Patent classifications
B01L3/0237
HANDHELD FLUID TRANSFER APPARATUS, LABORATORY SYSTEM COMPRISING THE HANDHELD FLUID TRANSFER APPARATUS, AND METHOD FOR OPERATING A HANDHELD FLUID TRANSFER APPARATUS OR THE LABORATORY SYSTEM
The invention relates to a handheld fluid transfer apparatus, more particularly a pipette or repeater pipette, and a laboratory system comprising the handheld fluid transfer apparatus, which comprises: a control apparatus, which comprises a data processor capable to execute a control program for controlling at least one electronically controllable function of the handheld fluid transfer apparatus using input data, a user interface device for receiving a user input, the user interface device comprising a motion sensor device for measuring motion data of the handheld fluid transfer apparatus and for providing at least one motion data sequence, which contains subsequently measured motion data, a motion data memory for storing the at least one motion data sequence, an evaluation device being configured to determine the input data in dependence on the evaluation of the at least one motion data sequence. The invention furthermore relates to a method for operating the fluid transfer apparatus or the laboratory system.
Liquid handling device and a method for energizing a liquid handling device
According to an example aspect of the present invention, there is provided a liquid handling device comprising: means for harvesting energy; energy storage arranged for storing the harvested energy in the liquid handling device; and an electronic component connected to the energy storage and configured to use the energy storage as a power source.
Device and method for determining the quality of pulsed dispensing of liquid according to the air displacement principle
A pipette device comprises a pipette channel filled with compressible working gas, a pipette piston movable along the pipette path, a piston drive, which drives the pipette piston, a control device, a data memory connected to the control device for signal transmission, a pressure sensor which detects the pressure of the working gas and which is connected to the control device, a position sensor which detects a position of the pipette piston and which is connected to the control device. The control device is designed to determine a quality of a dispensing sequence on the basis of a target residual quantity value, which represents the target residual quantity of dosing liquid remaining in the pipette channel, of a working gas pressure and of an end position of the pipette piston, in each case after the end of the dispensing sequence, and to output the determined quality.
Pipettor system
Various embodiments include a system having a pipetting chamber, a set of pipettor cartridges docked in the pipetting chamber, a gantry system mounted on a ceiling within the pipetting chamber, the gantry system including at least one stationary track aligned in a first direction, and a movable track aligned in a second direction distinct from the first direction, the movable track coupled to the at least one stationary track, and a carrier configured to transport each of the set of pipettor cartridges to a pipetting location within the pipetting chamber, the carrier configured to move each pipettor cartridge in a third direction perpendicular to both the first and second directions.
HAND-HELD PIPETTING DEVICE
The invention relates to a pipetting device with a touch screen and a system comprising said pipetting device. The operating concept of this pipetting device provides that values of pipetting parameters can be set by a user on at least one input screen page, that actuation of the actuating element leads to the display of an output screen page and to the start of a pipetting operation defined according to the pipetting parameters, and that touching a separate input field of the output screen page leads back to an input screen page.
Multi-Tiered Pipette Tip Holder and Ejection Mechanism for a Dynamic Broad Volumetric Range Pipette
Broad volumetric range pipettes with multi-tiered pipette tip holder and ejection assemblies and methods of using such pipettes are disclosed herein. These pipettes typically include a concentric cylinder arrangement with each outer cylinder configured for contacting and dislodging a pipette tip attached to the tip holder portion of the immediately adjacent inner cylinder. In this manner, different sized pipette tips can be used on a single device. In addition, a locking mechanism is described for locking the large tip holder into a downward position to minimize the extension of the small tip holder and thereby enabling attachment of large, filtered pipette tips and reducing/eliminating the risk that the liquid being transferred will contaminate the pipetting device.
Method for determining the consumption of at least one substance
Disclosed is a method for determining a starting amount of a first substance which is required for providing a predeterminable number of samples in a liquid handling process. Also disclosed is a corresponding computer program and a corresponding computer program product. The liquid handling process is described through at least one work step, taking into account at least one secondary condition. An estimated value for the starting amount of the first substance is determined. A simulation of the at least one work step is then performed. A new estimated value for the starting amount is determined and the simulation is repeated if the prior simulation could not be completed or an actual value ascertained in the simulation deviates from the estimated value by more than a predeterminable tolerance. Otherwise, the actual value ascertained on the basis of the simulation is the starting amount of the first substance.
Pipetting device for pulsed pipetting with a pipetting piston movement controlled on the basis of a detection of the piston position
A pipetting device includes a pipetting channel at least partially filled with working gas, a pipetting tip accessible through a pipetting opening such that the volume of dosing liquid drawn into the receiving chamber can be varied by changing the pressure of the working gas in the receiving chamber, a pipetting piston for changing the pressure of the working gas and accommodated in the pipetting channel to be movable along the pipetting channel, a drive driving the pipetting piston to perform a movement along the pipetting channel, a control device controlling the drive, and a pressure sensor sensing the pressure of the working gas. The control device controls the drive to generate a pressure pulse in the pipetting channel based on the pressure signal output by the pressure sensor whereby the pressure of the working gas during the pulse follows a predefined working gas target pressure pulse curve.
Positive displacement pipette syringe identification system
Described are exemplary embodiments of a syringe identification system for use with a positive displacement pipette, such as a handheld powered positive displacement pipette. An exemplary syringe identification system may include a sensor, such as a color sensor, that is located at or near a distal end of the pipette and arranged such that the sensor is operative to read an identifying marking(s) on a syringe that has been installed to the pipette. The sensor may be a color sensor having an illumination source and configured to read a color code on the syringe. The color code may be usable to identify the syringe to the pipette.
PIPETTE TIPS, PIPETTE ASSEMBLIES, ASPIRATION AND DISPENSE SYSTEMS, AND METHODS OF PREVENTING PIPETTE TIP STICTION
A pipette tip configured to aspirate and dispense liquids. The pipette has a tip comprising an opening, wherein the pipette has one or more blades having a length extending at least partway from the tip, and at least some of the one or more blades include an acute-angled cutting edge along the length. In some embodiments, the pipette tip is part of a detachable pipette tip having a tip body with a first end configured to detachably couple to a pipette. Other detachable pipette tips, pipette tips, pipette assemblies, aspiration and dispense systems, testing apparatus, and methods of accessing a well through a well cover are disclosed.