发明授权
- 专利标题: Magnet system and MRI system
- 专利标题(中): 磁体系统和MRI系统
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申请号: US11368926申请日: 2006-03-06
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公开(公告)号: US07262678B2公开(公告)日: 2007-08-28
- 发明人: Fengshun Tan
- 申请人: Fengshun Tan
- 申请人地址: US WI Waukesha
- 专利权人: GE Medical Systems Global Technology Company, LLC
- 当前专利权人: GE Medical Systems Global Technology Company, LLC
- 当前专利权人地址: US WI Waukesha
- 代理机构: Armstrong Teasdale LLP
- 优先权: CN2005100550939 20050309
- 主分类号: H01F7/02
- IPC分类号: H01F7/02
摘要:
With a view to providing a magnet apparatus which can form a medium magnetic field with use of permanent magnets, the magnet apparatus having a pair of parallel disc-like permanent magnets with magnetic poles of mutually opposite polarities opposed to each other through a spacing, further comprises: two pairs of rings constituted by permanent magnets and provided respectively on pole faces of the pair of permanent magnets coaxially and doubly, the two pairs of rings each having a magnetizing direction inclined relative to a magnetizing direction of the pair of permanent magnets and having magnetic poles of mutually opposite polarities opposed to each other through a spacing; and two pairs of cylinders formed by a ferromagnetic material and partitioning the interiors of the pair of permanent magnets respectively coaxially and doubly.
公开/授权文献
- US20060202788A1 Magnet system and MRI system 公开/授权日:2006-09-14