Puncture aid with protection against reuse
First Claim
1. A puncture aid, comprising:
- a housing which has an opening and in which a lancet holder with a lancet is displaceably mounted, the lancet holder being connected to a spring element and having a bearing element, the housing having a support surface arranged such that the bearing element rests on the support surface in a first position of the lancet holder;
a trigger, actuation of which transfers the lancet holder to a second position by means of a rotation of the bearing element and the support surface with respect to one another, wherein the bearing element falls from the support surface in the second position of the lancet holder, during which, the spring element, tensioned prior to the falling movement, at least partially relaxes and moves the lancet holder relative to the housing, such that the tip of the lancet emerges from the opening of the housing; and
wherein, the puncture aid comprises a blocking element configured to block a second rotation of the bearing element and the support surface with respect to one another after the trigger has transferred the lancet holder to the second position, the second rotation comprising a return rotation of the bearing element and the support surface relative to one another from the second position to the first position, or the second rotation comprising a renewed rotation of the bearing element relative to the support surface from the first position to the second position in which the bearing element falls from the support surface, wherein the blocking element is positioned to block a movement path of the bearing element onto the support surface or to block access to the bearing element, whereby reuse of the puncture aid is prevented.
5 Assignments
0 Petitions
Accused Products
Abstract
The present invention provides a puncture aid comprising a housing in which a lancet holder with a lancet is displaceably mounted, the lancet holder being connected to a spring element. The lancet holder has at least one bearing element and the housing has a support surface arranged such that the bearing element rests on the support surface in a first position of the lancet holder. A trigger unit is provided, actuation of which transfer the lancet holder to a second position by means of a relative rotational movement of the bearing element and the support surface, so that the bearing element falls from the support surface in the second position of the lancet holder, and the tensioned spring element at least partially relaxes and moves the lancet holder such that the tip of the lancet emerges from the opening of the housing. The puncture aid includes a blocking element which is arranged such that it blocks a relative rotational movement of the bearing element and the support surface with respect to one another after the trigger unit has transferred the lancet holder to the second position with the result that reuse of the puncture aid is prevented.
10 Citations
37 Claims
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1. A puncture aid, comprising:
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a housing which has an opening and in which a lancet holder with a lancet is displaceably mounted, the lancet holder being connected to a spring element and having a bearing element, the housing having a support surface arranged such that the bearing element rests on the support surface in a first position of the lancet holder; a trigger, actuation of which transfers the lancet holder to a second position by means of a rotation of the bearing element and the support surface with respect to one another, wherein the bearing element falls from the support surface in the second position of the lancet holder, during which, the spring element, tensioned prior to the falling movement, at least partially relaxes and moves the lancet holder relative to the housing, such that the tip of the lancet emerges from the opening of the housing; and wherein, the puncture aid comprises a blocking element configured to block a second rotation of the bearing element and the support surface with respect to one another after the trigger has transferred the lancet holder to the second position, the second rotation comprising a return rotation of the bearing element and the support surface relative to one another from the second position to the first position, or the second rotation comprising a renewed rotation of the bearing element relative to the support surface from the first position to the second position in which the bearing element falls from the support surface, wherein the blocking element is positioned to block a movement path of the bearing element onto the support surface or to block access to the bearing element, whereby reuse of the puncture aid is prevented. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A puncture aid, comprising:
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a housing having a support surface; a lancet holder movably mounted in the housing and including a bearing element which rests on the support surface when the lancet holder is in a first position; a trigger, movement of which causes the bearing element and the support surface to rotate relative to one another and the lancet holder to rotate to a second position in which the bearing element falls from the support surface; a spring in engagement with the lancet holder and being tensioned prior to the lancet holder rotating to the second position, the spring at least partially relaxing when the lancet holder rotates to the second position and thereby moving the lancet holder in a puncturing direction; and a blocking element configured to prevent a return rotation of the lancet holder to the first position or a renewed rotation of the lancet holder from the first position to the second position in which the bearing element falls from the support surface, wherein the blocking element is positioned to block a movement path of the bearing element onto the support surface or to block access to the bearing element, whereby reuse of the puncture aid is prevented. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A puncture aid, comprising:
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a housing defining a support surface; a lancet holder movably mounted in the housing and having a bearing element that rests on the support surface when the lancet holder is in a first position; a spring engaging the lancet holder; the lancet holder being rotatable relative to the housing from the first position to a second position in which the bearing member is removed from the support surface, whereupon the spring advances the lancet holder in a puncturing direction; and a blocking element configured to prevent a second rotation of the lancet holder, the second rotation comprising a return rotation of the lancet holder relative to the housing from the second position to the first position, or the second rotation comprising a renewed rotation of the lancet holder relative to the housing from the first position to the second position in which the bearing element falls from the support surface, wherein the blocking element is positioned to block a movement path of the bearing element onto the support surface or to block access to the bearing element, whereby reuse of the puncture aid is prevented. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification