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    • 3. 发明公开
    • LANZETTENVORRICHTUNG
    • EP1901655A1
    • 2008-03-26
    • EP06754473.4
    • 2006-06-21
    • Roche Diagnostics GmbHF.HOFFMANN-LA ROCHE AG
    • DECK, FrankHOERAUF, ChristianHINRICHS, MalteGRUNWALD, TorstenJOTTER, MathiasRUFER, ManfredSTORJOHANN, JensBERG, Hartmut
    • A61B5/15
    • A61B5/15194A61B5/150022A61B5/150412A61B5/150503A61B5/15107A61B5/15117A61B5/15123A61B5/1519
    • The invention relates to a lancet device, by means of which a lancet (8) can be displaced along a puncturing path in order to create a puncture wound on a skin surface, especially to obtain body fluid for diagnostic purposes. Said lancet device comprises a lancet drive (2) with a driving means (4, 20, 24) generating a driving force for a puncturing movement of the lancet (8) along the puncturing path in the direction of the skin surface. The inventive lancet drive (2) is provided with a magnet (5, 23), with the aid of which a magnetic retaining force can be generated that acts counter to the driving force, as well as triggering means (6, 20) which allow the retaining force to be reduced such that the lancet (8) is accelerated in the direction of the skin surface under the effect of the driving force generated by the driving means (4, 20, 24). The invention further relates to a method for creating a puncture wound, in which the driving spring (4) is maintained in a clamped state by means of a magnetic retaining force acting counter to the driving force before a puncture wound is triggered.
    • 刺血针装置技术领域本发明涉及一种刺血针装置,通过该刺血针装置,刺血针(8)可以沿着穿刺路径移动,以便在皮肤表面上形成穿刺伤口,特别是为了获得用于诊断目的的体液。 所述刺血针装置包括具有驱动装置(4,20,24)的刺血针​​驱动器(2),所述驱动装置产生用于刺血针(8)沿着穿刺路径在皮肤表面的方向上的刺穿运动的驱动力。 本发明的刺血针驱动装置(2)设置有磁体(5,23),借助该磁体可以产生与驱动力相反的磁保持力,以及触发装置(6,20),其允许 在所述驱动装置(4,20,24)产生的驱动力的作用下,所述保持力被减小,使得所述刺血针(8)在所述皮肤表面的方向上加速。 本发明还涉及一种用于产生穿刺伤口的方法,其中通过在刺激伤口被触发之前逆着驱动力作用的磁保持力将驱动弹簧(4)保持在夹紧状态。