Single-use lancet device
    1.
    发明授权
    Single-use lancet device 有权
    单用柳叶刀装置

    公开(公告)号:US07282058B2

    公开(公告)日:2007-10-16

    申请号:US10693128

    申请日:2003-10-24

    IPC分类号: A61B17/3209 A61B5/151

    摘要: A single-use lancet device is provided for drawing capillary blood samples. The device includes a body having an upper portion and a lower portion and a trigger carried by the upper portion of the body. The trigger is movable between a first raised position wherein the device is cocked and a second depressed position wherein the device is fired. A needle assembly is provided which is movable between a cocked position and a striking position. A free-floating drive spring is provided for moving the needle assembly from its cocked position to its striking position. A bounceback spring is integrally molded with the needle assembly and includes a pair of generally V-shaped spring arms. A trigger bar has a first position wherein it holds the needle assembly in its cocked position, and the trigger bar has a second position wherein it allows the needle assembly to move to its striking position as the drive spring expands. The trigger carries a pair of guillotine-type blades which sever the trigger bar and thereby releases the needle assembly from its cocked position. Alternate trigger bars are provided which may be deformed rather than severed. The device is also capable of assembly by automatic equipment. The device is incapable of a second use because of the deformation or severing of the trigger bar.

    摘要翻译: 提供单次使用的柳叶刀装置用于吸取毛细血管样本。 该装置包括具有上部和下部的主体以及由主体的上部承载的触发器。 触发器可在设备被锁定的第一升高位置和其中该装置被点火的第二按压位置之间移动。 提供了一种针组件,其可以在一个被压缩的位置和一个打击位置之间移动。 提供了一个自由浮动的驱动弹簧,用于将针组件从其翘起位置移动到其打击位置。 反弹弹簧与针组件一体地模制并且包括一对大致V形的弹簧臂。 触发杆具有第一位置,其中其将针组件保持在其翘起位置,并且触发杆具有第二位置,其中当驱动弹簧膨胀时,触发杆允许针组件移动到其打击位置。 触发器携带一对断头式刀片,其切断触发杆,从而将针组件从其翘起位置释放。 提供了可以变形而不是切断的替代触发条。 该设备还能够通过自动设备组装。 由于触发条的变形或切断,该装置不能再次使用。