DE69930356T2 - Pol für einen MRI-Magneten aus laminierten Teilen, ein Verfahren zur Herstellung des Pols und eine Form zum Verkleben der Teile des Pols - Google Patents

Pol für einen MRI-Magneten aus laminierten Teilen, ein Verfahren zur Herstellung des Pols und eine Form zum Verkleben der Teile des Pols Download PDF

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Publication number
DE69930356T2
DE69930356T2 DE69930356T DE69930356T DE69930356T2 DE 69930356 T2 DE69930356 T2 DE 69930356T2 DE 69930356 T DE69930356 T DE 69930356T DE 69930356 T DE69930356 T DE 69930356T DE 69930356 T2 DE69930356 T2 DE 69930356T2
Authority
DE
Germany
Prior art keywords
pole piece
plate
plates
magnet
pole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69930356T
Other languages
German (de)
English (en)
Other versions
DE69930356D1 (de
Inventor
Evangelos Trifon Schenectady Laskaris
Bulent Clifton Park Aksel
William Daniel Clifton Park Barber
Paul Shadforth Stephentown Thompson
Johannes Martinus Niskayuna Vanoort
Michele Burnt Hills Ogle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of DE69930356D1 publication Critical patent/DE69930356D1/de
Publication of DE69930356T2 publication Critical patent/DE69930356T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0278—Magnetic circuits with PM for magnetic field generation for generating uniform fields, focusing, deflecting electrically charged particles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/383—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using permanent magnets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S29/00—Metal working
    • Y10S29/001—Method or apparatus involving adhesive
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49075—Electromagnet, transformer or inductor including permanent magnet or core
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49075—Electromagnet, transformer or inductor including permanent magnet or core
    • Y10T29/49078—Laminated

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
DE69930356T 1998-11-24 1999-11-24 Pol für einen MRI-Magneten aus laminierten Teilen, ein Verfahren zur Herstellung des Pols und eine Form zum Verkleben der Teile des Pols Expired - Lifetime DE69930356T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/198,507 US6259252B1 (en) 1998-11-24 1998-11-24 Laminate tile pole piece for an MRI, a method manufacturing the pole piece and a mold bonding pole piece tiles
US198507 1998-11-24

Publications (2)

Publication Number Publication Date
DE69930356D1 DE69930356D1 (de) 2006-05-11
DE69930356T2 true DE69930356T2 (de) 2007-03-01

Family

ID=22733655

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69930356T Expired - Lifetime DE69930356T2 (de) 1998-11-24 1999-11-24 Pol für einen MRI-Magneten aus laminierten Teilen, ein Verfahren zur Herstellung des Pols und eine Form zum Verkleben der Teile des Pols

Country Status (4)

Country Link
US (3) US6259252B1 (https=)
EP (1) EP1004889B1 (https=)
JP (1) JP4445078B2 (https=)
DE (1) DE69930356T2 (https=)

