Patent ID: 8361099
Filing Date: 2013-01-29
Classification: A61B

Abstract:
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.