Pricking device for taking a blood sample
First Claim
1. 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).
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Accused Products
Abstract
The invention relates to a pricking device (1) for taking a blood sample, comprising a movable holding device (5) for pricking means (4), means (12) for driving the movable holding device and a release device (19) for releasing the pricking movement (13) of the pricking means. When the release device has been manually actuated, the movable holding device can be axially moved by a spring force of a drive spring (9) of the drive means (12), and a tensing device (22) for tensing the drive spring. Said tensing device comprises a tensing mechanism (23) comprising means (24) for axially stopping the movable holding device during the tensing of the drive spring and means (25) for working during the tensing of the drive spring enabling said pricking device to be comfortable to use even when being used several times.
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Citations
9 Claims
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1. A pricking device (1) for taking a blood sample, comprising:
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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). - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A pricking device (1) for taking a blood sample, comprising:
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a moveable holder device (5) for a needle (4); a drive means (12) comprising a torsional drive spring (9) for driving the moveable holder device (5) axially; an arc-shaped curved track (7) that guides the moveable holder device (5) in a targeted manner, wherein a coupling element (6) connects the arc-shaped curved track (7) and the moveable holder device (5); a curved track follower mounted moveable inside a profile element of the arc-shaped track, such that the curved track follower is configured to move radially along the arc-shaped curve track upon activation of a trigger device; and a tensioning device (22) for tensioning the torsional drive spring (9) comprising an axially moveable tensioning slide (11) attached to the arc-shaped curved track (7), wherein the torsional drive spring (9) is coupled to the tensioning slide (11) and the arc-shaped curved track (7), wherein the tensioning device (22) comprises at least one coil spring element (25) for performing work during tensioning of the torsional drive spring (9). - View Dependent Claims (9)
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Specification