公开(公告)号：EP2353170B1

公开(公告)日：2013-11-20

申请号：EP09744719.7

申请日：2009-10-30

申请人： Emscan Limited

发明人： McGINLEY, John, Vincent, Mario ,  YOUNG, Ian, Robert

IPC分类号： H01F7/06 ,  G01R33/381

CPC分类号： G01R33/381 ,  H01F6/00

摘要： An electromagnet assembly comprises a first pair of substantially co-planar coils wound in opposite senses to each other. It further comprises a second pair of co-planar coils also wound in opposite senses to each other. The coil pairs are arranged substantially parallel to, and spaced apart from, each other. In use, the field shape and direction produced by the first coil pair are substantially mirrored by those produced by the second coil pair.

公开(公告)号：EP2179300B1

公开(公告)日：2013-04-10

申请号：EP08776017.9

申请日：2008-07-22

申请人： Emscan Limited

发明人： McGINLEY, John, Vincent, Mario ,  RISTIC, Mihailo ,  BESANT, Colin, Bowden ,  YOUNG, Ian, Robert

IPC分类号： G01R33/383

CPC分类号： H01F7/06 ,  G01R33/383 ,  H01F3/10 ,  H01F6/04

公开(公告)号：EP2745130A1

公开(公告)日：2014-06-25

申请号：EP12761767.8

申请日：2012-08-07

申请人： Emscan Limited

发明人： MCGINLEY, John Vincent Mario ,  RISTIC, Mihailo ,  BESANT, Colin Bowden ,  YOUNG, Ian Robert

IPC分类号： G01R33/3415 ,  G01R33/3873

CPC分类号： G01R33/3415 ,  G01R33/3873

摘要： A hybrid magnet for an MRI machine, the magnet comprises a superconducting coil and a pole piece assembly associated with therewith. The pole piece assembly comprises a ferromagnetic member having a primary face for facing a subject to be imaged. A shim unit is separated from the primary face of the ferromagnetic member. A plurality of field-shaping permanent magnets is situated between the shim unit and the primary face of the ferromagnetic member.

公开(公告)号：EP2353170A1

公开(公告)日：2011-08-10

申请号：EP09744719.7

申请日：2009-10-30

申请人： Emscan Limited

发明人： McGINLEY, John, Vincent, Mario ,  YOUNG, Ian, Robert

IPC分类号： H01F7/06 ,  G01R33/381

CPC分类号： G01R33/381 ,  H01F6/00

摘要： An electromagnet assembly comprises a first pair of substantially co-planar coils wound in opposite senses to each other. It further comprises a second pair of co-planar coils also wound in opposite senses to each other. The coil pairs are arranged substantially parallel to, and spaced apart from, each other. In use, the field shape and direction produced by the first coil pair are substantially mirrored by those produced by the second coil pair.

摘要翻译： 电磁体组件包括彼此以相反方向缠绕的第一对基本上共面的线圈。 它还包括也以相反的方式彼此缠绕的第二对共平面线圈。 线圈对基本上彼此平行且彼此间隔开地布置。 在使用中，由第一线圈对产生的场形状和方向基本上被由第二线圈对产生的形状和方向镜像。

公开(公告)号：EP2745130B1

公开(公告)日：2018-07-04

申请号：EP12761767.8

申请日：2012-08-07

申请人： Emscan Limited

发明人： MCGINLEY, John Vincent Mario ,  RISTIC, Mihailo ,  BESANT, Colin Bowden ,  YOUNG, Ian Robert

IPC分类号： G01R33/3415 ,  G01R33/3873

CPC分类号： G01R33/3415 ,  G01R33/3873

摘要： A hybrid magnet for an MRI machine, the magnet comprises a superconducting coil and a pole piece assembly associated with therewith. The pole piece assembly comprises a ferromagnetic member having a primary face for facing a subject to be imaged. A shim unit is separated from the primary face of the ferromagnetic member. A plurality of field-shaping permanent magnets is situated between the shim unit and the primary face of the ferromagnetic member.

公开(公告)号：EP2179300A1

公开(公告)日：2010-04-28

申请号：EP08776017.9

申请日：2008-07-22

申请人： Emscan Limited

发明人： McGINLEY, John, Vincent, Mario ,  RISTIC, Mihailo ,  BESANT, Colin, Bowden ,  YOUNG, Ian, Robert

IPC分类号： G01R33/383

CPC分类号： H01F7/06 ,  G01R33/383 ,  H01F3/10 ,  H01F6/04

摘要： An electromagnet comprising a ferromagnetic yoke which comprises a yoke. Mutually opposing first and second pole pieces are provided. The first pole piece is provided with a planar coil having a first side facing the yoke and a second side facing the yoke. A balancing member is arranged on the second side of the planar coil to counterbalance the attractive force between the planar coil and the yoke. The other pole piece may also be provided with a corresponding balancing member.