Abstract: The invention relates to a device for removing body fluid with a puncture element that can puncture the skin of a body part. The device includes a housing structure for body fluids obtained from the skin puncture and a puncture drive for a back and forth movement of the puncture element. The duration of withdrawal movement is longer than the duration of the forward movement. The puncture drive is designed to withdraw the puncture element in a first withdrawal phase of the withdrawal movement with a maximum withdrawal speed of more than 0.02 m/s. A second retraction phase follows the first retraction phase. Body fluid is collected during the second retraction phase, which has a duration of between 0.3 and 0.8 seconds and/or a retraction speed of between 0.6 and 2 mm/s.

Abstract: The present invention provides a puncturing system for withdrawing body fluid. The puncturing system comprises a disposable puncturing unit, which includes a needle element for piercing into skin and a puncturing depth reference element with a skin contact area. The system includes a puncturing instrument which has a puncturing drive, wherein the puncturing drive is coupled by a coupling mechanism to the puncturing unit for driving the needle element to a puncturing depth, the puncturing depth being determined by the distance in the piercing direction between the skin contact area and the position of the tip of the needle at a reversal point of the puncturing movement. The puncturing depth reference element is connected to the needle element such that the puncturing depth reference element moves with the needle element during at least part of the puncturing movement.

Abstract: The invention relates to a lancet having a flat shaft (1) which has an upper side (1c) and a lower side (1b), the shaft (1) forming at a front end (2) a cutter (1a) which ends in a point (2), the cutter (1a) having on the underside (1b) two cutting edges (4), which run together at the point (2), and the shaft (1) having at least one depression (3) on its underside (1b) to receive a sample. The invention provides for the shaft, on its upper side (1c), to merge into the cutter (1a) at two edges (5) which run together at a vertex (6), and for the upper side (1c) of the cutter (1a) between the vertex (6) and the front end (2) to be curved convexly, as seen in cross section.

Abstract: The invention relates to a lancet, comprising a base body (2), which has a test region (3) on an upper face for analyzing a body fluid sample, a lancing element (4) extending from the base body (2) for puncturing the skin of a patient, and a capillary structure (5) for transporting a body fluid sample from the lancing element (4) to the test region (3). According to the invention, the capillary structure (5) comprises a section that causes fluid to be transported in a direction that, in a top view of the upper face of the base body (2), has a component perpendicular to the longitudinal direction of the lancing element (4).

Abstract: The invention relates to a device for removing body fluid with a puncture element that can puncture the skin of a body part. The device includes a housing structure for body fluids obtained from the skin puncture and a puncture drive for a back and forth movement of the puncture element. The duration of withdrawal movement is longer than the duration of the forward movement. The puncture drive is designed to withdraw the puncture element in a first withdrawal phase of the withdrawal movement with a maximum withdrawal speed of more than 0.02 m/s. A second retraction phase follows the first retraction phase. Body fluid is collected during the second retraction phase, which has a duration of between 0.3 and 0.8 seconds and/or a retraction speed of between 0.6 and 2 mm/s.

Abstract: The present invention provides a puncturing system for withdrawing body fluid. The puncturing system comprises a disposable puncturing unit, which includes a needle element for piercing into skin and a puncturing depth reference element with a skin contact area. The system includes a puncturing instrument which has a puncturing drive, wherein the puncturing drive is coupled by a coupling mechanism to the puncturing unit for driving the needle element to a puncturing depth, the puncturing depth being determined by the distance in the piercing direction between the skin contact area and the position of the tip of the needle at a reversal point of the puncturing movement. The puncturing depth reference element is connected to the needle element such that the puncturing depth reference element moves with the needle element during at least part of the puncturing movement.