Lancing Actuator

摘要

A lancing actuator (114) includes a drive element (118) for driving a lancing element, the drive element being guided within a housing (112), a combined compression and torsion element (120) which, by a relaxing movement thereof, is adapted to drive the lancing motion, a combined triggering and driving device (122) having an actuating element (124) and a locking device (126), wherein the actuating element has an initial state and an actuated state and is accessible from the outside of the housing, wherein, in the initial state, the drive element is locked in the locking device under a torsional stress exerted by the combined compression and torsion element, wherein the combined triggering and driving device is configured in a manner that, when the actuating element makes a movement along an actuation path from the initial state into the actuated state, a torque is exerted on the drive element which prevails over the torsional stress exerted by the combined compression and torsion element such that the drive element is released from the locking device, which results in a triggering of the lancing motion.

主权项

1. A lancing actuator for driving a lancing element for sampling a body fluid, comprising
a drive element adapted for driving the lancing element to perform a lancing motion, the drive element being guided within a housing of the lancing actuator, a combined compression and torsion element which, by a relaxing movement of the combined compression and torsion element, is adapted to drive the lancing motion, a combined triggering and driving device having an actuating element and a locking device, wherein the actuating element has an initial state and an actuated state and is accessible from the outside of the housing, wherein, in the initial state, the drive element is locked in the locking device under a torsional stress exerted by the combined compression and torsion element, wherein the combined triggering and driving device is configured in a manner that, when the actuating element makes a movement along an actuation path from the initial state into the actuated state, a torque is exerted on the drive element which exceeds the torsional stress exerted by the combined compression and torsion element in a manner that the drive element is released from the locking device, which results in a triggering of the lancing motion.