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US6552639B2 (en) 2000-04-28 2003-04-22 Honeywell International Inc. Bulk stamped amorphous metal magnetic component
US6825758B1 (en) 2000-06-26 2004-11-30 Nokian Tyres Plc System for detecting and communicating operational characteristics of tires telecommunicationally and a method therefor
US6822449B1 (en) 2000-11-22 2004-11-23 Fonar Corporation Ferromagnetic frame with laminated carbon steel
US7271689B1 (en) 2000-11-22 2007-09-18 Fonar Corporation Magnet structure
US6970061B1 (en) * 2000-11-22 2005-11-29 Fonar Corporation Magnet structure
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US7463129B1 (en) 2000-11-22 2008-12-09 Fonar Corporation Magnet structure
US7248137B1 (en) 2000-11-22 2007-07-24 Fonar Corporation Magnet structure
JP3535107B2 (ja) * 2001-03-02 2004-06-07 株式会社日立製作所 磁極及びそれを用いた磁石装置
US6662434B2 (en) 2001-04-03 2003-12-16 General Electric Company Method and apparatus for magnetizing a permanent magnet
US6518867B2 (en) * 2001-04-03 2003-02-11 General Electric Company Permanent magnet assembly and method of making thereof
US7084632B2 (en) * 2002-04-01 2006-08-01 Shenyang Neusoft Bopu Nmr Tech Co., Ltd. Permanent magnet for magnet resonance
US6984982B2 (en) * 2002-07-29 2006-01-10 Ge Medical Systems Global Technology Company Llc Method and system for shimming an MRI magnet assembly
US6873239B2 (en) 2002-11-01 2005-03-29 Metglas Inc. Bulk laminated amorphous metal inductive device
US6737951B1 (en) 2002-11-01 2004-05-18 Metglas, Inc. Bulk amorphous metal inductive device
US7242191B2 (en) * 2002-11-25 2007-07-10 General Electric Company Cold mass support structure and helium vessel of actively shielded high field open MRI magnets
US6825666B2 (en) * 2002-12-23 2004-11-30 General Electric Company Pole face for permanent magnet MRI with laminated structure
US6859123B2 (en) * 2003-04-03 2005-02-22 Ge Medical Systems Global Technology Company, Llc Methods and apparatus for positioning permanent magnetic blocks
US7235910B2 (en) 2003-04-25 2007-06-26 Metglas, Inc. Selective etching process for cutting amorphous metal shapes and components made thereof
CN100504432C (zh) * 2003-05-23 2009-06-24 西门子（中国）有限公司 磁共振设备中的静磁场调节方法及其静磁场发生装置
CN100434928C (zh) * 2003-05-23 2008-11-19 西门子（中国）有限公司 一种可用于磁共振设备的磁场发生系统
US20050062572A1 (en) * 2003-09-22 2005-03-24 General Electric Company Permanent magnet alloy for medical imaging system and method of making
US7423431B2 (en) * 2003-09-29 2008-09-09 General Electric Company Multiple ring polefaceless permanent magnet and method of making
US7148689B2 (en) * 2003-09-29 2006-12-12 General Electric Company Permanent magnet assembly with movable permanent body for main magnetic field adjustable
US7218195B2 (en) * 2003-10-01 2007-05-15 General Electric Company Method and apparatus for magnetizing a permanent magnet
US6937018B2 (en) * 2003-10-31 2005-08-30 General Electric Company Systems and methods for fabricating pole pieces for magnetic resonance imaging systems
US6956375B2 (en) * 2004-01-09 2005-10-18 General Electric Company Magnetic resonance imaging magnetic field generator
US7631411B2 (en) * 2004-06-28 2009-12-15 General Electric Company Method of manufacturing support structure for open MRI
US7319326B2 (en) * 2004-09-23 2008-01-15 University Of New Brunswick Sensor and magnetic field apparatus suitable for use in for unilateral nuclear magnetic resonance and method for making same
JP2006149722A (ja) * 2004-11-30 2006-06-15 Ge Medical Systems Global Technology Co Llc マグネットシステムおよびｍｒｉ装置
US8237440B2 (en) * 2005-09-23 2012-08-07 University Of New Brunswick Magnetic field generator suitable for unilateral nuclear magnetic resonance and method for making same
US7400147B2 (en) * 2005-11-03 2008-07-15 Uri Rapoport Self-fastening cage surrounding a magnetic resonance device and methods thereof
CA2672699A1 (en) * 2006-11-24 2008-05-29 University Of New Brunswick Magnet array
JP4668238B2 (ja) * 2007-05-08 2011-04-13 住友重機械工業株式会社 蓄冷式冷凍機およびパルスチューブ冷凍機
CN102316798A (zh) * 2008-12-18 2012-01-11 古鲁姆·泰克勒马林 用于磁共振成像的小型非均匀永磁场发生器
JP5349177B2 (ja) * 2009-07-09 2013-11-20 株式会社東芝 磁気共鳴イメージング装置
KR20170048560A (ko) 2014-09-05 2017-05-08 하이퍼파인 리서치, 인크. 낮은 필드 자기 공명 이미징 방법들 및 장치
US10627464B2 (en) 2016-11-22 2020-04-21 Hyperfine Research, Inc. Low-field magnetic resonance imaging methods and apparatus
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Also Published As

Publication number Publication date
EP1004889A2 (en) 2000-05-31
JP4445078B2 (ja) 2010-04-07
EP1004889B1 (en) 2006-03-15
EP1004889A3 (en) 2000-08-23
US6694602B2 (en) 2004-02-24
US6429761B2 (en) 2002-08-06
JP2000157510A (ja) 2000-06-13
US20020021129A1 (en) 2002-02-21
US6259252B1 (en) 2001-07-10
US20010005165A1 (en) 2001-06-28
DE69930356D1 (de) 2006-05-11

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