquide, par exemple à sélectionner parmi les vitesses prédéterminées ;
• six noms au maximum à entrer ( y compris l'aspiration d'air). En l'absence de nom, c'est le volume qui sera affiché.

This task allows the dilution of two to five liquids. For this, the user defines the volume of the five liquids, the five speeds, and possibly the name of the five liquids intended to be displayed instead of the volume on the screen 20. For this, it more precisely regulates the following parameters:

• the volume of the air intake or air gap between each sample of liquid;
• the volume to be sucked for each liquid;
• the suction speeds of each liquid, for example to be selected from the predetermined speeds;
• maximum six names to enter (including air intake). If there is no name, the volume will be displayed.

Refoulement.

• le volume à refouler ;
• la vitesse de refoulement de ce volume à sélectionner par exemple parmi les vitesses disponibles ;
• le nom de la tâche au moyen de caractères, à défaut de quoi c'est un nom de tâche par défaut qui sera affiché.

This task consists of a repression sequence. The user's settings are:

• the volume to be repressed;
• the delivery speed of this volume to be selected for example from the available speeds;
• the name of the job using characters, otherwise a default job name will be displayed.

Manual operation .

• une tâche de type mode manuel dans laquelle on définit le volume de travail, la vitesse d'aspiration, et le choix du bouton inverseur permettant de changer de sens. La sortie de la procédure est automatique lors du retour à 0 ;
• Une tâche de type manuel en aspiration uniquement : on définit le volume d'aspiration, sa vitesse et la vitesse de refoulement, le bouton inverseur permettant de sortir de la tâche ;
• Une tâche de type manuel en refoulement uniquement : on définit le volume de refoulement et sa vitesse, le bouton inverseur permettant de sortir de la tâche. A chaque fois on passe à un nom qui sera affiché à la place du volume au centre de l'afficheur avec un nombre de caractères maximum prédéterminé.

The manual mode simulates the use of a manually operated pipette. Thus, in the automatic modes "suction" and "discharge", a click on the start button initiates the aspiration or the repression of the complete volume. However, in the manual mode, suction or discharge occurs only if the pressure on the start button is maintained. Aspiration or repression of the defined volume can therefore be done in several times. There are several types of manual tasks:

• a manual mode type task in which one defines the working volume, the suction speed, and the choice of the reversing button allowing to change direction. The output of the procedure is automatic when returning to 0;
• A manual type task in suction only: we define the suction volume, its speed and the delivery speed, the changeover button to exit the task;
• A manual-type task in discharge only: one defines the volume of discharge and its speed, the button inverter making it possible to leave the task. Each time we move to a name that will be displayed instead of the volume in the center of the display with a predetermined maximum number of characters.

Mixed.

• le volume du mélange ;
• la vitesse d'aspiration de ce volume à sélectionner par exemple parmi les vitesses disponibles par défaut dans la pipette ;
• la vitesse de refoulement de ce volume à sélectionner ici encore éventuellement parmi les vitesses disponibles par défaut ;
• le nombre de cycles de mélange à effectuer, compris par exemple entre 1 et 99. Si le nombre restant de cycles à effectuer est nul, la pipette attend que le bouton de démarrage soit relâché pour arrêter le cycle de mélange ;
• le nom de la tâche, à défaut de quoi c'est le mot « mélange » qui sera affiché.

This task consists of making a mix. For this, the liquid will be sucked and pumped a predetermined number of times. The parameters to be set by the user are as follows:

• the volume of the mixture;
• the suction speed of this volume to be selected for example from the speeds available by default in the pipette;
• the delivery speed of this volume to be selected here again optionally from the speeds available by default;
• the number of mixing cycles to be performed, for example between 1 and 99. If the remaining number of cycles to be performed is zero, the pipette waits for the start button to be released to stop the mixing cycle;
• the name of the task, otherwise the word "mixture" will be displayed.

Normal mode.

This is an instruction that switches the pipette into a mode of operation where the pipetting signaling is conventional. This instruction returns to standard pipetting after the inversion instruction. The The difference between these two modes of pipetting is presented below.

