Hamilton Bonaduz Ag

Tecan Trading Ag

Hanspeter Romer

Fridolin Gysel

Silvio Walpen

Reto Ettinger

Jürg Rast

Jonas Hilti

Nikolaus Ingenhoven

Fred Schinzel

Markus Wiggli

Vinzenz Kirste

Manuel Altmeyer

Eduard Nawrocki

Peter Muerset

Urs Knecht

Meinrad Franz Hofstetter

Ingo Schwaiger

Urs Lendenmann

Martin Gajewski

Mario Arangio

Gregor Batliner

Alois Oberholzer

Heidi Cattaneo

Martin Rupp

Anselm Sickinger

Andreas Schlegel

Christoph Blattmann

Peter Mürset

An integrated motor cartridge () for connection to and for use in a pipetting system comprises a housing (); a guide tube (); a piston () provided with a plurality of permanent magnets (), the piston having a pressure tube facing side and a pressure tube distal side, the piston being arranged in the guide tube and the piston having at least one seal () with respect to the guide tube; and a coil assembly () by means of which the piston can be moved in the guide tube when power is supplied to the coil assembly; wherein the guide tube, the piston and the coil assembly are arranged in the housing. The integrated motor cartridge further comprises a pressure tube connection () by means of which the guide tube, on the pressure tube facing side of the piston, can be connected to a pressure tube of the pipetting system in a gastight manner; and a power connection () which is coupled to the coil assembly and adapted to be coupled to a power supply arranged outside of the integrated motor cartridge; wherein the integrated motor cartridge can be introduced into and removed from the pipetting system as a unit.

Integrated motor cassette for connection to and for use in a pipetting system, pipetting system, and method for exchanging an integrated motor cassette of a pipetting system

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.

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 pipetting unit(s), a guide assembly with at least one guide rail on which the pipetting unit(s) is guided in order to be moved along a movement axis, and a linear drive assembly, by which the pipetting unit(s) can be driven in order to be moved along the movement axis. The linear drive device has a stationary stator, and the at least one pipetting unit forms a linear drive assembly rotor which can be moved along the movement axis relative to the stator. The pipetting device also has at least two rotor magnet assemblies which interact with the same common stator magnet assembly so as to generate a drive force and which are arranged at a distance from one another along a spacing axis that is orthogonal to the movement axis. The common stator magnet assembly is located between the at least two rotor magnet assemblies.

Pipetting device with a stator magnet assembly, which can be used on both sides, as part of a linear-motor drive of a pipetting unit

A pipetting apparatus and method for pulsed dispensing of small metered-liquid doses of no more than 1 &#x3bc;l. The apparatus includes a pipetting conduit at least partly filled with working gas, a pressure-modifying apparatus for modifying the pressure of the working gas, and a control apparatus for applying control to the pressure-modifying apparatus. The control apparatus can control the pressure-modifying apparatus so as to generate in the pipetting conduit, with respect to a reference holding pressure in the pipetting conduit which is necessary for immovable holding of the metered-liquid quantity, an overpressure pulse having a pulse duration of no more than 40 ms.

Pipetting device for an improved pulse-based pipetting of liquid

A magnetic isolating apparatus () for isolating magnetic particles () from a suspension has an immersion section () which is designed to be temporarily immersed in the suspension, a guide apparatus () which extends along a guide path (F), a magnet arrangement () which is guided by the guide apparatus () such that it can be moved between an active position which is situated close to the immersion section () and an inactive position which is positioned further away from the immersion section () along the guide path (F), so that a magnetic field in the region of the immersion section () can be changed by moving the magnet arrangement () between the active position and the inactive position, and a drive apparatus () by which the magnet arrangement () can be driven to move at least in a direction between the active position and the inactive position, wherein the drive apparatus () is coupled in a non-physical manner to the magnet arrangement () by a force field and/or a fluid so as to transmit drive force.

Magnetic isolating apparatus with non-physical coupling between a magnet arrangement and the movement drive of said magnet arrangement

A pipetting apparatus () having a guidance frame () having a first linear guidance rail () and having a second linear guidance rail (), the first and the second linear guidance rail () proceeding parallel to one another along a displacement axis (VL) and being provided at a distance from one another orthogonally to the displacement axis (VL), and having a pipetting channel () which extends along a channel axis (K) that is nonparallel, preferably orthogonal, to the displacement axis (VL) and which is guided displaceably along the displacement axis (VL) with a first bearing component () on the first linear guidance rail () and with a second bearing component () on the second linear guidance rail (), is characterized in that the first and the second bearing component () are arranged with a spacing (A) from one another along the displacement axis (VL).

