The device has a driving device accommodated in a housing and arranged to provide drive force. A piercing mechanism (2) is coupled to the driving device over a coupling mechanism such that the drive force for repeated piercing movement is coupled to the piercing mechanism by the coupling mechanism. The piercing mechanism includes a base (8) with a distal effective area (10) over which multiple piercing elements (9) arranged at distance are distributed. The base is tiltably supported relative to the housing.
