Roche Diagnostics Operations, Inc.

Roche Diabetes Care, Inc.

F. Hoffmann-la Roche Ag

Hartmut Berg

Frank Deck

Christian Hoerauf

Mathias Jotter

Manfred Rufer

Torsten Grunwald

Malte Hinrichs

Jens Storjohann

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

Growing community of inventors

Malente, Germany

Hartmut Berg