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    • 1. 发明授权
    • Transversely folded gradient coil
    • 横向折叠梯度线圈
    • US07932722B2
    • 2011-04-26
    • US12430874
    • 2009-04-27
    • Bruce Campbell AmmBulent AkselKristen Ann Wangerin
    • Bruce Campbell AmmBulent AkselKristen Ann Wangerin
    • G01V3/00
    • G01R33/385G01R33/4215Y10T29/4902
    • A gradient coil comprising: a pair of gradient coil units disposed so as to enclose a gradient axis, each gradient coil unit including: a gradient coil substrate with a primary coil section, a shield coil section, and first and second return path sections, the primary coil section disposed between the gradient axis and the shield coil section, the primary coil section configured to produce a magnetic gradient field at the gradient axis when conducting an electrical current; the first return path section foldably connected between the primary coil section and the shield coil section, and the second return path section foldably connected between the shield coil section and the primary coil section such that the gradient coil substrate forms a cylindrical surface having a longitudinal axis substantially aligned with the gradient axis; and a plurality of substantially parallel conductive paths disposed across the cylindrical surface in a direction transverse to the gradient axis.
    • 一种梯度线圈,包括:一对梯度线圈单元,其被设置为包围梯度轴,每个梯形线圈单元包括:具有初级线圈段的梯形线圈基板,屏蔽线圈部分以及第一和第二返回路径部分, 所述初级线圈部分设置在所述梯度轴和所述屏蔽线圈部之间,所述初级线圈部被配置为在进行电流时在所述梯度轴产生磁梯度场; 第一返回路径部分可折叠地连接在初级线圈部分和屏蔽线圈部分之间,第二返回路径部分可折叠地连接在屏蔽线圈部分和初级线圈部分之间,使得梯度线圈基板形成具有纵向轴线的圆柱形表面 基本上与梯度轴对齐; 以及多个基本上平行的导电路径,横向于所述梯度轴线横跨所述圆柱形表面设置。