
基本信息:
- 专利标题: 磁共振成像梯度线圈
- 专利标题(英):Magnetic resonance imaging gradient coil
- 申请号:CN201480034497.7 申请日:2014-06-16
- 公开(公告)号:CN105308472A 公开(公告)日:2016-02-03
- 发明人: J·A·奥弗韦格
- 申请人: 皇家飞利浦有限公司
- 申请人地址: 荷兰艾恩德霍芬
- 专利权人: 皇家飞利浦有限公司
- 当前专利权人: 皇家飞利浦有限公司
- 当前专利权人地址: 荷兰艾恩德霍芬
- 代理机构: 永新专利商标代理有限公司
- 代理人: 王英; 刘炳胜
- 优先权: 13172199.5 2013.06.17 EP
- 国际申请: PCT/EP2014/062528 2014.06.16
- 国际公布: WO2014/202514 EN 2014.12.24
- 进入国家日期: 2015-12-17
- 主分类号: G01R33/421
- IPC分类号: G01R33/421 ; G01R33/385
The invention provides for a magnetic gradient coil (110) for a magnetic resonance imaging system (100, 200). The magnetic gradient coil is actively shielded, wherein the magnetic gradient coil is operable for generating a magnetic field (504). The magnetic field has a cylindrical axis of symmetry (130). The gradient coil has a length (132) parallel with the cylindrical axis of symmetry. The magnetic gradient coil has an outer surface (134). The magnetic field comprises an external magnetic field outside of the outer surface. The external magnetic field has at least four reduced field regions (136, 138, 140, 142) along the length where the modulus of the magnetic field is less than the average of the modulus of the magnetic field along the length.
公开/授权文献:
- CN105308472B 磁共振成像梯度线圈 公开/授权日:2019-01-29
IPC结构图谱:
G | 物理 |
--G01 | 测量;测试 |
----G01R | 测量电变量;测量磁变量(通过转换成电变量对任何种类的物理变量进行测量参见G01类名下的 |
------G01R33/00 | 测量磁变量的装置或仪器 |
--------G01R33/02 | .测量磁场或磁通量的方向或大小 |
----------G01R33/24 | ..用于测量磁场或磁通量的方向或大小 |
------------G01R33/30 | ...样品操作装置,例如样品槽、旋转机构 |
--------------G01R33/421 | ....主或梯度磁场的 |