Lancing actuator
First Claim
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, anda 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 completes a movement along an actuation path from the initial state into the actuated state, a torque is exerted on the drive element which opposes and 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.
3 Assignments
0 Petitions
Accused Products
Abstract
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.
6 Citations
26 Claims
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1. A lancing actuator for driving a lancing element for sampling a body fluid, comprising:
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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, and 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 completes a movement along an actuation path from the initial state into the actuated state, a torque is exerted on the drive element which opposes and 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A lancing actuator for driving a lancing element for sampling a body fluid, comprising:
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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 along a longitudinal axis, 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 includes a longitudinally extending sliding element that, when the actuating element completes a movement along an actuation path from the initial state into the actuated state, engages a beveled edge coupled with the drive element to thereby exert a torque on the drive element as the sliding element is longitudinally and slidingly advanced relative to the beveled edge and wherein, when an opposing torque exerted on the drive element by the longitudinal advancement of the sliding element exceeds the torsional stress exerted by the combined compression and torsion element, the drive element is released from the locking device which results in a triggering of the lancing motion. - View Dependent Claims (18, 19)
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20. A method for performing a lancing motion by operating a lancing actuator, comprising:
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a) triggering an actuating element of a lancing actuator in an initial state by means accessible from the outside of a housing;
whereby, in an initial state, a drive element is locked in a locking device under a torsional stress exerted by a combined compression and torsion element;b) moving the actuating element along an actuation path from the initial state into an actuated state through the triggering; c) exerting a torque on the drive element and tensioning the combined compression and torsion element through the moving of the actuating element; d) releasing the drive element from the locking device through the torque which opposes and exceeds the torsional stress exerted by the combined compression and torsion element; e) relaxing the tensioned combined compression and torsion element; f) driving the drive element of the lancing actuator through the relaxing of the combined compression and torsion element and guiding it within the housing; and g) driving a lancing element adapted for sampling a body fluid to perform a lancing motion through the driving of the drive element. - View Dependent Claims (21, 22, 23)
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24. A method for performing a lancing motion by operating a lancing actuator, comprising:
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a) triggering an actuating element of a lancing actuator in an initial state by means accessible from the outside of a housing;
whereby, in an initial state, a drive element is locked in a locking device under a torsional stress exerted by a combined compression and torsion element, the combined compression and torsion element having first and second ends wherein the first end is rotationally secured to relative to the actuating element and second end is rotationally secured relative to the drive element to thereby transmit torsional forces between the actuating element and the drive element;b) moving the actuating element along an actuation path from the initial state into an actuated state through the triggering; c) exerting a torque on the drive element and tensioning the combined compression and torsion element through the moving of the actuating element; d) releasing the drive element from the locking device through the torque which opposes and exceeds the torsional stress exerted by the combined compression and torsion element; e) relaxing the tensioned combined compression and torsion element; f) driving the drive element of the lancing actuator through the relaxing of the combined compression and torsion element and guiding it within the housing; and g) driving a lancing element adapted for sampling a body fluid to perform a lancing motion through the driving of the drive element. - View Dependent Claims (25, 26)
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Specification