Patent ID: 8828039

Claim:
A pricking device ( 1 ) for taking a blood sample, comprising: a moveable holder device ( 5 ) for a needle ( 4 ); a drive means ( 12 ) comprising a drive spring ( 9 ) for driving the moveable holder device ( 5 ); a trigger device ( 19 ) for triggering a pricking movement ( 13 ) of the needle ( 4 ), wherein after manual activation of the trigger device ( 19 ) the moveable holder device ( 5 ) can be moved axially by means of a spring force of the drive spring ( 9 ); and a tensioning device ( 22 ) for tensioning the drive spring ( 9 ), wherein the tensioning device ( 22 ) comprises: a tensioning mechanism ( 23 ) comprising a locking device ( 20 ) for axial locking of the moveable holder holding device ( 5 ) during tensioning of the drive spring ( 9 ); and spring elements ( 25 ) for performing work during tensioning of the drive spring ( 9 ); wherein the tensioning mechanism ( 23 ) comprises an axially moveable tensioning slide ( 11 ), wherein the axially moveable tensioning slide ( 11 ) has a sliding support and an arc-shaped curved track ( 7 ) that guides the moveable holder device ( 5 ) in a targeted manner; wherein the drive spring ( 9 ) is coupled to the sliding support and the arc-shaped curved track ( 7 ); wherein a coupling element ( 6 ) connects the arc-shaped curved track ( 7 ) and the moveable holder device ( 5 ); and wherein a curved track follower ( 17 ) is mounted moveable inside a profile element of the arc-shaped curved track ( 7 ), such that the curved track follower ( 17 ) is configured to move radially along the arc-shaped curve track ( 7 ) upon activation of the trigger device ( 19 ).