DE69428765T2 - Vorrichtung zur Erzeugung eines Magnetfeldes für die Bildgebung mittels magnetischer Resonanz - Google Patents

Vorrichtung zur Erzeugung eines Magnetfeldes für die Bildgebung mittels magnetischer Resonanz

Info

Publication number
DE69428765T2
DE69428765T2 DE69428765T DE69428765T DE69428765T2 DE 69428765 T2 DE69428765 T2 DE 69428765T2 DE 69428765 T DE69428765 T DE 69428765T DE 69428765 T DE69428765 T DE 69428765T DE 69428765 T2 DE69428765 T2 DE 69428765T2
Authority
DE
Germany
Prior art keywords
imaging
generating
magnetic field
magnetic resonance
magnetic
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 - Fee Related
Application number
DE69428765T
Other languages
English (en)
Other versions
DE69428765D1 (de
Inventor
Kimiharu Ohta
Masaaki Aoki
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.)
Neomax Co Ltd
Original Assignee
Sumitomo Special Metals Co Ltd
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 Sumitomo Special Metals Co Ltd filed Critical Sumitomo Special Metals Co Ltd
Publication of DE69428765D1 publication Critical patent/DE69428765D1/de
Application granted granted Critical
Publication of DE69428765T2 publication Critical patent/DE69428765T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Radiology & Medical Imaging (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
DE69428765T 1993-12-27 1994-12-16 Vorrichtung zur Erzeugung eines Magnetfeldes für die Bildgebung mittels magnetischer Resonanz Expired - Fee Related DE69428765T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35028993A JP3150248B2 (ja) 1993-12-27 1993-12-27 Ｍｒｉ用磁界発生装置

Publications (2)

Publication Number Publication Date
DE69428765D1 DE69428765D1 (de) 2001-11-29
DE69428765T2 true DE69428765T2 (de) 2002-05-08

Family

ID=18409490

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69428765T Expired - Fee Related DE69428765T2 (de) 1993-12-27 1994-12-16 Vorrichtung zur Erzeugung eines Magnetfeldes für die Bildgebung mittels magnetischer Resonanz

Country Status (6)

Country Link
US (1) US5557205A (de)
EP (1) EP0660129B1 (de)
JP (1) JP3150248B2 (de)
KR (1) KR0135210B1 (de)
CN (1) CN1051375C (de)
DE (1) DE69428765T2 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6265959B1 (en) * 1998-04-29 2001-07-24 New York University Open unipolar magnetic structure
US6351786B2 (en) 1998-08-24 2002-02-26 Racal Instr Inc VXI backplane system improvements and methods
US6377049B1 (en) 1999-02-12 2002-04-23 General Electric Company Residuum rare earth magnet
US6577125B2 (en) * 2000-12-18 2003-06-10 Halliburton Energy Services, Inc. Temperature compensated magnetic field apparatus for NMR measurements
US6518867B2 (en) 2001-04-03 2003-02-11 General Electric Company Permanent magnet assembly and method of making thereof
US6662434B2 (en) * 2001-04-03 2003-12-16 General Electric Company Method and apparatus for magnetizing a permanent magnet
CN1325019C (zh) * 2002-02-15 2007-07-11 株式会社新王磁材 磁场产生装置及其制造方法
EP1642156B1 (de) 2003-05-02 2020-03-04 Halliburton Energy Services, Inc. Systeme und verfahren zum nmr-logging
BRPI0414998A (pt) 2003-10-03 2006-11-21 Halliburton Energy Serv Inc métodos para identificar gás em uma formação geológica, para analisar formações geológicas, e de rmn para analisar formações geológicas, e sistema
US7019609B2 (en) * 2004-06-21 2006-03-28 General Electric Company Magnetic field generating device and method of shimming thereof
CN100415162C (zh) * 2005-03-09 2008-09-03 Ge医疗系统环球技术有限公司 磁体系统和磁共振成像系统
US7365623B2 (en) * 2005-06-10 2008-04-29 Beijing Taijie Yanyuan Medical Engineering Technical Co., Ltd. Permanent magnet, magnetic device for use in MRI including the same, and manufacturing processes thereof
US7199689B1 (en) * 2006-01-09 2007-04-03 Brk Wireless Company, Inc High field NMR permanent magnetic structure
WO2008078246A2 (de) * 2006-12-20 2008-07-03 Philips Intellectual Property & Standards Gmbh Arrangement and method for influencing and/or detecting magnetic particles in a region of action

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8402250A (nl) * 1984-07-17 1986-02-17 Philips Nv Kernspin resonantie apparaat met een rechthoekig permanent magnetische magneet.
JPH079845B2 (ja) * 1986-01-31 1995-02-01 富士電機株式会社 永久磁石形均一磁場マグネット
US5162771A (en) * 1990-10-01 1992-11-10 New York University Highly efficient yoked permanent magnet
JPH05211104A (ja) * 1991-12-05 1993-08-20 Hitachi Medical Corp 磁気共鳴イメージング装置用静磁場発生装置
US5621324A (en) * 1992-03-18 1997-04-15 Sumitomo Special Metals Company Limited Magnetic field generator for MRI
CA2141188A1 (en) * 1992-07-27 1994-02-03 Manlio G. Abele High field magnets for medical applications

Also Published As

Publication number Publication date
EP0660129A1 (de) 1995-06-28
DE69428765D1 (de) 2001-11-29
KR0135210B1 (ko) 1998-04-22
US5557205A (en) 1996-09-17
KR950016663A (ko) 1995-07-20
JP3150248B2 (ja) 2001-03-26
CN1116311A (zh) 1996-02-07
EP0660129B1 (de) 2001-10-24
CN1051375C (zh) 2000-04-12
JPH07201557A (ja) 1995-08-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee