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    • 55. 发明申请
    • MAGNETIC POWERED LANCING DRIVE
    • 磁力驱动
    • US20100069943A1
    • 2010-03-18
    • US12211408
    • 2008-09-16
    • Steven N. Roe
    • Steven N. Roe
    • A61B17/32
    • A61B5/15194A61B5/150022A61B5/150167A61B5/150183A61B5/150412A61B5/150503A61B5/15113A61B5/15123A61B5/1519
    • A self-powered lancing drive system and lancing technique uses permanent magnets to initially store the potential energy that is converted to kinetic energy for extending a lancet during lancing. This self-powered lancing drive system is a pure permanent magnet drive that is highly reliable under numerous operating conditions. Permanent magnets can produce stronger magnetic fields at smaller sizes as compared to electromagnets. In one form, the lancing system has a drive permanent magnet that is kept fixed or stationary while the lancet magnet travels along the firing path. With the drive magnet being stationary, the lancet experiences fewer fluctuations in the magnetic field. The lancet vibrates less and is driven straighter into the tissue. In another form, a retraction magnet is positioned at the end of the firing path of the lancet, near the tissue, to enhance retraction of the lancet. In another form, a mechanical structure keeps the magnets in close proximity so that the strength of the magnetic propulsion force is maintained. The mechanical structure in one example is a crank mechanism that confines magnet movement to a circular path. The crank mechanism provides a smooth lancing profile as well as facilitates adjustments to the lancing profile.
    • 自动牵引驱动系统和穿刺技术使用永久磁铁来初始储存转换为动能的势能,以便在穿刺期间延长刺血针。 这种自供电的牵引驱动系统是一种纯永磁驱动器,在许多操作条件下都是高度可靠的。 与电磁铁相比,永磁体可以以较小的尺寸产生更强的磁场。 在一种形式中,穿刺系统具有驱动永磁体,其在柳叶刀磁体沿着击发路径行进时保持固定或静止。 在驱动磁体静止的情况下,刺血针的磁场波动较少。 柳叶刀振动较小,并且更直接地驱动到组织中。 在另一种形式中,收缩磁体位于柳叶刀的靠近组织的射击路径的末端,以增强刺血针的收缩。 在另一种形式中,机械结构保持磁体紧密接近,从而保持磁推进力的强度。 一个示例中的机械结构是将磁体运动限制到圆形路径的曲柄机构。 曲柄机构提供平滑的穿刺剖面,并且便于对穿刺剖面进行调整。