Roche Diagnostics Operations, Inc.

Kuhnke Automation Gmbh & Co. Kg

Roche Diabetes Care, Inc.

F. Hoffmann-la Roche Ag

Hamburg Innovation Gmbh

Helmut-schmidt-universitat-universitat Der Bundeswehr Hamburg

Jens Storjohann

Mathias Jotter

Manfred Rufer

Frank Deck

Christian Hoerauf

Borgar Pfeiffer

Malte Hinrichs

Wolfram Heisen

Torsten Grunwald

Hartmut Berg

Jens MÜLLER

Silka Grimske

The present invention relates to a lancet device, by which a lancet can be displaced along a piercing path for generating a piercing wound in a skin surface, in particular to obtain bodily fluid for diagnostic purposes, comprising a lancet drive having drive means to generate a drive force for a piercing movement of the lancet along the piercing path in the direction toward the skin surface. According to the present invention, the lancet drive comprises a magnet, by which a magnetic retention force oriented opposite to the drive force may be generated, and the lancet drive also comprises triggering means, by which the retention force may be reduced enough that the lancet is accelerated in the direction toward the skin surface under the effect of the drive force generated by the drive means. The present invention also relates to a method for generating a piercing wound, in which the drive spring is held in a tensioned state using a magnetic retention force oriented opposite to the drive force before the triggering of a piercing wound.

Lancet device

An actuation magnet is provided for moving a closure needle of a hot-runner nozzle of an injection molding tool. The actuation magnet has an armature which is coupled in movement to the closure needle and may be displaced between first and second cores by subjecting at least one coil to current. A permanent magnet is arranged in a manner such that it exerts an additional magnetic force on the armature in at least one, preferably two, movement directions.

Actuation magnet for moving a closure needle of a hot-runner nozzle of an injection molding tool

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Hamburg, Germany

Jens Storjohann