DEVICE FOR CORRECTING SPINAL DEFORMITIES
    167.
    发明公开
    DEVICE FOR CORRECTING SPINAL DEFORMITIES 有权
    VORRICHTUNG ZUR KORREKTUR VONWIRBELSÄULENDEFORMITÄTEN

    公开(公告)号:EP1539005A4

    公开(公告)日:2009-06-17

    申请号:EP03792100

    申请日:2003-08-25

    IPC分类号: A61B17/00 A61B17/70

    摘要: The present invention relates generally to a device of and a method for correcting spinal deformities, such as scoliosis and kyphosis. The invention employs the superelasticity or pseudoelasticity, such as found in a nickel-titanium alloy, to provide a continuous, predictable, and controllable correction force and to achieve a gradual and full correction. The correction force can be exerted on the deformed spine either at the time of the spine surgery or after the surgery or both, to afford a full or substantially full correction. The continuous and controllable correction force of the present invention is safer than an instantaneous and large correction force applied only at the time of surgery. Additionally, the continuous and controllable correction force is capable of gradually and fully correcting the spinal deformities without any post-operative manipulation of the correction device or re-operation.

    摘要翻译: 本发明一般涉及用于矫正诸如脊柱侧凸和脊柱后凸的脊柱畸形的装置和方法。 本发明使用超弹性或假弹性,例如在镍钛合金中发现的,以提供连续的,可预测的和可控的校正力并实现逐渐和全面校正。 矫正力可以在脊柱手术时或手术后或两者都施加在变形的脊柱上,以提供完全或基本上完全的矫正。 本发明的连续且可控的校正力比仅在手术时施加的瞬时大的校正力更安全。 此外,连续和可控的校正力能够逐渐且完全地矫正脊柱畸形,而无需对矫正装置进行任何操作后操作或重新操作。

    AC-DC CONVERTER WITH LOW RIPPLE OUTPUT
    170.
    发明公开
    AC-DC CONVERTER WITH LOW RIPPLE OUTPUT 审中-公开
    具有输出低纹波AC-DC转换器

    公开(公告)号:EP1481466A4

    公开(公告)日:2007-04-18

    申请号:EP02807001

    申请日:2002-12-30

    申请人: UNIV HONG KONG

    CPC分类号: H02M7/17 H02M7/08

    摘要: An AC-DC converter that includes a plurality of power conversion units that overlay their signals to generate a DC signal with low voltage level, small voltage and current ripples, but high DC current. The DC signal is further filtered by a LC low pass filter to further minimize the ripples before output to the load. In one embodiment, the plurality of power conversion units is preferably powered by a plurality of input pulse generators. In an alternative embodiment, the power conversion units is powered by a input pulse generator circuit that includes a plurality of n-channel MOSFETs arranged in a full bridge configuration whose gate voltages are controlled by a plurality of pulse generators.