Hamilton Bonaduz Ag

Silvio Walpen

Hanspeter Romer

Fridolin Gysel

Reto Ettinger

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

The present invention relates to a pipette device with a pipette channel which extends along a channel axis defining an axial direction and which passes through a channel component arrangement which, at a coupling longitudinal end, has a coupling configuration for the releasable coupling of a pipette tip. The coupling configuration has a locking component with a radially outwardly facing engagement surface arrangement, which is movable between a locking position more radially remote from the channel axis and an unlocking position lying radially closer to the channel axis. The coupling configuration has a sealing component separate from the locking component, and that the actuator drive has a switchable magnetic field source and a reaction component which is movable by the locally changing magnetic field thereof and which is connected to the locking actuator in such a way as to transmit movement.

Pipette device with electromagnetically drivable locking actuator for locking releasably coupled pipette tips

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 () 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).

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Thalwil, Switzerland

Silvio Walpen