Pause.

This is a task that stops the running of a mode or a program for a user defined time T. This time will be example between 0 and 999.9 seconds with an increment of 0.1 second. The adjustable parameters are the duration of the stop and the name of the task.

Purge.

This task consists of a piston movement that ensures that all the collected liquid is repressed. There are three types of purges. First of all, automatic purge which is the standard purge that is found in the mode of automatic withdrawal with an optional stop in the low purged position. This optional stop is selected by keeping the start button pressed. Then the stop bleed makes a mandatory stop in the down position. A pressing the start button will complete the purge cycle. The "direct" purge does not stop in the down position, even when the start button is pressed. The setting parameter consists of the name of this task to display on the screen. Otherwise, this is the name of the task in one of these three options will be displayed.

Repetition of aspirations .

• le volume à aspirer ;
• les vitesses d'aspiration par volume ;
• les noms correspondants ;
• le type d'attente après chaque aspiration.

This task performs a predetermined number of aspirations with a number of different or different volumes and a number of associated speeds. After each volume, we must define the type of waiting to be done: either a period of time, or a pressure on the start button. The parameters to be adjusted are:

• the volume to be sucked;
• aspiration speeds by volume;
• the corresponding names;
• the type of waiting after each aspiration.

Repetition of repression.

• les volumes à refouler ;
• les vitesses des refoulements respectifs ;
• les noms respectifs ;
• le type d'attente après chaque refoulement.

This task performs a number of upsets with different or different volumes and associated speeds. After each volume, we must again define the type of waiting, namely either a period or a pressure on the start button. The parameters to be adjusted are:

• the volumes to be repressed;
• the speeds of the respective upsets;
• the respective names;
• the type of waiting after each refoulement.

Inverted mode .

This mode switches the pipette into reverse or reverse mode. This mode changes the pipetting signaling. For this task, the user no parameters to configure. With reference to FIG. 6, the signage of pipetting is indeed the one in which the triggering of the sampling produces a suction until the expected volume V, then the triggering of the repression produces the expulsion of this volume with supplement the purge volume. Conversely, as shown in Figure 7, in the inverted mode, both the volume V intended for the collection and additional volume or "extra-flight". During suction, we aspire a volume of liquid equal to the sum of the volume V and additional volume "extra flight". Without stopping, aspiration is followed by a repression of half the additional volume "extra flight". A pressing the button again causes the expulsion of a quantity of liquid equal to the volume V without expulsion of the additional half volume remaining. It is when the departure of the purge takes place that this volume is expelled with the purge volume.

Waiting.

This task stops a mode from running for the duration of the user leaves the start button pressed or waiting for it press the start button. The user has no settings to perform here.

Integration of new modes .

If the manufacturer markets complex programs that meet the specific needs, the cable link allows the user to integrate these programs in the pipette.

Calibration of the pipette by the user.

The user can calibrate his pipette himself in the same mode operative than the factory calibration explained above. So the user measures volumes actually collected by forecasting three target volumes on the pipette, for example the minimum volume, a volume at 50% of the volume maximum, and a volume at 100% of the maximum volume. The pipette is self-adjusting thanks to the program provided for this purpose after the user has pipette the value of the volumes measured for these samples respectively.

One point calibration .

Similarly the user may wish to calibrate his pipette on a volume that he uses frequently or preferentially. For this the user program the desired volume and take a sample of which it measures the effective volume. It transmits the value thus measured to the pipette which caliber at this point.

Maintenance information.

The software received in the computer 50 and associated with the pipette allows the user to read on the screen 52 and to write by means of the keyboard 54 maintenance parameters of the pipette.

• la date de la dernière maintenance ;
• le nombre total de prélèvements effectués ;
• le nombre de pipetages depuis la dernière maintenance ;
• la valeur du volume limite si a été défini un volume limite inférieur au volume nominal de la pipette. L'utilisateur ne pourra pas régler un volume a prélever supérieur à cette limite. Cette fonction est utile lorsqu'on utilise des cônes de volume inférieur au volume nominal de la pipette ;
• les valeurs utilisées pour la calibration ; et
• les valeurs utilisées pour la calibration en un point.