Pipetting device having a displaceable pipetting channel having enlarged supporting location spacing

A pipetting device has a pipetting channel extending along a channel path, in which a piston is accommodated to be movable along the channel path to change the pressure of a working gas that wets the piston on a dosing side facing the dosing liquid. The pipetting device includes a movement drive for driving the piston along the channel path and a control unit configured to operate the movement drive for pipetting a predetermined single dosing volume of less than 5 &#x3bc;l with the piston moving in the pipetting direction and its dosing side end face sweeping over a pipetting volume which is not less than 1.4 times greater than the single dosing volume, and subsequently moving in a counter pipetting direction and its dosing side end face sweeping over a counter pipetting volume, wherein not more than 50 ms elapse between beginning control signals.

Pipetting device for pipetting small volumes of liquids

A scale and related method for a length-measuring system for recording the absolute values of angles or distances. The scale includes a printed circuit board, at least one track for identifying length information or angle information and a coding for identifying the scale. The coding has at least one coding element comprising at least two electrodes and a conductive connection between the electrodes on an insulator substrate. The electrical connection is configured to be irreversibly destroyed when an electrical current is applied.

Scale for a length measuring system and method for producing the same

A linear motor, comprises at least one stator device () with a plurality of permanent magnets (--) of different polarity and with at least one carrier rail (), and at least one rotor device () with at least three electrical coils () and with at least one supporting means (), which can be or which is supported on the carrier rail () of the stator device (), wherein the rotor device () and the stator device () are moveable to and fro with respect to each other along a movement direction (FR) defined by the carrier rail () by interaction of magnetic fields of the permanent magnets (--) with the magnetic fields of the coils (), through which current flows if required, wherein the stator device () is formed from at least one stator module (--), wherein the stator module (--) is configured such that a stator device () with two or more consecutively arranged stator modules (--) can be formed, and wherein at the stator module (--) at least one measurement track (---) scannable by a sensor unit (--) of the rotor device () is provided, which runs substantially parallel to the movement direction (FR). On the rotor device () at least two sensor units (--) scanning the measurement track (---) are provided, which are arranged along the movement direction (FR) of the rotor device () in a distance (SA) such that if the rotor device () is arranged on a connection point (, L) between two stator modules (--) the respective measurement tracks (---) of the adjacent stator modules (--) are scannable by one of the two sensor units (--), respectively.

Linear motor having a plurality of sensor units and a modular stator setup

The invention relates to a pipetting device, comprising at least two pipetting channels ('), which extend along a channel axis (K) and which each can be adjusted along the channel axis (K), wherein the pipetting device () has a displacement drive, by means of which each pipetting channel (&#x2032;) can be displaced independently of the other pipetting channel (&#x2032;) along a displacement axis (V) orthogonal to the channel axis (K) regardless of an adjustment along the channel axis (K), wherein the displacement drive comprises a linear motor, the stator of which has at least two magnet arrangements (), which comprise a row of magnets () on a magnet carrier (), said magnets being consecutive along the displacement axis (V) and being arranged differently with regard to the polarity (P, P) thereof, and the armature of which (at, at&#x2032;); has at least one conductor loop arrangement (), which comprises at least one set of three conductor loops () that are consecutive along the displacement axis (V), each of which conductor loops is or can be associated with a different phase of a three-phase supply, wherein each pipetting channel (&#x2032;) has at least one conductor loop arrangement (&#x2032;), wherein the armatures (at, at&#x2032;) of two pipetting channels (&#x2032;) directly adjacent along the displacement axis (V) are associated with different magnet arrangements () and interact therewith.

Pipetting device having a linear motor

A device for transferring and characterizing objects positions the object on a horizontal work field. The device includes at least one rail extending parallel to the X direction and a displacement unit, movable back and forth in the X direction, having a motorized gripping mechanism for grasping an object. A processor for controlling movements of the displacement unit and actions of the gripping mechanism is distinguished in that the displacement unit includes a carrying device, movable together therewith along the rail, for transferring objects in the X direction. The carrying device is a plate for carrying objects moved onto this carrying plate using the gripping mechanism. According to a method of the invention, objects are moved onto the plate of the carrying device, transferred in the X direction, and deposited again at a second position.

Device and method for transferring objects

System, method, and computer program product for synchronizing a system for aspirating and/or dispensing of liquid samples that includes a microejection device and a pump, which are connected with one another via tubing, wherein a computer is capable of being loaded with an activatable computer program product for synchronizing operation of the microejection device and the pump. Embodiments are characterized in that the loaded and activated computer program product, directs the computer to control and synchronize the system: (a) to actively define a sample volume and dispense the defined sample volume using the microejection device, which is filled with sample liquid; and (b) to track a part of the pump that conveys liquid around a value, dependent on the sample volume, which is defined and is actively dispensed only by the microejection device, to prevent excessive pressure differences in the microejection device, tubing, and pump.

Growing community of inventors

Hinwil, Switzerland

Hanspeter Romer