Thus the following parameters can be read in the pipette:

• the date of the last maintenance;
• the total number of samples taken;
• the number of pipettings since the last maintenance;
• the value of the limit volume if a lower volume has been defined than the nominal volume of the pipette. The user will not be able to adjust a volume to be collected higher than this limit. This function is useful when using cones of smaller volume than the nominal volume of the pipette;
• the values used for the calibration; and
• the values used for one-point calibration.

• la date de la prochaine maintenance ;
• les valeurs à prendre en compte pour la calibration ;
• les valeurs à prendre en compte pour la calibration en un point ; et
• la valeur du volume limite.

The following parameters can be written in the pipette:

• the date of the next maintenance;
• the values to be taken into account for the calibration;
• the values to be taken into account for one-point calibration; and
• the value of the limit volume.

During calibration operations, once the processor has of programmed volume / measured volume values, the processor calculates one or more equations corresponding to volume ranges different. When using the pipette, where each equation allows then the processor to calculate from the value programmed by the user when adjusting the volume to take a corrected value. It is this corrected value (or any other corrected value possibly calculated for another reason from this first corrected value) that will actually displayed by the display 20 when using the pipette by the user to indicate the volume set for sampling. So, this mode of operation is transparent to the user who has only the impression of setting a volume to be withdrawn having the value displayed on the display. In fact, the manual setting of the value to be taken causes the transmission of the raw value to the processor that applies the corresponding equation or matrix and gets the corrected value that will be used to display on the screen.

It can be provided, as illustrated in FIG. 8, that the pipette variant or in addition comprises means 60 for transmitting wireless data with the computer 50. For this purpose, the pipette as well as the computer will be equipped with signal processing and transmission-reception of signal. These transmissions may for example take place with the IEEE 802.11 WIFI standard for 802.11a, 802.11b, 802.11 f, or 802.11 g. In addition, the transmission may be made according to BLUETOOTH standard, the latest version of which is IEEE 802.15.1.

Of course, we can bring to the invention many changes without departing from the scope thereof.

It will be possible to provide a pipette implementing the program or programs mentioned above but not having the transmission means according to the invention. In this case, the data can be obtained from the pipette by reading on the screen. Data can be entered into the pipette using the various buttons and the wheel.

Claims (14)

Pipette (2) characterized in that it comprises means (8, 40, 60) for transmitting at least one information between the pipette and a computer (50). Pipette according to the preceding claim characterized in that it comprises at least one connector (40) for receiving an information transmission cable (42). Pipette according to any one of the preceding claims, characterized in that it comprises means (60) for transmitting wireless information. Pipette according to any one of the preceding claims, characterized in that the transmission means are capable of transmitting information from the pipette to the computer. Pipette according to any one of the preceding claims, characterized in that the transmission means are able to transmit information from the computer to the pipette. Pipette according to any one of the preceding claims, characterized in that the information or information comprises data. Pipette according to the preceding claim, characterized in that the data comprise at least one of the following data: a serial number of the pipette; a calibration data; a number of liquid withdrawals since a predetermined event; and a date of a predetermined event. Pipette according to any one of the preceding claims, characterized in that the information or information comprises a program or a program fragment. Pipette according to the preceding claim characterized in that the program is an updated version of a program already received in the pipette. Pipette according to any one of claims 8 or 9 characterized in that the program is a personalized program by a user of the pipette. Pipette according to any one of the preceding claims, characterized in that the pipette is a hand pipette. An assembly comprising a pipette and a program characterized in that it is arranged to allow transmission of information between the pipette and a computer having received the program. Data recording medium (62) characterized in that it comprises a program adapted to implement a transmission of at least one piece of information between a pipette (2) and a computer (50). A method of controlling a pipette (2) characterized in that at least one information is transmitted between the pipette (2) and a computer (50).

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